James Edward Duncan, M.D.
Colon & Rectal Surgery Physician · Bethesda, MD
James Edward Duncan, M.D. is a colon & rectal surgery physician with a practice address in Bethesda, Maryland, and NPI 1508867797, issued on Aug 10, 2005. Check the license on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- James Edward Duncan
- Credential
- M.D.
- Primary taxonomy
- Colon & Rectal Surgery Physician 208C00000X
- License number
- 0101057915 VA
Self-reported in NPPES; status is on the state search - Practice location
- National Naval Medical Center, Dept. OF Surgery, Bethesda, MD 20889
- Phone
- (301) 295-4603
- Enumerated
- Aug 10, 2005
- Record last updated
- Jul 13, 2026
- Entity
- Type 1 · individual
8 nearest colon & rectal surgery physician records → All 32 in Maryland → Look up another NPI →
Verify James Edward Duncan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of PhysiciansCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $78.42
1 payment: food and beverage; the largest payer was Ethicon US, LLC. The 1,524 providers of this specialty with any payment received $3,468.16 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
James Edward Duncan among 32 colon & rectal surgery physician records in Maryland
James Edward Duncan, M.D. is one of 32 colon & rectal surgery physician records with a practice address in Maryland. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 78% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 72% of these records are
- Record last updated2026 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208C00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Colon & Rectal Surgery Physician providers in Maryland
There are 32 colon & rectal surgery physician records in Maryland.
All 32 in Maryland → Every provider in Bethesda → Colon & Rectal Surgery Physician nationwide →
The 8 colon & rectal surgery physician records with the nearest ZIP codes
- Elyse Leevan, M.D.Bethesda, MD 208891699116608
- Mary Teresa O'Donnell, M.D.Bethesda, MD 208891891016135
- Benjamin Quartey, M.D.Bethesda, MD 208891023166782
- Matthew Skancke, M.D.Silver Spring, MD 209101376987065
- Bradley Bennett, M.D.Rockville, MD 208521609985613
- Ada Graham, M.D.Bethesda, MD 208171902291081
- Vivek Patil, M.D.Bethesda, MD 208171790942852
- Allen Wolland, M.D.Bethesda, MD 208171619919859
Common questions
What is James Edward Duncan, M.D.'s NPI number?
James Edward Duncan, M.D.'s National Provider Identifier (NPI) is 1508867797, issued on Aug 10, 2005. An NPI identifies a provider in billing; it is not a license.
Where is James Edward Duncan, M.D. located?
The NPPES record lists a practice address at National Naval Medical Center, Dept. OF Surgery, Bethesda, MD, 20889. Phone: (301) 295-4603. Providers update this record themselves, so call before visiting.
How can I verify James Edward Duncan, M.D.'s license?
Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
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.