DENNIS TSANG MD
NPI 1639663784
Hospitalist in Huntington Park, CA
About Dennis Tsang Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DENNIS TSANG MD (NPI 1639663784) is an individual hospitalist provider in Huntington Park, California, licensed in California (A163952) and active in the NPI registry since June 2018. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of University Of Southern California Keck School Of Medicine (2018).
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dennis Tsang Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Dennis Tsang reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Alhambra, CA 91801
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Apollomed Hospitalists A Medical Corporation
- 53 clinicians in this Medicare group
Los Angeles, CA 90048
- Reassigned Medicare billing, California enrollment
- 2,118 clinicians in this Medicare group
Pasadena, CA 91105
- Reassigned Medicare billing, California enrollment
- 204 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 3
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 90255 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Dennis Tsang's NPI number?
The NPI number for Dennis Tsang is 1639663784. It was assigned to this individual provider in the NPPES registry on June 20, 2018.
Where is Dennis Tsang located?
Dennis Tsang practices at 6011 Pacific Blvd Ste 116, Huntington Park, CA 90255. The listed phone number is (516) 366-0331.
What is Dennis Tsang's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Dennis Tsang enrolled in Medicare?
Yes. Dennis Tsang is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Dennis Tsang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Dennis Tsang reassigns Medicare benefits to 3 organizations: Astrana Care Hospitalists, A Medical Corporation (Alhambra, CA), Cedars-Sinai Medical Care Foundation (Los Angeles, CA) and The Huntington Medical Foundation (Pasadena, 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 Dennis Tsang'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 Dennis Tsang was last updated on September 19, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Dennis Tsang, MD · NPI 1639663784
Hospitalist physician in Huntington Park, California. Individual provider, active in the CMS NPPES registry since June 20, 2018.
## Identity
- **NPI:** 1639663784 (Entity type: Individual)
- **Enumerated:** June 20, 2018
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** A163952 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 6011 PACIFIC BLVD STE 116, Huntington Park, CA 90255-2959
- **Phone:** (516) 366-0331
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Astrana Care Hospitalists, A Medical Corporation (NPI 1265658595, Alhambra, CA); Cedars-Sinai Medical Care Foundation (NPI 1316984388, Los Angeles, CA); The Huntington Medical Foundation (NPI 1154467181, Pasadena, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Southern California Keck School Of Medicine, class of 2018
## Record status
- **NPPES last updated:** September 19, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1639663784) · Data from the CMS NPPES public registry.