Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Gary L Koehn, MD, PHD

Interventional Pain Medicine Physician in La Grange Highlands, IL · enumerated 2006.

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

National Provider Identifier

1992758965

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Registry record

Entity type Individual (Type 1)

Name Gary L Koehn

Credential MD, PHD

Sex Male

Practice address La Grange Highlands, IL, 60525

Phone (708) 482-4500

Fax (708) 482-4502

Enumeration date May 18, 2006

Last updated in NPPES Nov 8, 2012

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 25969 (WI) Secondary

207LP2900X Pain Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians · License 036074138 (IL) Secondary

208VP0014X Interventional Pain Medicine Physician Allopathic & Osteopathic Physicians · License 036074138 (IL) 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
030038	Other	IL	HEALTH ALLIANCE ID
01608719	Other	IL	BLUE CROSS PROVIDER NO.
132321800	Other	IL	US DEPT OF LABOR GROUP
1164451308	Other	IL	GL KOEHN ASSOC GROUP NPI

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 Gary Koehn?

Gary Koehn is registered in NPPES with the primary taxonomy of Interventional Pain 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 2012-11-08.