PROVIDENCE HEALTH AND SERVICES - OREGON
EMERGENCY MEDICINE · PORTLAND, OR · 217 providers · hospital-affiliated · (503) 216-2213
Provider volumes, all codes · CY2024
Group overview · all codes · CY2024
All figures are attributed (single-group clinicians only) and disclosed (CMS suppresses fewer-than-11-beneficiary rows) Medicare Part B fee-for-service — a subset, never complete totals. Percentile and peer figures are billed-volume positions, not statements about care. See Methods & Sources.
| NPI | Provider | Credentials | Type | City | St | Services (all codes) |
|---|---|---|---|---|---|---|
| 1528526829 | Westman, Rachel | AGPCNP | Nurse Practitioner | Puyallup | WA | premium |
| 1932554292 | Dibenedetto, Jared | Emergency Medicine | Worcester | MA | premium | |
| 1265060131 | Meredith, Andrew | MD | Emergency Medicine | Portland | OR | premium |
| 1679070874 | Cole, Katie | MD | Emergency Medicine | Tacoma | WA | premium |
| 1407146822 | Smith, William | M.D. | Emergency Medicine | Portland | OR | premium |
| 1598840183 | Kitzis, Alejandro | M.D. | Emergency Medicine | Portland | OR | premium |
| 1770102329 | Kong, Carolin | Nurse Practitioner | Puyallup | WA | premium | |
| 1275030926 | Dougher, Carly | MD, MPH | Emergency Medicine | Portland | OR | premium |
| 1740234996 | Halvorson, Derek | MD | Emergency Medicine | Vancouver | WA | premium |
| 1780181578 | Walker, Philip | MD | Emergency Medicine | Portland | OR | premium |
| 1740817311 | Moran, Ashley | Emergency Medicine | Portland | OR | premium | |
| 1952729519 | Bao, Brian | MD PHD | Emergency Medicine | Portland | OR | premium |
| 1881782035 | Brentlinger, Eric | M.D. | Emergency Medicine | Portland | OR | premium |
| 1942249115 | Weaver, Simon | MD | Emergency Medicine | Vancouver | WA | premium |
| 1962769802 | Friesen, Phillip | D.O. | Emergency Medicine | Austin | TX | premium |
| 1326401290 | Maivelett, Jordan | M.D. | Emergency Medicine | Chicago | IL | premium |
| 1699039578 | Keogh, Alexandra | M.D. | Emergency Medicine | Tucson | AZ | premium |
| 1639597503 | Appy, Shannon | MD | Emergency Medicine | Portland | OR | premium |
| 1497288815 | Boaglio, Sean | DO, MAS, DTMH | Emergency Medicine | Nashville | TN | premium |
| 1821463589 | Weggenman, Erryn | PHYSICIAN ASSISTANT | Physician Assistant | Portland | OR | premium |
| 1932295938 | Douglas, Daniel | M.D. | Emergency Medicine | Portland | OR | premium |
| 1770876872 | Wang, Yvonne | M.D. | Emergency Medicine | Portland | OR | premium |
| 1437592581 | Valenzuela, Stacy | MD | Emergency Medicine | Portland | OR | premium |
| 1730766486 | Khalsa, Sirikrishna | MD | Emergency Medicine | Oak Lawn | IL | premium |
| 1245287754 | Seidel-Hart, Taryn | N.P. | Nurse Practitioner | Hillsboro | OR | premium |
| 1114775145 | Nerenberg, Bronson | Nurse Practitioner | Portland | OR | premium | |
| 1902842081 | Barlow, Robert | MD | Family Practice | Beaverton | OR | premium |
| 1902339971 | Al-Kourainy, Nabil · member of 7 groups | MD | Infectious Disease | Portland | OR | premium |
| 1790312379 | Anekonda, Vishwanath · member of 2 groups | MD | Internal Medicine | Boston | MA | premium |
| 1134495625 | Apostolopoulos, George · member of 2 groups | M.D. | Emergency Medicine | Portland | OR | premium |
| 1861412884 | Bak, Kathy · member of 2 groups | M.D. | Family Practice | Portland | OR | premium |
| 1134500358 | Ban, Lan · member of 2 groups | MD | Internal Medicine | Portland | OR | premium |
| 1295225951 | Barayuga, Stephanie · member of 2 groups | MD | Internal Medicine | Lake Oswego | OR | premium |
| 1760667059 | Barve, Amit · member of 2 groups | MD | Hospitalist | Oregon City | OR | premium |
| 1487697488 | Beckerman, James · member of 7 groups | MD | Cardiology | Portland | OR | premium |
| 1821415720 | Begum, Zinnat · member of 2 groups | MD, MHS | Family Practice | Las Cruces | NM | premium |
| 1164765111 | Bensch, Jason · member of 8 groups | M.D. | Cardiology | Portland | OR | premium |
| 1083682744 | Bieniek, Edward · member of 2 groups | MD | General Surgery | Portland | OR | premium |
| 1275641060 | Bishop-Perdue, Nicole · member of 2 groups | MD | Pediatric Medicine | Portland | OR | premium |
| 1528153228 | Bizovi, Kenneth · member of 2 groups | M.D. | Emergency Medicine | Portland | OR | premium |
| 1891885380 | Blackall, Douglas · member of 7 groups | MD | Pathology | Portland | OR | premium |
| 1730125022 | Bluhm, Jeffrey · member of 3 groups | M.D. | Pulmonary Disease | Portland | OR | premium |
| 1184849762 | Brancato, Scott · member of 5 groups | MD | Clinical Cardiac Electrophysiology | Tualatin | OR | premium |
| 1700928728 | Bryant, Jane · member of 3 groups | ACNP | Nurse Practitioner | Portland | OR | premium |
| 1114594157 | Byers, Sean · member of 2 groups | MD | Internal Medicine | Portland | OR | premium |
| 1245451038 | Cai, Xiaohong · member of 7 groups | MD | Pathology | Portland | OR | premium |
| 1316051410 | Calopiz, Clarice · member of 2 groups | M.D. | Family Practice | Hillsboro | OR | premium |
| 1609394253 | Carey, Christine · member of 2 groups | PA-C | Physician Assistant | Portland | OR | premium |
| 1710921085 | Caulfield, Todd · member of 6 groups | MD | Interventional Cardiology | Portland | OR | premium |
| 1902264559 | Caverley, Zachary · member of 4 groups | PA | Physician Assistant | Seaside | OR | premium |
| 1215436159 | Chalupsky, Megan · member of 2 groups | MD | Internal Medicine | Portland | OR | premium |
| 1083653679 | Chapin, William · member of 2 groups | MD | Endocrinology | Portland | OR | premium |
| 1124525951 | Chapman, Christopher · member of 2 groups | Emergency Medicine | Lebanon | NH | premium | |
| 1619349966 | Chefor, Lyliane · member of 2 groups | FNP | Nurse Practitioner | Portland | OR | premium |
| 1245643394 | Chen, Athena · member of 6 groups | MD | Pathology | Boston | MA | premium |
| 1386178796 | Chen, Kuan Ju · member of 2 groups | DO | Pediatric Medicine | Plano | TX | premium |
| 1376924670 | Chiu, Annie · member of 2 groups | M.D. | Neurology | Portland | OR | premium |
| 1184074833 | Combs, Rebecca · member of 2 groups | PA-C | Physician Assistant | Portland | OR | premium |
| 1770794901 | Corman, David · member of 2 groups | M.D. | Hospitalist | Portland | OR | premium |
| 1154327625 | Davies, William · member of 6 groups | M.D. | Cardiology | Oregon City | OR | premium |
| 1982610481 | Davies, Crispin · member of 7 groups | MD | Cardiology | Portland | OR | premium |
| 1477997724 | Dawson, Kathryn · member of 2 groups | M.D. | Interventional Cardiology | Portland | OR | premium |
| 1982011508 | Devose, Fusun · member of 5 groups | NP | Nurse Practitioner | Oxford | NC | premium |
| 1821607201 | Dharampal, Navjit · member of 3 groups | MD, MTM | Thoracic Surgery | Portland | OR | premium |
| 1487876827 | Duffy, Regan · member of 3 groups | MD | Hematology-Oncology | Portland | OR | premium |
| 1578784369 | Durham, James · member of 7 groups | MD | Pathology | Portland | OR | premium |
| 1477174076 | Edwards, Nathaniel · member of 3 groups | MD | Internal Medicine | Portland | OR | premium |
| 1063767317 | Edwin, Natasha · member of 3 groups | M.D. | Hematology | Portland | OR | premium |
| 1861011348 | Fandel, Joel · member of 4 groups | Family Practice | Glen Burnie | MD | premium | |
| 1760789176 | Faulds, Christine · member of 2 groups | DNP, ARNP, ACNPC-AG | Nurse Practitioner | Vancouver | WA | premium |
| 1154646610 | Foster, Theodore · member of 8 groups | D.O., M.P.H | Internal Medicine | Newberg | OR | premium |
| 1023229838 | Frank, Matthew · member of 5 groups | M.D. | Pathology | Portland | OR | premium |
| 1033401906 | Gaff, Laura · member of 2 groups | M.D. | Family Practice | Lake Oswego | OR | premium |
| 1285741843 | Gelow, Jill · member of 3 groups | M.D. | Cardiology | Portland | OR | premium |
| 1518156504 | Gerber-Gore, Paula · member of 17 groups | MD | Neurology | Portland | OR | premium |
| 1114656204 | Ghandour, Jihad · member of 2 groups | Internal Medicine | Portland | OR | premium | |
| 1578145843 | Giger, Hannah · member of 2 groups | DO | Internal Medicine | Portland | OR | premium |
| 1790749422 | Gluckman, Tyler · member of 2 groups | M.D. | Cardiology | Portland | OR | premium |
| 1720348568 | Gonzales, Lela · member of 2 groups | MD | Hospitalist | Portland | OR | premium |
| 1174002976 | Goodrich, Jennifer · member of 2 groups | AGACNP-BC | Nurse Practitioner | Portland | OR | premium |
| 1407972821 | Goodwin, Daniel · member of 6 groups | MD | Cardiology | Portland | OR | premium |
| 1083819551 | Greenberg, Mathew · member of 6 groups | MD | Pathology | Portland | OR | premium |
| 1922080480 | Gregory, Kenton · member of 2 groups | MD | Cardiology | Portland | OR | premium |
| 1497167613 | Griffith, Stephanie · member of 2 groups | MD | Internal Medicine | Portland | OR | premium |
| 1629042122 | Grisham, Andre · member of 2 groups | MD | General Surgery | Tigard | OR | premium |
| 1952556748 | Grossmann, Allie · member of 2 groups | M.D. PH.D. | Pathology | Salt Lake City | UT | premium |
| 1134678972 | Haas, Carly · member of 3 groups | CRNP | Nurse Practitioner | Mobile | AL | premium |
| 1609172006 | Hainley, Nicole · member of 2 groups | AGACNP, FNP | Nurse Practitioner | Portland | OR | premium |
| 1578008397 | Hartwig, Benjamin · member of 3 groups | AGACNP | Nurse Practitioner | Portland | OR | premium |
| 1831681618 | Hermansen, Ryan · member of 4 groups | PA-C | Physician Assistant | Salem | OR | premium |
| 1114919610 | Hirsch, Dale · member of 7 groups | MD | Cardiology | Portland | OR | premium |
| 1326433475 | Hobbs, Evthokia · member of 3 groups | M.D. | Medical Oncology | Portland | OR | premium |
| 1902991672 | Hotanalli, Vaishali · member of 2 groups | M.D. | Hospitalist | Portland | OR | premium |
| 1346232857 | Huang, Xiaoyan · member of 8 groups | MD | Cardiology | Portland | OR | premium |
| 1437713369 | Hudson, Leslie · member of 3 groups | DO | Internal Medicine | Portland | OR | premium |
| 1619990702 | Hussain, Sanaa · member of 5 groups | MD | Pathology | Albuquerque | NM | premium |
| 1134212814 | Jan, Elroy · member of 2 groups | M.D. | Hospitalist | Portland | OR | premium |
| 1043447873 | Jones, Brandon · member of 2 groups | M.D. | Interventional Cardiology | Portland | OR | premium |
| 1306844683 | Jones, Darren · member of 3 groups | M.D. | Clinical Cardiac Electrophysiology | Portland | OR | premium |
| 1720284623 | Kaimaktchiev, Vassil · member of 6 groups | M.D. | Pathology | Hood River | OR | premium |
| 1437312766 | Kamayangi, Olivia · member of 2 groups | M.D. | Family Practice | Lake Oswego | OR | premium |
| 1104093665 | Kansara, Amit · member of 9 groups | MD | Neurology | Portland | OR | premium |
| 1760771380 | Kay, Jenna · member of 2 groups | M.D. | Advanced Heart Failure and Transplant Cardiology | Portland | OR | premium |
| 1013943661 | Kearns, Brian · member of 3 groups | MD | Hospitalist | Portland | OR | premium |
| 1275618878 | Kim, Evelyn · member of 2 groups | M.D. | Emergency Medicine | Portland | OR | premium |
| 1164462784 | Kimberly, Brent · member of 3 groups | DO | Hospitalist | Portland | OR | premium |
| 1982022778 | Koethe, Yilun · member of 5 groups | M.D. | Diagnostic Radiology | Portland | OR | premium |
| 1821556143 | Koschel, Bethany · member of 2 groups | DO | Internal Medicine | Portland | OR | premium |
| 1124293626 | Lanciault, Christian · member of 7 groups | MD, PHD | Pathology | Pittsburgh | PA | premium |
| 1992123475 | Layoun, Michael · member of 8 groups | MD | Cardiology | Portland | OR | premium |
| 1760836696 | Lee-Barnes, Edyth · member of 2 groups | M.D. | Internal Medicine | Portland | OR | premium |
| 1851785513 | Lentz, Jenifer · member of 2 groups | DO | Internal Medicine | Portland | OR | premium |
| 1124021753 | Lewis, Stacy · member of 3 groups | MD | Medical Oncology | Portland | OR | premium |
| 1134348543 | Li, Melissa · member of 7 groups | MD | Pathology | Portland | OR | premium |
| 1558924753 | Lien, Susan · member of 3 groups | NP | Nurse Practitioner | Portland | OR | premium |
| 1598149650 | Lin, Emily · member of 2 groups | MD | Hematology-Oncology | Portland | OR | premium |
| 1467444331 | Litt, Robert · member of 6 groups | M.D. | Cardiology | Portland | OR | premium |
| 1568621829 | Loera, Nikolas · member of 2 groups | MD | Emergency Medicine | Portland | OR | premium |
| 1013344506 | Long, Cameron · member of 2 groups | MD | Pulmonary Disease | Portland | OR | premium |
| 1164715991 | Madden, Bryan · member of 2 groups | M.D. | Emergency Medicine | Detroit | MI | premium |
| 1578198388 | Malesz, Alexandra · member of 2 groups | DO MPH | Internal Medicine | Portland | OR | premium |
| 1487266250 | Marick, Joshua · member of 2 groups | PA-C | Physician Assistant | Hillsboro | OR | premium |
| 1558342857 | Martel, Maritza · member of 5 groups | MD | Pathology | Portland | OR | premium |
| 1790131472 | Miller, Danielle · member of 2 groups | DO | Family Practice | Portland | OR | premium |
| 1861428278 | Mizgajski, Adam · member of 2 groups | MD | Hospitalist | Portland | OR | premium |
| 1124361241 | Moon, Kristina · member of 5 groups | D.O. | Cardiology | Newberg | OR | premium |
| 1609872753 | Moon, David · member of 2 groups | MD | Emergency Medicine | Portland | OR | premium |
| 1174555312 | Morse, Robert · member of 3 groups | D.O. | Cardiology | Astoria | OR | premium |
| 1225096167 | Morss, Alexander · member of 5 groups | MD | Cardiology | Portland | OR | premium |
| 1629237730 | Moung-Wen, Christine · member of 4 groups | M.D. | Pathology | Portland | OR | premium |
| 1073172615 | Moussalli, Dana · member of 2 groups | AGACNP | Nurse Practitioner | Portland | OR | premium |
| 1740423847 | Munly, Michael · member of 2 groups | M.D. | Colorectal Surgery (Proctology) | Portland | OR | premium |
| 1013397256 | Nafday, Abhinav · member of 2 groups | Emergency Medicine | Ann Arbor | MI | premium | |
| 1992334999 | Nagappan, Raj · member of 2 groups | MD | Internal Medicine | Portland | OR | premium |
| 1770702839 | Nawaz, Fareha · member of 3 groups | MD | Nephrology | Portland | OR | premium |
| 1063646255 | Nelson, Nicholas · member of 2 groups | MD | Hospitalist | Portland | OR | premium |
| 1679886626 | Ng, Jane · member of 2 groups | M.B.B.S. | Neurosurgery | Portland | OR | premium |
| 1154663987 | Nguyen, Vidang · member of 3 groups | M.D. | Advanced Heart Failure and Transplant Cardiology | Portland | OR | premium |
| 1275565814 | Nguyen, Duc · member of 2 groups | DO | Internal Medicine | Portland | OR | premium |
| 1679894877 | Nguyen, Anh · member of 2 groups | MD | Hospitalist | Portland | OR | premium |
| 1851731681 | Nguyen, Matthew · member of 2 groups | MD | Internal Medicine | Portland | OR | premium |
| 1942236559 | Ojha, Chandra · member of 2 groups | MD | Hospitalist | Portland | OR | premium |
| 1962889634 | Patel, Kishan · member of 8 groups | M.D. | Neurology | Portland | OR | premium |
| 1518494517 | Paulson, Nathan · member of 5 groups | Pathology | New Haven | CT | premium | |
| 1104864792 | Peterdy, Geraldine · member of 7 groups | MD | Pathology | Liberty Lake | WA | premium |
| 1841551041 | Pham, Thuy-Tien · member of 2 groups | M.D. | Internal Medicine | Tigard | OR | premium |
| 1720264476 | Poonyagariyagorn, Hataya · member of 2 groups | M.D. | Pulmonary Disease | Portland | OR | premium |
| 1851899884 | Popp, Lauren · member of 2 groups | FNP | Nurse Practitioner | Portland | OR | premium |
| 1114165503 | Prince, Paula · member of 2 groups | AGACNP | Nurse Practitioner | Portland | OR | premium |
| 1750373056 | Rahimtoola, Aly · member of 8 groups | MD | Cardiology | Portland | OR | premium |
| 1386925899 | Rajabali, Alefiyah · member of 2 groups | MD | Clinical Cardiac Electrophysiology | Portland | OR | premium |
| 1831456979 | Ravi, Sriram · member of 7 groups | MD | Cardiology | Portland | OR | premium |
| 1861697682 | Remick, Joshua · member of 2 groups | M.D. | Advanced Heart Failure and Transplant Cardiology | Portland | OR | premium |
| 1053610493 | Riaz, Muhammad · member of 6 groups | M.D | Family Practice | Longview | WA | premium |
| 1295020477 | Rice-Stitt, Travis · member of 7 groups | MD | Pathology | Portland | OR | premium |
| 1073625703 | Riley, Steven · member of 5 groups | M.D. | Cardiology | Oregon City | OR | premium |
| 1063657328 | Rontal, Andrew · member of 10 groups | M.D. | Neurology | Portland | OR | premium |
| 1811053911 | Ross, Alicia · member of 6 groups | M.D. | Advanced Heart Failure and Transplant Cardiology | Hood River | OR | premium |
| 1861982530 | Rozenberg, Boris · member of 2 groups | DO | Internal Medicine | Portland | OR | premium |
| 1659694735 | Ryan, William · member of 7 groups | M.D. | Pathology | Portland | OR | premium |
| 1134706823 | Rymer, Jordan · member of 2 groups | DO | Internal Medicine | Portland | OR | premium |
| 1942429345 | Sacker, Allen · member of 3 groups | MD | Pathology | Portland | OR | premium |
| 1386025401 | Saffarzadeh, Areo · member of 3 groups | M.D. | Thoracic Surgery | Portland | OR | premium |
| 1891750329 | Samoil, Daniela · member of 3 groups | MD | Cardiology | Tualatin | OR | premium |
| 1275171316 | Sanderson, Thomas · member of 2 groups | AGACNP | Nurse Practitioner | Portland | OR | premium |
| 1487748836 | Schoenkerman, Aaron · member of 8 groups | MD | Cardiology | Portland | OR | premium |
| 1578568499 | Schroeder, David · member of 8 groups | M.D. | Cardiology | Portland | OR | premium |
| 1154379576 | Shaw, Lian · member of 8 groups | MD | Cardiology | Newberg | OR | premium |
| 1104928522 | Shen, Jian · member of 7 groups | M.D. | Pathology | Portland | OR | premium |
| 1194933770 | Shipley, Jared · member of 2 groups | MD | Pulmonary Disease | Portland | OR | premium |
| 1568999183 | Silvas, Michael · member of 2 groups | MD | Internal Medicine | Portland | OR | premium |
| 1225475890 | Snir, Olivia · member of 5 groups | M.D. | Pathology | Portland | OR | premium |
| 1609818939 | Sohn, Richard · member of 2 groups | MD | Interventional Cardiology | Portland | OR | premium |
| 1679077648 | Story, Christopher · member of 2 groups | MD | Emergency Medicine | Portland | OR | premium |
| 1457743296 | Sun, Jeffrey · member of 2 groups | DO | Family Practice | Portland | OR | premium |
| 1306036108 | Tam, Lori · member of 8 groups | Cardiology | Portland | OR | premium | |
| 1265895940 | Tan, Michael Charles · member of 3 groups | MD | Cardiology | Portland | OR | premium |
| 1518233055 | Terry, Kristopher · member of 5 groups | D.O. | Hospitalist | Tacoma | WA | premium |
| 1225104599 | Thiesing, John · member of 5 groups | M.D. | Interventional Radiology | Portland | OR | premium |
| 1336501584 | Thompson, John · member of 2 groups | Emergency Medicine | Portland | OR | premium | |
| 1023212784 | Topp, Zheng · member of 2 groups | M.D. | Medical Oncology | Portland | OR | premium |
| 1255656658 | Turner, Kevin · member of 5 groups | M.D./PH.D. | Pathology | Portland | OR | premium |
| 1720391493 | Vakil, Shruti · member of 2 groups | M.D | Internal Medicine | Saint Paul | MN | premium |
| 1164764288 | Vincent, Logan · member of 2 groups | M.D. | Cardiology | Portland | OR | premium |
| 1669658282 | Vincent, Frederick · member of 2 groups | MD | Neurosurgery | Portland | OR | premium |
| 1689068033 | Walker, Kyle · member of 2 groups | MD | Internal Medicine | Seaside | OR | premium |
| 1922047935 | Walsh, Craig · member of 8 groups | MD MPH | Cardiology | Portland | OR | premium |
| 1730300641 | Wang, Su · member of 5 groups | MD | Pathology | Portland | OR | premium |
| 1861104226 | Wesley, Pimsani · member of 2 groups | FNP | Nurse Practitioner | Portland | OR | premium |
| 1336583103 | West, Diane · member of 2 groups | MD | Emergency Medicine | Portland | OR | premium |
| 1396061834 | Westerdahl, Daniel · member of 3 groups | M.D. | Cardiology | Portland | OR | premium |
| 1376004077 | Wiggins, Alexandra · member of 2 groups | MD | Internal Medicine | Portland | OR | premium |
| 1912014317 | Williams, Patrick · member of 2 groups | MD | Family Practice | Portland | OR | premium |
| 1336185438 | Wilson, Geoffrey · member of 7 groups | MD | Cardiology | Portland | OR | premium |
| 1871539973 | Wilson, Michael · member of 2 groups | MD | Interventional Cardiology | Portland | OR | premium |
| 1649702903 | Wolfer, Hannah · member of 2 groups | Emergency Medicine | Portland | OR | premium | |
| 1255724159 | Woodruff, Caitlin · member of 2 groups | AGACNP-BC | Nurse Practitioner | Portland | OR | premium |
| 1265580054 | Woolf, Kevin · member of 6 groups | MD | Cardiology | Hillsboro | OR | premium |
| 1184921157 | Wright, Jeremiah · member of 2 groups | AGACNP-BC | Nurse Practitioner | Portland | OR | premium |
| 1538551445 | Wright, Esther · member of 2 groups | DO | Internal Medicine | Portland | OR | premium |
| 1164504171 | Wu, Yaping · member of 5 groups | MD | Pathology | Vancouver | WA | premium |
| 1487806790 | Xiao, Hong · member of 7 groups | MD, PHD | Pathology | Boston | MA | premium |
| 1689012015 | Yamamoto, Ted · member of 2 groups | MD | Internal Medicine | Lebanon | NH | premium |
| 1588632202 | Yao, Lisa · member of 7 groups | M.D | Cardiology | Portland | OR | premium |
| 1669791570 | Youker, Jeffrey · member of 2 groups | M.D. | Internal Medicine | Portland | OR | premium |
| 1598944928 | Zemsky, Alexi · member of 4 groups | MD | Clinical Cardiac Electrophysiology | Portland | OR | premium |
| 1861452658 | Zhang, Yibin · member of 5 groups | MD | Pathology | San Gabriel | CA | premium |
| 1578737342 | Zubko, Rachel · member of 5 groups | M.D. | Internal Medicine | Springfield | OR | premium |
Volumes are attributed to a group only for clinicians affiliated with exactly one group. Clinicians in several groups are listed ("member of N groups") but shown as "—" — their volume is not attributed to any single group. A "—" on a single-group clinician means CMS suppressed the figure (fewer than 11 beneficiaries), never zero. Beneficiary-episodes count CMS's per-setting beneficiary figures, not unique patients. Average Medicare payment is the amount Medicare actually paid per service, weighted by service volume across office and facility settings. Where the roster is a single clinician, that clinician's service counts match the group's attributed volume shown on the ranked results, so they are shown here; the per-provider split across a larger roster is a premium feature. See Methods & Sources.