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

Jay W Marks, MD

Individual provider Gastroenterology Physician · NPI 1003871914

Jay W Marks, MD is a Gastroenterology Physician in Los Angeles, California. Practices as a sole proprietor. 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.

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Practice location Address checks out

8635 W 3rd St Ste #880
Los Angeles, CA 90048-6101
Phone: (323) 469-4499
Show map & directions

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

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence G21318 (CA)

Record details

NPI number1003871914
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 20, 2006
Last updated in NPPESFebruary 4, 2013

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