MIRIAM WALTER PSYD
NPI 1700375599
Psychologist - Addiction (Substance Use Disorder) in Walnut Creek, CA

Q: What is Miriam Walter's NPI number?

The NPI number for Miriam Walter is 1700375599. It was assigned to this individual provider in the NPPES registry on May 7, 2018.

Q: What is Miriam Walter's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Addiction (Substance Use Disorder), with taxonomy code 103TA0400X.

Q: When was this NPI record last updated?

The NPPES record for Miriam Walter was last updated on December 30, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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 May 07, 2018PECOS Enrolled

710 S BROADWAY, WALNUT CREEK, CA 94596(925) 295-3924 Get Directions Write a Review

NPPES record last updated: December 30, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Dec 30, 2021, May 7, 2018 (2 updates tracked since 2018).

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About Miriam Walter Psyd NPPES

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

MIRIAM WALTER PSYD (NPI 1700375599) is an individual addiction (substance use disorder) provider in Walnut Creek, California, licensed in California (PSY29700) and active in the NPI registry since May 2018. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1700375599

Entity TypeIndividualFemale

Primary Taxonomy103TA0400X

Provider Legal NameMIRIAM WALTERCredential: PSYD

Location Address710 S BROADWAYWalnut Creek, CA 94596-5294

Mailing Address710 S BroadwayWalnut Creek, CA 94596-5294

Phone(925) 295-3924

Sole ProprietorNo

Enumeration DateMay 7, 2018

Last NPPES UpdateDecember 30, 20212 updates tracked since enumeration

✔ NPI 1700375599 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychologist · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers

Taxonomy Code103TA0400X

License✔ Licensed in CA · PSY29700

Definition

A psychologist with a proficiency that involves the application of psychological treatment of addiction stemming from the use of alcohol and other psychoactive substances (e.g., nicotine, marijuana, cocaine, heroin) or behavioral addictions (e.g., gambling) with the aim of cessation or reduction of use and/or the amelioration of emotional, behavioral, interpersonal and other problems arising from the addictive behavior.

Also ListedPsychologistTaxonomy 103T00000X · License PSY29700 (CA)

710 S BROADWAY, Walnut Creek, CA 94596

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Miriam Walter Psyd 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.

Medicare Billing Reassignment

Medicare enrollment records show Miriam Walter reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc

17 mi

Internal Medicine

901 NEVIN
Richmond, CA 94801

Reassigned Medicare billing, California enrollment
20,078 clinicians in this Medicare group

NPI 1235226531 (510) 307-1555

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 20

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

ELIZABETH KRAMER LMFT

Marriage & Family Therapist

710 S BROADWAY
WALNUT CREEK, CA 94596

Contra Costa County (925) 274-9049

KATRINA DOMINGO PSY.D.

Psychologist

710 S BROADWAY, SUITE #209
WALNUT CREEK, CA 94596

Contra Costa County (925) 295-4901

DR. JENNIFER JO BARKIN PSY.D.

Psychologist (Clinical)

710 S BROADWAY, SUITE 300
WALNUT CREEK, CA 94596

Contra Costa County (925) 295-4145

MS. SUE ELLEN FLOOD LCSW

Social Worker (Clinical)

710 S BROADWAY
WALNUT CREEK, CA 94596

Contra Costa County (925) 295-5263

MR. LAWRENCE RICHARD FOSTER LMFT.

Counselor (Addiction (Substance Use Disorder))

710 S BROADWAY
WALNUT CREEK, CA 94596

Contra Costa County (925) 295-4619

CATHARINE ELIZABETH KIBIRA PH.D.

Psychologist (Addiction (Substance Use Disorder))

710 S BROADWAY
WALNUT CREEK, CA 94596

Contra Costa County (925) 295-4145

JESSICA SINGERMAN PSY.D.

Psychologist

710 S BROADWAY
WALNUT CREEK, CA 94596

Contra Costa County (925) 295-4145

KAISER PERMANENTE

Health Maintenance Organization

710 S BROADWAY
WALNUT CREEK, CA 94596

Contra Costa County (925) 295-2960

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 Miriam Walter's NPI number?

The NPI number for Miriam Walter is 1700375599. It was assigned to this individual provider in the NPPES registry on May 7, 2018.

Where is Miriam Walter located?

Miriam Walter practices at 710 S Broadway, Walnut Creek, CA 94596. The listed phone number is (925) 295-3924.

What is Miriam Walter's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Addiction (Substance Use Disorder), with taxonomy code 103TA0400X.

Is Miriam Walter enrolled in Medicare?

Yes. Miriam Walter is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Miriam Walter's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Miriam Walter reassigns Medicare benefits to Permanente Medical Group Inc (Richmond, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Miriam Walter's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Miriam Walter was last updated on December 30, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.