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

John Sivert Tendall, MD

Individual provider Family Medicine Physician · NPI 1427228253

John Sivert Tendall, MD is a Family Medicine Physician in Grass Valley, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2008
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

13473 Saffron Dr
Grass Valley, CA 95945
Phone: (530) 271-0279
Fax: (530) 645-1513
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 C33326 (CA)

Record details

NPI number1427228253
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMarch 7, 2008
Last updated in NPPESMarch 7, 2008
Mailing address13473 Saffron Drive, Grass Valley, CA 95945

Other providers in Grass Valley