DR. LESTER R RYAN M.D.
NPI 1487716718
Psychiatry & Neurology - Psychiatry in Fairfield, CA

Q: What is Lester Ryan's NPI number?

The NPI number for Lester Ryan is 1487716718. It was assigned to this individual provider in the NPPES registry on December 14, 2006.

Q: What is Lester 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 Lester Ryan was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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 December 14, 2006

3291 INWOOD PL, FAIRFIELD, CA 94534(707) 421-1198 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 23, 2026.

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About Dr. Lester R Ryan M.d. NPPES

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

DR. LESTER R RYAN M.D. (NPI 1487716718) is an individual psychiatry provider in Fairfield, California, licensed in California (A45767) and active in the NPI registry since December 2006.

NPPES Registry Identity

NPI1487716718

Entity TypeIndividualMale

Primary Taxonomy2084P0800X

Provider Legal NameDR. LESTER R RYANCredential: M.D.

Location Address3291 INWOOD PLFairfield, CA 94534-8332

Mailing Address3291 Inwood PlFairfield, CA 94534-8332

Phone(707) 421-1198

Sole ProprietorYes

Enumeration DateDecember 14, 2006

Last NPPES UpdateJuly 8, 2007

✔ NPI 1487716718 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 · A45767

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.

3291 INWOOD PL, Fairfield, CA 94534

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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Lester Ryan's NPI number?

The NPI number for Lester Ryan is 1487716718. It was assigned to this individual provider in the NPPES registry on December 14, 2006.

Where is Lester Ryan located?

Lester Ryan practices at 3291 Inwood Pl, Fairfield, CA 94534. The listed phone number is (707) 421-1198.

What is Lester Ryan's specialty?

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

When was this NPI record last updated?

The NPPES record for Lester Ryan was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.