JUSTIN TRUNG DO DO
NPI 1952861049
Internal Medicine - Endocrinology, Diabetes & Metabolism in Monterey Park, CA
About Justin Trung Do Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JUSTIN TRUNG DO DO (NPI 1952861049) is an individual endocrinology, diabetes & metabolism provider in Monterey Park, California, licensed in California (20A19512) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS.
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 (PECOS)
Justin Trung Do Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Justin Do reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
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.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91754 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MONTEREY PARK, CA 91754
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 Justin Do's NPI number?
The NPI number for Justin Do is 1952861049. It was assigned to this individual provider in the NPPES registry on March 23, 2019.
Where is Justin Do located?
Justin Do practices at 880 S Atlantic Blvd Ste 101, Monterey Park, CA 91754. The listed phone number is (626) 281-6969.
What is Justin Do's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.
Is Justin Do enrolled in Medicare?
Yes. Justin Do is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Justin Do's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Justin Do reassigns Medicare benefits to Healthcare Partners Affiliates Medical Group (Los Angeles, CA). The 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 Justin Do'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 Justin Do was last updated on August 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Justin Trung Do, DO · NPI 1952861049
Endocrinology, Diabetes & Metabolism physician in Monterey Park, California. Individual provider, active in the CMS NPPES registry since March 23, 2019.
## Identity
- **NPI:** 1952861049 (Entity type: Individual)
- **Enumerated:** March 23, 2019
- **Primary specialty:** Internal Medicine - Endocrinology, Diabetes & Metabolism · taxonomy 207RE0101X
- **State license:** 20A19512 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 880 S ATLANTIC BLVD STE 101, Monterey Park, CA 91754-4772
- **Phone:** (626) 281-6969
## 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:** Healthcare Partners Affiliates Medical Group (NPI 1659312593, Los Angeles, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 6, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1952861049) · Data from the CMS NPPES public registry.