Lyssabeth Mattoon, PH.D.
Clinical Psychologist · Merced, CA
Lyssabeth Mattoon, PH.D. is a clinical psychologist with a practice address in Merced, California, and NPI 1366632747, issued on Jul 31, 2007. Check the license (California PSY 25874, 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
- Lyssabeth Mattoon
- Credential
- PH.D.
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- PSY 25874 CA
Self-reported in NPPES; status is on the state search - Practice location
- 414 W 21St St, Merced, CA 95340
- Phone
- (209) 720-2960
- Enumerated
- Jul 31, 2007
- Record last updated
- Nov 16, 2018 (not updated in 8 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 12,647 in California → Look up another NPI →
Also registered at 414 W 21St St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Timothy Beach, PSY. D.Clinical Psychologist1427397702
- Jule Biesiada, PH.D.Clinical Neuropsychologist1467677872
- Karla Burgfeld, LMFTMarriage & Family Therapist1427399831
- Kendall Callister, M.F.TMarriage & Family Therapist1790847820
- Randy FagundesMarriage & Family Therapist1932619632
Verify Lyssabeth Mattoon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PSY 25874Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Lyssabeth Mattoon among 12,647 clinical psychologist records in California
Lyssabeth Mattoon, PH.D. is one of 12,647 clinical psychologist records with a practice address in California. 9% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 20% of them.
- NPI issued2007 · 20% of these records are older, 57% newer
- In a Medicare fileNo · 9% of these records are
- In the CMS Doctors and Clinicians fileNo · 19% of these records are
- Record last updated2018 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Psychologist providers in California
There are 12,647 clinical psychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 12,647 in California → Every provider in Merced → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Crissy Bankston, PSY.D.Merced, CA 953401073853073
- Timothy Beach, PSY. D.Merced, CA 953401427397702
- Kathryn Bourke, PSYDMerced, CA 953401477634673
- Susan Buchan, PHDMerced, CA 953401356502207
- Ada Morrow, PSY.D.Merced, CA 953401033477005
- Reba White, PHDMerced, CA 953411063781359
- Lori Allen-Ritter, PH.DMariposa, CA 953381124358973
- Mary Grace Antonette Abear, PSYDMerced, CA 953431306356969
Common questions
What is Lyssabeth Mattoon, PH.D.'s NPI number?
Lyssabeth Mattoon, PH.D.'s National Provider Identifier (NPI) is 1366632747, issued on Jul 31, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Lyssabeth Mattoon, PH.D. located?
The NPPES record lists a practice address at 414 W 21St St, Merced, CA, 95340. Phone: (209) 720-2960. Providers update this record themselves, so call before visiting.
How can I verify Lyssabeth Mattoon, PH.D.'s license?
NPPES lists California license number PSY 25874, 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), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.