Provider Profile

William Holland, PhD

Unclaimed Profile

About Dr. Holland

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Specialty

Psychologist — Clinical (Primary)

Credentials & Licensing

NY license028118
NPI1265373203
NPI issued04/03/2026

License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.

Common questions

What kind of doctor is Dr. Holland?

Dr. Holland is a psychologist in New York, NY. That is the designation recorded for this NPI in the federal registry, where it is listed as “Psychologist — Clinical”.

NPI registry

What is Dr. Holland's address?

Dr. Holland is listed at 300 Central Park W Apt 1C, New York, NY 10024. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

How can I make an appointment with Dr. Holland?

The number on file is (917) 848-0305. Guide.md cannot book appointments or pass on messages — please call the office directly.

NPI registry

What is the NPI for Dr. Holland?

Dr. Holland's National Provider Identifier is 1265373203. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.

NPI registry

Is Dr. Holland's profile verified?

Not yet. This profile is built from public federal data and has not been confirmed by Dr. Holland. If this is you, claiming it is free.

Guide.md

Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.