John Stewart, M.S., FAAA

Primary specialty

Audiologist-Hearing Aid FitterTaxonomy code 237600000X

License

297 Issued in OK

Practice address

129 W 7TH Ave
Stillwater, OK 74074-4055

Phone

(405) 372-2657

Fax

(405) 372-2749

NPI assigned

Aug 9, 2007

Last updated

Feb 2, 2026By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in OK

Enrollment records 1

Specialty

Qualified Audiologist

Education

Other, 2000

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

JD Stewart Companies PLLCGroup PAC ID 5092949560, 2 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Master of Science

State licenses

Practice roles

Locations

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.

• JD Stewart Companies PLLC

  dba Integrity Audiology

  • Audiologist-Hearing Aid Fitter
  • Stillwater, OK
  • NPI 1578903340
  Medicare reassignment Care Compare group NPD Authorized official
• Exceptional Hearing LLC

  dba Russellville Hearing Clinic

  • Audiologist-Hearing Aid Fitter
  • Russellville, AR
  • NPI 1104706860
  NPD Authorized official
• Oklahoma Otolaryngology Associates, LLC

  • Specialist
  • Oklahoma City, OK
  • NPI 1124118773
  NPD (past)
• Oklahoma Otolaryngology Hearing Center Inc

  dba Oklahoma Hearing Center

  • Audiologist
  • Edmond, OK
  • NPI 1356788954
  NPD (past)

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

{
    "created_epoch": "1186617600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769990400000",
    "number": "1336330760",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "129 W 7TH AVE",
            "city": "STILLWATER",
            "state": "OK",
            "postal_code": "740744055",
            "telephone_number": "405-372-2657",
            "fax_number": "405-372-2749"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "129 W 7TH AVE",
            "city": "STILLWATER",
            "state": "OK",
            "postal_code": "740744055",
            "telephone_number": "405-372-2657",
            "fax_number": "405-372-2749"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "STEWART",
        "first_name": "JOHN",
        "credential": "M.S., FAAA",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2007-08-09",
        "last_updated": "2026-02-02",
        "certification_date": "2026-02-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "237600000X",
            "taxonomy_group": "",
            "desc": "Audiologist-Hearing Aid Fitter",
            "state": "OK",
            "license": "297",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Stephen H Miller DDS PC
• Steve W Cummings MD PLLC
• Desiree Dawn Stevens
• Stevie Jack Stevenson Jr.
• Stewart & Schuessler Orthodontics, PC (Stewart & Schuessler Orthodontics)
• Kaycee L Stewart, PRSS
• Meagan L Stewart
• Tom R Stewart, D.D.S., M.S.D.
• Stillwater Chiropractic Clinic Inc
• Stillwater Counseling Center

• Audiologist-Hearing Aid Fitter in Stillwater, OK
• Providers in Stillwater, OK by specialty
• Audiologist-Hearing Aid Fitter in Oklahoma

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 2, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• 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.