Mark Joseph Sergi, PH.D.
Clinical Psychologist · Northridge, CA
Mark Joseph Sergi, PH.D. is a clinical psychologist with a practice address in Northridge, California, and NPI 1750483467, issued on Sep 2, 2006. Check the license (California 16519, 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 Joseph Sergi
- Credential
- PH.D.
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License numbers
- 16519 CA
PSY16519 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9535 Reseda Blvd Ste 112, Northridge, CA 91324
- Phone
- (818) 239-2654
- Enumerated
- Sep 2, 2006
- Record last updated
- May 30, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (818) 450-0636
- Medicare enrollment
- Enrolled (PECOS I20081006000387); may accept Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 12,647 in California → Look up another NPI →
Verify Mark Joseph Sergi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 16519Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Mark Joseph Sergi among 12,647 clinical psychologist records in California
Mark Joseph Sergi, 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 2006, is newer than 1% of them.
- NPI issued2006 · 1% of these records are older, 80% newer
- In a Medicare fileNo · 9% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated1998 · median 2006 among the 2,424 with a school on file
- Record last updated2020 · 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).
49 clinical psychologist records list a practice address in Northridge
They are 49 of the 2,598 NPPES records with a practice address in Northridge, and 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 Northridge → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Elaine Alvarez, PH.D.Northridge, CA 913241417030800
- Lisa Arslanian, PSYDNorthridge, CA 913241790422624
- Anett Assilian, PSY.D.Northridge, CA 913241154452332
- Charles Hanson, PH.D.Northridge, CA 913241851443295
- Jose Montes, PHDNorthridge, CA 913241407004518
- Michael Pines, PHDNorthridge, CA 913241154556645
- Martha Reza, PH. D.Northridge, CA 913241285622498
- Beverly Rivera, PHDNorthridge, CA 913241639382815
Common questions
What is Mark Joseph Sergi, PH.D.'s NPI number?
Mark Joseph Sergi, PH.D.'s National Provider Identifier (NPI) is 1750483467, issued on Sep 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Joseph Sergi, PH.D. located?
The NPPES record lists a practice address at 9535 Reseda Blvd Ste 112, Northridge, CA, 91324. Phone: (818) 239-2654. Providers update this record themselves, so call before visiting.
How can I verify Mark Joseph Sergi, PH.D.'s license?
NPPES lists California license number 16519, 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.