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JOHNA KATHLEEN HAMMAKER R1374251219
NPI 1821628256
Counselor - Addiction (Substance Use Disorder) in Fullerton, CA

Active since January 24, 2020
771 W ORANGETHORPE AVE, FULLERTON, CA 92832(714) 879-0929(714) 578-2960 Get Directions Write a Review

NPPES record last updated: October 17, 2023. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Oct 23, 2023, Oct 17, 2023, Nov 2, 2021 and 4 more (7 updates tracked since 2020).

About Johna Kathleen Hammaker R1374251219 NPPES

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

JOHNA KATHLEEN HAMMAKER R1374251219 (NPI 1821628256) is an individual addiction (substance use disorder) provider in Fullerton, California, licensed in California (CI40501023) and active in the NPI registry since January 2020.

NPPES Registry Identity

NPI1821628256
Entity TypeIndividualFemale
Primary Taxonomy101YA0400X
Provider Legal NameJOHNA KATHLEEN HAMMAKERCredential: R1374251219
Location Address771 W ORANGETHORPE AVEFullerton, CA 92832-2806
Mailing Address771 W Orangethorpe AveFullerton, CA 92832-2806 · (714) 879-0929 · Fax (714) 578-2960
Phone(714) 879-0929
Fax(714) 578-2960
Sole ProprietorYes
Enumeration DateJanuary 24, 2020
Last NPPES UpdateOctober 17, 20237 updates tracked since enumeration
NPPES CertifiedOctober 17, 2023
✔ NPI 1821628256 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers
Taxonomy Code101YA0400X
License✔ Licensed in CA · CI40501023
771 W ORANGETHORPE AVE, Fullerton, CA 92832
Open in Google Maps ↗

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.

RICKY BURNELL
Counselor (Addiction (Substance Use Disorder))
771 W ORANGETHORPE AVE
FULLERTON, CA 92832
Orange County (714) 879-0929
MEDHANKARA THERO GALKULAME
Counselor (Addiction (Substance Use Disorder))
771 W ORANGETHORPE AVE
FULLERTON, CA 92832
Orange County (714) 879-0929
LAURA AVINA R1238020916
Counselor (Addiction (Substance Use Disorder))
771 W ORANGETHORPE AVE
FULLERTON, CA 92832
Orange County (714) 879-0929
MICHAEL MORGAN
Counselor (Addiction (Substance Use Disorder))
771 W ORANGETHORPE AVE
FULLERTON, CA 92832
Orange County (714) 879-0929
CRAIG CRANE
Counselor (Addiction (Substance Use Disorder))
771 W ORANGETHORPE AVE
FULLERTON, CA 92832
Orange County (714) 879-2741
ADRIANNA MAE ESCOBEDO
Counselor
771 W ORANGETHORPE AVE
FULLERTON, CA 92832
Orange County (714) 879-0929
TISHA ELIZABETH MILLER CADCII
Counselor (Addiction (Substance Use Disorder))
771 W ORANGETHORPE AVE
FULLERTON, CA 92832
Orange County (714) 879-0929
ANDREW HOLLER
Counselor (Addiction (Substance Use Disorder))
771 W ORANGETHORPE AVE
FULLERTON, CA 92832
Orange County (714) 879-0929

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 Johna Hammaker's NPI number?

The NPI number for Johna Hammaker is 1821628256. It was assigned to this individual provider in the NPPES registry on January 24, 2020.

Where is Johna Hammaker located?

Johna Hammaker practices at 771 W Orangethorpe Ave, Fullerton, CA 92832. The listed phone number is (714) 879-0929.

What is Johna Hammaker's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

When was this NPI record last updated?

The NPPES record for Johna Hammaker was last updated on October 17, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.