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

Jay K. Harness, MD

Individual provider Surgery Physician · NPI 1477549426

Jay K. Harness, MD is a Surgery Physician in Orange, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1000 W La Veta Ave
Orange, CA 92868-4304
Phone: (714) 744-8601
Fax: (714) 744-8622
Show map & directions

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

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence G70155 (CA)

Record details

NPI number1477549426
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedSeptember 26, 2005
Last updated in NPPESDecember 1, 2008
Mailing addressPo Box 5942, Orange, CA 92863-5942

Other providers in Orange