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TAMMY EASTERBY
NPI 1992580898
Nurse Practitioner - Psychiatric/Mental Health in Vista, CA

Active since August 29, 2023PECOS Enrolled
1968 VIA CTR STE 200, VISTA, CA 92081(760) 979-0398(866) 622-6045 Get Directions Write a Review

NPPES record last updated: November 9, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 9, 2025, Aug 10, 2024, Aug 29, 2023 (3 updates tracked since 2023).

About Tammy Easterby NPPES

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

TAMMY EASTERBY (NPI 1992580898) is an individual psychiatric/mental health provider in Vista, California, licensed in California (95026516) and active in the NPI registry since August 2023. She is enrolled in Medicare PECOS and is a graduate of Other (2021).

NPPES Registry Identity

NPI1992580898
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameTAMMY EASTERBY
Location Address1968 VIA CTR STE 200Vista, CA 92081-6056
Mailing Address1968 Via Ctr Ste 200Vista, CA 92081-6056 · Fax (866) 622-6045
Phone(760) 979-0398
Fax(866) 622-6045
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateAugust 29, 2023
Last NPPES UpdateNovember 9, 20253 updates tracked since enumeration
NPPES CertifiedNovember 9, 2025
✔ NPI 1992580898 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
Licenses✔ Licensed in CA · 95026516✔ Licensed in AZ · 329136
Also ListedRegistered Nurse · Psychiatric/Mental Health, AdultTaxonomy 163WP0809X · License 95086891 (CA)
Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License 95026516 (CA)
1968 VIA CTR STE 200, Vista, CA 92081
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Tammy Easterby is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID244747327
PECOS Enrollment IDI20251113003957
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 Reassignments

2

Medicare enrollment records show Tammy Easterby reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Grow Healthcare Group PC
387 mi
Mental Health
99 S ALMADEN BLVD STE 600
San Jose, CA 95113
  • Reassigned Medicare billing, California enrollment
  • 3,139 clinicians in this Medicare group
NPI 1154994846 (408) 402-4385
Grow Healthcare Group PA
2,280 mi
Mental Health
66 W FLAGLER ST STE 900
Miami, FL 33130
  • Reassigned Medicare billing, Arizona enrollment
  • 532 clinicians in this Medicare group
NPI 1245845932 (786) 244-7711

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92081 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
$94.87 typical visit price
range $62.10 – $184.71
Typical copayment $23.71 (range $15.52 – $46.17)
Most-billed visit code 99203
Established Patient
$108.42 typical visit price
range $20.62 – $151.42
Typical copayment $27.10 (range $5.15 – $37.85)
Most-billed visit code 99214
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 Tammy Easterby's NPI number?

The NPI number for Tammy Easterby is 1992580898. It was assigned to this individual provider in the NPPES registry on August 29, 2023.

Where is Tammy Easterby located?

Tammy Easterby practices at 1968 Via Ctr Ste 200, Vista, CA 92081. The listed phone number is (760) 979-0398.

What is Tammy Easterby's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Tammy Easterby enrolled in Medicare?

Yes. Tammy Easterby is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Tammy Easterby's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Tammy Easterby reassigns Medicare benefits to 2 organizations: Grow Healthcare Group PC (San Jose, CA) and Grow Healthcare Group PA (Miami, FL). Each 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 Tammy Easterby's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Tammy Easterby accept?

Health plans from Blue Cross and Blue Shield of Texas and UnitedHealthcare list Tammy Easterby 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 Tammy Easterby was last updated on November 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.