DAVID RYAN M.D.
NPI 1689728198
Psychiatry & Neurology - Psychiatry in Atascadero, CA

Q: What is David Ryan's NPI number?

The NPI number for David Ryan is 1689728198. It was assigned to this individual provider in the NPPES registry on January 22, 2007.

Q: What is David Ryan's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Q: When was this NPI record last updated?

The NPPES record for David Ryan was last updated on March 2, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since January 22, 2007

10333 EL CAMINO REAL, ATASCADERO, CA 93422(805) 468-2188 Get Directions Write a Review

NPPES record last updated: March 2, 2020. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Mar 2, 2020, Nov 18, 2016 (2 updates tracked since 2016).

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About David Ryan M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DAVID RYAN M.D. (NPI 1689728198) is an individual psychiatry provider in Atascadero, California, licensed in California (G84327) and active in the NPI registry since January 2007.

NPPES Registry Identity

NPI1689728198

Entity TypeIndividualMale

Primary Taxonomy2084P0800X

Provider Legal NameDAVID RYANCredential: M.D.

Location Address10333 EL CAMINO REALAtascadero, CA 93422-5808

Mailing Address10333 El Camino RealAtascadero, CA 93422-5808

Phone(805) 468-2188

Sole ProprietorYes

Enumeration DateJanuary 22, 2007

Last NPPES UpdateMarch 2, 20202 updates tracked since enumeration

NPPES CertifiedMarch 2, 2020

✔ NPI 1689728198 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0800X

License✔ Licensed in CA · G84327

Definition

A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

10333 EL CAMINO REAL, Atascadero, CA 93422

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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

GIZELLA MARIA RAYMOND N.P., R.N.

Nurse Practitioner (Psychiatric/Mental Health)