DR. CATHERINE ALEXANDER MAHLER
NPI 1184770240
Psychologist - Clinical in Sonoma, CA

Q: What is Catherine Mahler's NPI number?

The NPI number for Catherine Mahler is 1184770240. It was assigned to this individual provider in the NPPES registry on January 25, 2007.

Q: What is Catherine Mahler's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Q: When was this NPI record last updated?

The NPPES record for Catherine Mahler was last updated on March 17, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years 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.

Active since January 25, 2007PECOS Enrolled

620 BROADWAY, SONOMA, CA 95476(707) 815-3622 Get Directions Write a Review

NPPES record last updated: March 17, 2018. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Mar 17, 2018, Feb 21, 2018 (2 updates tracked since 2018).

On this page

About Dr. Catherine Alexander Mahler NPPES

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

DR. CATHERINE ALEXANDER MAHLER (NPI 1184770240) is an individual clinical provider in Sonoma, California, licensed in California (PSY 24349) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1184770240

Entity TypeIndividualFemale

Primary Taxonomy103TC0700X

Provider Legal NameDR. CATHERINE ALEXANDER MAHLER

Location Address620 BROADWAYSonoma, CA 95476-7002

Mailing AddressPo Box 5423Napa, CA 94581 · (707) 815-3622

Phone(707) 815-3622

Sole ProprietorYes

Enumeration DateJanuary 25, 2007

Last NPPES UpdateMarch 17, 20182 updates tracked since enumeration

✔ NPI 1184770240 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in CA · PSY 24349

Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

620 BROADWAY, Sonoma, CA 95476

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Other Identifiers 1

Medicaid4605CA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Catherine Alexander Mahler is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95476 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$187.01 typical visit price

range $63.04 – $187.01

Typical copayment $46.75 (range $15.76 – $46.75)

Most-billed visit code 99205

Established Patient

$109.88 typical visit price

range $21.02 – $153.40

Typical copayment $27.47 (range $5.25 – $38.35)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 2

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

MRS. AUBREE NICOLE VANCE TOVREA LCSW

Social Worker (Clinical)

620 BROADWAY
SONOMA, CA 95476

Sonoma County (707) 939-5862

DR. E PEABODY BRADFORD PH.D.

Psychologist (Clinical)

620 BROADWAY
SONOMA, CA 95476

Sonoma County (415) 385-2806

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 Catherine Mahler's NPI number?

The NPI number for Catherine Mahler is 1184770240. It was assigned to this individual provider in the NPPES registry on January 25, 2007.

Where is Catherine Mahler located?

Catherine Mahler practices at 620 Broadway, Sonoma, CA 95476. The listed phone number is (707) 815-3622.

What is Catherine Mahler's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Catherine Mahler enrolled in Medicare?

Yes. Catherine Mahler is registered in the Medicare PECOS enrollment system.

What insurance does Catherine Mahler accept?

Health plans from Providence Health Plan list Catherine Mahler 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 Catherine Mahler was last updated on March 17, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years 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.