Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

JOANNA CHEN PHD
NPI 1811728462
Psychologist - Clinical in San Diego, CA

Q: What is Joanna Chen's NPI number?

The NPI number for Joanna Chen is 1811728462. It was assigned to this individual provider in the NPPES registry on August 13, 2024.

Q: What is Joanna Chen's specialty?

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

Q: Is Joanna Chen enrolled in Medicare?

No. Joanna Chen has opted out of Medicare through August 7, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

Q: When was this NPI record last updated?

The NPPES record for Joanna Chen was last updated on July 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 57 days 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 13, 2024Opted out of Medicare · through Aug 7, 2027

1650 GARNET AVE # 1042, SAN DIEGO, CA 92109(858) 215-3338 Get Directions Write a Review

NPPES record last updated: July 7, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Jul 7, 2026, Aug 13, 2024 (2 updates tracked since 2024).

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About Joanna Chen Phd NPPES

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

JOANNA CHEN PHD (NPI 1811728462) is an individual clinical provider in San Diego, California, licensed in California (35213) and active in the NPI registry since August 2024. She has opted out of Medicare through August 7, 2027.

NPPES Registry Identity

NPI1811728462

Entity TypeIndividualFemale

Primary Taxonomy103TC0700X

Provider Legal NameJOANNA CHENCredential: PHD

Location Address1650 GARNET AVE # 1042San Diego, CA 92109-3116

Mailing Address1650 Garnet Ave # 1042San Diego, CA 92109-3116 · (858) 215-3338

Phone(858) 215-3338

Sole ProprietorNo

Enumeration DateAugust 13, 2024

Last NPPES UpdateJuly 7, 20262 updates tracked since enumeration

NPPES CertifiedJuly 7, 2026

✔ NPI 1811728462 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 · 35213

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.

1650 GARNET AVE # 1042, San Diego, CA 92109

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Joanna Chen 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 August 7, 2025 through August 7, 2027.

Opt-Out Effective DateAugust 7, 2025

Opt-Out In Effect ThroughAugust 7, 2027Opt-out affidavits renew automatically every two years unless cancelled

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 Joanna Chen's NPI number?

The NPI number for Joanna Chen is 1811728462. It was assigned to this individual provider in the NPPES registry on August 13, 2024.

Where is Joanna Chen located?

Joanna Chen practices at 1650 Garnet Ave # 1042, San Diego, CA 92109. The listed phone number is (858) 215-3338.

What is Joanna Chen's specialty?

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

Is Joanna Chen enrolled in Medicare?

No. Joanna Chen has opted out of Medicare through August 7, 2027. 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 Joanna Chen was last updated on July 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 57 days 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.