Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mohammed A Chowdhury, M.D.

Specialist in Palatine, IL · enumerated 2005 · practices at Rehabilitation Associates of the Midwest, S.C..

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

National Provider Identifier

1831174598

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Registry record

Entity type Individual (Type 1)

Name Mohammed A Chowdhury

Credential M.D.

Sex Male

Practice address 909 E Palatine Rd, Palatine, IL, 60074

Phone (847) 776-1400

Fax (847) 776-1424

Enumeration date Dec 14, 2005

Last updated in NPPES Mar 19, 2021

Taxonomy & licenses

208100000X Physical Medicine & Rehabilitation Physician Allopathic & Osteopathic Physicians · License MD48064 (IA) Secondary

174400000X Specialist Other Service Providers · License 036105337 (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
250012754	Other	IL	MEDICARE RAILROAD
036105337	Medicaid	IL	-
06168781	Other	IL	BC/BS

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

How do I verify Mohammed Chowdhury's NPI record?

Cross-check NPI 1831174598 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1831174598 active?

Yes, as of the latest NPPES snapshot, NPI 1831174598 is active (record last updated 2021-03-19).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-19.