Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Michael J. Hartman, MD

Q: What is the NPI number for Michael J. Hartman, MD?

The NPI for Michael J. Hartman, MD is 1437349495, a Type 2 (organization) record in the CMS NPPES registry.

Orthopaedic Surgery of the Spine Physician in Munster, IN · enumerated 2007 · authorized official Martin Hall, Owner.

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

National Provider Identifier

1437349495

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Registry record

Entity type Organization (Type 2)

Legal business name Michael J. Hartman, MD

Other name <Unavail>

Practice address 801 Macarthur Blvd, Suite 304, Munster, IN, 46321

Phone (219) 836-4123

Fax (219) 836-0276

Enumeration date Jul 26, 2007

Last updated in NPPES Jul 26, 2007

Taxonomy & classification

207XS0117X Orthopaedic Surgery of the Spine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Martin Hall

Title Owner

Phone (708) 799-1144

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

Who is the authorized official for Michael J. Hartman, MD?

NPPES lists Martin Hall (Owner) as the authorized official for this organization.

What is the NPI number for Michael J. Hartman, MD?

The NPI for Michael J. Hartman, MD is 1437349495, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-26.