Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alan F Stupnitsky, MD

Physical Medicine & Rehabilitation Physician in Chicago, IL · enumerated 2019.

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

National Provider Identifier

1598225864

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Registry record

Entity type Individual (Type 1)

Name Alan F Stupnitsky

Credential MD

Sex Male

Practice address 259 E Erie St Ste 1450, Chicago, IL, 60611

Phone (312) 695-6800

Fax (312) 694-6387

Enumeration date Mar 22, 2019

Last updated in NPPES Jul 17, 2026

Taxonomy & licenses

208100000X Physical Medicine & Rehabilitation Physician Allopathic & Osteopathic Physicians · License 68742 (AZ) Secondary

208100000X Physical Medicine & Rehabilitation Physician Allopathic & Osteopathic Physicians · License 036171817 (IL) Primary

208100000X Physical Medicine & Rehabilitation Physician Allopathic & Osteopathic Physicians · License 2020017229 (MO) Secondary

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.

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Frequently asked questions

What is the NPI number for Alan Stupnitsky?

The National Provider Identifier (NPI) for Alan Stupnitsky is 1598225864, a Type 1 (individual) record in the CMS NPPES registry.

Where does Alan Stupnitsky practice?

The practice location on file with NPPES is in Chicago, 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 2026-07-17.