NPPES file of Aug 9, 2026

Joanne Murphy Wrenn, PH.D.

Psychologist · Los Gatos, CA

Joanne Murphy Wrenn, PH.D. is a psychologist with a practice address in Los Gatos, California, and NPI 1174837447, issued on Jul 28, 2010. Check the license (California PSY 22649, 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
1174837447
Name
Joanne Murphy Wrenn
Credential
PH.D.
Primary taxonomy
Psychologist 103T00000X
License number
PSY 22649 CA
Self-reported in NPPES; status is on the state search
Practice location
14502 Stetson RD, Los Gatos, CA 95033
Phone
(408) 257-2874
Enumerated
Jul 28, 2010
Record last updated
Oct 11, 2010 (not updated in 16 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20100917000413); accepts Medicare assignment
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.
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Verify Joanne Murphy Wrenn 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 22649
    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.

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Bills Medicare through one group practice

  1. Permanente Medical Group IncSan Jose, CA

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

Joanne Murphy Wrenn among 7,304 psychologist records in California

Joanne Murphy Wrenn, PH.D. is one of 7,304 psychologist records with a practice address in California. 6% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 46% of them.

  • NPI issued2010 · 46% of these records are older, 50% newer
  • In a Medicare fileYes · 6% of these records are
  • In the CMS Doctors and Clinicians fileYes · 14% of these records are
  • Graduated1996 · median 2005 among the 1,058 with a school on file
  • Record last updated2010 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103T00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

20 psychologist records list a practice address in Los Gatos

They are 20 of the 1,905 NPPES records with a practice address in Los Gatos, and 7,304 psychologist records in California.

The 8 psychologist records with the nearest ZIP codes

  1. Brittany Balogh, PH.D.Los Gatos, CA 950321467785725
  2. Karen Chauvin, P.C.N.S.Los Gatos, CA 950321104037373
  3. Douglas Drucker, PHDLos Gatos, CA 950321720175748
  4. Cynthia Furze, PH.D.Los Gatos, CA 950321902264625
  5. Sophie Giles, PH.D.Los Gatos, CA 950321003043910
  6. Janet Kraemer, PH.D.Los Gatos, CA 950321639280076
  7. Charles Kraft, ED.D.Los Gatos, CA 950321811006018
  8. Robert Lauridsen, PH.D.Los Gatos, CA 950321134496896

Common questions

What is Joanne Murphy Wrenn, PH.D.'s NPI number?

Joanne Murphy Wrenn, PH.D.'s National Provider Identifier (NPI) is 1174837447, issued on Jul 28, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Joanne Murphy Wrenn, PH.D. located?

The NPPES record lists a practice address at 14502 Stetson RD, Los Gatos, CA, 95033. Phone: (408) 257-2874. Providers update this record themselves, so call before visiting.

How can I verify Joanne Murphy Wrenn, PH.D.'s license?

NPPES lists California license number PSY 22649, 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.

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.