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GREENWICH ANESTHESIOLOGY ASSOCIATES PC

PAC 2163315425 Physician group
CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) · GREENWICH, CT · hospital-affiliated
Specialty CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) — most common member specialty (multi-specialty groups carry one label; see Methods)
Footprint Registered in GREENWICH, CT · bills Medicare in 4 states (CT, FL, MA, NY)
Scale 44 providers on the CMS registry roster · 59 codes billed (five-year data window) · 4,660 services (all billed codes, CY2024)
Medicare paid $372K · across all billed codes, CY2024, attributed & disclosed
Affiliation Hospital-affiliated — at least one member holds a hospital affiliation in the CMS registry
Contact (203) 661-5330 — 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 17Advanced-practice 23Other 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 41 of the group's 59 codes this year, across 4 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
1972985323 Rosenberg, Jared M.D. Anesthesiology GreenwichCT premium
1679734644 Bejar, Lucas M.D. Anesthesiology New Hyde ParkNY premium
1992734636 Levin, Michael M.D Anesthesiology GreenwichCT premium
1841654704 Perlstein, Matthew MD Anesthesiology New YorkNY premium
1477895381 Shapiro, David M.D. Anesthesiology New YorkNY premium
1497798235 Abrahams, Hanief M.D. Anesthesiology GreenwichCT premium
1568404895 Sygall, Paul M.D Anesthesiology GreenwichCT premium
1083974794 Gurny, Marc M.D. Anesthesiology New YorkNY premium
1184653826 Cochran, Terry M.D. Anesthesiology GreenwichCT premium
1013956952 Brea, Francisco MD Anesthesiology GreenwichCT premium
1326451717 Oh, Edwin M.D. Anesthesiology DorchesterMA premium
1588085476 Sheehy, Jessica CRNA Certified Registered Nurse Anesthetist (CRNA) GreenwichCT premium
1316973399 Tagliavia, Alfonso M.D Anesthesiology GreenwichCT premium
1629699681 Cardone, Kayla Certified Registered Nurse Anesthetist (CRNA) BostonMA premium
1962097238 Mcmanus, Julie Certified Registered Nurse Anesthetist (CRNA) New YorkNY premium
1639347115 Marousek, Jillian M.D. Anesthesiology New HavenCT premium
1154577229 Denepitiya-Balicki, Tiffany Anesthesiology New HavenCT premium
1558317040 Chrostowski, Mark M.D. Anesthesiology BostonMA premium
1801046917 Ewell, Ricky CRNA Certified Registered Nurse Anesthetist (CRNA) New HavenCT premium
1891020244 Clarke, Adelina CRNA Certified Registered Nurse Anesthetist (CRNA) GreenwichCT premium
1528652385 Ward, Caroline Certified Registered Nurse Anesthetist (CRNA) GreenwichCT premium
1750605762 Thal, Meeta CRNA Certified Registered Nurse Anesthetist (CRNA) New YorkNY premium
1699106658 Emeagwali, Sonya CRNA Certified Registered Nurse Anesthetist (CRNA) BrooklynNY premium
1528215530 Umanzor-Velasquez, Elvis M.D. Anesthesiology MiamiFL premium
1588076210 Twu, Cynthia M.D. Anesthesiology New YorkNY premium
1144502311 Halleran, Kerry CRNA Certified Registered Nurse Anesthetist (CRNA) New YorkNY premium
1588635841 Ober-Adams, Colleen CRNA Certified Registered Nurse Anesthetist (CRNA) New YorkNY premium
1023499142 Kane, Molly RN Certified Registered Nurse Anesthetist (CRNA) New YorkNY premium
1982445987 Feinstein, Victoria CRNA Certified Registered Nurse Anesthetist (CRNA) GreenwichCT premium
1043645161 Porco, Jaclyn Certified Registered Nurse Anesthetist (CRNA) GreenwichCT premium
1396389474 Carlino-Bradley, Lauren Certified Registered Nurse Anesthetist (CRNA) GreenwichCT premium
1013944180 Perley-Kwauk, Rosemary CRNA Certified Registered Nurse Anesthetist (CRNA) GreenwichCT premium
1710916457 Meyer, Janice CRNA Certified Registered Nurse Anesthetist (CRNA) GreenwichCT premium
1861643850 Johnson, Keisha · member of 2 groups CRNA Certified Registered Nurse Anesthetist (CRNA) BridgeportCT premium
1558682237 Keizerweerd, Michelle · member of 3 groups CRNA Certified Registered Nurse Anesthetist (CRNA) StratfordCT premium
1457861569 Lopez, Magdalena · member of 2 groups CRNA Certified Registered Nurse Anesthetist (CRNA) New YorkNY premium
1730565722 Morgan, Angela · member of 3 groups RN, CRNA Certified Registered Nurse Anesthetist (CRNA) ValhallaNY premium
1003819871 Perry, Ruth · member of 2 groups CRNA Certified Registered Nurse Anesthetist (CRNA) NorwalkCT premium
1104897461 Smith, Kristine · member of 2 groups CRNA Certified Registered Nurse Anesthetist (CRNA) New YorkNY premium
1811217292 Yoffe, Josh · member of 3 groups CRNA Certified Registered Nurse Anesthetist (CRNA) StratfordCT 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.