NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Thomas J Duntemann, MD

Gastroenterology Physician in Suffolk, VA · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1336123074

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Registry record

Entity type Individual (Type 1)
Name Dr. Thomas J Duntemann
Credential MD
Sex Male
Practice address 5818 Harbour View Blvd, Suite 240, Suffolk, VA, 23435
Fax (757) 483-2203
Enumeration date Dec 6, 2005
Last updated in NPPES Feb 24, 2010

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 0101053921 (VA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
541870984028 Other - CIGNA
C13214 Other - MEDICARE RR GROUP
0058201504 Other - MEDICAID FIRST HEALTH
110176759 Other - TRAVELERS RR MEDICARE
209383 Other - ANTHEM OBICI
264925 Other - MAMSI OPT CHOICE
100000220 Other - MEDICARE TRAILBLAZERS
541870984 Other - VA HEALTH NETWORK
541870984006 Other - CHAMPUS
69328 Other - SENTARA OPTIMA
005820154 Medicaid VA -
790528L Medicaid NC -
C05825 Other - MEDICARE GROUP
325221 Other - ANTHEM HBV

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What specialty is Thomas Duntemann?
Thomas Duntemann is registered in NPPES with the primary taxonomy of Gastroenterology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-02-24.