Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Robert M Fliegelman, DO

Infectious Disease Physician in Crestwood, IL · enumerated 2005.

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

National Provider Identifier

1821084120

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Robert M Fliegelman

Credential DO

Sex Male

Practice address 13755 Cicero Ave, Crestwood, IL, 60445

Phone (888) 220-6432

Fax (630) 654-4253

Enumeration date Sep 22, 2005

Last updated in NPPES Dec 20, 2021

Taxonomy & licenses

207RI0200X Infectious Disease Physician Allopathic & Osteopathic Physicians · License 036-061290 (IL) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
200856790	Medicaid	IN	-
0440669	Medicaid	IA	-
036-061-290	Medicaid	IL	-
181084120	Medicaid	MI	-

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 Robert Fliegelman?

The National Provider Identifier (NPI) for Robert Fliegelman is 1821084120, a Type 1 (individual) record in the CMS NPPES registry.

Where does Robert Fliegelman practice?

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

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-20.