Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael B Grillot, M.D.

Orthopaedic Hand Surgery Physician in Glenwood Spgs, CO · enumerated 2005.

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

National Provider Identifier

1366423980

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Registry record

Entity type Individual (Type 1)

Name Michael B Grillot

Credential M.D.

Sex Male

Practice address 1906 Blake Ave, Glenwood Spgs, CO, 81601

Phone (970) 384-7140

Fax (970) 384-7293

Enumeration date Nov 10, 2005

Last updated in NPPES May 21, 2015

Taxonomy & licenses

207XS0106X Orthopaedic Hand Surgery Physician Allopathic & Osteopathic Physicians · License 106801 (MO) Primary

207XS0106X Orthopaedic Hand Surgery Physician Allopathic & Osteopathic Physicians · License 54940 (CO) Secondary

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
128583001	Medicaid	AR	-
P01085134	Other	MO	MCR RR
1366423980	Medicaid	MO	-
431560263	Other	MO	TRICARE

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 Michael Grillot?

Michael Grillot is registered in NPPES with the primary taxonomy of Orthopaedic Hand Surgery 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 2015-05-21.