Matthew Hennessy, PSYD
Cognitive & Behavioral Psychologist · Atascadero, CA
Matthew Hennessy, PSYD is a cognitive & behavioral psychologist with a practice address in Atascadero, California, and NPI 1336191576, issued on May 16, 2006. Check the license (California PSY17421, 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
- Matthew Hennessy
- Credential
- PSYD
- Primary taxonomy
- Cognitive & Behavioral Psychologist 103TB0200X
- License number
- PSY17421 CA
Self-reported in NPPES; status is on the state search - Practice location
- 10333 EL Camino Real, Atascadero, CA 93423
- Phone
- (805) 468-2000
- Enumerated
- May 16, 2006
- Entity
- Type 1 · individual
Also registered at 10333 EL Camino Real
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Matthew Hennessy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PSY17421Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Cognitive & Behavioral Psychologist providers in California
There are 342 cognitive & behavioral psychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other cognitive & behavioral psychologist records in California
- Erik Abell, PH.D.Costa Mesa, CA1063631968
- Jean-Frederic Aboudarham, PH. D.Mountain View, CA1336664838
- Lisa Acker, PSYDSanta Monica, CA1538904511
- Niloofar Afari, PHDSan Diego, CA1275557621
- Adrianne Ahern Grundland, PHDSan Diego, CA1861627325
- Alicia AlcantarCamarillo, CA1407507767
- Richard Allen, PHDSanta Cruz, CA1326251521
- Ifan Ambrosius, PPSLaguna Niguel, CA1811652290
- Amar Anand, MDVallejo, CA1407297005
- Keith Andersen, PH.D.Bishop, CA1275558694
Common questions
What is Matthew Hennessy, PSYD's NPI number?
Matthew Hennessy, PSYD's National Provider Identifier (NPI) is 1336191576, issued on May 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Matthew Hennessy, PSYD located?
The NPPES record lists a practice address at 10333 EL Camino Real, Atascadero, CA, 93423. Phone: (805) 468-2000. Providers update this record themselves, so call before visiting.
How can I verify Matthew Hennessy, PSYD's license?
NPPES lists California license number PSY17421, 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.