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CALIFORNIA EMERGENCY ASSOCIATES A CALIFORNIA MEDICAL CORPORATION

PAC 9830426295 Provider group
EMERGENCY MEDICINE · SAN FRANCISCO, CA · hospital-affiliated
Specialty EMERGENCY MEDICINE — most common member specialty (multi-specialty groups carry one label; see Methods)
Footprint Registered in SAN FRANCISCO, CA · bills Medicare in 2 states (CA, FL)
Scale 15 providers on the CMS registry roster · 5 codes billed (five-year data window) · 777 services (all billed codes, CY2024)
Medicare paid $78K · across all billed codes, CY2024, attributed & disclosed
Affiliation Hospital-affiliated — at least one member holds a hospital affiliation in the CMS registry
Contact (415) 677-2300 — 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 13Advanced-practice 0Other clinicians 0= 13 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 13 are the clinicians who billed in CY2024 — a subset of the all-time registry roster shown on the group's identity card.

Billed 4 of the group's 5 codes this year, across 2 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
Data year: CY2024 CY2023 CY2022  CY2021  CY2020 

Provider volumes, all codes · CY2024

NPIProviderCredentialsTypeCitySt Services (all codes)
1245241991 Petra, Alexis MD Emergency Medicine Rancho MirageCA
1285075028 Blumberg, Rachel DO Emergency Medicine Miami BeachFL
1114960002 Chau, Peter MD Emergency Medicine VallejoCA
1700918349 Barth, Rebeka · member of 3 groups M.D. Emergency Medicine ConcordCA
1386853935 Colina, Deborah · member of 4 groups M. D. Emergency Medicine LarkspurCA
1922202399 Gorski, Robert · member of 2 groups M.D. Emergency Medicine BrooklynNY
1649520701 Hsieh, Dennis · member of 3 groups M.D. Emergency Medicine OaklandCA
1861781551 Leung, Albert · member of 2 groups M.D. Emergency Medicine San FranciscoCA
1396069506 Li, Jessica · member of 2 groups M.D. Emergency Medicine BerkeleyCA
1174734024 Siu, Jeffrey · member of 2 groups D.O. Emergency Medicine WarrenMI
1558493130 Vigil, Valerie · member of 2 groups M.D. Emergency Medicine GilroyCA
1194172544 Wu, Christopher · member of 2 groups M.D Emergency Medicine TucsonAZ
1710349485 Yang, Elaine · member of 2 groups Emergency Medicine OaklandCA

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.