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SANTA MARIA GASTROENTEROLOGY MEDICAL GROUP INC.

PAC 6709070964 Physician group
CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) · SANTA MARIA, CA · hospital-affiliated
Specialty CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) — most common member specialty (multi-specialty groups carry one label; see Methods)
Footprint Registered in SANTA MARIA, CA · bills Medicare in 3 states (CA, CO, NM)
Scale 23 providers on the CMS registry roster · 81 codes billed (five-year data window) · 20,498 services (all billed codes, CY2024)
Medicare paid $2.1M · across all billed codes, CY2024, attributed & disclosed
Affiliation Hospital-affiliated — at least one member holds a hospital affiliation in the CMS registry
Contact (805) 922-6581 — 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 12Advanced-practice 10Other clinicians 0= 22 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 22 are the clinicians who billed in CY2024 — a subset of the all-time registry roster shown on the group's identity card.

Billed 45 of the group's 81 codes this year, across 3 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
1609890748 Vachhani, Atul MD Gastroenterology Santa MariaCA premium
1619014776 Nastaskin, Igor MD Gastroenterology Santa MariaCA premium
1316120157 Walia, Sukhpreet M.D. Gastroenterology OxnardCA premium
1194936625 Evans, Robert MD Gastroenterology Santa MariaCA premium
1093035917 Shah, Keval D.O. Gastroenterology OxnardCA premium
1306803572 Benipal, Paramjit MD Gastroenterology Santa MariaCA premium
1508894486 Hsia, Thomas MD Gastroenterology Santa MariaCA premium
1063414290 Kamps, Barbara CRNA Certified Registered Nurse Anesthetist (CRNA) FarmingtonNM premium
1306810221 Sundet, James CRNA Certified Registered Nurse Anesthetist (CRNA) MarysvilleCA premium
1942279203 Cairns, Ann CRNA Certified Registered Nurse Anesthetist (CRNA) Lake ArrowheadCA premium
1114388873 Swartz, Eric CRNA Certified Registered Nurse Anesthetist (CRNA) LouisvilleCO premium
1932136199 Kelley, Carla CRNA Certified Registered Nurse Anesthetist (CRNA) MarysvilleCA premium
1972040756 Castro, Romel · member of 2 groups Certified Registered Nurse Anesthetist (CRNA) StocktonCA premium
1104398478 Delkeskamp, Brooke · member of 2 groups APRN Certified Registered Nurse Anesthetist (CRNA) Santa MariaCA premium
1801823067 Ferguson, Kevin · member of 2 groups M.D. Pathology Santa MariaCA premium
1427375625 Freeman, Kali · member of 2 groups MD Pathology Santa MariaCA premium
1952637118 George, Vijay · member of 2 groups M.D. Pathology Santa MariaCA premium
1710105309 Lindsey, James · member of 2 groups M.D. Pathology Santa MariaCA premium
1447679014 Metzger, Rachel · member of 2 groups Certified Registered Nurse Anesthetist (CRNA) Santa MariaCA premium
1427067909 Renfro, Jill · member of 2 groups CRNA Certified Registered Nurse Anesthetist (CRNA) Santa MariaCA premium
1992321541 Stevenson, Andreina · member of 2 groups CRNA, DNAP Certified Registered Nurse Anesthetist (CRNA) Arroyo GrandeCA premium
1801356126 Viramontes, Omar · member of 2 groups MD Internal Medicine Santa MariaCA 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.