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

Cynthia Joy Cotharn, MD

Individual provider Addiction Medicine (Internal Medicine) Physician · NPI 1669049805

Cynthia Joy Cotharn, MD is an Addiction Medicine (Internal Medicine) Physician in Marina del Rey, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2021
Specialties on file
3
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

4325 Glencoe Ave Unit 10552
Marina del Rey, CA 90292
Phone: (310) 489-9985
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence G82137 (CA)
Addiction Medicine (Internal Medicine) Physician Taxonomy 207RA0401X · Licence G82137 (CA)
Occupational Medicine Physician Taxonomy 2083X0100X · Licence G82137 (CA)

Record details

NPI number1669049805
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 7, 2021
Last updated in NPPESJune 7, 2021
Certification dateJune 7, 2021