DR. HELEN CLYATT YOST M.D.
NPI 1699023127
General Practice in Vallecito, CA

Q: What is Helen Yost's NPI number?

The NPI number for Helen Yost is 1699023127. It was assigned to this individual provider in the NPPES registry on August 15, 2012.

Q: What is Helen Yost's specialty?

The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.

Q: When was this NPI record last updated?

The NPPES record for Helen Yost was last updated on August 15, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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 August 15, 2012

4216 PARROTTS FERRY RD, VALLECITO, CA 95251(209) 736-9456 Get Directions Write a Review

NPPES record last updated: August 15, 2012. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Helen Clyatt Yost M.d. NPPES

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

DR. HELEN CLYATT YOST M.D. (NPI 1699023127) is an individual general practice provider in Vallecito, California, licensed in California (G34591) and active in the NPI registry since August 2012.

NPPES Registry Identity

NPI1699023127

Entity TypeIndividualFemale

Primary Taxonomy208D00000X

Provider Legal NameDR. HELEN CLYATT YOSTCredential: M.D.

Location Address4216 PARROTTS FERRY RDVallecito, CA 95251

Mailing AddressPo Box 215Vallecito, CA 95251-0215 · (209) 736-9456

Phone(209) 736-9456

Sole ProprietorYes

Enumeration DateAugust 15, 2012

✔ NPI 1699023127 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyGeneral PracticeAllopathic & Osteopathic Physicians

Taxonomy Code208D00000X

License✔ Licensed in CA · G34591

Definition

A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. Source: National Uniform Claim Committee

4216 PARROTTS FERRY RD, Vallecito, CA 95251

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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 Helen Yost's NPI number?

The NPI number for Helen Yost is 1699023127. It was assigned to this individual provider in the NPPES registry on August 15, 2012.

Where is Helen Yost located?

Helen Yost practices at 4216 Parrotts Ferry Rd, Vallecito, CA 95251. The listed phone number is (209) 736-9456.

What is Helen Yost's specialty?

The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.

When was this NPI record last updated?

The NPPES record for Helen Yost was last updated on August 15, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.