Dr. Katrina C. Chin Loy, MD
- Medicare services, 2024
- 665
- Medicare patients, 2024
- 314
- Part D claims, 2024
- 1,026
- Hospital affiliations
- 1
- Industry payments
- $7,694
- Practice address
- 2041 Georgia Ave NW, Washington, DC 20060
- Practice phone
- Call (202) 745-6100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Chin Loy's professional email, personal email and mobile number
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Dr. Katrina C. Chin Loy is an ophthalmologist in Washington, District of Columbia
Dr. Chin Loy practices at Howard University Hospital in Washington, District of Columbia, part of Howard University.
Dr. Chin Loy's NPI, 1871851188, was assigned on April 25, 2012. Dr. Chin Loy graduated from Howard University College of Medicine in 2012. Dr. Chin Loy holds District of Columbia license MD044463.
- NPI
- 1871851188NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1557653995
- NPI enumeration date
- April 25, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (202) 745-6100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Katrina C. Chin Loy practices at Howard University Hospital in Washington, District of Columbia
Dr. Chin Loy's primary practice is Howard University Hospital, at 2041 Georgia Ave NW, Washington, DC 20060 in The District County. The practice phone is (202) 745-6100.
- Howard University Hospital2041 Georgia Ave NW, Washington, DC 20060 · The District CountyPhone(202) 745-6100
Source: Dmand AI Affiliation Data
Dr. Katrina C. Chin Loy is affiliated with 2 sites of care and 2 medical groups
Dr. Chin Loy's primary practice is Howard University Hospital in Washington, District of Columbia, part of Howard University. The medical group on file is Howard University Faculty Practice Plan. Dmand AI also links Dr. Chin Loy to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Katrina C. Chin Loy's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chin Loy practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Howard University Hospital | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Howard University and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Katrina C. Chin Loy is one of 87 ophthalmologists in District of Columbia
Ophthalmology is Dr. Chin Loy's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Chin Loy is licensed in District of Columbia.
Specialties and state licenses
- Ophthalmology, District of ColumbiaPrimary
Ophthalmologists near Dr. Chin Loy
Counts of ophthalmologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Katrina C. Chin Loy billed Medicare for 665 services in 2024
CMS data shows 665 Medicare services from Dr. Chin Loy across 13 procedure codes in 2024, for 314 Medicare patients. Medicare paid $54,430 for them.
Dr. Chin Loy's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3472024: 43024%
- Tests and treatments
- 2023: 2152024: 2026%
- Surgery
- 2023: 332024: 33No change
Where Dr. Chin Loy's Medicare services took place, 2024
- In an office63295%
- In a facility335%
Dr. Chin Loy compared with the District of Columbia median for ophthalmologists, 2024
- Dr. Chin Loy
- District of Columbia median
- Medicare services
- 665vs 672Close to median
- Medicare patients
- 314vs 3418% below
- Part D claims
- 958vs 1835.2 times
Medians across 72 ophthalmologists in District of Columbia with Dmand AI profiles that report each measure.
Dr. Chin Loy's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Chin Loy?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chin Loy and other ophthalmologists in District of Columbia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Katrina C. Chin Loy treated 314 Medicare patients in 2024, average age 72
CMS counts 314 Medicare patients who saw Dr. Chin Loy in 2024. The largest group is 65 to 74, with 157 patients. 75% of them have high blood pressure, and 69% have high cholesterol. 50% are also on Medicaid. Their average risk score is 1.17, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chin Loy's median patient age at 63, with 64% women.
Dr. Chin Loy's Medicare patients by age, 2024
Dr. Chin Loy's Medicare patients by sex, 2024
- Women20565%
- Men10935%
Chronic conditions among Dr. Chin Loy's Medicare patients, 2024
- High blood pressure75%
- High cholesterol69%
- Diabetes46%
- Arthritis35%
- Chronic kidney disease25%
- Mood disorders17%
- Ischemic heart disease16%
- Asthma15%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chin Loy's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women64%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Katrina C. Chin Loy wrote 1,026 Medicare Part D claims in 2024
In 2024, Dr. Chin Loy wrote 1,026 Medicare Part D claims for 217 patients. 69% of them were for generic drugs. CMS names the drug for 958 of them, across 11 drugs with 11 or more claims each, at $40,560 in total drug cost. In 2023, CMS named 679 claims across 9 drugs.
Dr. Chin Loy's Part D claims by kind of drug, 2024
- Generic713 claims69%
- Brand-name313 claims31%
Dr. Chin Loy's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 6792024: 95841%
Drugs named by CMS: 11 in 2024, 9 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Katrina C. Chin Loy ranks in the 64th percentile for cataract surgery in Medicare
Dr. Chin Loy accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 52 procedures of cataract surgery by Dr. Chin Loy, more than 64% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Chin Loy ranks in Medicare procedure volume
- Cataract surgery
- 64th percentile52 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Katrina C. Chin Loy received $7,694 in industry payments from 2016 to 2025
CMS Open Payments shows 133 general payments to Dr. Chin Loy from 24 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 84% of the total. Johnson & Johnson Surgical Vision, Inc. paid the most, $1,304.
General payments to Dr. Chin Loy by program year, 2016 to 2025
General payments to Dr. Chin Loy by kind, 2016 to 2025
- Food and beverage$6,44684%
- Travel and lodging$83711%
- Education$4115%
Companies that paid Dr. Chin Loy the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Katrina C. Chin Loy graduated from Howard University College of Medicine
Dr. Chin Loy graduated from Howard University College of Medicine in 2012.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Katrina C. Chin Loy's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Katrina C. Chin Loy
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Katrina C. Chin Loy's NPI number?
Dr. Katrina C. Chin Loy's NPI number is 1871851188. It was assigned on April 25, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Katrina C. Chin Loy?
Dr. Katrina C. Chin Loy is an ophthalmologist in Washington, District of Columbia. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Katrina C. Chin Loy practice?
Dr. Chin Loy practices at 2041 Georgia Ave NW, Washington, DC 20060. Dr. Chin Loy's primary practice is Howard University Hospital in Washington, District of Columbia, part of Howard University. Dmand AI also links Dr. Chin Loy to 1 group practice or clinic and 1 medical group.
What is Dr. Katrina C. Chin Loy's office phone number?
The practice phone on file for Dr. Chin Loy is (202) 745-6100.
What is Dr. Katrina C. Chin Loy's medical license number?
Dr. Chin Loy holds District of Columbia license MD044463.
Which hospitals is Dr. Katrina C. Chin Loy affiliated with?
Dr. Chin Loy practices at Howard University Hospital in Washington, District of Columbia.
What medical group is Dr. Katrina C. Chin Loy part of?
Dr. Chin Loy is linked to Howard University Faculty Practice Plan. Dmand AI links Dr. Chin Loy to 1 more medical group.
Does Dr. Katrina C. Chin Loy accept Medicare?
Yes. CMS data shows Dr. Chin Loy billed Medicare for 665 services in 2024, and Dr. Chin Loy accepts Medicare assignment.
How many Medicare patients does Dr. Katrina C. Chin Loy see?
CMS counts 314 Medicare patients who saw Dr. Chin Loy in 2024, with an average age of 72.
What services does Dr. Katrina C. Chin Loy bill to Medicare?
In 2024, Dr. Chin Loy's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and eye exam or test (92133).
Show 4 more questionsShow fewer questions
Where did Dr. Katrina C. Chin Loy go to medical school?
Dr. Chin Loy graduated from Howard University College of Medicine in 2012.
What drugs does Dr. Katrina C. Chin Loy prescribe most?
In 2024 Medicare Part D data, Dr. Chin Loy's most prescribed drugs by claims were Latanoprost, Prednisolone Acetate and Dorzolamide-Timolol.
Has Dr. Katrina C. Chin Loy received payments from drug or device companies?
CMS Open Payments shows $7,694 in general payments to Dr. Chin Loy from 24 companies from 2016 to 2025. The largest total came from Johnson & Johnson Surgical Vision, Inc.
How long has Dr. Katrina C. Chin Loy been practicing?
Dr. Chin Loy graduated from medical school in 2012, 14 years ago.
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