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MR. STEFAN JUDE KEYSER
NPI 1235477423
Marriage & Family Therapist in Grass Valley, CA

Active since January 22, 2013PECOS Enrolled
500 CROWN POINT CIR STE 100, GRASS VALLEY, CA 95945(530) 273-5440 Get Directions Write a Review

NPPES record last updated: February 1, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Mr. Stefan Jude Keyser NPPES

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

MR. STEFAN JUDE KEYSER (NPI 1235477423) is an individual marriage & family therapist in Grass Valley, California, licensed in California (93671) and active in the NPI registry since January 2013. He is enrolled in Medicare PECOS and maintains a secondary practice location in Oakland.

NPPES Registry Identity

NPI1235477423
Entity TypeIndividualMale
Primary Taxonomy106H00000X
Provider Legal NameMR. STEFAN JUDE KEYSER
Location Address500 CROWN POINT CIR STE 100Grass Valley, CA 95945-9561
Mailing Address500 Crown Point Cir Ste 100Grass Valley, CA 95945-9561 · (530) 273-5440
Phone(530) 273-5440
Sole ProprietorNo
Enumeration DateJanuary 22, 2013
Last NPPES UpdateFebruary 1, 2021
NPPES CertifiedFebruary 1, 2021
✔ NPI 1235477423 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyMarriage & Family TherapistBehavioral Health & Social Service Providers
Taxonomy Code106H00000X
License✔ Licensed in CA · 93671
Definition
A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups.
Also ListedCounselor · Mental HealthTaxonomy 101YM0800X
500 CROWN POINT CIR STE 100, Grass Valley, CA 95945
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Secondary Practice Location 1

Location 13800 Coolidge AveOakland, CA 94602-3311 · Phone (510) 485-5381 · Fax (510) 530-2047

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mr. Stefan Jude Keyser 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 Stefan Keyser reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
84 mi
Internal Medicine
7373 WEST LANE
Stockton, CA 95210
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1548343510 (209) 476-2000

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.

SAMUEL SEBASTIAN ECHEVERRIA
Counselor (Mental Health)
500 CROWN POINT CIR STE 100
GRASS VALLEY, CA 95945
Nevada County (530) 273-5440
JONATHAN MARTIN GONZALEZ-MONTENBRUCK
Student in an Organized Health Care Education/Training Program
500 CROWN POINT CIR STE 100
GRASS VALLEY, CA 95945
Nevada County (530) 273-5440
ALICIA MERCY ANNE CLAYTON
Case Manager/Care Coordinator
500 CROWN POINT CIR STE 100
GRASS VALLEY, CA 95945
Nevada County (530) 273-5440
CHERYL LYNN PETERSON
Peer Specialist
500 CROWN POINT CIR STE 100
GRASS VALLEY, CA 95945
Nevada County (530) 273-5440
MICHELLE OCONNOR
Counselor (Mental Health)
500 CROWN POINT CIR STE 100
GRASS VALLEY, CA 95945
Nevada County (530) 273-5440
MS. CHRISTINE PERALES
Counselor (Mental Health)
500 CROWN POINT CIR STE 100
GRASS VALLEY, CA 95945
Nevada County (530) 273-5440
LAUREN BATALIAS
Student in an Organized Health Care Education/Training Program
500 CROWN POINT CIR STE 100
GRASS VALLEY, CA 95945
Nevada County (530) 273-5440
ARLENE RUTH DOUGLASS
Counselor (Mental Health)
500 CROWN POINT CIR STE 100
GRASS VALLEY, CA 95945
Nevada County (530) 273-5440

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 Stefan Keyser's NPI number?

The NPI number for Stefan Keyser is 1235477423. It was assigned to this individual provider in the NPPES registry on January 22, 2013.

Where is Stefan Keyser located?

Stefan Keyser practices at 500 Crown Point Cir Ste 100, Grass Valley, CA 95945. The listed phone number is (530) 273-5440.

What is Stefan Keyser's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

Is Stefan Keyser enrolled in Medicare?

Yes. Stefan Keyser is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Stefan Keyser's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stefan Keyser reassigns Medicare benefits to Permanente Medical Group Inc (Stockton, 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 Stefan Keyser'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 Stefan Keyser was last updated on February 1, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.