Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Doris F Nussenbaum, M.D.

Internal Medicine Physician in Park Ridge, IL · enumerated 2006.

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

National Provider Identifier

1548286180

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Registry record

Entity type Individual (Type 1)

Name Doris F Nussenbaum

Credential M.D.

Sex Female

Practice address 1775 Dempster St, Park Ridge, IL, 60068

Phone (847) 723-8080

Fax (847) 723-4378

Enumeration date Jul 15, 2006

Last updated in NPPES Dec 18, 2021

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 0036097971 (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
036097971	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

What is the NPI number for Doris Nussenbaum?

The National Provider Identifier (NPI) for Doris Nussenbaum is 1548286180, a Type 1 (individual) record in the CMS NPPES registry.

Where does Doris Nussenbaum practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-18.