Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Rayyan M Siddiqi, MD

Hospitalist Physician in Elmhurst, IL · enumerated 2013.

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

National Provider Identifier

1144563594

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Registry record

Entity type Individual (Type 1)

Name Dr. Rayyan M Siddiqi

Credential MD

Sex Male

Practice address Elmhurst, IL, 60126

Phone (331) 221-8952

Fax (331) 221-3782

Enumeration date Apr 4, 2013

Last updated in NPPES Oct 24, 2018

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036140486 (IL) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 036140486 (IL) Primary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Rayyan Siddiqi?

The National Provider Identifier (NPI) for Rayyan Siddiqi is 1144563594, a Type 1 (individual) record in the CMS NPPES registry.

Where does Rayyan Siddiqi practice?

The practice location on file with NPPES is in Elmhurst, 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 2018-10-24.