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

James Roy Vasser, MD

Individual provider Cytopathology Physician · NPI 1417085960

James Roy Vasser, MD is a Cytopathology Physician in Vallejo, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
Specialties on file
2
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

300 Hospital Dr Dept OF Pathology
Vallejo, CA 94589-2574
Phone: (707) 554-5331
Fax: (707) 642-1095
Show map & directions

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

Specialties & licences

Cytopathology Physician (primary) Taxonomy 207ZC0500X · Licence A42628 (CA)
Anatomic Pathology & Clinical Pathology Physician Taxonomy 207ZP0102X · Licence A42628 (CA)

Record details

NPI number1417085960
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 28, 2007
Last updated in NPPESSeptember 11, 2025
Mailing address300 Hospital Drive, Department Of Pathology, Vallejo, CA 94589

Other providers in Vallejo