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

Dr. William J Marks, PHD

Individual provider Psychologist · NPI 1659650232

Dr. William J Marks, PHD is a Psychologist in Honolulu, Hawaii. Works from 2 locations. Licensed in Hawaii.

Licensed in
HI
In the registry since
2011
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

1441 Kapiolani Blvd
Honolulu, HI 96814-4402
Phone: (808) 432-7600
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1314 S King St Ste 864, Honolulu, HI 96814-1943 — (808) 596-8899

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence PSY 1266 (HI)

Record details

NPI number1659650232
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedAugust 12, 2011
Last updated in NPPESJune 1, 2021
Certification dateJune 1, 2021
Mailing address1441 Kapiolani Blvd, Honolulu, HI 96814-4402

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