Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sean G Grey, MD

Adult Reconstructive Orthopaedic Surgery Physician in Fort Collins, CO · enumerated 2005.

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

National Provider Identifier

1538142880

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Registry record

Entity type Individual (Type 1)

Name Sean G Grey

Credential MD

Sex Male

Practice address 2500 E Prospect Rd, Fort Collins, CO, 80525

Phone (970) 493-0112

Enumeration date Nov 21, 2005

Last updated in NPPES Dec 16, 2019

Taxonomy & licenses

207XS0114X Adult Reconstructive Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License DR.0033446 (CO) 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
01334465	Medicaid	CO	-
113972000	Medicaid	WY	-

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 Sean Grey's NPI record?

Cross-check NPI 1538142880 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1538142880 active?

Yes, as of the latest NPPES snapshot, NPI 1538142880 is active (record last updated 2019-12-16).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-12-16.