1. Home
  2. Directory
  3. California
  4. Daly City
  5. Counselor
  6. NPI Profile

DR. DAVID TJAHJONO
NPI 1619808201
Counselor in Daly City, CA

Active since May 25, 2026
1450 SOUTHGATE AVE APT 103, DALY CITY, CA 94015(628) 666-7516 Get Directions Write a Review

NPPES record last updated: May 25, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. David Tjahjono NPPES

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

DR. DAVID TJAHJONO (NPI 1619808201) is an individual counselor in Daly City, California, licensed in California (0-543-497-2) and active in the NPI registry since May 2026.

NPPES Registry Identity

NPI1619808201
Entity TypeIndividualMale
Primary Taxonomy101Y00000X
Provider Legal NameDR. DAVID TJAHJONO
Location Address1450 SOUTHGATE AVE APT 103Daly City, CA 94015-4019
Mailing Address1450 Southgate Ave Apt 103Daly City, CA 94015-4019 · (628) 666-7516
Phone(628) 666-7516
Sole ProprietorYes
Enumeration DateMay 25, 2026
NPPES CertifiedMay 25, 2026
✔ NPI 1619808201 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselorBehavioral Health & Social Service Providers
Taxonomy Code101Y00000X
License✔ Licensed in CA · 0-543-497-2
Definition
A provider who is trained and educated in the performance of behavior health services through interpersonal communications and analysis. Training and education at the specialty level usually requires a master's degree and clinical experience and supervision for licensure or certification.
1450 SOUTHGATE AVE APT 103, Daly City, CA 94015
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 David Tjahjono's NPI number?

The NPI number for David Tjahjono is 1619808201. It was assigned to this individual provider in the NPPES registry on May 25, 2026.

Where is David Tjahjono located?

David Tjahjono practices at 1450 Southgate Ave Apt 103, Daly City, CA 94015. The listed phone number is (628) 666-7516.

What is David Tjahjono's specialty?

The primary specialty registered for this NPI is Counselor with taxonomy code 101Y00000X.

When was this NPI record last updated?

The NPPES record for David Tjahjono was last updated on May 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.