NPPES file of Aug 9, 2026

Barbara Elizabeth Prosniewski, PH.D.

Psychologist · Santa Rosa, CA

Barbara Elizabeth Prosniewski, PH.D. is a psychologist with a practice address in Santa Rosa, California, and NPI 1346626744, issued on Aug 7, 2015. Check the license (California PSY17496, 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
1346626744
Name
Barbara Elizabeth Prosniewski
Credential
PH.D.
Primary taxonomy
Psychologist 103T00000X
License number
PSY17496 CA
Self-reported in NPPES; status is on the state search
Practice location
920 Mendocino Ave Ste 4, Santa Rosa, CA 95401
Phone
(707) 583-2363
Enumerated
Aug 7, 2015
Record last updated
Apr 1, 2025
Medicare enrollment
Enrolled (PECOS I20250408003456); 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.
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Also registered at 920 Mendocino Ave Ste 4

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

  1. Margaret Jourdain, MA, MFTMarriage & Family Therapist1669406435

Verify Barbara Elizabeth Prosniewski 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 PSY17496
    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. Redwood Psychology Center IncMonte Rio, CA

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

Barbara Elizabeth Prosniewski among 7,304 psychologist records in California

Barbara Elizabeth Prosniewski, 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 2015, is newer than 64% of them.

  • NPI issued2015 · 64% of these records are older, 33% 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 updated2025 · 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).

92 psychologist records list a practice address in Santa Rosa

They are 92 of the 6,884 NPPES records with a practice address in Santa Rosa, and 7,304 psychologist records in California.

The 8 psychologist records with the nearest ZIP codes

  1. Denise Arana Loubriel, PH.D.Santa Rosa, CA 954011417096033
  2. Richard Busse, PHD PSYCHOLOGISTSanta Rosa, CA 954011790983724
  3. Allison Faris, PSY.D.Santa Rosa, CA 954011295105500
  4. Carolyn Fershtman, PHDSanta Rosa, CA 954011689804460
  5. Liza Fox, PSYDSanta Rosa, CA 954011073055620
  6. Elliott Hastings, PSYDSanta Rosa, CA 954011285891549
  7. Rachel Kelley, MSSanta Rosa, CA 954011871738435
  8. Diane Malnekoff, PHDSanta Rosa, CA 954011861595407

Common questions

What is Barbara Elizabeth Prosniewski, PH.D.'s NPI number?

Barbara Elizabeth Prosniewski, PH.D.'s National Provider Identifier (NPI) is 1346626744, issued on Aug 7, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Barbara Elizabeth Prosniewski, PH.D. located?

The NPPES record lists a practice address at 920 Mendocino Ave Ste 4, Santa Rosa, CA, 95401. Phone: (707) 583-2363. Providers update this record themselves, so call before visiting.

How can I verify Barbara Elizabeth Prosniewski, PH.D.'s license?

NPPES lists California license number PSY17496, 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.