Mark Stanley Jesinoski, PHD
Psychologist · Oceanside, CA
Mark Stanley Jesinoski, PHD is a psychologist with a practice address in Oceanside, California, and NPI 1255829727, issued on Apr 30, 2018. Check the license (California 26433, 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
- Mark Stanley Jesinoski
- Credential
- PHD
- Primary taxonomy
- Psychologist 103T00000X
- License number
- 26433 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3355 Mission Ave Ste 111, Oceanside, CA 92058
- Phone
- (760) 810-1440
- Enumerated
- Apr 30, 2018
- Record last updated
- Apr 30, 2018 (not updated in 8 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 3355 Mission Ave Ste 111
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Katerina Prossr, PHDPsychologist1871011239
- Feeby Wooden, PH.D.Clinical Psychologist1013035252
Verify Mark Stanley Jesinoski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 26433Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Psychologist providers in California
There are 7,304 psychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other psychologist records in California
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- Elham Abouhamzeh, PSY.DIrvine, CA1386092880
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- Mackenzie Abraham, PHDRedondo Beach, CA1881053833
- Sandra Abraham, PSYDSanta Fe Springs, CA1427467851
Common questions
What is Mark Stanley Jesinoski, PHD's NPI number?
Mark Stanley Jesinoski, PHD's National Provider Identifier (NPI) is 1255829727, issued on Apr 30, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Mark Stanley Jesinoski, PHD located?
The NPPES record lists a practice address at 3355 Mission Ave Ste 111, Oceanside, CA, 92058. Phone: (760) 810-1440. Providers update this record themselves, so call before visiting.
How can I verify Mark Stanley Jesinoski, PHD's license?
NPPES lists California license number 26433, 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.