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

Mr. Mark Peder Christiansen, MD

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1821108218

Mr. Mark Peder Christiansen, MD is an Endocrinology, Diabetes & Metabolism Physician in Walnut Creek, California. Works from 2 locations. Licensed in California.

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

2405 Shadelands Dr Ste 300
Walnut Creek, CA 94598-5906
Phone: (925) 939-8585
Show map & directions

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

Additional practice locations (1)

  • 5725 W Las Positas Blvd, Pleasanton, CA 94588-4007 — (925) 463-1400

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence G62892 (CA)

Record details

NPI number1821108218
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 30, 2006
Last updated in NPPESJune 23, 2021
Certification dateJune 23, 2021

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