Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Matthew Warren Harrison, MD

Gastroenterology Physician in Indianapolis, IN · enumerated 2006.

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

National Provider Identifier

1699742015

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Registry record

Entity type Individual (Type 1)

Name Matthew Warren Harrison

Credential MD

Sex Male

Practice address 7950 N Shadeland Ave, Ste 350, Indianapolis, IN, 46250

Phone (317) 578-2600

Fax (317) 578-6474

Enumeration date Mar 3, 2006

Last updated in NPPES Nov 27, 2023

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 01051075A (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
200307760A	Medicaid	IN	-
000000793519	Other	IN	ANTHEM
P01170509	Other	IN	RR MEDICARE PTAN

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Matthew Harrison practice?

The practice location on file with NPPES is in Indianapolis, IN. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Matthew Harrison?

The National Provider Identifier (NPI) for Matthew Harrison is 1699742015, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-11-27.