Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Louis Franklin Ahalt Jr., MSW

Clinical Social Worker in Hagerstown, MD · enumerated 2006.

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

National Provider Identifier

1497822944

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Registry record

Entity type Individual (Type 1)

Name Mr. Louis Franklin Ahalt Jr.

Credential MSW

Sex Male

Practice address 1140 Opal Ct, Hagerstown, MD, 21740

Phone (301) 790-1560

Fax (301) 790-1666

Enumeration date Nov 29, 2006

Last updated in NPPES Dec 27, 2018

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 04986 (MD) Primary

Other identifiers

Identifier	Type	State	Issuer
002860	Other	-	VALUE OPTIONS PROVIDER NO
325085	Other	MD	M.D. IPA PIN
100027640001	Other	MD	APS HEALTHCARE PIN
R036 0001	Other	MD	CAREFIRST BCBS FEP PIN
7680030	Other	MD	AETNA PIN

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 specialty is Louis Ahalt?

Louis Ahalt is registered in NPPES with the primary taxonomy of Clinical Social Worker. 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 2018-12-27.