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

Dr. Mark Yarwood Johnson, MD

Individual provider Gastroenterology Physician · NPI 1861421372

Dr. Mark Yarwood Johnson, MD is a Gastroenterology Physician in Chula Vista, 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

480 4th Ave Ste 506
Chula Vista, CA 91910-4410
Phone: (619) 585-0313
Fax: (619) 585-0037
Show map & directions

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

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence G28163 (CA)

Record details

NPI number1861421372
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 30, 2006
Last updated in NPPESOctober 4, 2007

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