NPPES file of Aug 9, 2026

Timothy James Duncan, M.D.

Gastroenterology Physician · Newport News, VA

Timothy James Duncan, M.D. is a gastroenterology physician with a practice address in Newport News, Virginia, and NPI 1669466504, issued on Sep 7, 2005. Check the license (Virginia 0101251786, as entered in NPPES) on the Virginia Department of Health Professions; 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
1669466504
Name
Timothy James Duncan
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
0101251786 VA
Self-reported in NPPES; status is on the state search
Practice location
1031 Loftis Blvd Ste 201, Newport News, VA 23606
Phone
(757) 736-9850
Enumerated
Sep 7, 2005
Record last updated
Jul 19, 2023
Medicare enrollment
Enrolled (PECOS I20121127000271); accepts Medicare assignment
Medical or professional school
Uniformed Services Uhs Fe Hebert School Of Med, 2001
Telehealth
Offers telehealth (CMS)
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 1031 Loftis Blvd Ste 201

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

  1. David Arner, M.D.Gastroenterology Physician1851414262
  2. Marsha CampbellAdult Health Nurse Practitioner1952033151
  3. Silvia Degli Esposti, MDGastroenterology Physician1720017924
  4. Filsan Farah, MDGastroenterology Physician1619472131
  5. Sarah Goujon, ACNPAcute Care Nurse Practitioner1588210215
  6. Conesha Grayson, AGNP-PCAdult Health Nurse Practitioner1083344113

Verify Timothy James Duncan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersVirginia Department of Health Professions
    Search for license 0101251786    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 Virginia 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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77% fewer Medicare Part D claims than the average gastroenterology physician in 2024

185 Medicare Part D claims for 79 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.

  1. Timothy Duncan185
  2. Specialty average811

Most prescribed

  1. Gavilyte-G27 claims
  2. Dicyclomine Hcl26 claims
  3. Omeprazole25 claims
  4. Famotidine19 claims
  5. Peg-3350 And Electrolytes12 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. Sentara Medical GroupNewport News, VA

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

Gastroenterology Physician providers in Virginia

There are 536 gastroenterology physician records in Virginia.

All 536 in Virginia → Every provider in Newport News →

Other gastroenterology physician records in Virginia

  1. Mahmood Abedi, MDFairfax, VA1649255233
  2. Mohammad Abidi, MDManassas, VA1295153690
  3. Souheil Abou Assi, M.D.Richmond, VA1023004710
  4. Emad Abuhamda, MDAlexandria, VA1649228099
  5. Jason Adam, M.D.North Chesterfield, VA1275894792
  6. Kenneth Adams, MDNewport News, VA1639161300
  7. Tonya Adams, M.D.Fairfax, VA1861472862
  8. Satyanisth Agrawal, D.O.Norfolk, VA1356503593
  9. Rizwan Ahmed, M.D.Manassas, VA1841469061
  10. Tokunbo Ajayi, M.D.Manassas, VA1255625307

Common questions

What is Timothy James Duncan, M.D.'s NPI number?

Timothy James Duncan, M.D.'s National Provider Identifier (NPI) is 1669466504, issued on Sep 7, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Timothy James Duncan, M.D. located?

The NPPES record lists a practice address at 1031 Loftis Blvd Ste 201, Newport News, VA, 23606. Phone: (757) 736-9850. Providers update this record themselves, so call before visiting.

How can I verify Timothy James Duncan, M.D.'s license?

NPPES lists Virginia license number 0101251786, as entered by the provider. Search the Virginia Department of Health Professions at https://dhp.virginiainteractive.org/lookup/index. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Timothy James Duncan, M.D. prescribe under Medicare Part D?

In 2024, Timothy James Duncan, M.D. had 185 Medicare Part D claims for 79 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.