Grayson Nathaniel Mynatt, DO

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

2024031283 Issued in MO

Practice address

4025 N Sheridan Rd
Chicago, IL 60613-2010

Phone

(773) 388-1600

NPI assigned

Jun 15, 2021

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in MO

Eligible to order & refer

• Part B services: No
• Medical equipment: Yes
• Home health: No
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Family Practice

Education

Lincoln Mem Univ, Debusk Col of Osteopathic Med, 2021

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Hospital & facility affiliations

• University of Missouri Health Care Hospital, Columbia, MO, CCN 260141

Merit-based Incentive Payment System (MIPS)

Final score

80.23 of 100Reported as group

Quality

58.17

Promoting interoperability

100

Improvement activities

40

Cost

75.92

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

Practice roles

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.

• Curators of the University of Missouri

  • General Acute Care Hospital
  • Columbia, MO
  • NPI 1699769901
  NPD (past)

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

• Curators of the University of Missouri

  • General Acute Care Hospital
  • Jefferson City, MO
  • NPI 1174597892
  Care Compare affiliation
• Curators of the University of Missouri

  • General Acute Care Hospital
  • Columbia, MO
  • NPI 1699769901
  Care Compare affiliation

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

{
    "created_epoch": "1623715200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1781654400000",
    "number": "1730757907",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4025 N SHERIDAN RD",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606132010",
            "telephone_number": "773-388-1600"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4025 N SHERIDAN RD",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606132010",
            "telephone_number": "773-388-1600"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "551 Veterans United Dr",
            "address_purpose": "LOCATION",
            "city": "Columbia",
            "state": "MO",
            "postal_code": "652018397",
            "country_code": "US",
            "telephone_number": "573-884-7733",
            "fax_number": "573-882-6228",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MYNATT",
        "first_name": "GRAYSON",
        "middle_name": "NATHANIEL",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-06-15",
        "last_updated": "2026-06-17",
        "certification_date": "2026-06-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "MO",
            "license": "2024031283",
            "primary": true
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "IL",
            "license": "036176984",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "MUDOCREFERRAL@direct.health.missouri.edu",
            "affiliation": "Y",
            "endpointDescription": "Endpoint is used to receive electronic continuity of care documents (C-CDA) for outpatient referrals",
            "affiliationName": "Curators of the University of Missouri",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "Direct",
            "address_1": "551 Veterans United Dr",
            "city": "Columbia",
            "state": "MO",
            "country_code": "US",
            "postal_code": "652018397",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Kaitlyn Myles
• Marquisha Myles, MD
• Steven Adam Myles, LCPC
• Ruben Joseph Mylvaganam, M.D.
• Myna Medical LTD
• Margaret Mynderse
• Michael Mynihan
• Magdalene Myrda, DPT
• Mark F Myren
• Frederick Myrick

• Family Medicine Physician in Chicago, IL
• Providers in Chicago, IL by specialty
• Family Medicine Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 17, 2026; 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.