Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Walter Allen Oaks, MD

Q: What is the NPI number for Walter Oaks?

The National Provider Identifier (NPI) for Walter Oaks is 1538157888, a Type 1 (individual) record in the CMS NPPES registry.

Diagnostic Radiology Physician in Mobile, AL · enumerated 2005.

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

National Provider Identifier

1538157888

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Registry record

Entity type Individual (Type 1)

Name Dr. Walter Allen Oaks

Credential MD

Sex Male

Practice address 100 Memorial Hospital Dr, Ste 1e, Mobile, AL, 36608

Phone (251) 316-3868

Fax (251) 316-3583

Enumeration date Oct 11, 2005

Last updated in NPPES May 20, 2008

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 4221 (AL) 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
051538738	Other	AL	BCBS - PAM
051529560	Other	AL	BLUE CROSS BLUE SHIELD
P00387111	Other	AL	RAILROAD MEDICARE - RTO
009942022	Medicaid	AL	-
051538834	Other	AL	BCBS - RTO
P00231791	Other	AL	RAILROAD MEDICARE
P00450207	Other	AL	RR MEDICARE - PET CT
009940617	Medicaid	AL	-
051538361	Other	AL	BCBS - PET
P00371847	Other	AL	RAILROAD MEDICARE - PAM
009933706	Medicaid	AL	-
009940632	Medicaid	AL	-

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 Walter Oaks?

The National Provider Identifier (NPI) for Walter Oaks is 1538157888, a Type 1 (individual) record in the CMS NPPES registry.

Where does Walter Oaks practice?

The practice location on file with NPPES is in Mobile, AL. 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 2008-05-20.