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

Carl W Winterstein, MD

Individual provider Internal Medicine Physician · NPI 1235207432

Carl W Winterstein, MD is an Internal Medicine Physician in Palo Alto, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
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

240 Leland Ave
Palo Alto, CA 94306-1125
Phone: (650) 326-6244
Fax: (650) 566-9227
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 G24124 (CA)

Record details

NPI number1235207432
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 4, 2006
Last updated in NPPESJuly 8, 2007

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