Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark S. Cohen, M.D.

Q: What is the NPI number for Mark Cohen?

The National Provider Identifier (NPI) for Mark Cohen is 1952380669, a Type 1 (individual) record in the CMS NPPES registry.

Orthopaedic Hand Surgery Physician in Chicago, IL · enumerated 2006.

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

National Provider Identifier

1952380669

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Mark S. Cohen

Credential M.D.

Sex Male

Practice address 1611 W Harrison St, Ste 400, Chicago, IL, 60612

Phone (312) 243-4244

Fax (312) 942-1517

Enumeration date Jan 11, 2006

Last updated in NPPES Jan 25, 2023

Taxonomy & licenses

207XS0106X Orthopaedic Hand Surgery Physician Allopathic & Osteopathic Physicians · License 036086428 (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
207073	Other	IL	MEDICARE PTAN LOCALITY 15
1633878	Other	IL	BCBS
4236219	Other	-	AETNA
036086428	Medicaid	IL	-
207067	Other	IL	MEDICARE PTAN LOCALITY 16
DA4902	Other	IL	RAILROAD MEDICARE PTAN
P00073017	Other	-	RAILROAD MEDICARE

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 Mark Cohen practice?

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

What is the NPI number for Mark Cohen?

The National Provider Identifier (NPI) for Mark Cohen is 1952380669, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-01-25.