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

RUTH OPPENHEIMER
NPI 1932062619
Marriage & Family Therapist in Castro Valley, CA

Q: What is Ruth Oppenheimer's NPI number?

The NPI number for Ruth Oppenheimer is 1932062619. It was assigned to this individual provider in the NPPES registry on December 8, 2025.

Q: What is Ruth Oppenheimer's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

Q: When was this NPI record last updated?

The NPPES record for Ruth Oppenheimer was last updated on July 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 29 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 December 08, 2025

20283 SANTA MARIA AVE UNIT 2944, CASTRO VALLEY, CA 94546(510) 766-1064 Get Directions Write a Review

NPPES record last updated: July 21, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 21, 2026, Dec 8, 2025 (2 updates tracked since 2025).

On this page

About Ruth Oppenheimer NPPES

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

RUTH OPPENHEIMER (NPI 1932062619) is an individual marriage & family therapist in Castro Valley, California, licensed in California (164535) and active in the NPI registry since December 2025.

NPPES Registry Identity

NPI1932062619

Entity TypeIndividual

Primary Taxonomy106H00000X

Provider Legal NameRUTH OPPENHEIMER

Location Address20283 SANTA MARIA AVE UNIT 2944Castro Valley, CA 94546-5035

Mailing Address20283 Santa Maria Ave Unit 2944Castro Valley, CA 94546-5035

Phone(510) 766-1064

Sole ProprietorNo

Enumeration DateDecember 8, 2025

Last NPPES UpdateJuly 21, 20262 updates tracked since enumeration

NPPES CertifiedJuly 21, 2026

✔ NPI 1932062619 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyMarriage & Family TherapistBehavioral Health & Social Service Providers

Taxonomy Code106H00000X

License✔ Licensed in CA · 164535

Definition

A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups.

20283 SANTA MARIA AVE UNIT 2944, Castro Valley, CA 94546

Open in Google Maps ↗

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 Ruth Oppenheimer's NPI number?

The NPI number for Ruth Oppenheimer is 1932062619. It was assigned to this individual provider in the NPPES registry on December 8, 2025.

Where is Ruth Oppenheimer located?

Ruth Oppenheimer practices at 20283 Santa Maria Ave Unit 2944, Castro Valley, CA 94546. The listed phone number is (510) 766-1064.

What is Ruth Oppenheimer's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

When was this NPI record last updated?

The NPPES record for Ruth Oppenheimer was last updated on July 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 29 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.