Naia McMillan-Castanares

Primary specialty

Sleep Medicine (Internal Medicine) PhysicianTaxonomy code 207RS0012X

License

4301513679 Issued in MI

Practice address

1500 E Medical Center Dr
Ann Arbor, MI 48109-5000

Phone

(734) 936-9068

NPI assigned

Jun 27, 2021

Last updated

Jul 11, 2025By the provider in NPPES

Sex

Female

Sole proprietor

No

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 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

State licenses

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

{
    "created_epoch": "1624752000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1752192000000",
    "number": "1558931196",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1500 E MEDICAL CENTER DR",
            "city": "ANN ARBOR",
            "state": "MI",
            "postal_code": "481095000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1500 E MEDICAL CENTER DR",
            "city": "ANN ARBOR",
            "state": "MI",
            "postal_code": "481095000",
            "telephone_number": "734-936-9068"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MCMILLAN-CASTANARES",
        "first_name": "NAIA",
        "name_prefix": "Dr.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-06-27",
        "last_updated": "2025-07-11",
        "certification_date": "2025-07-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RS0012X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Sleep Medicine",
            "state": "MI",
            "license": "4301513679",
            "primary": true
        },
        {
            "code": "2080S0012X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Sleep Medicine",
            "state": "MI",
            "license": "4301513679",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Erin McMahon
• Laurence F McMahon, MD
• Mary Brenna McMahon, LMSW
• Susan Marie McManus, LRT, RPSGT
• Lawrence J McMaster, DO
• Kale Brent McMillan, MD, DDS
• Tracy Marie McMillon, LMSW
• Marc S McMorris, MD
• Lisa Marie McMullen, PA-C
• Quentin R McMullen, MD

• Sleep Medicine (Internal Medicine) Physician in Ann Arbor, MI
• Providers in Ann Arbor, MI by specialty
• Sleep Medicine (Internal Medicine) Physician in Michigan

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 11, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.