Katrina C. Chin Loy, MD

Medicare activity in 2024

Official CMS public-use data for Katrina C. Chin Loy, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)180 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)177 services
3. Imaging of optic nerve (92133)49 services
4. Removal of cataract with insertion of prosthetic lens (66984)33 services
5. Measurement of corneal curvature and depth of eye (92136)33 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High blood pressure75%
• High cholesterol69%
• Diabetes46%
• Arthritis35%
• Chronic kidney disease25%
• Ischemic heart disease16%

Hospitals where Katrina C. Chin Loy works

Medicare's Facility Affiliation Data lists Katrina C. Chin Loy at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Howard University Hospital CorpWashington, DC · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: not listed by Medicare · CCN 090003

Practice locations

Addresses where Katrina C. Chin Loy is enrolled with Medicare (CMS data updated October 2, 2026).

• 12150 Annapolis Rd, Suite 111Glenn Dale, MD 20769 (301) 779‑0844
• 2041 Georgia NW AveWashington, DC 20060 (202) 865‑6679

Group practices

Medicare enrollment lists Katrina C. Chin Loy as a member of these groups (CMS data updated October 2, 2026).

• Howard University181 clinicians in the group
• Visionmd, LLC4 clinicians in the group

Specialties

• Ophthalmologyprimary

Find other Ophthalmology doctors in Maryland →

Other ophthalmologists in Glenn Dale

Clinicians with the same Medicare primary specialty in Glenn Dale, MD — not a recommendation.

• Parag Gandhi, MD
• Renee C. Bovelle, MD
• Alisa Thavikulwat, MD
• Saya V. Nagori, MD

All ophthalmologists in Glenn Dale →

Other clinicians in Howard University

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Ebony F. Caldwell, MD
• Vishal A. Poddar, MD
• Danielle Hairston, MD
• Mica D. Grantham, MD
• Noor Malik, MD
• Kristine Dettloff, MD

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians