Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

William P Hayes, MD

Individual provider Psychiatry Physician · NPI 1881716801

William P Hayes, MD is a Psychiatry Physician in Princeton, New Jersey. Licensed in New Jersey. Registered with an NPI since 2007.

Licensed in
NJ
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

707 Alexander Rd Bldg 2 Ste 202
Princeton, NJ 08540
Phone: (609) 419-0400
Fax: (609) 419-9200
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 25MA04782500 (NJ)

Record details

NPI number1881716801
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 3, 2007
Last updated in NPPESJuly 8, 2007

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