DR. JACQUELYN ASHLEY CORVAN HELMER PHD
NPI 1255820221
Psychologist - Clinical in La Mesa, CA

Q: What is Jacquelyn Corvan Helmer's NPI number?

The NPI number for Jacquelyn Corvan Helmer is 1255820221. It was assigned to this individual provider in the NPPES registry on May 5, 2018. The provider is also known as Dr. Jacquelyn Corvan Phd.

Q: What is Jacquelyn Corvan Helmer's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Q: Is Jacquelyn Corvan Helmer enrolled in Medicare?

No. Jacquelyn Corvan Helmer has opted out of Medicare through May 12, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

Active since May 05, 2018Opted out of Medicare · through May 12, 2028

5360 JACKSON DR STE 220-C, LA MESA, CA 91942(619) 439-8479(619) 916-2457 Get Directions Write a Review

NPPES record last updated: April 16, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Apr 16, 2026, Mar 24, 2026, Oct 24, 2023 and 1 more (4 updates tracked since 2018).

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About Dr. Jacquelyn Ashley Corvan Helmer Phd NPPES

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

DR. JACQUELYN ASHLEY CORVAN HELMER PHD (NPI 1255820221) is an individual clinical provider in La Mesa, California, licensed in California (PSY28014) and active in the NPI registry since May 2018. She has opted out of Medicare through May 12, 2028.

NPPES Registry Identity

NPI1255820221

Entity TypeIndividualFemale

Primary Taxonomy103TC0700X

Provider Legal NameDR. JACQUELYN ASHLEY CORVAN HELMERCredential: PHD

Location Address5360 JACKSON DR STE 220-CLa Mesa, CA 91942-6002

Mailing Address5360 Jackson Dr Ste 220-cLa Mesa, CA 91942-6002 · (619) 439-8479 · Fax (619) 916-2457

Phone(619) 439-8479

Fax(619) 916-2457

Sole ProprietorNo

Enumeration DateMay 5, 2018

Last NPPES UpdateApril 16, 20264 updates tracked since enumeration

NPPES CertifiedApril 16, 2026

✔ NPI 1255820221 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in CA · PSY28014

Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

5360 JACKSON DR STE 220-C, La Mesa, CA 91942

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Other Names 1

Professional Name (2)Dr. Jacquelyn Corvan Phd

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Jacquelyn Ashley Corvan Helmer Phd has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from May 12, 2026 through May 12, 2028.

Opt-Out Effective DateMay 12, 2026

Opt-Out In Effect ThroughMay 12, 2028Opt-out affidavits renew automatically every two years unless cancelled

Other Providers at the Same Location NPPES 2

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

DR. JOHN ROBERT-CLYDE HELMER PSYD, LCSW

Psychologist (Clinical)

5360 JACKSON DR STE 220-C
LA MESA, CA 91942

San Diego County (619) 439-8479

DR JOHN HELMER PSYCHOLOGIST APC

Psychologist (Clinical)

5360 JACKSON DR STE 220-C
LA MESA, CA 91942

San Diego County (619) 439-8479

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 Jacquelyn Corvan Helmer's NPI number?

The NPI number for Jacquelyn Corvan Helmer is 1255820221. It was assigned to this individual provider in the NPPES registry on May 5, 2018. The provider is also known as Dr. Jacquelyn Corvan Phd.

Where is Jacquelyn Corvan Helmer located?

Jacquelyn Corvan Helmer practices at 5360 Jackson Dr Ste 220-C, La Mesa, CA 91942. The listed phone number is (619) 439-8479.

What is Jacquelyn Corvan Helmer's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Jacquelyn Corvan Helmer enrolled in Medicare?

No. Jacquelyn Corvan Helmer has opted out of Medicare through May 12, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

When was this NPI record last updated?

The NPPES record for Jacquelyn Corvan Helmer was last updated on April 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.