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DR. WILLIAM MAFFITT MCDONALD II MD
NPI 1235629197
Internal Medicine - Geriatric Medicine in New York, NY

Active since May 16, 2018Opted out of Medicare · through Oct 3, 2026
100/100
CMS Quality Rating
935 PARK AVE, NEW YORK, NY 10028(646) 883-6762(646) 687-5880 Get Directions Write a Review

NPPES record last updated: July 4, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 4, 2025, Apr 23, 2021, May 16, 2018 (3 updates tracked since 2018).

About Dr. William Maffitt Mcdonald Ii Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. WILLIAM MAFFITT MCDONALD II MD (NPI 1235629197) is an individual geriatric medicine provider in New York, New York, licensed in New York (324157) and active in the NPI registry since May 2018. He has opted out of Medicare through October 3, 2026 and remains eligible to order and refer.

NPPES Registry Identity

NPI1235629197
Entity TypeIndividualMale
Primary Taxonomy207RG0300X
Provider Legal NameDR. WILLIAM MAFFITT MCDONALD IICredential: MD
Location Address935 PARK AVENew York, NY 10028-0212
Mailing Address935 Park AveNew York, NY 10028-0212 · (646) 883-6762 · Fax (646) 687-5880
Phone(646) 883-6762
Fax(646) 687-5880
Sole ProprietorNo
Enumeration DateMay 16, 2018
Last NPPES UpdateJuly 4, 20253 updates tracked since enumeration
NPPES CertifiedJuly 4, 2025
✔ NPI 1235629197 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RG0300X
License✔ Licensed in NY · 324157
Definition
An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.
Also ListedInternal MedicineTaxonomy 207R00000X · License 67609 (CT)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
935 PARK AVE, New York, NY 10028
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. William Maffitt Mcdonald Ii Md has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from October 3, 2024 through October 3, 2026.

Opt-Out Effective DateOctober 3, 2024
Opt-Out In Effect ThroughOctober 3, 2026Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
95 services65 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
56 services25 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
37 services35 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
29 services29 patients
Advance care planning, first 30 minutes 99497
Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.
19 services19 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
15 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10028 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$198.19 typical visit price
range $65.69 – $198.19
Typical copayment $49.54 (range $16.42 – $49.54)
Most-billed visit code 99205
Established Patient
$114.88 typical visit price
range $21.20 – $160.66
Typical copayment $28.72 (range $5.30 – $40.16)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

100/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality86.8
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

PARK AVENUE ORTHODONTICS
Dentist (Orthodontics and Dentofacial Orthopedics)
935 PARK AVE, SUITE 102
NEW YORK, NY 10028
New York County (212) 452-2777
DOMINICK GOLIO M.D., P.C.
Plastic Surgery
935 PARK AVE
NEW YORK, NY 10028
New York County (305) 534-0121
DR. KATE MCGILLOWAY DMD
Dentist (Orthodontics and Dentofacial Orthopedics)
935 PARK AVE, SUITE 102
NEW YORK, NY 10028
New York County (212) 452-2777
HARRY REISS, M.D. P.C.
Psychiatry & Neurology (Psychiatry)
935 PARK AVE, 1A
NEW YORK, NY 10028
New York County (212) 535-8529

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Mcdonald's NPI number?

The NPI number for William Mcdonald is 1235629197. It was assigned to this individual provider in the NPPES registry on May 16, 2018.

Where is William Mcdonald located?

William Mcdonald practices at 935 Park Ave, New York, NY 10028. The listed phone number is (646) 883-6762.

What is William Mcdonald's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

Is William Mcdonald enrolled in Medicare?

No. William Mcdonald has opted out of Medicare through October 3, 2026. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for William Mcdonald was last updated on July 4, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.