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ZACHARY KALKANIS
NPI 1285560029
Social Worker in Oakland, CA

Active since June 19, 2026
401 GRAND AVE, OAKLAND, CA 94610(415) 474-7310(510) 257-1821 Get Directions Write a Review

NPPES record last updated: June 19, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Zachary Kalkanis NPPES

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

ZACHARY KALKANIS (NPI 1285560029) is an individual social worker in Oakland, California, licensed in California (ASW135539) and active in the NPI registry since June 2026.

NPPES Registry Identity

NPI1285560029
Entity TypeIndividualMale
Primary Taxonomy104100000X
Provider Legal NameZACHARY KALKANIS
Location Address401 GRAND AVEOakland, CA 94610-5054
Mailing AddressPo Box 64204Los Angeles, CA 90064-0204 · (510) 640-4001
Phone(415) 474-7310
Fax(510) 257-1821
Sole ProprietorNo
Enumeration DateJune 19, 2026
NPPES CertifiedJune 19, 2026
✔ NPI 1285560029 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
License✔ Licensed in CA · ASW135539
Definition
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
401 GRAND AVE, Oakland, CA 94610
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Other Providers at the Same Location NPPES 20

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

MS. PREETI BHARDWAJ MSW
Social Worker
401 GRAND AVE, SUITE 200
OAKLAND, CA 94610
Alameda County (510) 834-2443
MS. DONNA MOORE
Social Worker
401 GRAND AVE, SUITE 500
OAKLAND, CA 94610
Alameda County (510) 834-2443
MS. JULIA CATHERINE BAILEY
Social Worker
401 GRAND AVE, SUITE 200
OAKLAND, CA 94610
Alameda County (510) 834-4006
REGAN HORNER REYNA
Case Manager/Care Coordinator
401 GRAND AVE, SUITE 500
OAKLAND, CA 94610
Alameda County (510) 834-2443
FELTON INSTITUTE
Community/Behavioral Health
401 GRAND AVE
OAKLAND, CA 94610
Alameda County (510) 844-8244
MR. GARY THOMSEN MFT
Marriage & Family Therapist
401 GRAND AVE, SUITE 200
OAKLAND, CA 94610
Alameda County (510) 834-4006
DR. VERNITA A MARSH PH.D.
Psychologist (Clinical)
401 GRAND AVE, SUITE 380
OAKLAND, CA 94610
Alameda County (510) 420-4555
DR. SOPHIA CANDIDA FERREIRA DODGE PH.D., LP, NCSP
Psychologist
401 GRAND AVE
OAKLAND, CA 94610
Alameda County (510) 394-2240

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 Zachary Kalkanis's NPI number?

The NPI number for Zachary Kalkanis is 1285560029. It was assigned to this individual provider in the NPPES registry on June 19, 2026.

Where is Zachary Kalkanis located?

Zachary Kalkanis practices at 401 Grand Ave, Oakland, CA 94610. The listed phone number is (415) 474-7310.

What is Zachary Kalkanis's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

When was this NPI record last updated?

The NPPES record for Zachary Kalkanis was last updated on June 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 47 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.