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

Dr. Sarah Stark Lowenthal, MD

Individual provider Family Medicine Physician · NPI 1790813046

Dr. Sarah Stark Lowenthal, MD is a Family Medicine Physician in Mill Valley, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2007
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

655 Redwood Hwy Frontage Rd Ste 364
Mill Valley, CA 94941-3057
Phone: (415) 590-6150
Fax: (415) 578-3118
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence A80735 (CA)

Record details

NPI number1790813046
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedFebruary 28, 2007
Last updated in NPPESFebruary 19, 2019

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