Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gregory Michael Reyes, M.D.

Hospitalist Physician in Chattanooga, TN · enumerated 2011.

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

National Provider Identifier

1659662187

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Registry record

Entity type Individual (Type 1)

Name Gregory Michael Reyes

Credential M.D.

Sex Male

Practice address 975 E 3rd St, Chattanooga, TN, 37403

Phone (423) 778-5179

Fax (423) 778-2108

Enumeration date May 2, 2011

Last updated in NPPES May 15, 2019

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 59137 (TN) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 59137 (TN) 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
59137	Other	TN	MEDICAL LICENSE

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

Is NPI 1659662187 active?

Yes, as of the latest NPPES snapshot, NPI 1659662187 is active (record last updated 2019-05-15).

How do I verify Gregory Reyes's NPI record?

Cross-check NPI 1659662187 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-05-15.