Individual provider Active NPI

Eric Y Knoll, M.D.

  • Otolaryngology Physician
  • Indianapolis, IN
National Provider Identifier
1083771331
Registry record updated Apr 3, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Otolaryngology PhysicianTaxonomy code 207Y00000X
License
01038633A Issued in IN
Practice address
5255 E Stop 11 Rd Ste 400
Indianapolis, IN 46237-6341
Phone
(317) 528-6640
Fax
(317) 528-6650
NPI assigned
Jan 3, 2007
Last updated
Apr 3, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 3, 2026

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 01038633A IN Primary

Addresses

Primary practice location

5255 E Stop 11 Rd Ste 400
Indianapolis, IN 46237-6341

Mailing address

PO Box 781076
Detroit, MI 48278-1008
Phone (317) 528-4800

Other practice location 1

5255 E Stop 11 Rd
Suite 400
Indianapolis, IN 46237-6341
Phone (317) 844-7059

Other practice location 2

1550 E County Line Rd Ste 315
Indianapolis, IN 46227-0990
Phone (317) 497-6888

Other identifiers 2

IdentifierTypeStateIssuer
100047400MedicaidIN
040014750OtherINMEDICARE RAILROAD

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address EKNOLL@OA2046.SRS-DIRECT.COM Direct Otolaryngology Associates, LLC

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IN
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
I20100414000500 IN Practitioner - Otolaryngology 9638206121 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Otolaryngology
Education
Indiana University School of Medicine, 1987
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Otolaryngology Associates LLCGroup PAC ID 7810931409, 45 clinicians
Community Physicians of Indiana IncGroup PAC ID 1759416662, 1,569 clinicians
Franciscan Physician NetworkGroup PAC ID 3072790682, 1,152 clinicians

Practice addresses (Care Compare)

13100 E 136TH St
Suite 1200
Fishers, IN 46037-9418
Phone (317) 844-7059

1550 E County Line Rd
Suite 315
Indianapolis, IN 46227-0990
Phone (317) 353-9338

5255 E Stop 11 Rd
Indianapolis, IN 46237-6341
Phone (317) 844-7059

Hospital & facility affiliations

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Franciscan Physician Network CurrentSince Apr 1, 2026 Accepting new patients
Otolaryngology Associates, LLC Otolaryngology CurrentSince Jul 1, 1999 Accepting new patients
Community Physicians of Indiana Inc CurrentSince Aug 7, 2023 Accepting new patients
Community Physicians of Indiana Inc CurrentSince Aug 7, 2023 Accepting new patients
Franciscan Physician Network CurrentSince Apr 1, 2026 Accepting new patients
Major Hospital Past Accepting new patients

Locations

5819 Reliable Pkwy
Chicago, IL 60686

10201 N Illinois St
Ste 110
Carmel, IN 46290
Phone (317) 819-2825

13100 E 136th St
Ste 1200
Fishers, IN 46037
Phone (317) 573-4370

1550 E County Line Rd
Ste 315
Indianapolis, IN 46227
Phone (317) 497-6888

5255 E Stop 11 Rd
Ste 400
Indianapolis, IN 46237
Phone (317) 528-6640

7120 Clearvista Dr
Ste 4000
Indianapolis, IN 46256
Phone (317) 621-7444

9002 N Meridian St
Ste 222
Indianapolis, IN 46260
Phone (317) 573-4370

1001 Hadley Rd
Ste 180
Mooresville, IN 46158
Phone (317) 528-6640

Interoperability endpoints

  • Direct secure messaging: eknoll@oa2046.srs-direct.com
  • Direct secure messaging: eknoll10546@direct.franciscanalliance.org
  • FHIR API: https://fhir4.healow.com/fhir/r4/IEEADA

Organizations & group practices 6

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

Hospital & facility affiliations 3

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": "1167782400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1775174400000",
    "number": "1083771331",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 781076",
            "city": "DETROIT",
            "state": "MI",
            "postal_code": "482781008",
            "telephone_number": "317-528-4800",
            "fax_number": "317-865-1479"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5255 E STOP 11 RD STE 400",
            "city": "INDIANAPOLIS",
            "state": "IN",
            "postal_code": "462376341",
            "telephone_number": "317-528-6640",
            "fax_number": "317-528-6650"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "5255 E Stop 11 Rd",
            "address_2": "Suite 400",
            "address_purpose": "LOCATION",
            "city": "Indianapolis",
            "state": "IN",
            "postal_code": "462376341",
            "country_code": "US",
            "telephone_number": "317-844-7059",
            "fax_number": "317-819-0044",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1550 E County Line Rd Ste 315",
            "address_purpose": "LOCATION",
            "city": "Indianapolis",
            "state": "IN",
            "postal_code": "462270990",
            "country_code": "US",
            "telephone_number": "317-497-6888",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KNOLL",
        "first_name": "ERIC",
        "middle_name": "Y",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-01-03",
        "last_updated": "2026-04-03",
        "certification_date": "2026-04-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Y00000X",
            "taxonomy_group": "",
            "desc": "Otolaryngology",
            "state": "IN",
            "license": "01038633A",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100047400",
            "state": "IN"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE RAILROAD",
            "identifier": "040014750",
            "state": "IN"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "EKNOLL@OA2046.SRS-DIRECT.COM",
            "affiliation": "Y",
            "affiliationName": "Otolaryngology Associates, LLC",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "9002 North Meridian Street",
            "address_2": "Suite 222",
            "city": "Indianapolis",
            "state": "IN",
            "country_code": "US",
            "postal_code": "462605350",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Indianapolis, IN

Sources for this page

Verify at the official NPI Registry.