Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

John Michael Sullivan, PHD

Individual provider Psychologist · NPI 1538576764

John Michael Sullivan, PHD is a Clinical Psychologist in Newport News, Virginia. Qualified in 1976, 50 years ago. Practices with Michael S. Weissman, Ph D , Ltd, a 16-clinician group and accepts Medicare assignment. Licensed in Virginia.

Years since qualifying
50
Licensed in
VA
In the registry since
2014
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 Partly verified

Some contact details are missing from the federal record.

One Old Oyster Point Rd
Newport News, VA 23602 Not confirmed with CMS for 12 years — call before visiting
Phone: (757) 969-6848
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 0810004303 (VA)

Record details

NPI number1538576764
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedJuly 21, 2014
Last updated in NPPESJuly 21, 2014

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1976 (50 years in practice)
Group practice Michael S. Weissman, Ph.D.,Ltd — 16 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Colleagues at Michael S. Weissman, Ph D , Ltd

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 16 clinicians in the practice; 12 are shown here.

Other providers in Newport News