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IRA VERGARA AMAYUN BSN, MPH, DNP, FNP-C
NPI 1639845993
Nurse Practitioner in Fremont, CA

Active since August 18, 2021PECOS EnrolledAccepts Medicare Assignment
39141 CIVIC CENTER DR STE 130, FREMONT, CA 94538(510) 248-1680 Get Directions Write a Review

NPPES record last updated: October 16, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 16, 2023, Dec 21, 2022, Aug 18, 2021 (3 updates tracked since 2021).

About Ira Vergara Amayun Bsn, Mph, Dnp, Fnp-c NPPES

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

IRA VERGARA AMAYUN BSN, MPH, DNP, FNP-C (NPI 1639845993) is an individual nurse practitioner in Fremont, California, licensed in California (95018990) and active in the NPI registry since August 2021. She is enrolled in Medicare PECOS and is a graduate of Other (2021).

NPPES Registry Identity

NPI1639845993
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameIRA VERGARA AMAYUNCredential: BSN, MPH, DNP, FNP-C
Location Address39141 CIVIC CENTER DR STE 130Fremont, CA 94538-5831
Mailing Address2080 Sarasota AveSan Jose, CA 95122-2371
Phone(510) 248-1680
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateAugust 18, 2021
Last NPPES UpdateOctober 16, 20233 updates tracked since enumeration
NPPES CertifiedOctober 16, 2023
✔ NPI 1639845993 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in CA · 95018990
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
39141 CIVIC CENTER DR STE 130, Fremont, CA 94538
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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

Ira Vergara Amayun Bsn, Mph, Dnp, Fnp-c 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 ID8729469127
PECOS Enrollment IDI20220716000389
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

3

Medicare enrollment records show Ira Amayun reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Washington Township Medical Foundation
0.1 mi
Internal Medicine
39300 CIVIC CENTER DR STE 370
Fremont, CA 94538
  • Reassigned Medicare billing, California enrollment
  • 121 clinicians in this Medicare group
NPI 1346557014 (510) 248-1000
County Of San Mateo
18 mi
Multi-Specialty
222 W 39TH AVE
San Mateo, CA 94403
  • Reassigned Medicare billing, California enrollment
  • 430 clinicians in this Medicare group
NPI 1831268580 (650) 573-3702
San Benito Health Foundation
57 mi
Rural Health
351 FELICE DR
Hollister, CA 95023
  • Reassigned Medicare billing, California enrollment
  • 13 clinicians in this Medicare group
NPI 1295810174 (831) 637-5306

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

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
144 services116 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
134 services104 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
17 services17 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
15 services15 patients
Urinalysis, manual test 81002
A urinalysis is a simple, non-invasive test that checks the urine for various elements such as sugar, protein, and signs of infection. It can help detect many common conditions, including kidney disease and diabetes. The manual test involves a lab technician examining a urine sample.
13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94538 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
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
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 2

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

HETALBEN NAGINBHAI VELLANKI FNP
Nurse Practitioner (Family)
39141 CIVIC CENTER DR STE 130
FREMONT, CA 94538
Alameda County (510) 248-1680
SUKHBIR THIND PA
Physician Assistant
39141 CIVIC CENTER DR STE 130
FREMONT, CA 94538
Alameda County (510) 248-1680

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 Ira Amayun's NPI number?

The NPI number for Ira Amayun is 1639845993. It was assigned to this individual provider in the NPPES registry on August 18, 2021.

Where is Ira Amayun located?

Ira Amayun practices at 39141 Civic Center Dr Ste 130, Fremont, CA 94538. The listed phone number is (510) 248-1680.

What is Ira Amayun's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Ira Amayun enrolled in Medicare?

Yes. Ira Amayun 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 organizations bill Medicare for Ira Amayun's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ira Amayun reassigns Medicare benefits to 3 organizations: Washington Township Medical Foundation (Fremont, CA), County Of San Mateo (San Mateo, CA) and San Benito Health Foundation (Hollister, CA). 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 Ira Amayun'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 Ira Amayun was last updated on October 16, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.