DR. KEVIN HAONAN SUN M.D.
NPI 1265726517
Internal Medicine in Irvine, CA
About Dr. Kevin Haonan Sun M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KEVIN HAONAN SUN M.D. (NPI 1265726517) is an individual internal medicine provider in Irvine, California, licensed in California (A125393) and active in the NPI registry since June 2011. He is enrolled in Medicare PECOS, maintains a secondary practice location in Costa Mesa, and is a graduate of University Of Illinois College Of Med (chi/peor/rock/chm-urb) (2011).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Group Practice 1
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
Dr. Kevin Haonan Sun M.d. 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.
Medicare Billing Reassignments
5Medicare enrollment records show Kevin Sun reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Laguna Hills, CA 92653
- Reassigned Medicare billing, California enrollment
- 86 clinicians in this Medicare group
Tustin, CA 92780
- Reassigned Medicare billing, California enrollment
- 2,052 clinicians in this Medicare group
Los Alamitos, CA 90720
- Reassigned Medicare billing, California enrollment
- 228 clinicians in this Medicare group
Fontana, CA 92335
- Reassigned Medicare billing, California enrollment
- 149 clinicians in this Medicare group
Redlands, CA 92373
- Reassigned Medicare billing, California enrollment
- 635 clinicians in this Medicare group
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 92618 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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 Kevin Sun's NPI number?
The NPI number for Kevin Sun is 1265726517. It was assigned to this individual provider in the NPPES registry on June 3, 2011.
Where is Kevin Sun located?
Kevin Sun practices at 11 Technology Dr, Irvine, CA 92618. The listed phone number is (949) 923-3200.
What is Kevin Sun's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Kevin Sun enrolled in Medicare?
Yes. Kevin Sun 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 Kevin Sun's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kevin Sun reassigns Medicare benefits to 5 organizations: Saddleback Medical Group Inc (Laguna Hills, CA), Healthcare Partners Affiliates Medical Group (Tustin, CA), Centers For Family Medicine Gp (Los Alamitos, CA), Pinnacle Medical Group, Inc (Fontana, CA) and Beaver Medical Group P C (Redlands, 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 Kevin 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 Kevin Sun was last updated on January 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Dr. Kevin Haonan Sun, M.D. · NPI 1265726517
Internal Medicine physician in Irvine, California. Individual provider, active in the CMS NPPES registry since June 3, 2011.
## Identity
- **NPI:** 1265726517 (Entity type: Individual)
- **Enumerated:** June 3, 2011
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A125393 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 11 TECHNOLOGY DR, Irvine, CA 92618-2302
- **Phone:** (949) 923-3200
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Saddleback Medical Group Inc (NPI 1386605822, Laguna Hills, CA); Healthcare Partners Affiliates Medical Group (NPI 1891981502, Tustin, CA); Centers For Family Medicine Gp (NPI 1467598243, Los Alamitos, CA); Pinnacle Medical Group, Inc (NPI 1376876912, Fontana, CA); Beaver Medical Group P C (NPI 1649503319, Redlands, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Illinois College Of Med, class of 2011
## Record status
- **NPPES last updated:** January 12, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1265726517) · Data from the CMS NPPES public registry.