Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. William Maffitt McDonald II, MD

Individual provider Internal Medicine Physician · NPI 1235629197

Dr. William Maffitt McDonald II, MD is an Internal Medicine Physician in New York, New York. Licensed in Connecticut and New York. Registered with an NPI since 2018.

Licensed in
CT, NY
In the registry since
2018
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

935 Park Ave
New York, NY 10028-0212
Phone: (646) 883-6762
Fax: (646) 687-5880
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Specialties & licences

Geriatric Medicine (Internal Medicine) Physician (primary) Taxonomy 207RG0300X · Licence 324157 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence 67609 (CT)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1235629197
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 16, 2018
Last updated in NPPESJuly 4, 2025
Certification dateJuly 4, 2025

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