MRS. ALYSSA MASS M.F.T.
NPI 1508250077
Marriage & Family Therapist in San Francisco, CA

Q: What is Alyssa Mass's NPI number?

The NPI number for Alyssa Mass is 1508250077. It was assigned to this individual provider in the NPPES registry on March 23, 2015.

Q: What is Alyssa Mass's specialty?

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

Q: Is Alyssa Mass enrolled in Medicare?

No. Alyssa Mass has opted out of Medicare through September 5, 2026. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

Q: When was this NPI record last updated?

The NPPES record for Alyssa Mass was last updated on March 23, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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 March 23, 2015Opted out of Medicare · through Sep 5, 2026

3150 18TH ST STE 501, MAILBOX 119, SAN FRANCISCO, CA 94110(310) 702-6734 Get Directions Write a Review

NPPES record last updated: March 23, 2015. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Mrs. Alyssa Mass M.f.t. NPPES

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

MRS. ALYSSA MASS M.F.T. (NPI 1508250077) is an individual marriage & family therapist in San Francisco, California, licensed in California (LMFT82434) and active in the NPI registry since March 2015. She has opted out of Medicare through September 5, 2026.

NPPES Registry Identity

NPI1508250077

Entity TypeIndividualFemale

Primary Taxonomy106H00000X

Provider Legal NameMRS. ALYSSA MASSCredential: M.F.T.

Location Address3150 18TH ST STE 501, MAILBOX 119San Francisco, CA 94110-2077

Mailing Address1800 Pacific Ave Apt 701San Francisco, CA 94109-2399 · (310) 702-6734

Phone(310) 702-6734

Sole ProprietorYes

Enumeration DateMarch 23, 2015

✔ NPI 1508250077 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 · LMFT82434

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.

3150 18TH ST STE 501, San Francisco, CA 94110

Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Mrs. Alyssa Mass M.f.t. 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 September 5, 2024 through September 5, 2026.

Opt-Out Effective DateSeptember 5, 2024

Opt-Out In Effect ThroughSeptember 5, 2026Opt-out affidavits renew automatically every two years unless cancelled

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.

APEX COLLECTION & DIAGNOSTICS LLC

Clinical Medical Laboratory

3150 18TH ST STE 501
SAN FRANCISCO, CA 94110

San Francisco County (707) 991-9022

LILY ROSE SLOANE LMFT

Marriage & Family Therapist

3150 18TH ST STE 501, MAILBOX #119
SAN FRANCISCO, CA 94110

San Francisco County (415) 534-5191

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 Alyssa Mass's NPI number?

The NPI number for Alyssa Mass is 1508250077. It was assigned to this individual provider in the NPPES registry on March 23, 2015.

Where is Alyssa Mass located?

Alyssa Mass practices at 3150 18th St Ste 501 Mailbox 119, San Francisco, CA 94110. The listed phone number is (310) 702-6734.

What is Alyssa Mass's specialty?

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

Is Alyssa Mass enrolled in Medicare?

No. Alyssa Mass has opted out of Medicare through September 5, 2026. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

When was this NPI record last updated?

The NPPES record for Alyssa Mass was last updated on March 23, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.