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MRS. SHIVA BAKHTIARI AHMADI FNP
NPI 1356873715
Nurse Practitioner - Psychiatric/Mental Health in Costa Mesa, CA

Active since April 03, 2017PECOS EnrolledAccepts Medicare Assignment
3151 AIRWAY AVE STE G1, COSTA MESA, CA 92626(714) 545-5550 Get Directions Write a Review

NPPES record last updated: August 28, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 8, 2022, Nov 15, 2018, Apr 15, 2018 (3 updates tracked since 2018).

About Mrs. Shiva Bakhtiari Ahmadi Fnp NPPES

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

MRS. SHIVA BAKHTIARI AHMADI FNP (NPI 1356873715) is an individual psychiatric/mental health provider in Costa Mesa, California, licensed in California (95006733) and active in the NPI registry since April 2017. She is enrolled in Medicare PECOS and is a graduate of Other (2023).

NPPES Registry Identity

NPI1356873715
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameMRS. SHIVA BAKHTIARI AHMADICredential: FNP
Location Address3151 AIRWAY AVE STE G1Costa Mesa, CA 92626-4624
Mailing Address19782 Macarthur Blvd Ste 300Irvine, CA 92612-2417 · (714) 545-5550
Phone(714) 545-5550
Sole ProprietorNo
Medical School CMSOtherGraduated 2023
Enumeration DateApril 3, 2017
Last NPPES UpdateAugust 28, 20253 updates tracked since enumeration
NPPES CertifiedAugust 28, 2025
✔ NPI 1356873715 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 · 95006733
3151 AIRWAY AVE STE G1, Costa Mesa, CA 92626
Open in Google Maps ↗

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

Mrs. Shiva Bakhtiari Ahmadi Fnp 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 ID1052686953
PECOS Enrollment IDI20190216000040
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 Shiva Ahmadi reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Pacific Neuropsychiatric Specialists Inc.
Same address
Psychiatry
3151 AIRWAY AVE STE G1
Costa Mesa, CA 92626
  • Reassigned Medicare billing, California enrollment
  • 28 clinicians in this Medicare group
NPI 1356685218 (714) 545-5550

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 92626 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.

Other Providers at the Same Location NPPES 16

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

BRANDY MARTINEZ PA-C, CAQ-PSYCH
Physician Assistant (Medical)
3151 AIRWAY AVE STE G1
COSTA MESA, CA 92626
Orange County (714) 545-5550
HEATHER SUSAN VEITCH PA
Physician Assistant
3151 AIRWAY AVE STE G1
COSTA MESA, CA 92626
Orange County (714) 545-5550
PACIFIC NEUROPSYCHIATRIC SPECIALISTS INC.
Psychiatry & Neurology (Psychiatry)
3151 AIRWAY AVE STE G1
COSTA MESA, CA 92626
Orange County (714) 545-5550
NICOLE OLIVAS
Physician Assistant
3151 AIRWAY AVE STE G1
COSTA MESA, CA 92626
Orange County (714) 545-5550
VICTORIA HEGLAR PA-C
Physician Assistant
3151 AIRWAY AVE STE G1
COSTA MESA, CA 92626
Orange County (714) 545-5550
LAUREN JUFIAR
Clinical Nurse Specialist (Psychiatric/Mental Health)
3151 AIRWAY AVE STE G1
COSTA MESA, CA 92626
Orange County (714) 545-5550
TYLER BURNS PA-C, CAQ-PSYCH
Physician Assistant
3151 AIRWAY AVE STE G1
COSTA MESA, CA 92626
Orange County (714) 545-5550
ALEXANDER MULE PA-C
Physician Assistant
3151 AIRWAY AVE STE G1
COSTA MESA, CA 92626
Orange County (714) 545-5550

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 Shiva Ahmadi's NPI number?

The NPI number for Shiva Ahmadi is 1356873715. It was assigned to this individual provider in the NPPES registry on April 3, 2017.

Where is Shiva Ahmadi located?

Shiva Ahmadi practices at 3151 Airway Ave Ste G1, Costa Mesa, CA 92626. The listed phone number is (714) 545-5550.

What is Shiva Ahmadi's specialty?

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

Is Shiva Ahmadi enrolled in Medicare?

Yes. Shiva Ahmadi 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 Shiva Ahmadi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Shiva Ahmadi reassigns Medicare benefits to Pacific Neuropsychiatric Specialists Inc. (Costa Mesa, 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 Shiva Ahmadi'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 Shiva Ahmadi was last updated on August 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.