JOHN MUIR TRAUMA PHYSICIANS BILLING SERVICE
DIAGNOSTIC RADIOLOGY · WALNUT CREEK, CA · 114 providers · hospital-affiliated · (925) 939-3000
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) |
|---|---|---|---|---|---|---|
| 1295149540 | Esparza, Michael | MD | General Surgery | Walnut Creek | CA | premium |
| 1770756884 | Brandel, Joseph | M.D. | General Surgery | Antioch | CA | premium |
| 1811295819 | Eberlin, Seth | M.D. | Plastic and Reconstructive Surgery | Walnut Creek | CA | premium |
| 1275777641 | Aguilar, Jorge · member of 2 groups | M.D. | Anesthesiology | Walnut Creek | CA | premium |
| 1881035145 | Baek, Joseph · member of 2 groups | M.D. | Anesthesiology | Torrance | CA | premium |
| 1700020575 | Bhuria, Upasna · member of 3 groups | MD | Anesthesiology | Santa Cruz | CA | premium |
| 1962691576 | Birger, Alexei · member of 2 groups | M.D. | Anesthesiology | Portland | OR | premium |
| 1740740125 | Blackwell, Christopher · member of 4 groups | MD | Diagnostic Radiology | San Diego | CA | premium |
| 1093764565 | Bloomer, Courtnay · member of 6 groups | M.D. | Diagnostic Radiology | Walnut Creek | CA | premium |
| 1720079072 | Calafi, Leo · member of 2 groups | MD | Orthopedic Surgery | Walnut Creek | CA | premium |
| 1154367993 | Chan, Ronald · member of 3 groups | M.D. | Diagnostic Radiology | Walnut Creek | CA | premium |
| 1518253012 | Chang, Crystal · member of 4 groups | M.D. | Diagnostic Radiology | Novato | CA | premium |
| 1124261722 | Chen, Eric · member of 5 groups | M.D. | Interventional Radiology | Los Angeles | CA | premium |
| 1225458490 | Chen, Huijia · member of 3 groups | Diagnostic Radiology | Walnut Creek | CA | premium | |
| 1275704371 | Chen, Hui · member of 6 groups | M.D. | Diagnostic Radiology | Menlo Park | CA | premium |
| 1265750376 | Cheung, Melvina · member of 2 groups | M.D. | Anesthesiology | Emeryville | CA | premium |
| 1871911925 | Chism, Paul · member of 6 groups | Diagnostic Radiology | Little Rock | AR | premium | |
| 1467402859 | Coufal, Christopher · member of 2 groups | M.D. | Orthopedic Surgery | Walnut Creek | CA | premium |
| 1437261534 | Counelis, George · member of 2 groups | MD | Neurosurgery | Walnut Creek | CA | premium |
| 1063703072 | Crawley, Alexis · member of 7 groups | M.D. | Diagnostic Radiology | Mc Lean | VA | premium |
| 1689610941 | Cuenco, Jospeh · member of 2 groups | MD | Anesthesiology | Walnut Creek | CA | premium |
| 1467554337 | Deboisblanc, Michael · member of 2 groups | MD | General Surgery | Walnut Creek | CA | premium |
| 1619056561 | Diaz Flores, Rafael · member of 2 groups | M.D. | General Surgery | Walnut Creek | CA | premium |
| 1962862052 | Dimla, Romerson · member of 2 groups | M.D. | Anesthesiology | Hacienda Heights | CA | premium |
| 1689087892 | Ejaz, Ehsan · member of 3 groups | PA | Physician Assistant | Walnut Creek | CA | premium |
| 1821450024 | Fakhri, Mohammad · member of 4 groups | M.D. | Diagnostic Radiology | San Francisco | CA | premium |
| 1366472912 | Finch, Ira · member of 2 groups | M.D. | Diagnostic Radiology | Walnut Creek | CA | premium |
| 1568581429 | Fulkerson, Eric · member of 2 groups | MD | Orthopedic Surgery | Walnut Creek | CA | premium |
| 1548459340 | Gaffney, Shannon · member of 4 groups | DO | Diagnostic Radiology | Stanford | CA | premium |
| 1093757403 | Gandhi, Sunil · member of 3 groups | M.D. | Diagnostic Radiology | Walnut Creek | CA | premium |
| 1588748131 | Gerrard, Michelle · member of 2 groups | M.D. | Anesthesiology | Stockton | CA | premium |
| 1356555312 | Giudice, Matthew · member of 5 groups | MD | Anesthesiology | San Francisco | CA | premium |
| 1669779179 | Gonzales, Patrick · member of 3 groups | M.D. | Diagnostic Radiology | Walnut Creek | CA | premium |
| 1730375791 | Green, Ryan · member of 2 groups | M.D., PH.D. | Anesthesiology | Walnut Creek | CA | premium |
| 1952740938 | Ha, Daon · member of 5 groups | MD | Diagnostic Radiology | Nashua | NH | premium |
| 1922038314 | Hoddick, William · member of 2 groups | M.D. | Diagnostic Radiology | Walnut Creek | CA | premium |
| 1467485334 | Howard, David · member of 6 groups | M.D. | Diagnostic Radiology | Walnut Creek | CA | premium |
| 1336692615 | Hsu, Kevin · member of 3 groups | MD | Diagnostic Radiology | Stanford | CA | premium |
| 1760917397 | Huang, Jeffrey · member of 4 groups | MD | Diagnostic Radiology | San Francisco | CA | premium |
| 1386848919 | Javadi, Mehrbod · member of 2 groups | MD | Diagnostic Radiology | Baltimore | MD | premium |
| 1003801358 | Khashayar, Ramin · member of 3 groups | MD | Pulmonary Disease | Walnut Creek | CA | premium |
| 1295880706 | Kim, Daniel · member of 2 groups | M.D. | Diagnostic Radiology | Walnut Creek | CA | premium |
| 1760877146 | Kung, Evan · member of 2 groups | Anesthesiology | Visalia | CA | premium | |
| 1013336072 | Kwon, Carolyn · member of 4 groups | Diagnostic Radiology | Baltimore | MD | premium | |
| 1336307842 | Lai, Amy · member of 2 groups | MD | Diagnostic Radiology | New York | NY | premium |
| 1548202740 | Lai, Annie · member of 6 groups | MD | Diagnostic Radiology | Walnut Creek | CA | premium |
| 1083826879 | Lee, Christopher · member of 4 groups | MD | Diagnostic Radiology | Walnut Creek | CA | premium |
| 1154697340 | Lee, Wilson · member of 3 groups | MD | Anesthesiology | Concord | CA | premium |
| 1740529593 | Lee, Wayne · member of 2 groups | M.D. | Anesthesiology | Union City | CA | premium |
| 1730142571 | Liu, George · member of 3 groups | M.D. | Anesthesiology | Walnut Creek | CA | premium |
| 1073718722 | Maa, Ming-Tyh · member of 2 groups | M.D. | Pulmonary Disease | Walnut Creek | CA | premium |
| 1376612275 | Martin, Sean · member of 2 groups | M.D. | General Surgery | Walnut Creek | CA | premium |
| 1093195380 | Mccutcheon, Brandon · member of 3 groups | MD | Neurosurgery | Walnut Creek | CA | premium |
| 1891870770 | Mcguinness, Brian · member of 2 groups | M.D. | Colorectal Surgery (Proctology) | Walnut Creek | CA | premium |
| 1063456713 | Mcswain, Hugh · member of 7 groups | MD | Diagnostic Radiology | San Francisco | CA | premium |
| 1053355396 | Meezan, Joshua · member of 2 groups | MD | Anesthesiology | Walnut Creek | CA | premium |
| 1194951723 | Merkow, Maxwell · member of 3 groups | MD | Neurosurgery | Walnut Creek | CA | premium |
| 1023125259 | Michlitsch, Michael · member of 2 groups | M.D. | Orthopedic Surgery | Walnut Creek | CA | premium |
| 1831456896 | Molnar, Esther · member of 2 groups | MD | Infectious Disease | Walnut Creek | CA | premium |
| 1285683169 | Moorthy, Murali · member of 2 groups | M.D. | Orthopedic Surgery | Walnut Creek | CA | premium |
| 1427006667 | Morgan, Joseph · member of 8 groups | MD | Diagnostic Radiology | Cherry Hill | NJ | premium |
| 1447539614 | Mutch, Christopher · member of 5 groups | MD | Diagnostic Radiology | Walnut Creek | CA | premium |
| 1881937506 | Nguyen, Richard · member of 2 groups | D.O. | Anesthesiology | Springfield | MA | premium |
| 1013334143 | Okoronkwo, Tobechi · member of 2 groups | M.D. | Anesthesiology | Oakland | CA | premium |
| 1720279599 | Panchal, Vishal · member of 4 groups | M.D. | Diagnostic Radiology | Walnut Creek | CA | premium |
| 1376587352 | Patel, Saurabh · member of 5 groups | M.D. | Diagnostic Radiology | Walnut Creek | CA | premium |
| 1982085957 | Pattanayak, Puskar · member of 4 groups | MBBS | Diagnostic Radiology | Baltimore | MD | premium |
| 1134168651 | Patton, Wendy · member of 2 groups | MD | Diagnostic Radiology | Oakland | CA | premium |
| 1093169237 | Pearson, Darion · member of 6 groups | M.D. | Anesthesiology | San Jose | CA | premium |
| 1396780425 | Posin, Jonathan · member of 4 groups | M.D. | Diagnostic Radiology | Walnut Creek | CA | premium |
| 1295840924 | Raman, Siva · member of 3 groups | Diagnostic Radiology | Walnut Creek | CA | premium | |
| 1558705277 | Rathnayake, Samira · member of 6 groups | M.D. | Diagnostic Radiology | New Haven | CT | premium |
| 1235380437 | Ricks, Kynan · member of 4 groups | MD | Anesthesiology | San Diego | CA | premium |
| 1700027778 | Riskin, Loren · member of 2 groups | MD | Anesthesiology | Stanford | CA | premium |
| 1417111501 | Rossow, David · member of 6 groups | MD | Diagnostic Radiology | Clinton Township | MI | premium |
| 1760638118 | Ryan, Patrick · member of 6 groups | MD | Diagnostic Radiology | Walnut Creek | CA | premium |
| 1114975562 | Sharma, Konark · member of 2 groups | M.D. | Infectious Disease | Walnut Creek | CA | premium |
| 1588981518 | Shukla, Anshu · member of 7 groups | M.D., M.S. | Diagnostic Radiology | Cincinnati | OH | premium |
| 1003019654 | Sirc, Evan · member of 3 groups | MD | Nuclear Medicine | Santa Cruz | CA | premium |
| 1508881632 | Smith, Alice · member of 5 groups | MD | Diagnostic Radiology | Honolulu | HI | premium |
| 1780610345 | So, Kirk · member of 4 groups | M.D. | Diagnostic Radiology | Walnut Creek | CA | premium |
| 1518153824 | Spataru, Oana · member of 4 groups | M.D. | Neurology | Walnut Creek | CA | premium |
| 1346628740 | Struve, Isabelle · member of 2 groups | General Surgery | Walnut Creek | CA | premium | |
| 1295230993 | Sukumar, Rohit · member of 7 groups | Diagnostic Radiology | Raleigh | NC | premium | |
| 1649414681 | Takahashi, Courtney · member of 3 groups | M.D. | Neurology | Walnut Creek | CA | premium |
| 1417156811 | Tan, Jessica · member of 5 groups | M.D | Diagnostic Radiology | San Francisco | CA | premium |
| 1992062319 | Taylor-Cho, Michael · member of 4 groups | M.D., M.P.H. | Diagnostic Radiology | Honolulu | HI | premium |
| 1124269675 | Tran, Hai · member of 2 groups | M.D., FASA | Anesthesiology | Walnut Creek | CA | premium |
| 1326059551 | Tran, Matthew · member of 4 groups | M.D. | Diagnostic Radiology | San Jose | CA | premium |
| 1962943563 | Tso, David · member of 5 groups | MD | Diagnostic Radiology | Boston | MA | premium |
| 1144262452 | Tu, Mark · member of 4 groups | M.D. | Diagnostic Radiology | Walnut Creek | CA | premium |
| 1124262860 | Turakhia, Aalok · member of 3 groups | MD | Diagnostic Radiology | Atlanta | GA | premium |
| 1982792818 | Viswanathan, Vijay · member of 7 groups | M.D. | Diagnostic Radiology | Dover | DE | premium |
| 1467977579 | Voss, Benjamin · member of 6 groups | MD | Diagnostic Radiology | San Francisco | CA | premium |
| 1477904043 | Vu, Nicholas · member of 6 groups | M.D. | Diagnostic Radiology | New Haven | CT | premium |
| 1669850871 | Walia, Sandeep · member of 3 groups | M.D | Neurology | Washington | DC | premium |
| 1346268067 | Wasserman, Ronald · member of 2 groups | M.D. | Infectious Disease | Walnut Creek | CA | premium |
| 1215498720 | Win, Susan · member of 4 groups | MD | Diagnostic Radiology | Los Angeles | CA | premium |
| 1942590161 | Wong, Stephanie · member of 2 groups | M.D. | Anesthesiology | Walnut Creek | CA | premium |
| 1407988272 | Woo, David · member of 4 groups | M.D. | Diagnostic Radiology | Walnut Creek | CA | premium |
| 1760415855 | Yazbeck, Moussa · member of 3 groups | M.D. | Critical Care (Intensivists) | Walnut Creek | CA | premium |
| 1598176604 | Yim, Benjamin · member of 3 groups | M.D. | Neurosurgery | Walnut Creek | CA | premium |
| 1265876478 | Youm, Jiwon · member of 3 groups | M.D. | Diagnostic Radiology | Walnut Creek | CA | premium |
| 1487682910 | Yuan, San · member of 2 groups | MD | Anesthesiology | Walnut Creek | CA | premium |
| 1417418856 | Zhang, Ray · member of 4 groups | PHD | Diagnostic Radiology | Chicago | IL | premium |
| 1366628935 | Zink, John · member of 4 groups | MD | General Surgery | Walnut Creek | 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.