Nathan Michael Ryan, MD

Primary specialty

Student in an Organized Health Care Education/Training ProgramTaxonomy code 390200000X

Practice address

2800 Plymouth Rd
Ann Arbor, MI 48109-2801

Phone

(734) 647-2921

NPI assigned

Apr 9, 2026

Sex

Male

Sole proprietor

No

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 MI

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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

{
    "created_epoch": "1775692800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1775692800000",
    "number": "1679416382",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2800 PLYMOUTH RD",
            "address_2": "NCRC BLDG 35-1411",
            "city": "ANN ARBOR",
            "state": "MI",
            "postal_code": "481092801"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2800 PLYMOUTH RD",
            "city": "ANN ARBOR",
            "state": "MI",
            "postal_code": "481092801",
            "telephone_number": "734-647-2921"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "RYAN",
        "first_name": "NATHAN",
        "middle_name": "MICHAEL",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2026-04-09",
        "last_updated": "2026-04-09",
        "certification_date": "2026-04-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Irene Anne Ryan, PA
• Kaitlyn Elizabeth Ryan, MD
• Kelly Ann Ryan, PHD
• Michael Ryan, MD
• Michael John Ryan, M.D.
• Patricia Ellen Ryan, M.D.
• Russell James Hubbard Ryan, M.D.
• Hannah Rybski
• Sydney Ryckman, MD
• Charity Yoonhee Ryder

• Student in an Organized Health Care Education/Training Program in Ann Arbor, MI
• Providers in Ann Arbor, MI by specialty
• Student in an Organized Health Care Education/Training Program in Michigan

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 9, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.