Katrina Chin Loy, M.D.
NPI 1871851188 · Ophthalmology Physician · Washington, DC
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katrina Chin Loy, M.D. is a Ophthalmology Physician provider in Washington, DC (NPI 1871851188).
Provider details
- NPI number
- 1871851188
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
14 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
665 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 Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 180 | $142 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 177 | $101 |
| Imaging of Optic Nerve92133 | 49 | $38 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 33 | $599 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 33 | $50 |
| Extended Exam of the Back Part of the Eye With Optic Nerve Drawing92202 | 32 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 425 | 91 |
| Prednisolone Acetate | 134 | 73 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 93 | 26 |
| Azelastine Hcl | 82 | 35 |
| Timolol Maleate | 46 | 12 |
| Brimonidine Tartrate | 45 | 13 |
| Cyclosporine | 37 | — |
| Neomycin/Polymyxin B/Dexametha |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,107 across 19 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
- 2012-04-25
- Last updated
- 2016-07-13
Frequently asked questions
- What is Katrina Chin Loy's NPI number?
- Katrina Chin Loy's National Provider Identifier (NPI) is 1871851188, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katrina Chin Loy's specialty?
- Katrina Chin Loy is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Katrina Chin Loy located?
- Katrina Chin Loy's practice location on file with NPPES is 2041 Georgia Ave Nw, Washington, DC 20060-0001.
- What is Katrina Chin Loy's phone number?
- The practice phone number listed in the NPPES registry for Katrina Chin Loy is (202) 865-4601.
- Does Katrina Chin Loy accept Medicare?
- Katrina Chin Loy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katrina Chin Loy's NPI active?
- Yes — Katrina Chin Loy's NPI (1871851188) is active in the NPPES registry as of the last update on 2016-07-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.