NPPES file of Aug 9, 2026

Stanley James Pietrak, M.D.

Gastroenterology Physician · Williamsville, NY

Stanley James Pietrak, M.D. is a gastroenterology physician with a practice address in Williamsville, New York, and NPI 1396794939, issued on May 10, 2006. Check the license (New York 143423, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1396794939
Name
Stanley James Pietrak
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
143423 NY
Self-reported in NPPES; status is on the state search
Practice location
60 Maple RD, Williamsville, NY 14221
Phone
(716) 626-5250
Enumerated
May 10, 2006
Record last updated
Dec 11, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(716) 332-2218
Medicaid ID
00845969 NY
Medicare enrollment
Enrolled (PECOS I20080212000478); accepts Medicare assignment
Medical or professional school
Albany Medical College Of Union University, 1979
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest gastroenterology physician records → All 1,797 in New York → Look up another NPI →

Also registered at 60 Maple RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Christopher Bartolone, M.D.Gastroenterology Physician1548246788
  2. Peter Bloom, M.D.Gastroenterology Physician1316923253
  3. Carrin Clifford, FNP-BCFamily Nurse Practitioner1245945609
  4. David Fay, M.D.Gastroenterology Physician1942286844
  5. David Garson, M.D.Gastroenterology Physician1457337388
  6. Jerald Giller, M.D.Gastroenterology Physician1376529370

Verify Stanley James Pietrak in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 143423    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New York license search

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3.2 times the Medicare Part D claims of the average gastroenterology physician in 2024

2,572 Medicare Part D claims for 461 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.

  1. Stanley Pietrak2,572
  2. Specialty average811

Most prescribed

  1. Pantoprazole Sodium580 claims
  2. Omeprazole551 claims
  3. Famotidine518 claims
  4. Esomeprazole Magnesium99 claims
  5. Sucralfate72 claims
  6. Linzess61 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $795.45

27 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Stanley Pietrak$795.45
  2. Specialty average$5,015.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Gastroenterology Associates LLPWilliamsville, NY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Stanley James Pietrak among 1,797 gastroenterology physician records in New York

Stanley James Pietrak, M.D. is one of 1,797 gastroenterology physician records with a practice address in New York. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.

  • NPI issued2006 · 15% of these records are older, 44% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated1979 · median 1999 among the 1,378 with a school on file
  • Record last updated2013 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in New York

There are 1,797 gastroenterology physician records in New York.

All 1,797 in New York → Every provider in Williamsville → Gastroenterology Physician nationwide →

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Christopher Bartolone, M.D.Williamsville, NY 142211548246788
  2. Peter Bloom, M.D.Williamsville, NY 142211316923253
  3. Joseph Caruana, M.D.Williamsville, NY 142211134123417
  4. James Corasanti, MD, PHDWilliamsville, NY 142211750347068
  5. David Fay, M.D.Williamsville, NY 142211942286844
  6. David Garson, M.D.Williamsville, NY 142211457337388
  7. Jerald Giller, M.D.Williamsville, NY 142211376529370
  8. Richard Kaplan, M.D.Williamsville, NY 142211184600975

Common questions

What is Stanley James Pietrak, M.D.'s NPI number?

Stanley James Pietrak, M.D.'s National Provider Identifier (NPI) is 1396794939, issued on May 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Stanley James Pietrak, M.D. located?

The NPPES record lists a practice address at 60 Maple RD, Williamsville, NY, 14221. Phone: (716) 626-5250. Providers update this record themselves, so call before visiting.

How can I verify Stanley James Pietrak, M.D.'s license?

NPPES lists New York license number 143423, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Stanley James Pietrak, M.D. prescribe under Medicare Part D?

In 2024, Stanley James Pietrak, M.D. had 2,572 Medicare Part D claims for 461 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.