NEVVI Medicare utilization intelligence

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SIERRA EMERGENCY MEDICAL GROUP INC

PAC 2860542479 Physician group
EMERGENCY MEDICINE · SONORA, CA · hospital-affiliated
Specialty EMERGENCY MEDICINE — most common member specialty (multi-specialty groups carry one label; see Methods)
Footprint Registered in SONORA, CA · bills Medicare in 2 states (CA, IL)
Scale 23 providers on the CMS registry roster · 7 codes billed (five-year data window) · 1,220 services (all billed codes, CY2024)
Medicare paid $102K · across all billed codes, CY2024, attributed & disclosed
Affiliation Hospital-affiliated — at least one member holds a hospital affiliation in the CMS registry
Contact (209) 536-5000 — 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 15Advanced-practice 4Other clinicians 0= 19 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 19 are the clinicians who billed in CY2024 — a subset of the all-time registry roster shown on the group's identity card.

Billed 5 of the group's 7 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)
1013177500 Wang, Steve DO Emergency Medicine QuincyIL
1245556364 Lockwood, Michael MD Emergency Medicine ParadiseCA
1326478074 Andersen, Cody · member of 2 groups D.O. Emergency Medicine JohnstownPA
1255386256 Aristeiguieta, Cesar · member of 3 groups MD Emergency Medicine SacramentoCA
1619326188 Ballstaedt, Levi · member of 2 groups D.O Emergency Medicine KingmanAZ
1114292976 Buckowski, Amy · member of 2 groups MD Emergency Medicine Los AngelesCA
1770288532 Callahan, Kelsey · member of 3 groups Nurse Practitioner SonoraCA
1215170956 Dunn, Sarah · member of 2 groups M.D. Emergency Medicine ModestoCA
1497916498 Joye, Steven · member of 2 groups DO Emergency Medicine SonoraCA
1366747644 Lemler, Arica · member of 2 groups MD Emergency Medicine SacramentoCA
1962847459 Ogle, Erica · member of 2 groups D.O. Emergency Medicine SpringfieldMA
1265825541 Pingree, Alexander · member of 2 groups D.O. Emergency Medicine Nellis AfbNV
1710324496 Protacio, Joseph · member of 2 groups D.O. Emergency Medicine Madison HeightsMI
1205094141 Stuart, Stephanie · member of 2 groups M.D. Emergency Medicine SonoraCA
1730509134 Tupy, Daniel · member of 4 groups Emergency Medicine SonoraCA
1518428994 Wassermann, Travis · member of 2 groups MD Emergency Medicine SonoraCA
1548685175 Wicke, Wendy · member of 2 groups PA-C Physician Assistant SonoraCA
1831173111 Williamson, Matthew · member of 3 groups PA Physician Assistant TurlockCA
1952894883 Zuniga, Susan · member of 3 groups Nurse Practitioner SonoraCA

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.