Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mohammed Sirajuddin Hammad, MD

Hospitalist Physician in Olympia Fields, IL · enumerated 2006.

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

National Provider Identifier

1235148982

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Registry record

Entity type Individual (Type 1)

Name Mohammed Sirajuddin Hammad

Credential MD

Sex Male

Practice address 20201 Crawford Ave, Olympia Fields, IL, 60461

Phone (708) 679-2160

Enumeration date Aug 5, 2006

Last updated in NPPES Jun 21, 2023

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036110255 (IL) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 5761662-1205 (UT) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 5761662-1205 (UT) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 036110255 (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
F400289336	Other	IL	MEDICARE PTAN

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 Hammad's NPI record?

Cross-check NPI 1235148982 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1235148982 active?

Yes, as of the latest NPPES snapshot, NPI 1235148982 is active (record last updated 2023-06-21).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-06-21.