William Maffitt McDonald II, MD

Primary specialty

Geriatric Medicine (Internal Medicine) PhysicianTaxonomy code 207RG0300X

License

324157 Issued in NY

Practice address

935 Park Ave
New York, NY 10028-0212

Phone

(646) 883-6762

Fax

(646) 687-5880

NPI assigned

May 16, 2018

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

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.

Opted out of Medicare

Yes, effective Oct 3, 2024 through Oct 3, 2026

Merit-based Incentive Payment System (MIPS)

Final score

100 of 100Reported as apm

Quality

85.32

Promoting interoperability

100

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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

{
    "created_epoch": "1526428800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1751587200000",
    "number": "1235629197",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "935 PARK AVE",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100280212",
            "telephone_number": "646-883-6762",
            "fax_number": "646-687-5880"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "935 PARK AVE",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100280212",
            "telephone_number": "646-883-6762",
            "fax_number": "646-687-5880"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MCDONALD",
        "first_name": "WILLIAM",
        "middle_name": "MAFFITT",
        "name_prefix": "Dr.",
        "name_suffix": "II",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2018-05-16",
        "last_updated": "2025-07-04",
        "certification_date": "2025-07-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CT",
            "license": "67609",
            "primary": false
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207RG0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Geriatric Medicine",
            "state": "NY",
            "license": "324157",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Luke Albert McDonald, MA, CCC-SLP, TSSLD
• Melanie Grenald McDonald, DPT
• Patricia McDonald, DSW, CASAC
• Phillip Bruce McDonald, NP
• Steven Andrew McDonald, MD
• Danielle Constance McDonaugh, LCSW
• Brendan McDonnell, MD PHD
• Caraline Helen McDonnell
• Diana Ellen McDonnell, NP
• Glynnis A McDonnell, PHD

• Geriatric Medicine (Internal Medicine) Physician in New York, NY
• Providers in New York, NY by specialty
• Geriatric Medicine (Internal Medicine) Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 4, 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; Opt Out Affidavits.
• 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.