Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Steven L Posar, MD

Internal Medicine Physician in Crown Point, IN · enumerated 2005.

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

National Provider Identifier

1154308575

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Registry record

Entity type Individual (Type 1)

Name Steven L Posar

Credential MD

Sex Male

Practice address 2100 N Main St Ste 304, Crown Point, IN, 46307

Phone (574) 546-1900

Fax (574) 546-1999

Enumeration date Dec 28, 2005

Last updated in NPPES Apr 7, 2026

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 35.138677 (OH) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 04-50653 (KS) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 52736 (KY) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 2025044479 (MO) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 4301036005 (MI) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 01046045A (IN) Primary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036150622 (IL) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD488690C (PA) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License T2472 (TX) 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
T2472	Other	TX	STATE LICENSE
35.138677	Other	OH	STATE LICENSE
68641	Other	TN	STATE LICENSE

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

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.

What specialty is Steven Posar?

Steven Posar is registered in NPPES with the primary taxonomy of Internal Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-07.