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NELSON IVAN AGUINAGA RN, FNP
NPI 1043909609
Nurse Practitioner - Family in Fullerton, CA

Active since May 01, 2023PECOS Enrolled
101 E VALENCIA MESA DR, FULLERTON, CA 92835(714) 871-3280 Get Directions Write a Review

NPPES record last updated: May 1, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Nelson Ivan Aguinaga Rn, Fnp NPPES

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

NELSON IVAN AGUINAGA RN, FNP (NPI 1043909609) is an individual family provider in Fullerton, California, licensed in California (95024052) and active in the NPI registry since May 2023. He is enrolled in Medicare PECOS and is a graduate of Other (2023).

NPPES Registry Identity

NPI1043909609
Entity TypeIndividualMale
Primary Taxonomy363LF0000X
Provider Legal NameNELSON IVAN AGUINAGACredential: RN, FNP
Location Address101 E VALENCIA MESA DRFullerton, CA 92835-3809
Mailing Address12163 Serra AveChino, CA 91710-2325 · (909) 248-6323
Phone(714) 871-3280
Sole ProprietorYes
Medical School CMSOtherGraduated 2023
Enumeration DateMay 1, 2023
NPPES CertifiedApril 28, 2023
✔ NPI 1043909609 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in CA · 95024052
101 E VALENCIA MESA DR, Fullerton, CA 92835
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 (PECOS)

Nelson Ivan Aguinaga Rn, Fnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID9032682174
PECOS Enrollment IDI20260622000215
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 Nelson Aguinaga reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Raincross Medical Group Inc
32 mi
Family Medicine
4646 BROCKTON AVE
Riverside, CA 92506
  • Reassigned Medicare billing, California enrollment
  • 8 clinicians in this Medicare group
NPI 1194712315 (951) 774-2881

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 92835 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 20

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

PIUS J. KIM M.D.
Internal Medicine
101 E VALENCIA MESA DR
FULLERTON, CA 92835
Orange County (714) 447-5027
PARAM WALIA MD NEUROSCIENCES SERVICES CORPORATION
Neurological Surgery
101 E VALENCIA MESA DR
FULLERTON, CA 92835
Orange County (714) 446-5830
JOHN BYRON MACCARTHY MD
Anesthesiology
101 E VALENCIA MESA DR
FULLERTON, CA 92835
Orange County (714) 871-3280
SHAYNA NIKOL SMITH
Nurse Practitioner (Adult Health)
101 E VALENCIA MESA DR
FULLERTON, CA 92835
Orange County (714) 992-3943
GLORIA LYNN FRANKLIN NP MSN
Nurse Practitioner (Family)
101 E VALENCIA MESA DR
FULLERTON, CA 92835
Orange County (909) 717-9589
DR. MARTIN JOSEPH BREEN JR. PHARM.D.
Pharmacist (Pharmacotherapy)
101 E VALENCIA MESA DR
FULLERTON, CA 92835
Orange County (714) 992-3143
DR. MAXIMILIAN ALEXANDER GOEBEL M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
101 E VALENCIA MESA DR
FULLERTON, CA 92835
Orange County (714) 446-7505
DR. JONATHON AHN MD
Anesthesiology
101 E VALENCIA MESA DR
FULLERTON, CA 92835
Orange County (714) 871-3280

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 Nelson Aguinaga's NPI number?

The NPI number for Nelson Aguinaga is 1043909609. It was assigned to this individual provider in the NPPES registry on May 1, 2023.

Where is Nelson Aguinaga located?

Nelson Aguinaga practices at 101 E Valencia Mesa Dr, Fullerton, CA 92835. The listed phone number is (714) 871-3280.

What is Nelson Aguinaga's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Nelson Aguinaga enrolled in Medicare?

Yes. Nelson Aguinaga is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Nelson Aguinaga's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nelson Aguinaga reassigns Medicare benefits to Raincross Medical Group Inc (Riverside, 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 Nelson Aguinaga'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 Nelson Aguinaga was last updated on May 1, 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.