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KOA WIER
NPI 1740848670
Nurse Practitioner - Psychiatric/Mental Health in Santa Ana, CA

Active since June 05, 2019PECOS EnrolledAccepts Medicare Assignment
999 N TUSTIN AVE STE G1, SANTA ANA, CA 92705(714) 545-5550 Get Directions Write a Review

NPPES record last updated: October 4, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Oct 4, 2024, Jun 5, 2019 (2 updates tracked since 2019).

About Koa Wier NPPES

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

KOA WIER (NPI 1740848670) is an individual psychiatric/mental health provider in Santa Ana, California, licensed in California (95031900) and active in the NPI registry since June 2019. He is enrolled in Medicare PECOS and is a graduate of Other (2024).

NPPES Registry Identity

NPI1740848670
Entity TypeIndividualMale
Primary Taxonomy363LP0808X
Provider Legal NameKOA WIER
Location Address999 N TUSTIN AVE STE G1Santa Ana, CA 92705-3528
Mailing Address3151 Airway Ave Ste G1Costa Mesa, CA 92626-4624 · (714) 545-5550
Phone(714) 545-5550
Sole ProprietorNo
Medical School CMSOtherGraduated 2024
Enumeration DateJune 5, 2019
Last NPPES UpdateOctober 4, 20242 updates tracked since enumeration
NPPES CertifiedOctober 4, 2024
✔ NPI 1740848670 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in CA · 95031900
999 N TUSTIN AVE STE G1, Santa Ana, CA 92705
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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

Koa Wier 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 ID7416489562
PECOS Enrollment IDI20241015001618
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 Koa Wier reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Bridge Telehealth PC
11 mi
Psychiatry
101 E VALENCIA MESA DR
Fullerton, CA 92835
  • Reassigned Medicare billing, California enrollment
  • 5 clinicians in this Medicare group
NPI 1275266264 (714) 871-3280

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 92705 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
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
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 Koa Wier's NPI number?

The NPI number for Koa Wier is 1740848670. It was assigned to this individual provider in the NPPES registry on June 5, 2019.

Where is Koa Wier located?

Koa Wier practices at 999 N Tustin Ave Ste G1, Santa Ana, CA 92705. The listed phone number is (714) 545-5550.

What is Koa Wier's specialty?

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

Is Koa Wier enrolled in Medicare?

Yes. Koa Wier 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 Koa Wier's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Koa Wier reassigns Medicare benefits to Bridge Telehealth PC (Fullerton, 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 Koa Wier'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 Koa Wier was last updated on October 4, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.