SUSAN SUN NP
NPI 1598122848
Clinic/Center in Montebello, CA
About Susan Sun Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SUSAN SUN NP (NPI 1598122848) is an individual clinic/center provider in Montebello, California, licensed in California (95003393) and active in the NPI registry since January 2016. She is enrolled in Medicare PECOS and maintains a secondary practice location in Pasadena.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Susan Sun Np is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Susan Sun reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Pasadena, CA 91105
- Reassigned Medicare billing, California enrollment
- 204 clinicians in this Medicare group
Los Angeles, CA 90015
- Reassigned Medicare billing, California enrollment
- 2,052 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 90640 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 14
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MONTEBELLO, CA 90640
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 Susan Sun's NPI number?
The NPI number for Susan Sun is 1598122848. It was assigned to this individual provider in the NPPES registry on January 18, 2016.
Where is Susan Sun located?
Susan Sun practices at 2603 Via Campo, Montebello, CA 90640. The listed phone number is (323) 720-1144.
What is Susan Sun's specialty?
The primary specialty registered for this NPI is Clinic/Center with taxonomy code 261Q00000X.
Is Susan Sun enrolled in Medicare?
Yes. Susan Sun is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Susan Sun's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Susan Sun reassigns Medicare benefits to 2 organizations: The Huntington Medical Foundation (Pasadena, CA) and Healthcare Partners Affiliates Medical Group (Los Angeles, 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 Susan 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 Susan 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.
# Susan Sun, NP · NPI 1598122848
Clinic/Center provider in Montebello, California. Individual provider, active in the CMS NPPES registry since January 18, 2016.
## Identity
- **NPI:** 1598122848 (Entity type: Individual)
- **Enumerated:** January 18, 2016
- **Primary specialty:** Clinic/Center · taxonomy 261Q00000X
- **State license:** 95003393 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2603 VIA CAMPO, Montebello, CA 90640-1807
- **Phone:** (323) 720-1144
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): The Huntington Medical Foundation (NPI 1154467181, Pasadena, CA); Healthcare Partners Affiliates Medical Group (NPI 1659312593, Los Angeles, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 12, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1598122848) · Data from the CMS NPPES public registry.