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

Dr. William James Greene, MD

Individual provider Neurology Physician · NPI 1396189791

Dr. William James Greene, MD is a Psychiatry in Modesto, California. Qualified in 2013, 13 years ago. Practices as a sole proprietor, works from 4 locations and accepts Medicare assignment. Licensed in California, Montana and Oregon.

Years since qualifying
13
Licensed in
CA, MT, OR
In the registry since
2013
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1501 Claus Rd
Modesto, CA 95355-9711
Phone: (209) 579-5628
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 915 Highland Blvd, Bozeman, MT 59715-6902 — (406) 414-5000
  • 2801 N Gantenbein Ave, Portland, OR 97227-1623 — (503) 413-8949
  • 2211 Ne 139th St, Vancouver, WA 98686-2742 — (503) 413-8949

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence A149842 (CA)
Neurology Physician Taxonomy 2084N0400X · Licence MD221600 (OR)
Psychiatry Physician Taxonomy 2084P0800X · Licence MED-PHYS-LIC-145711 (MT)

Record details

NPI number1396189791
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 29, 2013
Last updated in NPPESApril 9, 2025
Certification dateApril 9, 2025
Mailing address220 Standiford Ave Ste F, Modesto, CA 95350-1159

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolOTHER
Graduated 2013 (13 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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