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STANLEY JAMES PIETRAK M.D.
NPI 1396794939
Internal Medicine - Gastroenterology in Williamsville, NY

Active since May 10, 2006PECOS EnrolledAccepts Medicare Assignment
60 MAPLE RD, WILLIAMSVILLE, NY 14221(716) 626-5250(716) 332-2218 Get Directions Write a Review

NPPES record last updated: December 11, 2013. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Stanley James Pietrak M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

STANLEY JAMES PIETRAK M.D. (NPI 1396794939) is an individual gastroenterology provider in Williamsville, New York, licensed in New York (143423) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS and is a graduate of Albany Medical College Of Union University (1979).

NPPES Registry Identity

NPI1396794939
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameSTANLEY JAMES PIETRAKCredential: M.D.
Location Address60 MAPLE RDWilliamsville, NY 14221-2917
Mailing Address60 Maple RdWilliamsville, NY 14221-2917 · (716) 626-5250 · Fax (716) 332-2218
Phone(716) 626-5250
Fax(716) 332-2218
Sole ProprietorNo
Medical School CMSAlbany Medical College Of Union UniversityGraduated 1979
Enumeration DateMay 10, 2006
Last NPPES UpdateDecember 11, 2013
✔ NPI 1396794939 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in NY · 143423
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
60 MAPLE RD, Williamsville, NY 14221
Open in Google Maps ↗

Other Identifiers 3

Medicare PINRB7457
Medicare UPINE27764NY
Medicaid00845969NY

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Stanley James Pietrak M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6709863244
PECOS Enrollment IDI20080212000478
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Stanley Pietrak reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Gastroenterology Associates, LLP
3.6 mi
Gastroenterology
60 MAPLE RD, STE 1
Williamsville, NY 14221
  • Reassigned Medicare billing, New York enrollment
  • 25 clinicians in this Medicare group
NPI 1740259647 (716) 626-5283

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 10

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
92 services72 patients
Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385
This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.
54 services54 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
49 services47 patients
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 monito G0500
Moderate sedation is a method where a physician uses medication to help you relax during a gastrointestinal endoscopy. An independent trained observer will be present to monitor your vital signs and ensure your safety throughout the procedure. It's a common and safe practice.
34 services34 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
30 services28 patients
Biopsy of large bowel using a flexible endoscope 45380
A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.
25 services25 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 14221 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$126.40 typical visit price
range $54.87 – $166.88
Typical copayment $31.60 (range $13.71 – $41.72)
Most-billed visit code 99204
Established Patient
$97.08 typical visit price
range $17.54 – $136.14
Typical copayment $24.27 (range $4.38 – $34.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ENDOSCOPY CENTER OF WESTERN NEW YORK LLC
Clinic/Center (Ambulatory Surgical)
60 MAPLE RD, SUITE 2
WILLIAMSVILLE, NY 14221
Erie County (716) 332-1000
MALLORY BISCHEL FNP
Nurse Practitioner (Family)
60 MAPLE RD
BUFFALO, NY 14221
Erie County (716) 626-5260
LAURA PANKIEWICZ PA-C
Physician Assistant
60 MAPLE RD, SUITE 1
WILLIAMSVILLE, NY 14221
Erie County (716) 626-5250
RICHARD DANA KAPLAN M.D.
Internal Medicine (Gastroenterology)
60 MAPLE RD, STE 1
WILLIAMSVILLE, NY 14221
Erie County (716) 626-5250
CARRIN MARIE CLIFFORD FNP-BC
Nurse Practitioner (Family)
60 MAPLE RD
WILLIAMSVILLE, NY 14221
Erie County (716) 626-5250
RAYMOND J TUOTI M.D.
Internal Medicine (Gastroenterology)
60 MAPLE RD, STE 1
WILLIAMSVILLE, NY 14221
Erie County (716) 626-5250
PETER D BLOOM M.D.
Internal Medicine (Gastroenterology)
60 MAPLE RD, STE 1
WILLIAMSVILLE, NY 14221
Erie County (716) 626-5250
JERALD GILLER M.D.
Internal Medicine (Gastroenterology)
60 MAPLE RD, STE 1
WILLIAMSVILLE, NY 14221
Erie County (716) 626-5250

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Stanley Pietrak's NPI number?

The NPI number for Stanley Pietrak is 1396794939. It was assigned to this individual provider in the NPPES registry on May 10, 2006.

Where is Stanley Pietrak located?

Stanley Pietrak practices at 60 Maple Rd, Williamsville, NY 14221. The listed phone number is (716) 626-5250.

What is Stanley Pietrak's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Stanley Pietrak enrolled in Medicare?

Yes. Stanley Pietrak is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Stanley Pietrak's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stanley Pietrak reassigns Medicare benefits to Gastroenterology Associates, LLP (Williamsville, NY). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Stanley Pietrak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Stanley Pietrak was last updated on December 11, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.