PROVIDENCE HEALTH AND SERVICES - OREGON
INTERNAL MEDICINE · PORTLAND, OR · 184 providers · hospital-affiliated · (503) 215-1111
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) |
|---|---|---|---|---|---|---|
| 1487864583 | Korcheva, Veselina | M.D. | Pathology | Portland | OR | premium |
| 1407916513 | Hirsch, Anne | MD | Internal Medicine | Portland | OR | premium |
| 1659514958 | Chakrapani, Andrea | M.D. | Pathology | Tigard | OR | premium |
| 1255496709 | Pena, Porfirio | M.D. | Internal Medicine | Portland | OR | premium |
| 1497098941 | Brosnan, Evelyn | M.D. | Hematology-Oncology | Portland | OR | premium |
| 1336183755 | Richmond, Judith | MD | General Surgery | Portland | OR | premium |
| 1205191293 | Jeon, Hermina | MD | Internal Medicine | Portland | OR | premium |
| 1255312237 | Burchfield, Aaron | MD | Emergency Medicine | San Leandro | CA | premium |
| 1629501887 | Prather, Colin | M.D. | Emergency Medicine | Portland | OR | premium |
| 1467959312 | Caruso, Jordan | MD | Emergency Medicine | Portland | OR | premium |
| 1982803227 | Delporto, Paul | M.D. | Emergency Medicine | Portland | OR | premium |
| 1508352477 | Toyooka, Evan | DO | Emergency Medicine | Mount Clemens | MI | premium |
| 1043395080 | Sands, Vicki | M.D. | Emergency Medicine | Portland | OR | premium |
| 1104210921 | Hatfield, Elizabeth | DO | Emergency Medicine | Portland | OR | premium |
| 1952635344 | Loker, William | M.D. | Emergency Medicine | Portland | OR | premium |
| 1760010433 | Guan, Wen | MD | Emergency Medicine | Portland | OR | premium |
| 1609074020 | Ramirez, Dorian | M.D. | Emergency Medicine | Torrance | CA | premium |
| 1992231765 | Mcwade, Conor | M.D., M.P.H. | Emergency Medicine | Portland | OR | premium |
| 1912527557 | Poulo, Ryan | MD | Emergency Medicine | Portland | OR | premium |
| 1194926337 | Lynn, Jeremy | M.D. | Emergency Medicine | Portland | OR | premium |
| 1649355678 | Sanchez, Carlos | M.D. | Emergency Medicine | Portland | OR | premium |
| 1356769566 | Robinson, Haley | MD | Emergency Medicine | Minnetonka | MN | premium |
| 1528057155 | Bifulco, Carlo | MD | Pathology | New Haven | CT | premium |
| 1295116671 | Otter, Jenna | M.D. | Emergency Medicine | Portland | OR | premium |
| 1689094583 | Brown, Austen | M.D. | Emergency Medicine | Portland | OR | premium |
| 1053955047 | Adams, Bethany · member of 2 groups | DNP, AGACNP | Nurse Practitioner | Portland | OR | premium |
| 1023576659 | Agtarap, Rhezarie Mae · member of 2 groups | NP-C | Nurse Practitioner | Portland | OR | premium |
| 1962784298 | Ambady, Prakash · member of 2 groups | M.D. | Neurology | Portland | OR | premium |
| 1184606295 | Andersen, Steven · member of 2 groups | MD | Physical Medicine and Rehabilitation | Portland | OR | premium |
| 1962713776 | Arquero, Oliver · member of 2 groups | MD | Internal Medicine | Portland | OR | premium |
| 1124126636 | Avison, Kathrine · member of 2 groups | MD | Internal Medicine | Portland | OR | premium |
| 1871742478 | Babicky, Michele · member of 2 groups | M.D. | Surgical Oncology | Portland | OR | premium |
| 1184824351 | Balestra, Rick · member of 2 groups | M.D. | Pulmonary Disease | Portland | OR | premium |
| 1083119523 | Ballard, Lindsay · member of 2 groups | MD | Emergency Medicine | Harvey | LA | premium |
| 1467523951 | Bartley, Cynthia · member of 4 groups | M.D. | Hospitalist | Portland | OR | premium |
| 1205091576 | Batra, Nikhil · member of 2 groups | MD | Family Practice | Portland | OR | premium |
| 1487697488 | Beckerman, James · member of 7 groups | MD | Cardiology | Portland | OR | premium |
| 1760006118 | Bennetts, Laura · member of 2 groups | MD | Internal Medicine | Portland | OR | premium |
| 1164765111 | Bensch, Jason · member of 8 groups | M.D. | Cardiology | Portland | OR | premium |
| 1679086938 | Bereznai, Sarah · member of 2 groups | NP | Nurse Practitioner | Portland | OR | premium |
| 1073993069 | Biley, Ivan · member of 2 groups | MD | Internal Medicine | Portland | OR | premium |
| 1891885380 | Blackall, Douglas · member of 7 groups | MD | Pathology | Portland | OR | premium |
| 1265056618 | Block, Megan · member of 2 groups | MD | Internal Medicine | Portland | OR | premium |
| 1003200908 | Bochat, Katy · member of 2 groups | DO | Family Practice | Portland | OR | premium |
| 1073555306 | Bourret, Kristin · member of 2 groups | PAC | Physician Assistant | Portland | OR | premium |
| 1801898663 | Bowerfind, William · member of 3 groups | MD | Pulmonary Disease | Portland | OR | premium |
| 1700928728 | Bryant, Jane · member of 3 groups | ACNP | Nurse Practitioner | Portland | OR | premium |
| 1245451038 | Cai, Xiaohong · member of 7 groups | MD | Pathology | Portland | OR | premium |
| 1295762946 | Carolan, Amy · member of 2 groups | MD | Hospitalist | 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 |
| 1750607594 | Chan, Aaron · member of 2 groups | MD | Hospitalist | Oregon City | OR | premium |
| 1245643394 | Chen, Athena · member of 6 groups | MD | Pathology | Boston | MA | premium |
| 1750825931 | Clifford, Luke · member of 2 groups | DO | Internal Medicine | Portland | OR | premium |
| 1841460193 | Conlin, Alison · member of 2 groups | MD | Medical Oncology | Portland | OR | premium |
| 1114495017 | Cummings, Ryan · member of 3 groups | FNP | Nurse Practitioner | Portland | OR | premium |
| 1861494650 | Curti, Brendan · member of 2 groups | MD | Medical Oncology | Portland | OR | premium |
| 1912026600 | Darus, Christopher · member of 4 groups | MD | Gynecological Oncology | 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 |
| 1821607201 | Dharampal, Navjit · member of 3 groups | MD, MTM | Thoracic Surgery | Portland | OR | premium |
| 1790374536 | Doria, Kathryne · member of 2 groups | FNP | Nurse Practitioner | 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 |
| 1063767317 | Edwin, Natasha · member of 3 groups | M.D. | Hematology | Portland | OR | premium |
| 1437404571 | Erokhina, Katerina · member of 2 groups | D.O. | Medical Oncology | Vancouver | WA | premium |
| 1912298696 | Farr, Granthem · member of 3 groups | DO | Pulmonary Disease | Portland | OR | premium |
| 1720609324 | Feeney, Jakob · member of 2 groups | MD | Internal Medicine | Portland | OR | 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 |
| 1477643443 | Friend, Sean · member of 2 groups | M.D. | Internal Medicine | Portland | OR | premium |
| 1023455805 | Gelfer, Gita · member of 2 groups | DO | Hospitalist | Portland | 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 |
| 1225353824 | Gerry, Jon · member of 2 groups | M.D. | General Surgery | Portland | OR | premium |
| 1255441739 | Glavan, Bradford · member of 3 groups | MD | Pulmonary Disease | 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 |
| 1952556748 | Grossmann, Allie · member of 2 groups | M.D. PH.D. | Pathology | Salt Lake City | UT | premium |
| 1548624166 | Grovenburg, Samuel · member of 2 groups | M.D. | Internal Medicine | Portland | OR | premium |
| 1366604589 | Harrison, Colby · member of 2 groups | M.D. | Hospitalist | 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 |
| 1487090270 | Holton, Laura · member of 2 groups | M.D. | Internal Medicine | Portland | OR | premium |
| 1851822399 | Hootman, Elisabeth · member of 2 groups | AGACNP | Nurse Practitioner | Portland | OR | premium |
| 1346232857 | Huang, Xiaoyan · member of 8 groups | MD | Cardiology | Portland | OR | premium |
| 1598028854 | Huang, Allison · member of 2 groups | D.O. | Hospitalist | Portland | OR | premium |
| 1619990702 | Hussain, Sanaa · member of 5 groups | MD | Pathology | Albuquerque | NM | premium |
| 1205269800 | Hutchinson, Elizabeth · member of 2 groups | MD | Internal Medicine | Portland | OR | premium |
| 1073046330 | Johnson, Amanda · member of 2 groups | D.O. | Hospitalist | Portland | OR | premium |
| 1588059638 | Jooya, Neda · member of 2 groups | MD | Gynecological Oncology | Portland | OR | premium |
| 1942383120 | Kai, Mari · member of 2 groups | MD | Internal Medicine | Portland | OR | premium |
| 1720284623 | Kaimaktchiev, Vassil · member of 6 groups | M.D. | Pathology | Hood River | OR | premium |
| 1760776041 | Kiely, Maria · member of 4 groups | MD MPH | Colorectal Surgery (Proctology) | Portland | OR | premium |
| 1801243530 | Kim, Isaac · member of 2 groups | MD | Internal Medicine | Portland | OR | premium |
| 1043664121 | Korbacher, William · member of 2 groups | M.D. | Internal Medicine | Portland | OR | premium |
| 1326400573 | Krieg, Taylor · member of 2 groups | DO | Internal Medicine | Portland | OR | premium |
| 1124293626 | Lanciault, Christian · member of 7 groups | MD, PHD | Pathology | Pittsburgh | PA | premium |
| 1043673619 | Larson, Elise · member of 2 groups | MD | Internal Medicine | Portland | OR | premium |
| 1992123475 | Layoun, Michael · member of 8 groups | MD | Cardiology | Portland | OR | premium |
| 1881986404 | Levy, Andrew · member of 3 groups | M.D. | Pulmonary Disease | 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 |
| 1154586105 | Liao, Ian · member of 2 groups | MD | Internal Medicine | Portland | OR | premium |
| 1558924753 | Lien, Susan · member of 3 groups | NP | Nurse Practitioner | Portland | OR | premium |
| 1467444331 | Litt, Robert · member of 6 groups | M.D. | Cardiology | Portland | OR | premium |
| 1912987009 | Little, Brian · member of 2 groups | D.O. | Internal Medicine | Portland | OR | premium |
| 1487949582 | Makwana, Sohil · member of 2 groups | MD, MPH | Internal Medicine | Gresham | OR | premium |
| 1558342857 | Martel, Maritza · member of 5 groups | MD | Pathology | Portland | OR | premium |
| 1265845754 | Mckinley, Lindsey · member of 2 groups | DO | Internal Medicine | Portland | OR | premium |
| 1538278700 | Merry, Heather · member of 2 groups | MD | Thoracic Surgery | Portland | OR | premium |
| 1568157535 | Miller, Madelyn · member of 2 groups | NP | Nurse Practitioner | Portland | OR | premium |
| 1124361241 | Moon, Kristina · member of 5 groups | D.O. | Cardiology | Newberg | OR | premium |
| 1891727608 | Moore, Christie · member of 2 groups | D.O. | Medical Oncology | Portland | OR | premium |
| 1558943449 | Morehouse, Robell · member of 2 groups | MD | Family Practice | Portland | 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 |
| 1003905217 | Mullen, Robert · member of 2 groups | M.D. | Internal Medicine | Portland | OR | premium |
| 1407437007 | Natarajan, Ulaganathan · member of 2 groups | MD MPH | Hospitalist | Portland | OR | premium |
| 1154663987 | Nguyen, Vidang · member of 3 groups | M.D. | Advanced Heart Failure and Transplant Cardiology | Portland | OR | premium |
| 1518041045 | Nidiry, Mary Anne · member of 2 groups | MD | Internal Medicine | Portland | OR | premium |
| 1861781767 | Niemi, Cassandra · member of 2 groups | MD | Obstetrics & Gynecology | Portland | OR | premium |
| 1811131261 | Ogden, Maryann · member of 3 groups | M.D. | Hospitalist | Vancouver | WA | premium |
| 1679892756 | Olson, Lisa · member of 2 groups | M.D., M.P.H | Internal Medicine | Portland | OR | premium |
| 1821613837 | Paiva, Cody · member of 2 groups | DO | Internal Medicine | Portland | OR | premium |
| 1669097671 | Paluso, Anthony · member of 2 groups | MD | Internal Medicine | 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 |
| 1831534668 | Peters, Katherine · member of 2 groups | D.O. | Emergency Medicine | Garden City | MI | premium |
| 1740613314 | Phan, Steven · member of 2 groups | MD | Internal Medicine | Portland | OR | premium |
| 1366434656 | Phillips, Michael · member of 2 groups | MD | Gastroenterology | Portland | OR | premium |
| 1467710095 | Powell, Jesse · member of 2 groups | MD | Internal Medicine | Portland | OR | premium |
| 1750373056 | Rahimtoola, Aly · member of 8 groups | MD | Cardiology | Portland | OR | premium |
| 1831456979 | Ravi, Sriram · member of 7 groups | MD | Cardiology | Portland | OR | premium |
| 1689257677 | Read, Steven · member of 2 groups | PA-C | Physician Assistant | Portland | OR | 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 |
| 1447451794 | Rogosin, Shane · member of 3 groups | MD | Medical Oncology | Oregon City | OR | premium |
| 1194750331 | Rosenberg, Daniel · member of 2 groups | MD | Family Practice | Portland | OR | premium |
| 1811053911 | Ross, Alicia · member of 6 groups | M.D. | Advanced Heart Failure and Transplant Cardiology | Hood River | OR | premium |
| 1407826050 | Rotter, Patricia · member of 2 groups | M.D. | Emergency Medicine | Clackamas | OR | premium |
| 1659694735 | Ryan, William · member of 7 groups | M.D. | Pathology | 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 |
| 1932302890 | Sahni, Vikram · member of 2 groups | M.D. | Pulmonary Disease | Portland | OR | premium |
| 1073971693 | Saini, Pooja · member of 2 groups | AGACNP | Nurse Practitioner | Portland | OR | premium |
| 1275548794 | Sanborn, Rachel · member of 2 groups | MD | Medical Oncology | 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 |
| 1003002379 | Shrestha, Salona · member of 2 groups | MD | Internal Medicine | Portland | OR | premium |
| 1245223395 | Skokan, Michael · member of 2 groups | MD | Pulmonary Disease | Portland | OR | premium |
| 1225475890 | Snir, Olivia · member of 5 groups | M.D. | Pathology | Portland | OR | premium |
| 1043327109 | Song, Xiang-Hong · member of 4 groups | M.D. | Hospitalist | Portland | OR | premium |
| 1699233965 | Stevens, Zachary · member of 2 groups | PA-C | Physician Assistant | 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 |
| 1134239197 | Taylor, Matthew · member of 2 groups | MD | Medical Oncology | Portland | OR | premium |
| 1164593026 | Taylor, Cornelia · member of 2 groups | MD | Hospitalist | Portland | OR | premium |
| 1255656658 | Turner, Kevin · member of 5 groups | M.D./PH.D. | Pathology | Portland | OR | premium |
| 1326646118 | Vandinh, Travis · member of 2 groups | DNP , AGACNP | Nurse Practitioner | Portland | 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 |
| 1659714160 | Watters, Sean · member of 2 groups | M.D. | General Surgery | Portland | OR | premium |
| 1184010027 | Werner, Stephen · member of 2 groups | D.O. | Internal Medicine | Portland | OR | premium |
| 1962645028 | Wheeler, Brian · member of 2 groups | M.D. | Hospitalist | Portland | OR | premium |
| 1184967986 | Wilson, Erika · member of 2 groups | D.O. | Internal Medicine | Portland | OR | premium |
| 1336185438 | Wilson, Geoffrey · member of 7 groups | MD | Cardiology | Portland | OR | premium |
| 1265580054 | Woolf, Kevin · member of 6 groups | MD | Cardiology | Hillsboro | 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 |
| 1588632202 | Yao, Lisa · member of 7 groups | M.D | Cardiology | Portland | OR | premium |
| 1295224392 | Yates, John · member of 2 groups | MD | Family Practice | 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 |
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.