SUNG JUN SON MD
NPI 1134701592
Student in an Organized Health Care Education/Training Program in Torrance, CA
About Sung Jun Son Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SUNG JUN SON MD (NPI 1134701592) is an individual student in an organized health care education/training program in Torrance, California and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS, is affiliated with Newton-wellesley Hospital, and maintains a secondary practice location in Boston.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Accepted Insurance
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
Sung Jun Son Md 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
2Medicare enrollment records show Sung Jun Son reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,360 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Newton-Wellesley Hospital
Acute Care Hospitals · Newton, MAOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
TORRANCE, CA 90502
TORRANCE, CA 90502
TORRANCE, CA 90502
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 Sung Jun Son's NPI number?
The NPI number for Sung Jun Son is 1134701592. It was assigned to this individual provider in the NPPES registry on April 26, 2021.
Where is Sung Jun Son located?
Sung Jun Son practices at 1000 W Carson St, Torrance, CA 90502. The listed phone number is (310) 222-2345.
What is Sung Jun Son's specialty?
The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.
Is Sung Jun Son enrolled in Medicare?
Yes. Sung Jun Son 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 Sung Jun Son's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sung Jun Son reassigns Medicare benefits to 2 organizations: Massachusetts General Physicians Organization Inc (Boston, MA) and The General Hospital Corporation (Boston, MA). 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 Sung Jun Son's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sung Jun Son accept?
Health plans from Anthem Blue Cross and Blue Shield list Sung Jun Son as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Sung Jun Son affiliated with any hospitals?
According to CMS data, Sung Jun Son is affiliated with Newton-Wellesley Hospital.
When was this NPI record last updated?
The NPPES record for Sung Jun Son was last updated on April 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Sung Jun Son, MD · NPI 1134701592
Student in an Organized Health Care Education/Training Program provider in Torrance, California. Individual provider, active in the CMS NPPES registry since April 26, 2021.
## Identity
- **NPI:** 1134701592 (Entity type: Individual)
- **Enumerated:** April 26, 2021
- **Primary specialty:** Student in an Organized Health Care Education/Training Program · taxonomy 390200000X
- **Sole proprietor:** No
## Practice location
- **Address:** 1000 W CARSON ST, Torrance, CA 90502-2004
- **Phone:** (310) 222-2345
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA); The General Hospital Corporation (NPI 1023049236, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Boston University School Of Medicine, class of 2021
## Record status
- **NPPES last updated:** April 1, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1134701592) · Data from the CMS NPPES public registry.