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HANNAH CHAMBERLIN
NPI 1598525420
Marriage & Family Therapist in Westlake Village, CA

Active since March 19, 2024Opted out of Medicare · through Jul 8, 2027
2659 TOWNSGATE RD STE 218, WESTLAKE VILLAGE, CA 91361(818) 620-3271 Get Directions Write a Review

NPPES record last updated: February 6, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Hannah Chamberlin NPPES

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

HANNAH CHAMBERLIN (NPI 1598525420) is an individual marriage & family therapist in Westlake Village, California, licensed in California (145887) and active in the NPI registry since March 2024. She has opted out of Medicare through July 8, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1598525420
Entity TypeIndividualFemale
Primary Taxonomy106H00000X
Provider Legal NameHANNAH CHAMBERLIN
Location Address2659 TOWNSGATE RD STE 218Westlake Village, CA 91361-2711
Mailing Address73 College DrVentura, CA 93003-3405
Phone(818) 620-3271
Sole ProprietorYes
Enumeration DateMarch 19, 2024
Last NPPES UpdateFebruary 6, 2026
NPPES CertifiedFebruary 6, 2026
✔ NPI 1598525420 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyMarriage & Family TherapistBehavioral Health & Social Service Providers
Taxonomy Code106H00000X
License✔ Licensed in CA · 145887
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.
2659 TOWNSGATE RD STE 218, Westlake Village, CA 91361
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

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Opted out of Medicare

Hannah Chamberlin has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from July 8, 2025 through July 8, 2027.

Opt-Out Effective DateJuly 8, 2025
Opt-Out In Effect ThroughJuly 8, 2027Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Other Providers at the Same Location NPPES 3

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

RAFAEL DE JESUSE ORTEGA LCSW
Social Worker (Clinical)
2659 TOWNSGATE RD STE 218
WESTLAKE VILLAGE, CA 91361
Los Angeles County (805) 603-1040
KAILI SAMANTHA FARHAT ACSW
Social Worker
2659 TOWNSGATE RD STE 218
WESTLAKE VILLAGE, CA 91361
Los Angeles County (805) 409-7290
CHELSIE ANN SILVEIRA
Social Worker (Clinical)
2659 TOWNSGATE RD STE 218
WESTLAKE VILLAGE, CA 91361
Los Angeles County (805) 409-7290

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 Hannah Chamberlin's NPI number?

The NPI number for Hannah Chamberlin is 1598525420. It was assigned to this individual provider in the NPPES registry on March 19, 2024.

Where is Hannah Chamberlin located?

Hannah Chamberlin practices at 2659 Townsgate Rd Ste 218, Westlake Village, CA 91361. The listed phone number is (818) 620-3271.

What is Hannah Chamberlin's specialty?

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

Is Hannah Chamberlin enrolled in Medicare?

No. Hannah Chamberlin has opted out of Medicare through July 8, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Hannah Chamberlin was last updated on February 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.