1. Home
  2. Directory
  3. California
  4. San Diego
  5. Nurse Practitioner
  6. NPI Profile

GILLIAN LOIS ORTEZA MSN, FNP-C
NPI 1649162330
Nurse Practitioner - Family in San Diego, CA

Active since July 17, 2025PECOS EnrolledAccepts Medicare Assignment
404 CAMINO DEL RIO S STE 102, SAN DIEGO, CA 92108(800) 316-6314 Get Directions Write a Review

NPPES record last updated: July 17, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Gillian Lois Orteza Msn, Fnp-c NPPES

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

GILLIAN LOIS ORTEZA MSN, FNP-C (NPI 1649162330) is an individual family provider in San Diego, California, licensed in Nevada (F07250639) and active in the NPI registry since July 2025. She is enrolled in Medicare PECOS and is a graduate of Other (2024).

NPPES Registry Identity

NPI1649162330
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameGILLIAN LOIS ORTEZACredential: MSN, FNP-C
Location Address404 CAMINO DEL RIO S STE 102San Diego, CA 92108-3586
Mailing Address404 Camino Del Rio S Ste 102San Diego, CA 92108-3586
Phone(800) 316-6314
Sole ProprietorYes
Medical School CMSOtherGraduated 2024
Enumeration DateJuly 17, 2025
NPPES CertifiedJuly 17, 2025
✔ NPI 1649162330 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 NV · F07250639
404 CAMINO DEL RIO S STE 102, San Diego, CA 92108
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

Gillian Lois Orteza Msn, 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 ID7113401415
PECOS Enrollment IDI20260325000407
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 Gillian Lois Orteza reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Pioneer Health Care LLC
259 mi
Internal Medicine
3540 W SAHARA AVE, SUITE 330
Las Vegas, NV 89102
  • Reassigned Medicare billing, Nevada enrollment
  • 56 clinicians in this Medicare group
NPI 1588681332 (702) 921-6823

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 92108 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.

Other Providers at the Same Location NPPES 14

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

SANDEEP KAUR
Nurse Practitioner (Family)
404 CAMINO DEL RIO S STE 102
SAN DIEGO, CA 92108
San Diego County (800) 316-6314
ANGELINA STEFANICK
Student in an Organized Health Care Education/Training Program
404 CAMINO DEL RIO S STE 102
SAN DIEGO, CA 92108
San Diego County (800) 316-6314
LATOYA MICHAELE ROBERSON FNP-BC
Nurse Practitioner (Family)
404 CAMINO DEL RIO S STE 102
SAN DIEGO, CA 92108
San Diego County (855) 313-0885
MARY VAL DAVID KOHISTANI FNP
Nurse Practitioner (Family)
404 CAMINO DEL RIO S STE 102
SAN DIEGO, CA 92108
San Diego County (800) 316-6314
KEEZIA YSABEL MARTINEZ ANTAKLI NP
Nurse Practitioner (Family)
404 CAMINO DEL RIO S STE 102
SAN DIEGO, CA 92108
San Diego County (855) 313-0885
JAYAHMIE DRIO TOLENTINO
Nurse Practitioner (Family)
404 CAMINO DEL RIO S STE 102
SAN DIEGO, CA 92108
San Diego County (800) 316-6314
NICOLE ANN CRUZ DUMANGAN FNP-C
Nurse Practitioner (Primary Care)
404 CAMINO DEL RIO S STE 102
SAN DIEGO, CA 92108
San Diego County (800) 316-6314
JENNIFER ERIN FREITAS MSN, APRN, FNP-C
Nurse Practitioner (Family)
404 CAMINO DEL RIO S STE 102
SAN DIEGO, CA 92108
San Diego County (800) 316-6314

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 Gillian Lois Orteza's NPI number?

The NPI number for Gillian Lois Orteza is 1649162330. It was assigned to this individual provider in the NPPES registry on July 17, 2025.

Where is Gillian Lois Orteza located?

Gillian Lois Orteza practices at 404 Camino Del Rio S Ste 102, San Diego, CA 92108. The listed phone number is (800) 316-6314.

What is Gillian Lois Orteza's specialty?

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

Is Gillian Lois Orteza enrolled in Medicare?

Yes. Gillian Lois Orteza 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 Gillian Lois Orteza's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gillian Lois Orteza reassigns Medicare benefits to Pioneer Health Care LLC (Las Vegas, NV). 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 Gillian Lois Orteza'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 Gillian Lois Orteza was last updated on July 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.