Stanley Pietrak, M.D.
NPI 1396794939 · Gastroenterology Physician · Williamsville, NY
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stanley Pietrak, M.D. is a Gastroenterology Physician provider in Williamsville, NY (NPI 1396794939).
Provider details
- NPI number
- 1396794939
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 143423 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
344 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 92 | $120 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 54 | $235 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 49 | $107 |
| Moderate Sedation Services Provided By the Same Physician Or Other Qualified Health Care Professional Performing a Gastrointestinal Endoscopic Service That Sedation Supports, Requiring the Presence of an Independent Trained Observer to Assist in the MonitoG0500 | 34 | $5 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 30 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 29 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 580 | 142 |
| Omeprazole | 551 | 131 |
| Famotidine | 518 | 113 |
| Esomeprazole Magnesium | 99 | 17 |
| Sucralfate | 72 | 19 |
| Linaclotidebrand: Linzess | 61 | 13 |
| Balsalazide Disodium | 54 | — |
| Lansoprazole |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$795 across 27 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-10
- Last updated
- 2013-12-11
Frequently asked questions
- What is Stanley Pietrak's NPI number?
- Stanley Pietrak's National Provider Identifier (NPI) is 1396794939, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stanley Pietrak's specialty?
- Stanley Pietrak is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Stanley Pietrak located?
- Stanley Pietrak's practice location on file with NPPES is 60 Maple Rd, Williamsville, NY 14221-2917.
- What is Stanley Pietrak's phone number?
- The practice phone number listed in the NPPES registry for Stanley Pietrak is (716) 626-5250.
- Does Stanley Pietrak accept Medicare?
- Stanley Pietrak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stanley Pietrak's NPI active?
- Yes — Stanley Pietrak's NPI (1396794939) is active in the NPPES registry as of the last update on 2013-12-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.