DR. BARBARA ELIZABETH PROSNIEWSKI PH.D.
NPI 1346626744
Psychologist in Santa Rosa, CA

Active since August 07, 2015Accepts Medicare Assignment
920 MENDOCINO AVE STE 4, SANTA ROSA, CA 95401(707) 583-2363 Get Directions Write a Review

NPPES record last updated: April 1, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Apr 1, 2025, Mar 24, 2025 (2 updates tracked since 2025).

About Dr. Barbara Elizabeth Prosniewski Ph.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. BARBARA ELIZABETH PROSNIEWSKI PH.D. (NPI 1346626744) is an individual psychologist in Santa Rosa, California, licensed in California (PSY17496) and active in the NPI registry since August 2015. She maintains a secondary practice location in Monte Rio and is a graduate of Other (1996).

NPPES Registry Identity

NPI1346626744
Entity TypeIndividualFemale
Primary Taxonomy103T00000X
Provider Legal NameDR. BARBARA ELIZABETH PROSNIEWSKICredential: PH.D.
Location Address920 MENDOCINO AVE STE 4Santa Rosa, CA 95401-4860
Mailing Address920 Mendocino Ave Ste 4Santa Rosa, CA 95401-4860 · (707) 583-2363 · Fax (707) 595-5385
Sole ProprietorYes
Medical School CMSOtherGraduated 1996
Enumeration DateAugust 7, 2015
Last NPPES UpdateApril 1, 20252 updates tracked since enumeration
NPPES CertifiedMarch 24, 2025
NPI 1346626744 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License Licensed in CA · PSY17496
Definition
A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.
920 MENDOCINO AVE STE 4, Santa Rosa, CA 95401

Secondary Practice Location 1

Location 119375 Hwy 116Monte Rio, CA 95462 · Phone (707) 865-1200 · Fax (707) 865-5122

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Barbara Elizabeth Prosniewski Ph.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9830613165
PECOS Enrollment IDI20250408003456

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Marriage & Family Therapist
920 MENDOCINO AVE STE 4
SANTA ROSA, CA 95401

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Barbara Prosniewski's NPI number?

The NPI number for Barbara Prosniewski is 1346626744. It was assigned to this individual provider in the NPPES registry on August 7, 2015.

Where is Barbara Prosniewski located?

Barbara Prosniewski practices at 920 Mendocino Ave Ste 4, Santa Rosa, CA 95401. The listed phone number is (707) 583-2363.

What is Barbara Prosniewski's specialty?

The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.

Is Barbara Prosniewski enrolled in Medicare?

Yes. Barbara Prosniewski is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Barbara Prosniewski accept?

Health plans from Providence Health Plan list Barbara Prosniewski as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Barbara Prosniewski was last updated on April 1, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.