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EMERGENCY PHYSICIANS OF ORANGE COUNTY

PAC 9436692100 Physician group
EMERGENCY MEDICINE · NEWPORT BEACH, CA · hospital-affiliated
Specialty EMERGENCY MEDICINE — most common member specialty (multi-specialty groups carry one label; see Methods)
Footprint Registered in NEWPORT BEACH, CA · bills Medicare in 7 states
Scale 60 providers on the CMS registry roster · 25 codes billed (five-year data window) · 35,969 services (all billed codes, CY2024)
Medicare paid $3.8M · across all billed codes, CY2024, attributed & disclosed
Affiliation Hospital-affiliated — at least one member holds a hospital affiliation in the CMS registry
Contact (949) 764-4624 — CMS registry listing
CMS Doctors & Clinicians registry · Medicare Part B physician/supplier claims · figures are attributed (single-group clinicians) and disclosed fee-for-service — a subset, never complete totals · group series shown over the most recent 5 years (rosters archived from 2019)
Group analytics

Who's billing in this group, plus the paid volume analytics · CY2024

Clinician makeup · CY2024
Physicians 53Advanced-practice 6Other clinicians 0= 59 clinicians billed · CY2024
By clinician headcount, CY2024. 'Physician' follows Medicare's §1861(r) definition (MD/DO, podiatry, optometry, dental medicine, chiropractic); facility and supplier enrollments are not counted as clinicians. These 59 are the clinicians who billed in CY2024 — a subset of the all-time registry roster shown on the group's identity card.

Billed 13 of the group's 25 codes this year, across 6 states (CY2024).

The full analytics for this group

Premium

The billed-volume rank, trajectory, and economics behind this group — computed on the same disclosed Medicare Part B data.

What Medicare paid this group in CY2024 is on the group's identity card — free, on every tier. Premium breaks that figure down per code and per service, and puts the volume behind it in national and peer context.

  • 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.

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Medicare Part B FFS · CY2024 · as published by CMS

Provider volumes, all codes · CY2024

NPIProviderCredentialsTypeCitySt Services (all codes) locked column
1447258199 Houpt, Jonathan M.D. Emergency Medicine Newport BeachCA premium
1891758686 Green, William M.D. Emergency Medicine Newport BeachCA premium
1629323522 Hinds, D'artagnan M.D. Emergency Medicine BrooklynNY premium
1932162724 Grade, Brian M.D. Emergency Medicine Newport BeachCA premium
1144284001 Nakashioya, Howard M.D. Emergency Medicine Newport BeachCA premium
1700271632 Song, Peter M.D. Emergency Medicine Newport BeachCA premium
1528151271 Shen, James M.D. Emergency Medicine IrvineCA premium
1285619924 Laakaniemi, Brian M.D. Emergency Medicine IrvineCA premium
1417299231 Brenman, Stephanie M.D. Emergency Medicine Santa MonicaCA premium
1619273018 Marino, Heather D.O. Emergency Medicine Newport BeachCA premium
1629245790 O'connell, Tara MD Emergency Medicine IrvineCA premium
1316206394 Reynard, Tyler MD Emergency Medicine OrangeCA premium
1184078362 Aquino, Jannelle Emergency Medicine ColtonCA premium
1902913080 Robinson, Craig M.D. Emergency Medicine ChandlerAZ premium
1275701286 Dodge, Kelly M.D. Emergency Medicine New HavenCT premium
1568922185 Weiland, David Emergency Medicine ClevelandOH premium
1578526356 Fryer, Darrin M.D. Emergency Medicine Newport BeachCA premium
1376961151 Takemoto, Andrea M.D. Emergency Medicine Los AngelesCA premium
1184069650 Ross, Richard Emergency Medicine San JoseCA premium
1922062892 Meyers, David M.D. Emergency Medicine Newport BeachCA premium
1104245414 Tonthat, Vinh Emergency Medicine IrvineCA premium
1952795999 Cunningham, Andrew M.D. Emergency Medicine ChicagoIL premium
1386931244 Kang, Eugene M.D. Emergency Medicine Santa AnaCA premium
1275824799 Dang, Tam M.D. Emergency Medicine CoronaCA premium
1255837837 Bove, Nicholas MD Emergency Medicine IrvineCA premium
1316178361 Mervis, Eric M.D Emergency Medicine OrangeCA premium
1992167993 Kunstadt, Ethan M.D. Emergency Medicine IrvineCA premium
1982010013 Ludeman, Lori MD Emergency Medicine OrangeCA premium
1326577727 Lee, William Emergency Medicine Palm SpringsCA premium
1386818482 Pham, Larry M.D. Emergency Medicine Newport BeachCA premium
1336384429 Meher, John M.D. Emergency Medicine ValenciaCA premium
1538501705 Majestic, Cassondra M.D. Emergency Medicine OrangeCA premium
1578820155 Elrefaie, Ahmed M.D. Emergency Medicine IrvineCA premium
1619930492 Christy, David M.D. Emergency Medicine Newport BeachCA premium
1164485967 Juang, Pascal M.D. Emergency Medicine Newport BeachCA premium
1851754196 Perez, Michael MD Emergency Medicine Los AngelesCA premium
1447213251 Riel, John M.D. Emergency Medicine Newport BeachCA premium
1629031455 Park, William M.D. Emergency Medicine Newport BeachCA premium
1144648841 Endo, Brandon Emergency Medicine Los AngelesCA premium
1164485991 Callahan, Steven M.D. Family Practice Newport BeachCA premium
1720440738 Lee, Brett M.D. Emergency Medicine Los AngelesCA premium
1508977141 Gonella, Paula MD Emergency Medicine Marina Del ReyCA premium
1376938845 Lu, Jason Emergency Medicine Los AngelesCA premium
1568425312 Alcouloumre, Eric M.D. Emergency Medicine Newport BeachCA premium
1649560913 Reed, Karin M.D. Emergency Medicine IrvineCA premium
1932162773 Goldsworthy, Charles M.D. Emergency Medicine Newport BeachCA premium
1033561444 Nash, Michael NP Nurse Practitioner Newport BeachCA premium
1245519172 Lash, Patricia FNP Nurse Practitioner Costa MesaCA premium
1508323361 Felter, Brenda FNP-C Nurse Practitioner San BernardinoCA premium
1093176307 Huynh, Tuan PA-C Physician Assistant PomonaCA premium
1255828323 Brennan, Michelle · member of 2 groups MD Emergency Medicine Los AngelesCA premium
1407407059 Curran, Katherine · member of 2 groups NP Nurse Practitioner Long BeachCA premium
1710272547 Holloway, Jonathan · member of 2 groups Emergency Medicine AbileneTX premium
1083848949 Kido, Maya · member of 2 groups M.D. Emergency Medicine ValenciaCA premium
1972733574 Kim, Robert · member of 2 groups M.D. Emergency Medicine KetteringOH premium
1770004608 Ritter, Daniel · member of 2 groups MD Emergency Medicine Las VegasNV premium
1609339878 Romanu, Joshua · member of 2 groups MD Emergency Medicine IrvineCA premium
1336570712 Sesi, Jason · member of 3 groups PA-C Physician Assistant Las VegasNV premium
1275829665 Weber, Matthew · member of 2 groups M.D. Emergency Medicine OrangeCA 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.