Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Brian E Lahmann, M.D.

Surgery Physician in New Lenox, IL · enumerated 2007.

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

National Provider Identifier

1346381837

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Registry record

Entity type Individual (Type 1)

Name Dr. Brian E Lahmann

Credential M.D.

Sex Male

Practice address 1890 Silver Cross Blvd, Suite 260, New Lenox, IL, 60451

Phone (815) 717-8744

Fax (815) 717-9339

Enumeration date Feb 9, 2007

Last updated in NPPES Jan 21, 2022

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 036111197 (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
036111197	Medicaid	IL	-

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

Where does Brian Lahmann practice?

The practice location on file with NPPES is in New Lenox, IL. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Brian Lahmann?

The National Provider Identifier (NPI) for Brian Lahmann is 1346381837, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-01-21.