Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Alan D Stewart, M.D.

Internal Medicine Physician in Vincennes, IN · enumerated 2007.

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

National Provider Identifier

1003956178

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Registry record

Entity type Individual (Type 1)

Name Dr. Alan D Stewart

Credential M.D.

Sex Male

Practice address Vincennes, IN, 47591

Phone (812) 885-3601

Fax (812) 885-3614

Enumeration date Feb 7, 2007

Last updated in NPPES Oct 28, 2016

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 01026790A (IN) 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
100154930	Medicaid	IN	-
000000604302	Other	IN	ANTHEM
100154930A	Medicaid	IN	-

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

How do I verify Alan Stewart's NPI record?

Cross-check NPI 1003956178 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1003956178 active?

Yes, as of the latest NPPES snapshot, NPI 1003956178 is active (record last updated 2016-10-28).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-10-28.