KATHERINE LAURA CHEN M.D.
NPI 1275928525
Internal Medicine in Los Angeles, CA
About Katherine Laura Chen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KATHERINE LAURA CHEN M.D. (NPI 1275928525) is an individual internal medicine provider in Los Angeles, California, licensed in California (A145346) and active in the NPI registry since April 2015. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of University Of California, Geffen School Of Medicine (2015).
NPPES Registry Identity
Specialties & Licenses
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 and accepts Medicare assignment
Katherine Laura Chen M.d. 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 Katherine Chen 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 90095
- Reassigned Medicare billing, California enrollment
- 1,766 clinicians in this Medicare group
Los Angeles, CA 90048
- Reassigned Medicare billing, California enrollment
- 1,001 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
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 90095 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 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LOS ANGELES, CA 90095
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 Katherine Chen's NPI number?
The NPI number for Katherine Chen is 1275928525. It was assigned to this individual provider in the NPPES registry on April 3, 2015.
Where is Katherine Chen located?
Katherine Chen practices at 200 Medical Plaza Suite 420, Los Angeles, CA 90095. The listed phone number is (310) 206-6232.
What is Katherine Chen's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Katherine Chen enrolled in Medicare?
Yes. Katherine Chen 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 Katherine Chen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Chen reassigns Medicare benefits to 2 organizations: The Regents Of The University Of California (Los Angeles, CA) and Cedars-Sinai Medical Center (Los Angeles, 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 Katherine Chen'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 Katherine Chen was last updated on October 11, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Katherine Laura Chen, M.D. · NPI 1275928525
Internal Medicine physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since April 3, 2015.
## Identity
- **NPI:** 1275928525 (Entity type: Individual)
- **Enumerated:** April 3, 2015
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A145346 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 200 MEDICAL PLAZA SUITE 420, Los Angeles, CA 90095-0001
- **Phone:** (310) 206-6232 · **Fax:** (310) 206-3551
## 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): The Regents Of The University Of California (NPI 1235107566, Los Angeles, CA); Cedars-Sinai Medical Center (NPI 1639172372, Los Angeles, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Geffen School Of Medicine, class of 2015
## Record status
- **NPPES last updated:** October 11, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1275928525) · Data from the CMS NPPES public registry.