JUDY LYNN CHEN
NPI 1801240916
Ophthalmology - Uveitis and Ocular Inflammatory Disease in Pasadena, CA
About Judy Lynn Chen NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JUDY LYNN CHEN (NPI 1801240916) is an individual uveitis and ocular inflammatory disease provider in Pasadena, California, licensed in California (A168479) and active in the NPI registry since April 2016. She is enrolled in Medicare PECOS, maintains a secondary practice location in Los Angeles, and is a graduate of University Of California, Geffen School Of Medicine (2016).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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
Judy Lynn Chen 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 Judy 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
- 123 clinicians in this Medicare group
Sacramento, CA 95817
- Reassigned Medicare billing, California enrollment
- 2,570 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 13
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 91105 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 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Judy Chen's NPI number?
The NPI number for Judy Chen is 1801240916. It was assigned to this individual provider in the NPPES registry on April 15, 2016.
Where is Judy Chen located?
Judy Chen practices at 625 S Fair Oaks Ave Ste 227, Pasadena, CA 91105. The listed phone number is (626) 817-4747.
What is Judy Chen's specialty?
The primary specialty registered for this NPI is Ophthalmology, specializing in Uveitis and Ocular Inflammatory Disease, with taxonomy code 207WX0108X.
Is Judy Chen enrolled in Medicare?
Yes. Judy 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 Judy Chen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Judy Chen reassigns Medicare benefits to 2 organizations: Jules Stein Eye Institute Medical Group (Los Angeles, CA) and Regents Of The Univ Of Ca (Sacramento, 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 Judy 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 Judy Chen was last updated on January 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.
# Judy Lynn Chen · NPI 1801240916
Uveitis and Ocular Inflammatory Disease physician in Pasadena, California. Individual provider, active in the CMS NPPES registry since April 15, 2016.
## Identity
- **NPI:** 1801240916 (Entity type: Individual)
- **Enumerated:** April 15, 2016
- **Primary specialty:** Ophthalmology - Uveitis and Ocular Inflammatory Disease · taxonomy 207WX0108X
- **State license:** A168479 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 625 S FAIR OAKS AVE STE 227, Pasadena, CA 91105-2688
- **Phone:** (626) 817-4747
## 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): Jules Stein Eye Institute Medical Group (NPI 1326006966, Los Angeles, CA); Regents Of The Univ Of Ca (NPI 1447423959, Sacramento, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Geffen School Of Medicine, class of 2016
## Record status
- **NPPES last updated:** January 22, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1801240916) · Data from the CMS NPPES public registry.