Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Rebecca P Walker, M.D.

Obstetrics & Gynecology Physician in Louisville, KY · enumerated 2006.

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

National Provider Identifier

1689639510

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Registry record

Entity type Individual (Type 1)

Name Rebecca P Walker

Credential M.D.

Sex Female

Practice address 4420 Dixie Hwy, Suite 128, Louisville, KY, 40216

Phone (502) 449-6400

Fax (502) 449-6401

Enumeration date Apr 20, 2006

Last updated in NPPES Jul 25, 2022

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 37292 (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
2440247000	Other	-	PASSPORT / CMA DBA
64054133	Medicaid	KY	-
P00216934	Other	KY	RAILROAD MEDICARE
017233	Other	-	SIHO / CMA DBA
200393600	Medicaid	IN	-
9432089003	Other	-	CIGNA / CMA DBA
000000350752	Other	-	ANTHEM / CMA DBA
00005215C	Other	-	HUMANA / CMA DBA
1168002	Other	-	PASSPORT / CMA DBA

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

What is the NPI number for Rebecca Walker?

The National Provider Identifier (NPI) for Rebecca Walker is 1689639510, a Type 1 (individual) record in the CMS NPPES registry.

Where does Rebecca Walker practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-25.