NPPES file of Aug 9, 2026

Marten Boyd Duncan, D.O.

Gastroenterology Physician · Port Matilda, PA

Marten Boyd Duncan, D.O. is a gastroenterology physician with a practice address in Port Matilda, Pennsylvania, and NPI 1215037312, issued on Sep 25, 2006. Check the license (Pennsylvania OS015419, as entered in NPPES) on the Pennsylvania Department of State (PALS); 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
1215037312
Name
Marten Boyd Duncan
Credential
D.O.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
OS015419 PA
Self-reported in NPPES; status is on the state search
Practice location
132 Abigail LN, Port Matilda, PA 16870
Phone
(814) 272-5011
Enumerated
Sep 25, 2006
Record last updated
Aug 10, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(814) 272-6531
Medicare enrollment
Enrolled (PECOS I20110620000072); accepts Medicare assignment
Medical or professional school
College Of Osteo Med Of The Pacific At Pomona, 1998
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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Also registered at 132 Abigail LN

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

  1. Molham Abdulsamad, M.D.Gastroenterology Physician1174836712
  2. Thomas Amankonah, MDGastroenterology Physician1780762534
  3. Lynn Anderson, RDN, LDNRegistered Dietitian1588320386
  4. Mark Armstrong, M.D.Surgery Physician1013981711
  5. Samantha Backer, MSN, CRNP, FNP-CNurse Practitioner1992077184
  6. Ashlyn BarcheckPhysician Assistant1518755826

Verify Marten Boyd Duncan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license OS015419
    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 Pennsylvania license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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45% fewer Medicare Part D claims than the average gastroenterology physician in 2024

442 Medicare Part D claims for 214 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.

  1. Marten Duncan442
  2. Specialty average811

Most prescribed

  1. Omeprazole68 claims
  2. Ciprofloxacin Hcl66 claims
  3. Sucralfate41 claims
  4. Pantoprazole Sodium32 claims
  5. Linzess28 claims
  6. Amoxicillin-Clavulanate Potass22 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.

Bills Medicare through one group practice

  1. Geisinger ClinicDanville, PA

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

Marten Boyd Duncan among 1,049 gastroenterology physician records in Pennsylvania

Marten Boyd Duncan, D.O. is one of 1,049 gastroenterology physician records with a practice address in Pennsylvania. 85% 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 14% of them.

  • NPI issued2006 · 14% of these records are older, 47% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated1998 · median 2003 among the 769 with a school on file
  • Record last updated2020 · 63% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

8 gastroenterology physician records list a practice address in Port Matilda

They are 8 of the 163 NPPES records with a practice address in Port Matilda, and 1,049 gastroenterology physician records in Pennsylvania.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Molham Abdulsamad, M.D.Port Matilda, PA 168701174836712
  2. Thomas Amankonah, MDPort Matilda, PA 168701780762534
  3. Brandon Craft, M.D.Port Matilda, PA 168701164500500
  4. Irphan Gaslightwala, M.D.Port Matilda, PA 168701376572370
  5. Jeffrey Lichtenstein, M.D.Port Matilda, PA 168701598726598
  6. Ashley Nickerson, D.O.Port Matilda, PA 168701821450289
  7. Mark Okonski, MDPort Matilda, PA 168701952393209
  8. Donald Schneider, M.D.Clearfield, PA 168301538126925

Common questions

What is Marten Boyd Duncan, D.O.'s NPI number?

Marten Boyd Duncan, D.O.'s National Provider Identifier (NPI) is 1215037312, issued on Sep 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Marten Boyd Duncan, D.O. located?

The NPPES record lists a practice address at 132 Abigail LN, Port Matilda, PA, 16870. Phone: (814) 272-5011. Providers update this record themselves, so call before visiting.

How can I verify Marten Boyd Duncan, D.O.'s license?

NPPES lists Pennsylvania license number OS015419, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Marten Boyd Duncan, D.O. prescribe under Medicare Part D?

In 2024, Marten Boyd Duncan, D.O. had 442 Medicare Part D claims for 214 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.

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.