John M Ryzenman, MD

Primary specialty

Otology & Neurotology PhysicianTaxonomy code 207YX0901X

License

035088358 Issued in OH

Practice address

600 Taylor Station Road
Gahanna, OH 43230

Phone

(614) 891-9190

Fax

(614) 839-9174

NPI assigned

Aug 3, 2006

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in OH, GA2 enrollments

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 2

Specialty

Otolaryngology

Education

University of Cincinnati College of Medicine, 1999

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Ohio Ear Institute LLCGroup PAC ID 9739187618, 2 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Mount Carmel St Ann'S Hospital, Westerville, OH, CCN 360012
• Phoebe Putney Memorial Hospital Hospital, Albany, GA, CCN 110007
• Mount Carmel East & West Hospital, Columbus, OH, CCN 360035

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://api.platform.athenahealth.com/16219/brand/1/csg/1/fhir/r4

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.

• Ohio Ear Institute LLC

  • Otology & Neurotology Physician
  • Westerville, OH
  • NPI 1720157381
  Medicare reassignment Care Compare group NPD Authorized official
• Phoebe Physician Group, Inc

  • Clinic/Center
  • Albany, GA
  • NPI 1487899464
  Medicare reassignment NPD
• Diseases of the Ears, Nose and Throat, Inc

  • Otolaryngology Physician
  • Gahanna, OH
  • NPI 1720183163
  NPD
• Lima Memorial Joint Operating Company

  • General Acute Care Hospital
  • Lima, OH
  • NPI 1336144732
  NPD (past)

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

• Mount Carmel Health System

  • General Acute Care Hospital
  • Westerville, OH
  • NPI 1417037045
  Care Compare affiliation
• Mount Carmel Health System

  • General Acute Care Hospital
  • Grove City, OH
  • NPI 1710067376
  Care Compare affiliation
• Mount Carmel Health System

  • General Acute Care Hospital
  • Columbus, OH
  • NPI 1982784534
  Care Compare affiliation
• Phoebe Putney Memorial Hospital Inc

  • General Acute Care Hospital
  • Albany, GA
  • NPI 1992789721
  Care Compare affiliation

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

{
    "created_epoch": "1154563200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753660800000",
    "number": "1871501437",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 606",
            "city": "NEW ALBANY",
            "state": "OH",
            "postal_code": "43054",
            "telephone_number": "614-891-9190",
            "fax_number": "614-839-9174"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "600 TAYLOR STATION ROAD",
            "city": "GAHANNA",
            "state": "OH",
            "postal_code": "43230",
            "telephone_number": "614-891-9190",
            "fax_number": "614-839-9174"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "RYZENMAN",
        "first_name": "JOHN",
        "middle_name": "M",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-08-03",
        "last_updated": "2025-07-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207YX0901X",
            "taxonomy_group": "",
            "desc": "Otolaryngology, Otology & Neurotology",
            "state": "OH",
            "license": "35-088358",
            "primary": false
        },
        {
            "code": "207YX0901X",
            "taxonomy_group": "",
            "desc": "Otolaryngology, Otology & Neurotology",
            "state": "OH",
            "license": "035088358",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Doretta Easley Rue, COSMETOLOGIST
• Taylor Ruh, MSW, LSW
• Runion Dental Group,LLC
• Jessica E Runion
• John S Russ, M.D.
• Chad Dale Saathoff, D.C.
• Saba Bonte LLC
• Elizabeth Sabol, M.D.
• Teresa Ann Sahni
• Mike Saiia, PTA

• Otology & Neurotology Physician in Gahanna, OH
• Providers in Gahanna, OH by specialty
• Otology & Neurotology Physician in Ohio

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 28, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.