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

Dr. William J McAllister Jr., MD

Individual provider Internal Medicine Physician · NPI 1821072646

Dr. William J McAllister Jr., MD is an Internal Medicine Physician in Corte Madera, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2005
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

21 Tamal Vista Blvd Ste 110
Corte Madera, CA 94925-1130
Phone: (415) 924-5010
Fax: (415) 924-5210
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence G18899 (CA)

Record details

NPI number1821072646
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedDecember 5, 2005
Last updated in NPPESFebruary 13, 2017

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