Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark Raymond Gilbert, M.D.

Q: What is the NPI number for Mark Gilbert?

The National Provider Identifier (NPI) for Mark Gilbert is 1851534960, a Type 1 (individual) record in the CMS NPPES registry.

Otolaryngology Physician in Chicago, IL · enumerated 2009 · practices at University of Illinois Scb Pharmacy.

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

National Provider Identifier

1851534960

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Registry record

Entity type Individual (Type 1)

Name Dr. Mark Raymond Gilbert

Credential M.D.

Sex Male

Practice address 1009 S Wood St, Chicago, IL, 60612

Phone (312) 996-6269

Enumeration date Apr 20, 2009

Last updated in NPPES Dec 14, 2025

Taxonomy & licenses

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 2018032428 (MO) Secondary

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 55586 (TN) Secondary

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 036176822 (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.

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Frequently asked questions

What is the NPI number for Mark Gilbert?

The National Provider Identifier (NPI) for Mark Gilbert is 1851534960, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mark Gilbert practice?

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

Other providers at this practice address

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Mohammad Fayyaz Gastroenterology Physician · Chicago, IL NPI 1992731616 University of Illinois Scb Pharmacy Clinic Pharmacy · Chicago, IL NPI 1336289016 Samuel Ohlander Urology Physician · Chicago, IL NPI 1043452287 Ashley Vareedayah Gastroenterology Physician · Chicago, IL NPI 1386910610 Neelam Patadia Optometrist · Chicago, IL NPI 1609135383 Pathik Amin Optometrist · Chicago, IL NPI 1245632371 Ikenna Madueke Urology Physician · Chicago, IL NPI 1366839581 Jane Suh Gastroenterology Physician · Chicago, IL NPI 1235510447

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-14.