DR. JOHN WONG MD
NPI 1659336402
Internal Medicine in Torrance, CA
About Dr. John Wong Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN WONG MD (NPI 1659336402) is an individual internal medicine provider in Torrance, California, licensed in California (A51406) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1991).
NPPES Registry Identity
Specialties & Licenses
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. John Wong 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 John Wong reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Los Angeles, CA 90015
- Reassigned Medicare billing, California enrollment
- 2,052 clinicians in this Medicare group
Chino Hills, CA 91709
- Reassigned Medicare billing, California enrollment
- 5,228 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 90503 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 9
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
TORRANCE, CA 90503
TORRANCE, CA 90503
TORRANCE, CA 90503
TORRANCE, CA 90503
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 John Wong's NPI number?
The NPI number for John Wong is 1659336402. It was assigned to this individual provider in the NPPES registry on April 17, 2006.
Where is John Wong located?
John Wong practices at 19601 Mariner Ave, Torrance, CA 90503. The listed phone number is (310) 214-0811.
What is John Wong's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is John Wong enrolled in Medicare?
Yes. John Wong 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 John Wong's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Wong reassigns Medicare benefits to 2 organizations: Healthcare Partners Affiliates Medical Group (Los Angeles, CA) and Southern California Permanente Medical Group (Chino Hills, 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 John Wong'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 John Wong was last updated on December 1, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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. John Wong, MD · NPI 1659336402
Internal Medicine physician in Torrance, California. Individual provider, active in the CMS NPPES registry since April 17, 2006.
## Identity
- **NPI:** 1659336402 (Entity type: Individual)
- **Enumerated:** April 17, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A51406 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 19601 MARINER AVE, Torrance, CA 90503-1647
- **Phone:** (310) 214-0811
## 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): Healthcare Partners Affiliates Medical Group (NPI 1659312593, Los Angeles, CA); Southern California Permanente Medical Group (NPI 1396287082, Chino Hills, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1991
## Record status
- **NPPES last updated:** December 1, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1659336402) · Data from the CMS NPPES public registry.