David E. Duffy, PHD
Clinical Psychologist · La Mesa, CA
David E. Duffy, PHD is a clinical psychologist with a practice address in La Mesa, California, and NPI 1326244955, issued on Jun 21, 2007. Check the license (California PSY19177, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- David E. Duffy
- Credential
- PHD
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- PSY19177 CA
Self-reported in NPPES; status is on the state search - Practice location
- 8787 Center Dr, La Mesa, CA 91942
- Phone
- (800) 257-8715
- Enumerated
- Jun 21, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (800) 819-1655
- Medicare enrollment
- Enrolled (PECOS I20080513000738); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 8787 Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rebecca ChiuPhysical Therapist1053855478
- Abbie Maio De Los ReyesRegistered Nurse1467076026
- Michael DreherPhysical Therapy Assistant1578006045
- Grace Guerrero, PTPhysical Therapist1922303593
- Patricia Harman-Mills, OT/LOccupational Therapist1629283429
- Abby Henderson, OTR/LOccupational Therapist1710422878
Verify David E. Duffy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PSY19177Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Memory Check Psychological Services, A Professional CorporationCarlsbad, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
35 clinical psychologist records list a practice address in La Mesa
They are 35 of the 2,168 NPPES records with a practice address in La Mesa, and 12,647 clinical psychologist records in California.
All 35 in La Mesa → All 12,647 in California → Every provider in La Mesa →
Other clinical psychologist records in California
- Tanya Aaen, PH.D.Martinez, CA1477518561
- Jack Aamot, PSY.D.Napa, CA1770711210
- Brian Abary, PSY.DLos Angeles, CA1538354832
- Tatevik Abaryan, PH.D.Pacoima, CA1952682619
- Liana Abascal, PH.D.San Diego, CA1073740569
- Jessica Abdalla, PHDWalnut Creek, CA1558069211
- Mohamed Abdallah, PSY.DEl Centro, CA1912430851
- Megan Abdolrashidi, PSYDGilroy, CA1093293094
- Keri Abdullah, PH.D.San Diego, CA1699840587
- Qutayba Abdullatif, PH.D.Pasadena, CA1134667751
Common questions
What is David E. Duffy, PHD's NPI number?
David E. Duffy, PHD's National Provider Identifier (NPI) is 1326244955, issued on Jun 21, 2007. An NPI identifies a provider in billing; it is not a license.
Where is David E. Duffy, PHD located?
The NPPES record lists a practice address at 8787 Center Dr, La Mesa, CA, 91942. Phone: (800) 257-8715. Providers update this record themselves, so call before visiting.
How can I verify David E. Duffy, PHD's license?
NPPES lists California license number PSY19177, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
What is David E. Duffy, PHD's MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. 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.