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GASTROENTEROLOGY ASSOCIATES, PA

PAC 1951215433 Provider group
GASTROENTEROLOGY · GREENVILLE, SC · hospital-affiliated
Specialty GASTROENTEROLOGY — most common member specialty (multi-specialty groups carry one label; see Methods)
Footprint Registered in GREENVILLE, SC · bills Medicare in 6 states (CO, GA, LA, NC, SC, TX)
Scale 58 providers on the CMS registry roster · 78 codes billed (five-year data window) · 36,211 services (all billed codes, CY2024)
Medicare paid $2.6M · across all billed codes, CY2024, attributed & disclosed
Affiliation Hospital-affiliated — at least one member holds a hospital affiliation in the CMS registry
Contact (864) 232-7338 — 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 19Advanced-practice 36Other clinicians 0= 55 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 55 are the clinicians who billed in CY2024 — a subset of the all-time registry roster shown on the group's identity card.

Billed 47 of the group's 78 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
1821268368 Jones, Preston M.D. Gastroenterology GreenvilleSC premium
1831171081 Mazanec, Paul M.D. Gastroenterology GreenvilleSC premium
1639439748 Saha, Ritu MD Gastroenterology GreenvilleSC premium
1437190428 Brackbill, Stephen MD Gastroenterology GreenvilleSC premium
1699118133 Barnes, Matthew MD Gastroenterology GreenvilleSC premium
1538344007 Gulley, David M.D. Gastroenterology GreenvilleSC premium
1043539471 Vallabh, Hiren M.D. Gastroenterology GreenvilleSC premium
1700319167 Horton, Anthony Internal Medicine GreenvilleSC premium
1871575175 Merchant, Ayub M.D. Gastroenterology GreenvilleSC premium
1215135199 Naas, Peter M.D. Gastroenterology GreenvilleSC premium
1073738696 Fyock, Christopher MD Gastroenterology GreenvilleSC premium
1790878213 Lebel, Joseph M.D. Gastroenterology GreenvilleSC premium
1578894176 Sunkavalli, Madhusudhan MD Gastroenterology GreenvilleSC premium
1700078276 Geist, Jared M.D. Gastroenterology GreenvilleSC premium
1689618753 Gaines, David MD Gastroenterology GreenvilleSC premium
1578775854 Palma, David MD Gastroenterology GreenvilleSC premium
1538252283 Yarborough, Claude M.D. Gastroenterology GreenvilleSC premium
1174055271 Vitorsky, Olga D.O. Internal Medicine GreenvilleSC premium
1508865734 Baker, Amy CRNA Certified Registered Nurse Anesthetist (CRNA) GreenvilleSC premium
1720577968 Stroud, Matthew Certified Registered Nurse Anesthetist (CRNA) GreenvilleSC premium
1568403251 Houmann, Rebecca CRNA Certified Registered Nurse Anesthetist (CRNA) HendersonvilleNC premium
1821794538 Calderon Ocana, Pedro CRNA Certified Registered Nurse Anesthetist (CRNA) GreenvilleSC premium
1255702007 Donnan, Jane Certified Registered Nurse Anesthetist (CRNA) GreenvilleSC premium
1427319847 Truman, Teresa APRN Nurse Practitioner GreenvilleSC premium
1083913305 Morgan, Tiffany NP Nurse Practitioner GreenvilleSC premium
1164456083 Raja, Sabrina P.A.-C Physician Assistant GreenvilleSC premium
1164424222 Luther, Tracy FNP Nurse Practitioner GreenvilleSC premium
1851833974 Garren, Jennifer FNP Nurse Practitioner GreenvilleSC premium
1093078917 Naylor, Allyson PA Physician Assistant GreenvilleSC premium
1437143856 Hammond, Julie APRN Nurse Practitioner GreenvilleSC premium
1740972827 Vadhar, Beejal FNP-C Nurse Practitioner GreenvilleSC premium
1194223628 Oss, Sarah CRNA Certified Registered Nurse Anesthetist (CRNA) LakewoodCO premium
1669565768 Hunt, Chandler PA C Physician Assistant GreenvilleSC premium
1053076232 Jones, Alexis APRN Nurse Practitioner GreenvilleSC premium
1760836175 Kovalic, Alexander MD Gastroenterology GreenvilleSC premium
1326141128 Land, Catherine CRNA Certified Registered Nurse Anesthetist (CRNA) GreenvilleSC premium
1083628937 Pellegrino, Maria CRNA Certified Registered Nurse Anesthetist (CRNA) GreenvilleSC premium
1356407852 Wilkinson, Craig CRNA Certified Registered Nurse Anesthetist (CRNA) West ColumbiaSC premium
1831179118 Pedigo, Tracy CRNA Certified Registered Nurse Anesthetist (CRNA) ClintonSC premium
1629010210 Carandang, Eric PA-C Physician Assistant GreenvilleSC premium
1952835100 Bookman, Julianna · member of 2 groups CRNA Certified Registered Nurse Anesthetist (CRNA) GreenvilleSC premium
1235596545 Chinault, Christopher · member of 3 groups CRNA Certified Registered Nurse Anesthetist (CRNA) GreenvilleSC premium
1154641470 Cooley, Lee · member of 3 groups CRNA Certified Registered Nurse Anesthetist (CRNA) GreenvilleSC premium
1306041546 Faust, Dana · member of 3 groups CRNA Certified Registered Nurse Anesthetist (CRNA) GreenvilleSC premium
1770017824 Harrington, Charles · member of 2 groups CRNA Certified Registered Nurse Anesthetist (CRNA) GreenvilleSC premium
1538128145 Irvin, Kathleen · member of 3 groups CRNA Certified Registered Nurse Anesthetist (CRNA) GreenvilleSC premium
1114989480 Jablonski, Daniel · member of 2 groups CRNA Certified Registered Nurse Anesthetist (CRNA) SpartanburgSC premium
1619317138 Klein, April · member of 3 groups CRNA Certified Registered Nurse Anesthetist (CRNA) GreenvilleSC premium
1942889126 Loeb, Cindy · member of 3 groups CRNP Nurse Practitioner GreenvilleSC premium
1619914249 Merkel, Christopher · member of 2 groups CRNA Certified Registered Nurse Anesthetist (CRNA) GreenvilleSC premium
1730120353 Patton, Jennifer · member of 2 groups CRNA Certified Registered Nurse Anesthetist (CRNA) SpartanburgSC premium
1386155265 Skariah, Ajith · member of 2 groups Certified Registered Nurse Anesthetist (CRNA) GreenvilleSC premium
1508105503 Smith, Laura · member of 3 groups CRNA Certified Registered Nurse Anesthetist (CRNA) GreenvilleSC premium
1063877629 Tharpe, Susanna · member of 3 groups Certified Registered Nurse Anesthetist (CRNA) GreenvilleSC premium
1942234075 Tombasco, Monica · member of 4 groups CRNA, ARNP Certified Registered Nurse Anesthetist (CRNA) AllentownPA 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.