DR. MATTHEW S TAN M.D.
NPI 1295758126
General Practice in Los Angeles, CA
About Dr. Matthew S Tan M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MATTHEW S TAN M.D. (NPI 1295758126) is an individual general practice provider in Los Angeles, California, licensed in California (G19327) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Matthew S Tan M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Matthew Tan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Los Angeles, CA 90033
- Reassigned Medicare billing, California enrollment
- 7 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.
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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
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 Matthew Tan's NPI number?
The NPI number for Matthew Tan is 1295758126. It was assigned to this individual provider in the NPPES registry on July 25, 2006.
Where is Matthew Tan located?
Matthew Tan practices at 1701 E Cesar E Chavez Ave Suite 300, Los Angeles, CA 90033. The listed phone number is (323) 264-2633.
What is Matthew Tan's specialty?
The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.
Is Matthew Tan enrolled in Medicare?
Yes. Matthew Tan is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Matthew Tan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Tan reassigns Medicare benefits to Surgical Multispecialties 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 Matthew Tan'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 Matthew Tan was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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. Matthew S Tan, M.D. · NPI 1295758126
General Practice physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since July 25, 2006.
## Identity
- **NPI:** 1295758126 (Entity type: Individual)
- **Enumerated:** July 25, 2006
- **Primary specialty:** General Practice · taxonomy 208D00000X
- **State license:** G19327 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1701 E CESAR E CHAVEZ AVE, SUITE 300, Los Angeles, CA 90033-2464
- **Phone:** (323) 264-2633 · **Fax:** (323) 224-2790
## 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:** Surgical Multispecialties Medical Group (NPI 1659385599, Los Angeles, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Medicare UPIN D71505 (CA); Medicare ID-Type Unspecified WG19327A (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1295758126) · Data from the CMS NPPES public registry.