Individual provider Active NPI

Benjamin Gruber, MD, PHD, FACS

  • Otolaryngology Physician
  • Chicago, IL
National Provider Identifier
1134197957
Registry record updated Jul 9, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Otolaryngology PhysicianTaxonomy code 207Y00000X
License
036-067590 Issued in IL
Practice address
2535 S King Dr
Chicago, IL 60616-4746
Phone
(312) 842-7117
Fax
(312) 326-2102
NPI assigned
Mar 9, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 9, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Otolaryngology Physician 207Y00000X 036-067590 IL Primary

Addresses

Primary practice location

2535 S King Dr
Chicago, IL 60616-4746

Mailing address

29373 Network PL
Chicago, IL 60673-1293

Other practice location 1

2525 S Michigan Ave
Ear Nose and Throat Center, Mercy Hospital
Chicago, IL 60616-2477
Phone (312) 567-2002

Electronic endpoints 2

TypeEndpointUseAffiliation
FHIR URL https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/
Direct Messaging Address bgruber205304@direct.myadvocateaurora.org Direct

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20040714000264 IL Practitioner - Otolaryngology 7214916329 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Otolaryngology
Education
University of Chicago, Pritzker School of Medicine, 1982
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

2535 S Martin Luther King Dr
Chicago, IL 60616
Phone (312) 842-7117

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Melanoma (skin cancer) excision1-10

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine, Doctor of Philosophy

State licenses

LicenseStateTypeSpecialty
036-067590ILMDOtolaryngology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Advocate Health and Hospitals Corporation CurrentSince Mar 30, 2015 Accepting new patients
Advocate Health and Hospitals Corporation CurrentSince Mar 30, 2015 Accepting new patients

Locations

214 McHenry Rd
Buffalo Grove, IL 60089
Phone (847) 459-1160

2535 S King Dr
Chicago, IL 60616
Phone (312) 842-7117

29373 Network Pl
Chicago, IL 60673

2545 S Ml King Dr
Chicago, IL 60616
Phone (312) 842-7117

2315 E 93rd St
Ste 440
Chicago, IL 60617
Phone (773) 768-2535

Interoperability endpoints

  • Direct secure messaging: bgruber205304@direct.myadvocateaurora.org

Organizations & group practices 2

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

Hospital & facility affiliations 4

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1141862400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1752019200000",
    "number": "1134197957",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "29373 NETWORK PL",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606731293"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2535 S KING DR",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606164746",
            "telephone_number": "312-842-7117",
            "fax_number": "312-326-2102"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2525 S Michigan Ave",
            "address_2": "Ear Nose and Throat Center, Mercy Hospital",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606162477",
            "country_code": "US",
            "telephone_number": "312-567-2002",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GRUBER",
        "first_name": "BENJAMIN",
        "name_prefix": "Dr.",
        "credential": "MD, PHD, FACS",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-03-09",
        "last_updated": "2025-07-09",
        "certification_date": "2025-07-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Y00000X",
            "taxonomy_group": "",
            "desc": "Otolaryngology",
            "state": "IL",
            "license": "036-067590",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "2535 S Martin Luther King Drive",
            "address_2": "AMG Sykes",
            "city": "Chicago",
            "state": "IL",
            "country_code": "US",
            "postal_code": "60616",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "bgruber205304@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "2535 S Martin Luther King Drive",
            "address_2": "AMG Sykes",
            "city": "Chicago",
            "state": "IL",
            "country_code": "US",
            "postal_code": "60616",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Chicago, IL

Sources for this page

Verify at the official NPI Registry.