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

ELIZA DROPKIN CASTANOS LMFT
NPI 1750956397
Marriage & Family Therapist in Oakland, CA

Active since May 25, 2021
4281 PIEDMONT AVE STE 3, OAKLAND, CA 94611(510) 853-6902 Get Directions Write a Review

NPPES record last updated: September 21, 2026. Verified against the NPPES registry weekly; last sync: September 27, 2026.

About Eliza Dropkin Castanos Lmft NPPES

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

ELIZA DROPKIN CASTANOS LMFT (NPI 1750956397) is an individual marriage & family therapist in Oakland, California, licensed in California (165012) and active in the NPI registry since May 2021.

NPPES Registry Identity

NPI1750956397
Entity TypeIndividualFemale
Primary Taxonomy106H00000X
Provider Legal NameELIZA DROPKIN CASTANOSCredential: LMFT
Location Address4281 PIEDMONT AVE STE 3Oakland, CA 94611-4713
Mailing Address4281 Piedmont Ave Ste 3Oakland, CA 94611-4713
Phone(510) 853-6902
Sole ProprietorYes
Enumeration DateMay 25, 2021
Last NPPES UpdateSeptember 21, 2026
NPPES CertifiedJune 25, 2026
✔ NPI 1750956397 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 · 165012
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.
4281 PIEDMONT AVE STE 3, Oakland, CA 94611
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Other Names 1

Former Name (1)Eliza Marhan Dropkin

Other Providers at the Same Location NPPES

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

MS. HELGA G COHEN M.A.
Marriage & Family Therapist
4281 PIEDMONT AVE STE 3
OAKLAND, CA 94611
Alameda County (510) 601-8404

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 Eliza Castanos's NPI number?

The NPI number for Eliza Castanos is 1750956397. It was assigned to this individual provider in the NPPES registry on May 25, 2021. The provider is also known as Eliza Marhan Dropkin.

Where is Eliza Castanos located?

Eliza Castanos practices at 4281 Piedmont Ave Ste 3, Oakland, CA 94611. The listed phone number is (510) 853-6902.

What is Eliza Castanos'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 Eliza Castanos was last updated on September 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.