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JANET KASS LCSW
NPI 1013018647
Social Worker - Clinical in Mill Valley, CA

Active since September 26, 2006PECOS EnrolledAccepts Medicare Assignment
222 MOUNTAIN VIEW AVE, MILL VALLEY, CA 94941(510) 417-6732(888) 965-0584 Get Directions Write a Review

NPPES record last updated: January 16, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 16, 2026, Jul 5, 2022, Apr 26, 2019 and 2 more (5 updates tracked since 2019).

About Janet Kass Lcsw NPPES

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

JANET KASS LCSW (NPI 1013018647) is an individual clinical provider in Mill Valley, California and active in the NPI registry since September 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1986).

NPPES Registry Identity

NPI1013018647
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameJANET KASSCredential: LCSW
Location Address222 MOUNTAIN VIEW AVEMill Valley, CA 94941-1743
Mailing Address222 Mountain View AveMill Valley, CA 94941-1743 · (510) 417-6732 · Fax (888) 965-0584
Phone(510) 417-6732
Fax(888) 965-0584
Sole ProprietorYes
Medical School CMSOtherGraduated 1986
Enumeration DateSeptember 26, 2006
Last NPPES UpdateJanuary 16, 20265 updates tracked since enumeration
NPPES CertifiedJanuary 16, 2026
✔ NPI 1013018647 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
Also ListedCounselor · Mental HealthTaxonomy 101YM0800X · License R032617-1 (NY)
222 MOUNTAIN VIEW AVE, Mill Valley, CA 94941
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Other Identifiers 2

Other7482980NY · Empire Plan
Other000135468NY · Excellus Blue Cross

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 and accepts Medicare assignment

Janet Kass Lcsw 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 ID3375538747
PECOS Enrollment IDI20260401001650
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 94941 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
$0.00 typical visit price
range $69.07 – $202.63
Typical copayment $0.00 (range $17.26 – $50.65)
Most-billed visit code NA
Established Patient
$85.00 typical visit price
range $23.44 – $166.64
Typical copayment $21.25 (range $5.86 – $41.66)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Janet Kass's NPI number?

The NPI number for Janet Kass is 1013018647. It was assigned to this individual provider in the NPPES registry on September 26, 2006.

Where is Janet Kass located?

Janet Kass practices at 222 Mountain View Ave, Mill Valley, CA 94941. The listed phone number is (510) 417-6732.

What is Janet Kass's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Janet Kass enrolled in Medicare?

Yes. Janet Kass 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 Janet Kass accept?

Health plans from Providence Health Plan list Janet Kass 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 Janet Kass was last updated on January 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.