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NING SUN FNP-BC
NPI 1003340977
Nurse Practitioner - Family in Tustin, CA

Active since April 17, 2017PECOS Enrolled
2492 WALNUT AVE STE 100, TUSTIN, CA 92780(714) 709-8000(714) 709-8080 Get Directions Write a Review

NPPES record last updated: March 10, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 10, 2025, Jul 2, 2019, Apr 17, 2017 (3 updates tracked since 2017).

About Ning Sun Fnp-bc NPPES

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

NING SUN FNP-BC (NPI 1003340977) is an individual family provider in Tustin, California, licensed in California (95021590) and active in the NPI registry since April 2017. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1003340977
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameNING SUNCredential: FNP-BC
Location Address2492 WALNUT AVE STE 100Tustin, CA 92780-6953
Mailing Address2492 Walnut Ave Ste 100Tustin, CA 92780-6953 · (714) 709-8000 · Fax (714) 709-8080
Phone(714) 709-8000
Fax(714) 709-8080
Sole ProprietorNo
Enumeration DateApril 17, 2017
Last NPPES UpdateMarch 10, 20253 updates tracked since enumeration
NPPES CertifiedMarch 10, 2025
✔ NPI 1003340977 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 · 95021590
2492 WALNUT AVE STE 100, Tustin, CA 92780
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)

Ning Sun Fnp-bc 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 Reassignments

2

Medicare enrollment records show Ning Sun reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Provider Profile
2,003 mi
Family Medicine
4144 CLEMSON BLVD
Anderson, SC 29621
  • Reassigned Medicare billing, South Carolina enrollment
NPI 1578590790 (864) 224-9598
Trinity Family Practice
2,003 mi
Family Medicine
4144 CLEMSON BLVD
Anderson, SC 29621
  • Reassigned Medicare billing, South Carolina enrollment
  • 2 clinicians in this Medicare group
NPI 1700349784 (864) 224-3332

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 92780 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 6

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

JEREMY LAM M.D.
Internal Medicine
2492 WALNUT AVE STE 100
TUSTIN, CA 92780
Orange County (714) 709-8000
LAM MD
Clinic/Center
2492 WALNUT AVE STE 100
TUSTIN, CA 92780
Orange County (714) 709-8000
DORINE LAM RDN
Dietitian, Registered
2492 WALNUT AVE STE 100
TUSTIN, CA 92780
Orange County (714) 709-8000
CARRIE JASMINE LAM M.D.
Family Medicine
2492 WALNUT AVE STE 100
TUSTIN, CA 92780
Orange County (714) 709-8000
BRITTANI NICHOLE LASKI FNP
Nurse Practitioner (Primary Care)
2492 WALNUT AVE STE 100
TUSTIN, CA 92780
Orange County (714) 709-8000
LAM HEALTH
Clinic/Center
2492 WALNUT AVE STE 100
TUSTIN, CA 92780
Orange County (714) 709-8000

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 Ning Sun's NPI number?

The NPI number for Ning Sun is 1003340977. It was assigned to this individual provider in the NPPES registry on April 17, 2017.

Where is Ning Sun located?

Ning Sun practices at 2492 Walnut Ave Ste 100, Tustin, CA 92780. The listed phone number is (714) 709-8000.

What is Ning Sun's specialty?

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

Is Ning Sun enrolled in Medicare?

Yes. Ning Sun is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Ning Sun's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ning Sun reassigns Medicare benefits to 2 organizations: (Anderson, SC) and Trinity Family Practice (Anderson, SC). 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 Ning Sun'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 Ning Sun was last updated on March 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.