NEVVI Medicare utilization intelligence

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UNIVERSITY AT BUFFALO NEUROSURGERY INC

PAC 0143124719 Provider group
PHYSICIAN ASSISTANT · AMHERST, NY · hospital-affiliated
Specialty PHYSICIAN ASSISTANT — most common member specialty (multi-specialty groups carry one label; see Methods)
Footprint Registered in AMHERST, NY · bills Medicare in 4 states (CT, MD, NY, WA)
Scale 71 providers on the CMS registry roster · 110 codes billed (five-year data window) · 18,370 services (all billed codes, CY2024)
Medicare paid $1.1M · across all billed codes, CY2024, attributed & disclosed
Affiliation Hospital-affiliated — at least one member holds a hospital affiliation in the CMS registry
Contact (716) 218-1000 — 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 28Advanced-practice 35Other clinicians 0= 63 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 63 are the clinicians who billed in CY2024 — a subset of the all-time registry roster shown on the group's identity card.

Billed 69 of the group's 110 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

Provider volumes, all codes · CY2024

NPIProviderCredentialsTypeCitySt Services (all codes) locked column
1023202355 Siddiqui, Jafar M.D. Physical Medicine and Rehabilitation WilliamsvilleNY premium
1568855070 Elahi, Irfan D.O. Physical Medicine and Rehabilitation WilliamsvilleNY premium
1003891896 Castiglia, Gregory MD Neurosurgery WilliamsvilleNY premium
1558325951 Siddiqui, Adnan MD, PHD Neurosurgery WilliamsvilleNY premium
1932304045 Beck, Jonathan D.C. Chiropractic WilliamsvilleNY premium
1770961427 Kapoor, Sunjay D.C. Chiropractic WilliamsvilleNY premium
1033676044 Koroschetz, Andrew Physician Assistant Orchard ParkNY premium
1740544030 Cuddahee, Kevin FNP Nurse Practitioner BuffaloNY premium
1215262878 Davies, Jason M.D., PH.D. Neurosurgery BuffaloNY premium
1750803458 Hull, Keith DC Chiropractic AmherstNY premium
1649943671 Szymanski, Lauren PA-C Physician Assistant RochesterNY premium
1841719572 Gajewski, Julia Nurse Practitioner WilliamsvilleNY premium
1811251218 Hennessy, Emily RPA-C Physician Assistant BuffaloNY premium
1396057287 Krause, Sarah PA-C Physician Assistant WilliamsvilleNY premium
1184683195 Levy, Elad MD Neurosurgery WilliamsvilleNY premium
1194239889 Poole, Michelle FNP Nurse Practitioner WilliamsvilleNY premium
1124097381 Gibbons, Kevin M.D. Neurosurgery BuffaloNY premium
1760645758 Farmer, David PA Physician Assistant WilliamsvilleNY premium
1639845613 Braciak, Sarah PA-C Physician Assistant WilliamsvilleNY premium
1598444721 Tierney, Emma Physician Assistant BuffaloNY premium
1033634233 Wade, Andrew DC Chiropractic VancouverWA premium
1336616614 Yeung, Angela Physician Assistant BuffaloNY premium
1063073468 Wincowski, Andrea PA Physician Assistant WilliamsvilleNY premium
1003847484 Stoffman, Michael M.D. Neurosurgery Niagara FallsNY premium
1952628315 Snyder, Kenneth M.D., PH.D Neurosurgery BuffaloNY premium
1679853584 Andres, Melanie PA-C Physician Assistant WilliamsvilleNY premium
1730710781 Smith, Andrew FNP Nurse Practitioner West SenecaNY premium
1598047904 Owczarzak, Cheryl PA-C Physician Assistant WilliamsvilleNY premium
1225423882 Lai, Pui Man Rosalind MD Neurosurgery BuffaloNY premium
1598172215 Case, Megan P.A. Physician Assistant AmherstNY premium
1205045424 Fahrbach, John M.D. Neurosurgery WilliamsvilleNY premium
1063466878 Fisher, Michele PA Physician Assistant BuffaloNY premium
1144899469 Battaglia, Elizabeth PA-C Physician Assistant West SenecaNY premium
1619230505 Meyers, Joshua M.D. Neurosurgery AmherstNY premium
1497954655 Campanie, Kristin RPA-C Physician Assistant WilliamsvilleNY premium
1700477957 Chaffey, Lauren PA-C Physician Assistant DepewNY premium
1578191334 Reesor, Stephanie PA Physician Assistant BuffaloNY premium
1942285739 Moreland, Douglas MD Neurosurgery WilliamsvilleNY premium
1346483039 Riley, Jonathan M.D. Neurosurgery Orchard ParkNY premium
1235492331 Sarzyniak, Emily RPA-C Physician Assistant WilliamsvilleNY premium
1578056024 Jancevski, Alicia Physician Assistant WilliamsvilleNY premium
1639552417 Laing, Nicole PA-C Physician Assistant BuffaloNY premium
1457986366 Santana, Sabrina PA-C Physician Assistant WilliamsvilleNY premium
1740266048 Pollina, John MD Neurosurgery WilliamsvilleNY premium
1902659519 Mcdonnell, Andrea AGNP Nurse Practitioner BuffaloNY premium
1952142366 Baskerville, David Physician Assistant WilliamsvilleNY premium
1669224473 Tirabassi, Anthony PA STUDENT Physician Assistant WilliamsvilleNY premium
1477226587 Berger, Assaf MD Neurosurgery New YorkNY premium
1801428842 Murphy, Tara FNP Nurse Practitioner WilliamsvilleNY premium
1235588047 Algattas, Hanna · member of 2 groups M.D. Neurosurgery PittsburghPA premium
1861178063 Allan, Bradley · member of 2 groups PA-C Physician Assistant AmherstNY premium
1386649598 Dhillon, Gurmeet · member of 6 groups M.D. Diagnostic Radiology CincinnatiOH premium
1316084726 Dunleavy, Jason · member of 2 groups MD Diagnostic Radiology WilliamsvilleNY premium
1669637484 Farmer, Amy · member of 2 groups PA-C Physician Assistant BuffaloNY premium
1306881339 Ferrero, Donna · member of 2 groups M.D. Physical Medicine and Rehabilitation RochesterNY premium
1073582243 Li, Veetai · member of 2 groups M.D. Neurosurgery BuffaloNY premium
1154324028 Macoretta, Karmell · member of 2 groups NP Nurse Practitioner WilliamsvilleNY premium
1730541806 Mcbride, Paul · member of 2 groups M.D. Neurosurgery WilliamsvilleNY premium
1487971818 Mullin, Jeffrey · member of 2 groups M.D. Neurosurgery WilliamsvilleNY premium
1710357660 Sprole, Caitlin · member of 2 groups PA-C Physician Assistant LewistonNY premium
1710961149 Tymchak, Gregory · member of 3 groups Diagnostic Radiology WilliamsvilleNY premium
1518086206 Wegrzyn, Susan · member of 2 groups ANP Nurse Practitioner WilliamsvilleNY premium
1427735828 Wendling, Courtney · member of 4 groups PA Physician Assistant AnchorageAK 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.