MISS KATHERINE GRACE CHEN MS
NPI 1699237420
Ophthalmology in Irvine, CA
About Miss Katherine Grace Chen Ms NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MISS KATHERINE GRACE CHEN MS (NPI 1699237420) is an individual ophthalmology provider in Irvine, California, licensed in California (A184907) and active in the NPI registry since April 2019. She is enrolled in Medicare PECOS and is a graduate of University Of California, Irvine, California College Of Medicine (2019).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
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
Miss Katherine Grace Chen Ms 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.
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- 113 clinicians in this Medicare group
Oakland, CA 94612
- Reassigned Medicare billing, California enrollment
- 6 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 10
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 92697 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 9
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
IRVINE, CA 92697
IRVINE, CA 92697
IRVINE, CA 92697
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 1699237420. It was assigned to this individual provider in the NPPES registry on April 1, 2019.
Where is Katherine Chen located?
Katherine Chen practices at 850 Health Sciences Rd, Irvine, CA 92697. The listed phone number is (949) 824-7105.
What is Katherine Chen's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
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: Regents Of The University Of California (Orange, CA) and Eye Physicians Of The East Bay Medical Corporation (Oakland, 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.
What insurance does Katherine Chen accept?
Health plans from Providence Health Plan list Katherine Chen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Katherine Chen was last updated on May 8, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Miss Katherine Grace Chen, MS · NPI 1699237420
Ophthalmology physician in Irvine, California. Individual provider, active in the CMS NPPES registry since April 1, 2019.
## Identity
- **NPI:** 1699237420 (Entity type: Individual)
- **Enumerated:** April 1, 2019
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **State license:** A184907 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 850 HEALTH SCIENCES RD, Irvine, CA 92697-7242
- **Phone:** (949) 824-7105
## 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): Regents Of The University Of California (NPI 1871541953, Orange, CA); Eye Physicians Of The East Bay Medical Corporation (NPI 1629014618, Oakland, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Irvine, California College Of Medicine, class of 2019
## Record status
- **NPPES last updated:** May 8, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1699237420) · Data from the CMS NPPES public registry.