Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Marc Singer, M.D.

Q: What is the NPI number for Marc Singer?

The National Provider Identifier (NPI) for Marc Singer is 1194732909, a Type 1 (individual) record in the CMS NPPES registry.

Colon & Rectal Surgery Physician in Chicago, IL · enumerated 2006.

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

National Provider Identifier

1194732909

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Marc Singer

Credential M.D.

Sex Male

Practice address 1740 W Taylor St, Dept 3449, Chicago, IL, 60612

Phone (312) 704-2885

Fax (312) 704-2737

Enumeration date Aug 2, 2006

Last updated in NPPES May 4, 2021

Taxonomy & licenses

208C00000X Colon & Rectal Surgery Physician Allopathic & Osteopathic Physicians · License 036100526 (IL) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 Marc Singer 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 Marc Singer?

The National Provider Identifier (NPI) for Marc Singer is 1194732909, 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 2021-05-04.