NPPES file of Aug 9, 2026

Robert Duff, PH.D.

Clinical Neuropsychologist · Camarillo, CA

Robert Duff, PH.D. is a clinical neuropsychologist with a practice address in Camarillo, California, and NPI 1083149769, issued on May 1, 2017. Check the license (California PSY 29147, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1083149769
Name
Robert Duff
Credential
PH.D.
Primary taxonomy
Clinical Neuropsychologist 103G00000X
License number
PSY 29147 CA
Self-reported in NPPES; status is on the state search
Practice location
445 Rosewood Ave, Camarillo, CA 93010
Phone
(805) 988-6197
Enumerated
May 1, 2017
Record last updated
May 1, 2017 (not updated in 9 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20170601002335); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

8 nearest clinical neuropsychologist records → All 743 in California → Look up another NPI →

Also registered at 445 Rosewood Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Joseph Joseph, D.D.S.General Practice Dentistry1669642120
  2. Kent Pollock, DCChiropractor1588656797
  3. Derek Potts, DDSGeneral Practice Dentistry1922344365
  4. Tyler Taylor, D.C.Chiropractor1164447827

Verify Robert Duff in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license PSY 29147    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Bills Medicare through one group practice

  1. Erik Lande Phd A Professional Psychological CorporationCamarillo, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Robert Duff among 743 clinical neuropsychologist records in California

Robert Duff, PH.D. is one of 743 clinical neuropsychologist records with a practice address in California. 23% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 77% of them.

  • NPI issued2017 · 77% of these records are older, 21% newer
  • In a Medicare fileYes · 23% of these records are
  • In the CMS Doctors and Clinicians fileYes · 32% of these records are
  • Graduated2015 · median 2011 among the 237 with a school on file
  • Record last updated2017 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103G00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Clinical Neuropsychologist providers in California

There are 743 clinical neuropsychologist records in California.

All 743 in California → Every provider in Camarillo → Clinical Neuropsychologist nationwide →

The 8 clinical neuropsychologist records with the nearest ZIP codes

  1. Erik Lande, PH.D.Camarillo, CA 930101982684486
  2. Rachel Casas, PH.DVentura, CA 930011285099424
  3. Paul Martin, PH.D.Oxnard, CA 930301972667178
  4. Steven Rogers, PH.D.Oxnard, CA 930301811107907
  5. Rebecca Goodman, PH.D.Santa Barbara, CA 931011831188291
  6. Juan Manuel Gutierrez, PH.D.Santa Barbara, CA 931011275672644
  7. William Lacey-Bisetty, PHDSanta Barbara, CA 931051588400360
  8. Deborah Smilovitz Foster, PH.D., M.A.Santa Barbara, CA 931051255678124

Common questions

What is Robert Duff, PH.D.'s NPI number?

Robert Duff, PH.D.'s National Provider Identifier (NPI) is 1083149769, issued on May 1, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Robert Duff, PH.D. located?

The NPPES record lists a practice address at 445 Rosewood Ave, Camarillo, CA, 93010. Phone: (805) 988-6197. Providers update this record themselves, so call before visiting.

How can I verify Robert Duff, PH.D.'s license?

NPPES lists California license number PSY 29147, 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. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.