Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Michael Anthony Grefer, MD

Orthopaedic Surgery Physician in Edgewood, KY · enumerated 2005.

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

National Provider Identifier

1881699692

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Registry record

Entity type Individual (Type 1)

Name Dr. Michael Anthony Grefer

Credential MD

Sex Male

Practice address 560 S Loop Rd, Edgewood, KY, 41017

Phone (859) 301-2663

Fax (859) 301-0655

Enumeration date Jun 17, 2005

Last updated in NPPES May 11, 2015

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 18854 (KY) 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
200039822	Other	KY	RAILROAD MEDICARE
64188543	Medicaid	KY	-
000000033937	Other	KY	ANTHEM
90008962	Other	KY	MEDICAID DME
CB8861	Other	KY	RAILROAD MEDICARE
428850001	Other	KY	MEDICARE DME

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 Grefer?

Michael Grefer is registered in NPPES with the primary taxonomy of Orthopaedic 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.

Other providers at this practice address

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Bruce Holladay Orthopaedic Surgery Physician · Edgewood, KY NPI 1548262793 Matthew Desjardins Sports Medicine (Family Medicine) Physician · Edgewood, KY NPI 1699777847 Matthew Connolly Podiatrist · Edgewood, KY NPI 1023010279 John Bever Orthopaedic Surgery Physician · Edgewood, KY NPI 1730181991 Thomas Due Orthopaedic Hand Surgery Physician · Edgewood, KY NPI 1831194638 Michael O'Brien Orthopaedic Surgery Physician · Edgewood, KY NPI 1306842661 Richard Hoblitzell Orthopaedic Surgery Physician · Edgewood, KY NPI 1164428421 Lorrie Kanoza Hand Occupational Therapist · Edgewood, KY NPI 1437157468

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-05-11.