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ALYSSA JEANELLE TIERNEY LMFT
NPI 1770949349
Marriage & Family Therapist in Alturas, CA

Active since January 12, 2016PECOS EnrolledAccepts Medicare Assignment
441 N MAIN ST, ALTURAS, CA 96101(530) 233-6312(530) 233-6339 Get Directions Write a Review

NPPES record last updated: June 2, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jun 2, 2021, Jan 12, 2016 (2 updates tracked since 2016).

About Alyssa Jeanelle Tierney Lmft NPPES

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

ALYSSA JEANELLE TIERNEY LMFT (NPI 1770949349) is an individual marriage & family therapist in Alturas, California, licensed in California (125428) and active in the NPI registry since January 2016. She is enrolled in Medicare PECOS, maintains a secondary practice location in Chico, and is a graduate of Other (2015).

NPPES Registry Identity

NPI1770949349
Entity TypeIndividualFemale
Primary Taxonomy106H00000X
Provider Legal NameALYSSA JEANELLE TIERNEYCredential: LMFT
Location Address441 N MAIN STAlturas, CA 96101-3457
Mailing Address441 N Main StAlturas, CA 96101-3457 · (530) 233-6312 · Fax (530) 233-6339
Phone(530) 233-6312
Fax(530) 233-6339
Sole ProprietorNo
Medical School CMSOtherGraduated 2015
Enumeration DateJanuary 12, 2016
Last NPPES UpdateJune 2, 20212 updates tracked since enumeration
NPPES CertifiedJune 2, 2021
✔ NPI 1770949349 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 · 125428
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
441 N MAIN ST, Alturas, CA 96101
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Secondary Practice Location 1

Location 11360 E Lassen AveChico, CA 95973-7823 · Phone (530) 267-1753

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Alyssa Jeanelle Tierney Lmft 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 ID9830541812
PECOS Enrollment IDI20240115001801
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 Alyssa Tierney reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

County Of Modoc
Same address
Behavior Analyst
441 N MAIN ST
Alturas, CA 96101
  • Reassigned Medicare billing, California enrollment
  • 9 clinicians in this Medicare group
NPI 1396858668 (530) 233-6312

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.

ROSEMARY PARKS RN
Registered Nurse
441 N MAIN ST
ALTURAS, CA 96101
Modoc County (530) 233-6312
MARIE NORTHRUP
Case Manager/Care Coordinator
441 N MAIN ST
ALTURAS, CA 96101
Modoc County (530) 233-6312
TARA LEE SHEPHERD MA, CAS
Counselor (Addiction (Substance Use Disorder))
441 N MAIN ST
ALTURAS, CA 96101
Modoc County (530) 233-6312
GUILLERMO DIAZ MBA
Case Manager/Care Coordinator
441 N MAIN ST
ALTURAS, CA 96101
Modoc County (530) 233-6312
HEIDI LYNN ELMER
Case Manager/Care Coordinator
441 N MAIN ST
ALTURAS, CA 96101
Modoc County (530) 233-6312
MARIA HURTADO
Counselor (Addiction (Substance Use Disorder))
441 N MAIN ST
ALTURAS, CA 96101
Modoc County (530) 233-6312
MR. LLOYD JAMES POWELL CARS 0305
Counselor (Addiction (Substance Use Disorder))
441 N MAIN ST
ALTURAS, CA 96101
Modoc County (530) 233-6312
SONDRA S TATE CARS NAFC
Counselor (Addiction (Substance Use Disorder))
441 N MAIN ST
ALTURAS, CA 96101
Modoc County (530) 233-6312

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 Tierney's NPI number?

The NPI number for Alyssa Tierney is 1770949349. It was assigned to this individual provider in the NPPES registry on January 12, 2016.

Where is Alyssa Tierney located?

Alyssa Tierney practices at 441 N Main St, Alturas, CA 96101. The listed phone number is (530) 233-6312.

What is Alyssa Tierney's specialty?

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

Is Alyssa Tierney enrolled in Medicare?

Yes. Alyssa Tierney 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.

Which organization bills Medicare for Alyssa Tierney's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alyssa Tierney reassigns Medicare benefits to County Of Modoc (Alturas, 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 Alyssa Tierney'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 Alyssa Tierney was last updated on June 2, 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.