Katrina C. Chin Loy, M.D.
Ophthalmology Physician · Washington, DC
Katrina C. Chin Loy, M.D. is an ophthalmology physician with a practice address in Washington, District of Columbia, and NPI 1871851188, issued on Apr 25, 2012. Check the license (District of Columbia MD044463, as entered in NPPES) on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Katrina C. Chin Loy
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- MD044463 DC
Self-reported in NPPES; status is on the state search - Practice location
- 2041 Georgia Ave NW, Washington, DC 20060
- Phone
- (202) 865-4601
- Enumerated
- Apr 25, 2012
- Record last updated
- Jul 13, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20160919001437); accepts Medicare assignment
- Medical or professional school
- Howard University College Of Medicine, 2012
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 89 in District of Columbia → Look up another NPI →
Also registered at 2041 Georgia Ave NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Katrina C. Chin Loy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDistrict of Columbia Board of Medicine
Search for license MD044463Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
32% fewer Medicare Part D claims than the average ophthalmology physician in 2024
1,026 Medicare Part D claims for 217 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 31% of claims.
Most prescribed
- Latanoprost425 claims
- Prednisolone Acetate134 claims
- Dorzolamide-Timolol93 claims
- Azelastine Hcl82 claims
- Timolol Maleate46 claims
- Brimonidine Tartrate45 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,106.81
19 payments; by number, the most common kind was food and beverage; the largest payer was Glaukos Corporation. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Howard UniversityWashington, DC
- Visionmd, LLCGlenn Dale, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katrina C. Chin Loy among 89 ophthalmology physician records in District of Columbia
Katrina C. Chin Loy, M.D. is one of 89 ophthalmology physician records with a practice address in District of Columbia. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 78% of them.
- NPI issued2012 · 78% of these records are older, 19% newer
- In a Medicare fileYes · 64% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2012 · median 1998 among the 51 with a school on file
- Record last updated2016 · 72% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a District of Columbia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in District of Columbia
There are 89 ophthalmology physician records in District of Columbia.
All 89 in District of Columbia → Every provider in Washington → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Heidi Bowie, ODWashington, DC 200601952355513
- Leslie Jones, MDWashington, DC 200601790894772
- Jiali MaWashington, DC 200601245819952
- Saima Qureshi, M.D.Washington, DC 200601003137480
- Salman Yousuf, D.O.Washington, DC 200601669600649
- Ruth Tessema, MDWashington, DC 200591891222899
- Christabel Chan, MDWashington, DC 200371578207528
- Monica Dalal, M.D.Washington, DC 200371164625562
Common questions
What is Katrina C. Chin Loy, M.D.'s NPI number?
Katrina C. Chin Loy, M.D.'s National Provider Identifier (NPI) is 1871851188, issued on Apr 25, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Katrina C. Chin Loy, M.D. located?
The NPPES record lists a practice address at 2041 Georgia Ave NW, Washington, DC, 20060. Phone: (202) 865-4601. Providers update this record themselves, so call before visiting.
How can I verify Katrina C. Chin Loy, M.D.'s license?
NPPES lists District of Columbia license number MD044463, as entered by the provider. Search the District of Columbia Board of Medicine at https://dchealth.dc.gov/bomed. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Katrina C. Chin Loy, M.D. prescribe under Medicare Part D?
In 2024, Katrina C. Chin Loy, M.D. had 1,026 Medicare Part D claims for 217 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.