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Dr. Benjamin Gruber, MD, PHD, FACS

Otolaryngology Physician in Chicago, IL · enumerated 2006.

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

National Provider Identifier

1134197957

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Registry record

Entity type Individual (Type 1)
Name Dr. Benjamin Gruber
Credential MD, PHD, FACS
Sex Male
Practice address 2535 S King Dr, Chicago, IL, 60616
Phone (312) 842-7117
Fax (312) 326-2102
Enumeration date Mar 9, 2006
Last updated in NPPES Jul 9, 2025

Taxonomy & licenses

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 036-067590 (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

Where does Benjamin Gruber practice?
The practice location on file with NPPES is in Chicago, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Benjamin Gruber?
The National Provider Identifier (NPI) for Benjamin Gruber is 1134197957, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-09.