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SOUTHERN ARIZONA ANESTHESIA SERVICES PC

PAC 1850382565 Physician group
ANESTHESIOLOGY · TUCSON, AZ · hospital-affiliated
Specialty ANESTHESIOLOGY — most common member specialty (multi-specialty groups carry one label; see Methods)
Footprint Registered in TUCSON, AZ · bills Medicare in 5 states (AZ, CA, ME, MI, WA)
Scale 47 providers on the CMS registry roster · 31 codes billed (five-year data window) · 3,207 services (all billed codes, CY2024)
Medicare paid $321K · across all billed codes, CY2024, attributed & disclosed
Affiliation Hospital-affiliated — at least one member holds a hospital affiliation in the CMS registry
Contact (520) 795-7650 — 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 30Advanced-practice 10Other clinicians 0= 40 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 40 are the clinicians who billed in CY2024 — a subset of the all-time registry roster shown on the group's identity card.

Billed 18 of the group's 31 codes this year, across 5 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
1134112196 Brower, Steven MD Anesthesiology TucsonAZ premium
1659357937 Hellbusch, Jeffrey MD Anesthesiology TucsonAZ premium
1003809872 Farmer, Rhesa MD Anesthesiology TucsonAZ premium
1003894916 Longenecker, David MD Anesthesiology TucsonAZ premium
1083608756 Oakeson, Wayne MD Anesthesiology TucsonAZ premium
1508165598 Lucas, David MD Anesthesiology TucsonAZ premium
1821223397 Mendoza Cuartas, Maria M.D Anesthesiology Ann ArborMI premium
1639161201 Foley, Donald MD Anesthesiology TucsonAZ premium
1205923729 Bazzell, Charles MD Anesthesiology TucsonAZ premium
1508811571 Kaczynski, Stephen D.O. Anesthesiology TucsonAZ premium
1740273440 Gomez-Avraham, Isaac MD Anesthesiology TucsonAZ premium
1659365310 Lorenz, David MD Anesthesiology TucsonAZ premium
1215390679 Rivest, Stephanie M.D. Anesthesiology TucsonAZ premium
1265826416 Birmingham, Erin M.D. Anesthesiology BellinghamWA premium
1619961497 Paras, Benjamin M.D. Anesthesiology TucsonAZ premium
1841289287 Sharma, Sanjay MD Anesthesiology TucsonAZ premium
1154594000 Dillon, Hannah M.D. Anesthesiology TucsonAZ premium
1063406007 Nichols, Bradley MD Anesthesiology TucsonAZ premium
1407911027 Rowe, Stephen M.D. Anesthesiology TucsonAZ premium
1891095030 Walston, Michael M.D. Anesthesiology TucsonAZ premium
1952746604 Toole, Ryan D.O Anesthesiology RedlandsCA premium
1851332548 Vaughn, Kimberly CRNA Certified Registered Nurse Anesthetist (CRNA) AugustaME premium
1386616860 Calonje, Lora CRNA Certified Registered Nurse Anesthetist (CRNA) TucsonAZ premium
1346793767 Bissell, Deanna · member of 3 groups CRNA Certified Registered Nurse Anesthetist (CRNA) PhiladelphiaPA premium
1154566651 Bonomolo, Joseph · member of 4 groups M.D. Anesthesiology TucsonAZ premium
1932446093 Buchholz, Tricia · member of 4 groups CRNA Certified Registered Nurse Anesthetist (CRNA) ParkerAZ premium
1063806214 Carrillo, Kelly · member of 3 groups CRNA Certified Registered Nurse Anesthetist (CRNA) TucsonAZ premium
1538125471 Chanvitayapongs, Songsiri · member of 4 groups MD Anesthesiology TucsonAZ premium
1215319736 Chinyadza, Tashinga · member of 2 groups M.D Anesthesiology TucsonAZ premium
1124011820 Funk, John · member of 2 groups MD Anesthesiology TucsonAZ premium
1407354038 Hasbrouck, Nathaniel · member of 2 groups CRNA Certified Registered Nurse Anesthetist (CRNA) PuebloCO premium
1891091898 Hunt, Tyler · member of 3 groups CRNA Certified Registered Nurse Anesthetist (CRNA) Fort MohaveAZ premium
1497117295 Kachan, Diana · member of 2 groups MD, PHD Anesthesiology TucsonAZ premium
1568450070 Kim, Steven · member of 3 groups M.D., PH.D. Anesthesiology TucsonAZ premium
1164527255 Marks, Elizabeth · member of 3 groups CRNA Certified Registered Nurse Anesthetist (CRNA) DuluthMN premium
1649742990 Novack, Marina · member of 3 groups CRNA Certified Registered Nurse Anesthetist (CRNA) TucsonAZ premium
1760942304 Rossi, Gustave · member of 3 groups MD Anesthesiology Las VegasNV premium
1366499956 Shandling, Antoinette · member of 2 groups CRNA Certified Registered Nurse Anesthetist (CRNA) AspenCO premium
1841256476 Smith, Joshua · member of 3 groups MD Anesthesiology TucsonAZ premium
1386638062 Solgonick, Rodney · member of 2 groups M.D. Anesthesiology TucsonAZ 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.