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

David Ryan, MD

Individual provider Psychiatry Physician · NPI 1689728198

David Ryan, MD is a Psychiatry Physician in Atascadero, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

10333 El Camino Real
Atascadero, CA 93422-5808
Phone: (805) 468-2188
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence G84327 (CA)

Record details

NPI number1689728198
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJanuary 22, 2007
Last updated in NPPESMarch 2, 2020
Certification dateMarch 2, 2020
Mailing address10333 El Camino Real, Atascadero, CA 93422-5808

Other providers in Atascadero