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

William James Collins, MD

Individual provider Internal Medicine Physician · NPI 1659689032

William James Collins, MD is an Internal Medicine in Stanford, California. Graduated from University of California, San Francisco School of Medicine in 2010, 16 years ago. Practices with Stanford Health Care, a 3,085-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
16
Trained at
University of California, San Francisco School of Medicine
Licensed in
CA
In the registry since
2010
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

300 Pasteur Dr
Stanford, CA 94305-2200
Phone: (650) 723-4000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 8700 Beverly Blvd, West Hollywood, CA 90048-1804 — (858) 552-8585

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A117687 (CA)

Record details

NPI number1659689032
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 19, 2010
Last updated in NPPESApril 18, 2024
Certification dateApril 18, 2024
Mailing address300 Pasteur Dr, Stanford, CA 94305-2200

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF CALIFORNIA, SAN FRANCISCO SCHOOL OF MEDICINE
Graduated 2010 (16 years in practice)
Group practice Stanford Health Care — 3085 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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