Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Timothy Herbert Prahlow, MD

Anatomic Pathology & Clinical Pathology Physician in Michigan City, IN · enumerated 2005.

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

National Provider Identifier

1538152434

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Registry record

Entity type Individual (Type 1)

Name Timothy Herbert Prahlow

Credential MD

Sex Male

Practice address 3500 Franciscan Way, Michigan City, IN, 46360

Phone (219) 879-8511

Fax (219) 877-1081

Enumeration date Aug 25, 2005

Last updated in NPPES Jan 23, 2024

Taxonomy & licenses

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License 01044539A (IN) Primary

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License 036113678 (IL) Secondary

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
351173213	Other	IN	SAGAMORE
82428	Other	IL	BCBS
5229701	Other	IN	CCN
5535745002	Other	IN	CIGNA
351173213	Other	IN	HFN
200185560	Medicaid	IN	-
351173213	Other	IN	ISPAT INLAND

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 Timothy Prahlow?

Timothy Prahlow is registered in NPPES with the primary taxonomy of Anatomic Pathology & Clinical Pathology 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-01-23.