Joanna Horowitz, MFT
Mental Health Counselor · Claremont, CA
Joanna Horowitz, MFT is a mental health counselor with a practice address in Claremont, California, and NPI 1356470843, issued on Mar 2, 2007. Check the license (California MFC17219, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Joanna Horowitz
- Credential
- MFT
- Primary taxonomy
- Mental Health Counselor 101YM0800X
- License number
- MFC17219 CA
Self-reported in NPPES; status is on the state search - Practice location
- 428 Harrison Ave, Claremont, CA 91711
- Phone
- (909) 625-5506
- Enumerated
- Mar 2, 2007
- Entity
- Type 1 · individual
Also registered at 428 Harrison Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Katharine Albert, M.S.W.Clinical Social Worker1700075280
- Susan Carter, PH.D.Marriage & Family Therapist1346458536
- Raquel Gonzales, MPH, RDRegistered Dietitian1841902046
- Taryn Kaminski, LMFTMarriage & Family Therapist1598127524
- Ann Morgan, PSY.D.Clinical Psychologist1619068269
Verify Joanna Horowitz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license MFC17219Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
23 mental health counselor records list a Claremont practice address
They are 23 of the 800 NPPES records with a Claremont practice address, and 35,738 mental health counselor records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 23 in Claremont → All 35,738 in California → Every provider in Claremont →
Other mental health counselor records in California
- Rita A Wilborne, MHRSSan Jose, CA1649315763
- Katie AabSalinas, CA1205257284
- Kayla Aanerud, B.A.Rio Linda, CA1649622101
- La Shaun AaronCamarillo, CA1740469717
- Tamika AaronInglewood, CA1245550284
- Tamara AasenCamarillo, CA1912255035
- Hanna AbaataSan Leandro, CA1659913572
- Analyn AbadSan Carlos, CA1467065946
- Edname AbadLemon Grove, CA1356647812
- Taliana AbadiSan Diego, CA1568260271
Common questions
What is Joanna Horowitz, MFT's NPI number?
Joanna Horowitz, MFT's National Provider Identifier (NPI) is 1356470843, issued on Mar 2, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Joanna Horowitz, MFT located?
The NPPES record lists a practice address at 428 Harrison Ave, Claremont, CA, 91711. Phone: (909) 625-5506. Providers update this record themselves, so call before visiting.
How can I verify Joanna Horowitz, MFT's license?
NPPES lists California license number MFC17219, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.