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GREGORY THOMAS ASNON FNP-C
NPI 1861258352
Nurse Practitioner - Family in Rolling Hills Estates, CA

Active since February 22, 2024PECOS Enrolled
4 GOLDRING PL, ROLLING HILLS ESTATES, CA 90274(949) 322-7112 Get Directions Write a Review

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

About Gregory Thomas Asnon Fnp-c NPPES

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

GREGORY THOMAS ASNON FNP-C (NPI 1861258352) is an individual family provider in Rolling Hills Estates, California, licensed in California (95026984) and active in the NPI registry since February 2024. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1861258352
Entity TypeIndividualMale
Primary Taxonomy363LF0000X
Provider Legal NameGREGORY THOMAS ASNONCredential: FNP-C
Location Address4 GOLDRING PLRolling Hills Estates, CA 90274-2505
Mailing Address4 Goldring PlRolling Hills Estates, CA 90274-2505 · (949) 322-7112
Phone(949) 322-7112
Sole ProprietorYes
Enumeration DateFebruary 22, 2024
Last NPPES UpdateJanuary 28, 2025
NPPES CertifiedJanuary 28, 2025
✔ NPI 1861258352 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 · 95026984
4 GOLDRING PL, Rolling Hills Estates, CA 90274
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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 (PECOS)

Gregory Thomas Asnon Fnp-c is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Gregory Asnon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Torrance Health Association Inc
1.8 mi
Family Medicine
3333 SKYPARK DR, SUITE 100
Torrance, CA 90505
  • Reassigned Medicare billing, California enrollment
  • 388 clinicians in this Medicare group
NPI 1083903124 (310) 784-6300

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 90274 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 Gregory Asnon's NPI number?

The NPI number for Gregory Asnon is 1861258352. It was assigned to this individual provider in the NPPES registry on February 22, 2024.

Where is Gregory Asnon located?

Gregory Asnon practices at 4 Goldring Pl, Rolling Hills Estates, CA 90274. The listed phone number is (949) 322-7112.

What is Gregory Asnon's specialty?

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

Is Gregory Asnon enrolled in Medicare?

Yes. Gregory Asnon is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Gregory Asnon's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Asnon reassigns Medicare benefits to Torrance Health Association Inc (Torrance, 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 Gregory Asnon'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 Gregory Asnon was last updated on January 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.