KAREN CHEN MD, MPHIL
NPI 1376076018
Ophthalmology in Honolulu, HI
About Karen Chen Md, Mphil NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KAREN CHEN MD, MPHIL (NPI 1376076018) is an individual ophthalmology provider in Honolulu, Hawaii, licensed in Massachusetts (287665) and active in the NPI registry since April 2017. She is enrolled in Medicare PECOS and is a graduate of Stanford University School Of Medicine (2017).
NPPES Registry Identity
Specialties & Licenses
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
Karen Chen Md, Mphil 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 Karen Chen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Honolulu, HI 96819
- Reassigned Medicare billing, Hawaii enrollment
- 1,187 clinicians in this Medicare group
San Francisco, CA 94116
- Reassigned Medicare billing, California enrollment
- 20,078 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 96814 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 20
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 Karen Chen's NPI number?
The NPI number for Karen Chen is 1376076018. It was assigned to this individual provider in the NPPES registry on April 10, 2017.
Where is Karen Chen located?
Karen Chen practices at 1010 Pensacola St, Honolulu, HI 96814. The listed phone number is (808) 432-2000.
What is Karen Chen's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Karen Chen enrolled in Medicare?
Yes. Karen 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 Karen Chen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karen Chen reassigns Medicare benefits to 2 organizations: Hawaii Permanente Medical Group Inc (Honolulu, HI) and Permanente Medical Group Inc (San Francisco, 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 Karen 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 Karen Chen was last updated on March 23, 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.
# Karen Chen, MD, MPHIL · NPI 1376076018
Ophthalmology physician in Honolulu, Hawaii. Individual provider, active in the CMS NPPES registry since April 10, 2017.
## Identity
- **NPI:** 1376076018 (Entity type: Individual)
- **Enumerated:** April 10, 2017
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **State license:** 287665 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1010 PENSACOLA ST, Honolulu, HI 96814-2118
- **Phone:** (808) 432-2000
## 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): Hawaii Permanente Medical Group Inc (NPI 1710945969, Honolulu, HI); Permanente Medical Group Inc (NPI 1841373800, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Stanford University School Of Medicine, class of 2017
## Record status
- **NPPES last updated:** March 23, 2023
---
Source: [NPI Profile](https://npiprofile.com/npi/1376076018) · Data from the CMS NPPES public registry.