Karen Chen, MD, MPHIL
NPI 1376076018 · Ophthalmology Physician · Honolulu, HI
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Chen, MD, MPHIL is a Ophthalmology Physician provider in Honolulu, HI (NPI 1376076018).
Provider details
- NPI number
- 1376076018
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, MPHIL
- Sex
- Female
- Sole proprietor
- Yes
- License
- 287665 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
9 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
25 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Problem Focused Exam of Visual System92012 | 25 | $86 |
Typical Medicare-allowed amounts for these services range $86–$86 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 389 | 217 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 334 | 121 |
| Prednisolone Acetate | 230 | 107 |
| Brimonidine Tartrate | 179 | 79 |
| Timolol Maleate | 166 | 85 |
| Diclofenac Sodium | 115 | 61 |
| Netarsudil Mesylatebrand: Rhopressa | 97 | 29 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$585 across 10 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-04-10
- Last updated
- 2023-03-23
- Certified
- 2023-03-23
Frequently asked questions
- What is Karen Chen's NPI number?
- Karen Chen's National Provider Identifier (NPI) is 1376076018, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Chen's specialty?
- Karen Chen is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Chen located?
- Karen Chen's practice location on file with NPPES is 1010 Pensacola St, Honolulu, HI 96814-2118.
- What is Karen Chen's phone number?
- The practice phone number listed in the NPPES registry for Karen Chen is (808) 432-2000.
- Does Karen Chen accept Medicare?
- Karen Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Chen's NPI active?
- Yes — Karen Chen's NPI (1376076018) is active in the NPPES registry as of the last update on 2023-03-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.