REGENTS OF THE UNIVERSITY OF CALIFORNIA
PAC 5597663641 Physician groupWho's billing in this group, plus the paid volume analytics · CY2024
Clinician makeup · CY2024Billed 24 of the group's 60 codes this year, across 2 states (CY2024).
The full analytics for this group
PremiumThe billed-volume rank, trajectory, and economics behind this group — computed on the same disclosed Medicare Part B data.
- Per-code payment breakdown & avg $/service — dollars behind the volume
- Beneficiary-episode volume — reach, not just service counts
- Office vs. facility setting mix — place-of-service code split
- National billed-volume rank — percentile, cohort & year disclosed
- Size-peer billed-volume benchmark — vs. groups of similar size
- Top-3 clinician share — how volume distributes
- 5-year volume trend — direction across the window
- Business mix — largest codes by payment
Rank and benchmark figures are billed-volume positions among peers, not measures of care. All figures attributed (single-group clinicians) and disclosed Medicare Part B fee-for-service.
Notify me at launch → Or see a live example group page →Provider volumes, all codes · CY2024
| NPI | Provider | Credentials | Type | City | St | Services (all codes) locked column |
|---|---|---|---|---|---|---|
| 1700875911 | Tram, Kenneth | MD | Internal Medicine | Orange | CA | premium |
| 1225532310 | Blumberg, Charles | MD | Internal Medicine | Laguna Hills | CA | premium |
| 1558894907 | Azeizat, Thomas | MD | Family Practice | Tustin | CA | premium |
| 1043715410 | Chang, Stephen | MD | Family Practice | Tustin | CA | premium |
| 1528249430 | Ing, Arlene | D.O. | Family Practice | Tustin | CA | premium |
| 1235698036 | Velasco, Christina | DO | Internal Medicine | Orange | CA | premium |
| 1407910847 | Lin, Samuel | M.D. | Family Practice | Orange | CA | premium |
| 1710981303 | Engle, Roxann | DO | Family Practice | Yorba Linda | CA | premium |
| 1104454115 | Gabriel, Annasha | MD | Internal Medicine | Newport Beach | CA | premium |
| 1558546341 | Chan, Regan | D.O. | Family Practice | Orange | CA | premium |
| 1043221898 | Doomun, Robert | D.O. | Family Practice | Yorba Linda | CA | premium |
| 1821557885 | Lee, Jung | MD | Family Practice | Laguna Hills | CA | premium |
| 1538663158 | Dyo, Jeffrey | M.D. | Internal Medicine | Costa Mesa | CA | premium |
| 1093730061 | Jesse, David | M.D. | Family Practice | Brea | CA | premium |
| 1265061451 | Le, Shawna | MD | Internal Medicine | Costa Mesa | CA | premium |
| 1558366260 | Babel, Karen | MD | Family Practice | Tustin | CA | premium |
| 1265077556 | Phan, Kathy | Physician Assistant | Long Beach | CA | premium | |
| 1063809911 | Masukawa, Kristin | MD | Family Practice | Newport Beach | CA | premium |
| 1053321943 | Chapman, David | M.D. | Gastroenterology | Yorba Linda | CA | premium |
| 1447784590 | Kim, Maria | M.D. | Family Practice | Tustin | CA | premium |
| 1285161968 | Melcher, Shannon | MD | Family Practice | Tustin | CA | premium |
| 1831622588 | Truong, Laetitia | M.D. | Family Practice | Orange | CA | premium |
| 1760671549 | Kim, Susie | MD | Family Practice | Tustin | CA | premium |
| 1124679808 | Moridzadeh, Roxanna | PA-C | Physician Assistant | Costa Mesa | CA | premium |
| 1871955922 | Lam, Gregory | M.D. | Internal Medicine | Laguna Hills | CA | premium |
| 1932589108 | Lu, Gloria | MD | Family Practice | Newport Beach | CA | premium |
| 1891156105 | Amante, Rosalyn | D.O. | Family Practice | Coral Springs | FL | premium |
| 1043623499 | Etemad, Sara | M.D. | Family Practice | Laguna Hills | CA | premium |
| 1477139160 | Iqbal, Iqra | MD | Internal Medicine | Orange | CA | premium |
| 1295312023 | Hanna, Caroline | MD | Internal Medicine | Orange | CA | premium |
| 1336567551 | Huang, Emily | Internal Medicine | Santa Monica | CA | premium | |
| 1164655817 | Abadian Sharifabad, Manoochehr · member of 2 groups | M.D. | Critical Care (Intensivists) | Fountain Valley | CA | premium |
| 1043474513 | Amirkhanian Namagerdy, Sebo · member of 4 groups | M.D. | Critical Care (Intensivists) | Tujunga | CA | premium |
| 1396958237 | Ayoub, Robby · member of 2 groups | MD | Internal Medicine | Huntington Beach | CA | premium |
| 1841302122 | Batra, Raj · member of 3 groups | MD | Critical Care (Intensivists) | Los Angeles | CA | premium |
| 1598742710 | Berry, Jason · member of 3 groups | D.O. | Family Practice | Anaheim | CA | premium |
| 1457770752 | Bucur, Philip · member of 2 groups | M.D. | Urology | Fountain Valley | CA | premium |
| 1225210016 | Chamberlin, Janine · member of 2 groups | M.D. | Family Practice | Brea | CA | premium |
| 1811276181 | Cheng, Henry · member of 3 groups | M.D. | Family Practice | Anaheim | CA | premium |
| 1780610014 | Cho, Stanley · member of 2 groups | M.D. | Family Practice | Tustin | CA | premium |
| 1023101375 | Downs, David · member of 2 groups | MD | Orthopedic Surgery | Fullerton | CA | premium |
| 1780169128 | Huusfeldt, Angela · member of 3 groups | FNP-C | Nurse Practitioner | Anaheim | CA | premium |
| 1013073824 | Kapoor, Sudhir · member of 2 groups | MBBS, MD, ABIM. | Critical Care (Intensivists) | Louisiana | MO | premium |
| 1649523929 | Keliiholokai, Elizabeth · member of 2 groups | PA | Physician Assistant | Placentia | CA | premium |
| 1558523928 | Lee, David · member of 2 groups | MD | Physical Medicine and Rehabilitation | Yorba Linda | CA | premium |
| 1396972626 | Luong, Linda · member of 2 groups | P.A. | Physician Assistant | Fullerton | CA | premium |
| 1881085207 | Malekzadegan, Mohammad · member of 3 groups | Pulmonary Disease | Riverside | CA | premium | |
| 1649280546 | Martin, Keith · member of 2 groups | M.D. | Gastroenterology | Yorba Linda | CA | premium |
| 1952644197 | Mossinger, Lindsay · member of 2 groups | M.D. | Internal Medicine | Los Alamitos | CA | premium |
| 1639355472 | Oh, Bryan · member of 4 groups | M.D. | Neurosurgery | Newport Beach | CA | premium |
| 1457731747 | Rezaei, Mahsa · member of 3 groups | MD | Family Practice | Fountain Valley | CA | premium |
| 1073967394 | Rizkalla, Mirna · member of 2 groups | M.D. | Family Practice | Lakewood | CA | premium |
| 1780620013 | Rubinstein, Michael · member of 2 groups | M.D. | Orthopedic Surgery | Fullerton | CA | premium |
| 1316140049 | Shah, Ravi · member of 2 groups | D.O. | General Surgery | Yorba Linda | CA | premium |
| 1174694426 | Sharief, Imran · member of 4 groups | MD | Critical Care (Intensivists) | Tustin | CA | premium |
| 1447293956 | Sharma, Adarsh · member of 2 groups | M.D. | Pulmonary Disease | Newport Beach | CA | premium |
| 1962858142 | Sheahan, Shane · member of 2 groups | Internal Medicine | Orange | CA | premium | |
| 1528631470 | Stewart, Jacob · member of 2 groups | APRN | Nurse Practitioner | Killeen | TX | premium |
| 1457620528 | Tan, Jenny · member of 2 groups | MD | Family Practice | Anaheim | CA | premium |
| 1598327967 | Tan, Jessica · member of 2 groups | Physician Assistant | Fountain Valley | CA | premium | |
| 1235233222 | Towbin, Nancy · member of 2 groups | MD | Obstetrics & Gynecology | Yorba Linda | CA | premium |
| 1790170173 | Vo, Han · member of 2 groups | MD | Internal Medicine | Irvine | CA | premium |
| 1699138511 | Wu, Vanessa · member of 2 groups | M.D. | Family Practice | Costa Mesa | 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.