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Dr. Stanley James Pietrak, MD
NPI1396794939PAC ID6709863244
- Medicare services, 2024
- 344
- Medicare patients, 2024
- 205
- Part D claims, 2024
- 2,572
- Publications
- 1
- Industry payments
- $5,722
- Practice address
- 60 Maple Road, Suite #2, Williamsville, NY 14221
- Practice phone
- Call (716) 322-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Endoscopy Center of Western New York
Surgery Center - Medicare-Certified · Williamsville, New York
Find Dr. Pietrak's professional email, personal email and mobile number
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Dr. Stanley James Pietrak is a gastroenterologist in Buffalo, New York
Dr. Pietrak practices at Endoscopy Center of Western New York in Williamsville, New York.
Dr. Pietrak's NPI, 1396794939, was assigned on May 10, 2006. Dr. Pietrak graduated from Albany Medical College in 1979. Dr. Pietrak holds New York license 143423.
NPI and contact details
- NPI
- 1396794939NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6709863244
- NPI enumeration date
- May 10, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (716) 322-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 73
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stanley James Pietrak practices at Endoscopy Center of Western New York in Williamsville, New York
Dr. Pietrak's primary practice is Endoscopy Center of Western New York, at 60 Maple Road, Suite #2, Williamsville, NY 14221. The practice phone is (716) 322-1000.
- Endoscopy Center of Western New York60 Maple Road, Suite #2, Williamsville, NY 14221Phone(716) 322-1000
Source: Dmand AI Affiliation Data
Dr. Stanley James Pietrak is affiliated with 2 sites of care and 1 medical group
Dr. Pietrak's primary practice is Endoscopy Center of Western New York in Williamsville, New York. The medical group on file is Gastroenterology Associates. Dmand AI also links Dr. Pietrak to 1 more group practice or clinic, named with a free account.
Endoscopy Center of Western New YorkPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Stanley James Pietrak's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Pietrak practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Endoscopy Center of Western New York | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stanley James Pietrak is one of 1,583 gastroenterologists in New York
Gastroenterology is Dr. Pietrak's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Pietrak is licensed in New York.
Specialties and state licenses
- Gastroenterology, New YorkPrimary
Gastroenterologists near Dr. Pietrak
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Stanley James Pietrak billed Medicare for 344 services in 2024
CMS data shows 344 Medicare services from Dr. Pietrak across 10 procedure codes in 2024, for 205 Medicare patients. Medicare paid $34,048 for them.
Medicare services, 2024344
Medicare patients205
Paid by Medicare$34,048
Procedure codes10
Dr. Pietrak's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1292024: 15520%
- Surgery
- 2023: 1272024: 1281%
- Other services
- 2023: 702024: 6113%
Where Dr. Pietrak's Medicare services took place, 2024
- In an office15545%
- In a facility18955%
Dr. Pietrak compared with the New York median for gastroenterologists, 2024
- Dr. Pietrak
- New York median
- Medicare services
- 344vs 42118% below
- Medicare patients
- 205vs 23613% below
- Part D claims
- 2,417vs 3826.3 times
Medians across 1,551 gastroenterologists in New York with Dmand AI profiles that report each measure.
Dr. Pietrak's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stanley James Pietrak treated 205 Medicare patients in 2024, average age 71
CMS counts 205 Medicare patients who saw Dr. Pietrak in 2024. The largest group is 65 to 74, with 115 patients. 75% of them have high cholesterol, and 73% have high blood pressure. 14% are also on Medicaid. Their average risk score is 1.17, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Pietrak's median patient age at 66, with 54% women.
Medicare patients, 2024205
Average age71
Average risk score1.17
Also on Medicaid14%
Dr. Pietrak's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Pietrak's Medicare patients by sex, 2024
- Women11355%
- Men9245%
Chronic conditions among Dr. Pietrak's Medicare patients, 2024
- High cholesterol75%
- High blood pressure73%
- Arthritis52%
- Anxiety36%
- Mood disorders32%
- Chronic kidney disease29%
- Depression29%
- Ischemic heart disease25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Pietrak's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Stanley James Pietrak wrote 2,572 Medicare Part D claims in 2024
In 2024, Dr. Pietrak wrote 2,572 Medicare Part D claims for 461 patients. 89% of them were for generic drugs. CMS names the drug for 2,417 of them, across 29 drugs with 11 or more claims each, at $883,549 in total drug cost. In 2023, CMS named 2,351 claims across 26 drugs.
Part D claims, 20242,572
Drugs named by CMS29
Total drug cost$883,549
Part D patients461
Dr. Pietrak's Part D claims by kind of drug, 2024
- Generic2,277 claims89%
- Brand-name295 claims11%
Dr. Pietrak's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Pietrak's Part D claims, 2024
- Antibiotics2%62 of 2,572 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,3512024: 2,4173%
Drugs named by CMS: 29 in 2024, 26 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Stanley James Pietrak ranks in the 83rd percentile for colonoscopy in Medicare
Dr. Pietrak accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 115 procedures of colonoscopy by Dr. Pietrak, more than 83% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Pietrak ranks in Medicare procedure volume
- Colonoscopy
- 83rd percentile115 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 66th percentile57 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Stanley James Pietrak has 1 publication on record
Dmand AI links 1 paper to Dr. Pietrak in 2019. Dr. Pietrak's most frequent co-authors are Eva Marie Aagaard, MD, Bryan Basil Brimhall, MD and Lukejohn Welch Day, MD.
Papers1
Dr. Pietrak's most frequent co-authors
- Eva Marie Aagaard, MD1 shared paper
- Bryan Basil Brimhall, MD1 shared paper
- Lukejohn Welch Day, MD1 shared paper
Recent publications by Dr. Pietrak
See who Dr. Pietrak researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Pietrak works with, so you can find a warm path to the right gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Stanley James Pietrak received $5,722 in industry payments from 2016 to 2025
CMS Open Payments shows 294 general payments to Dr. Pietrak from 30 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $1,426.
General payments to Dr. Pietrak by program year, 2016 to 2025
General payments to Dr. Pietrak by kind, 2016 to 2025
$5.7Kin total
- Food and beverage$5,707100%
- Education$150%
Companies that paid Dr. Pietrak the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stanley James Pietrak graduated from Albany Medical College
Dr. Pietrak graduated from Albany Medical College in 1979.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Stanley James Pietrak's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Stanley James Pietrak
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Stanley James Pietrak's NPI number?
Dr. Stanley James Pietrak's NPI number is 1396794939. It was assigned on May 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Stanley James Pietrak?
Dr. Stanley James Pietrak is a gastroenterologist in Buffalo, New York. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Stanley James Pietrak practice?
Dr. Pietrak practices at 60 Maple Road, Suite #2, Williamsville, NY 14221. Dr. Pietrak's primary practice is Endoscopy Center of Western New York in Williamsville, New York. Dmand AI also links Dr. Pietrak to 1 group practice or clinic.
What is Dr. Stanley James Pietrak's office phone number?
The practice phone on file for Dr. Pietrak is (716) 322-1000.
What is Dr. Stanley James Pietrak's medical license number?
Dr. Pietrak holds New York license 143423.
What medical group is Dr. Stanley James Pietrak part of?
Dr. Pietrak is linked to Gastroenterology Associates.
Does Dr. Stanley James Pietrak accept Medicare?
Yes. CMS data shows Dr. Pietrak billed Medicare for 344 services in 2024, and Dr. Pietrak accepts Medicare assignment.
How many Medicare patients does Dr. Stanley James Pietrak see?
CMS counts 205 Medicare patients who saw Dr. Pietrak in 2024, with an average age of 71.
What services does Dr. Stanley James Pietrak bill to Medicare?
In 2024, Dr. Pietrak's most billed Medicare services were office visit, established patient (99214), surgery: digestive system (45385) and surgery: digestive system (43239).
Where did Dr. Stanley James Pietrak go to medical school?
Dr. Pietrak graduated from Albany Medical College in 1979.
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What drugs does Dr. Stanley James Pietrak prescribe most?
In 2024 Medicare Part D data, Dr. Pietrak's most prescribed drugs by claims were Pantoprazole Sodium, Omeprazole and Famotidine.
Has Dr. Stanley James Pietrak received payments from drug or device companies?
CMS Open Payments shows $5,722 in general payments to Dr. Pietrak from 30 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Stanley James Pietrak been practicing?
Dr. Pietrak graduated from medical school in 1979, 47 years ago.
Does Dr. Stanley James Pietrak do research?
Dmand AI links 1 publication to Dr. Pietrak.
Who does Dr. Stanley James Pietrak publish with?
Dr. Pietrak's most frequent co-authors are Eva Marie Aagaard, MD (1 shared paper), Bryan Basil Brimhall, MD (1 shared paper) and Lukejohn Welch Day, MD (1 shared paper).
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