David Williams is an Ophthalmology physician. ClinicalTrials.gov lists 19 registered studies matched to this name.
Overview
Scholarship
indexed output and impact (OpenAlex)Research metrics aren't shown for this record. Either we found no confident publication match for this name, or more than one physician shares the matched author record. We'd rather show nothing than someone else's numbers. Why? →
Clinical & industry
trials, payments and federal fundingContact
The practice address and phone this provider lists in the federal NPPES (CMS) registry.
Practice address
1676 S Market St
Elizabethtown, PA 170222853
Telephone
717-361-9727Provider last certified this registry record 17 Dec 2024.
Clinical trials
- Exercise Incentives for YMCA Based Exercise
Sponsor: Brown University
- A Trial Comparing Unrelated Donor BMT With IST for Pediatric and Young Adult Patients With Severe Aplastic Anemia (TransIT, BMT CTN 2202)
Sponsor: Boston Children's Hospital
- Comparing Self-paced Versus Moderate Intensity Physical Activity Recommendation for Midlife Adults
Sponsor: Brown University
Registered studies on ClinicalTrials.gov where the overall official or a site investigator name-matches this physician, confirmed against known institution/geography. Latest few shown; the full list is part of the full profile.
Industry payments
9 companies reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- Bausch & Lomb Americas Inc.Program year20252 payments
- Ocular Therapeutix, Inc.Program year20251 payment
- ABBVIE INC.Program year20242 payments
Payment records matched to this physician's NPI in CMS Open Payments, program years 2021 onward.
Medicare prescribing footprint (2024)
The drugs this prescriber writes for Medicare patients, grouped by drug class and therapeutic area. Every percentage is a share of their total prescribing, so you can see what they prescribe most. These are proportions, not patient counts or dollar amounts. No condition is inferred: the claims record what was prescribed, never why.
Sensory organs
84%Prostaglandin Analog48.4%Latanoprost86%Lumigan14%Part D≥82 patientsCarbonic Anhydrase Inhibitor18.4%Dorzolamide-Timolol100%Part D≥38 patients+ 3 more classes in this area
Cardiovascular
12.4%Beta blocker12.4%Timolol Maleate100%Part D≥28 patientsAnti-infectives
3.6%Macrolide3.6%Erythromycin100%Part D≥23 patients
Drug classes come from the WHO ATC and U.S. National Library of Medicine (RxClass) classifications; prescribing counts come from the CMS Medicare Part D Prescribers file. Each drug is counted once, under its primary class. Medicare fee-for-service only, so no Medicare Advantage, commercial, or pediatric prescribing is included. CMS publishes this data about 17 months after the fact.
Similar KOLs
Other experts from the same institution or the same specialty.
Ali Bijani
Babol University of Medical Sciences
Hamid Asayesh
Ayatollah Boroujerdi University
John J. Huang
Isfahan University of Medical Sciences
Fotis Topouzis
National University of Singapore
A basic profile from our physician directory: identity and practice contact from the federal NPPES registry, research from OpenAlex, trials from ClinicalTrials.gov, payments from CMS Open Payments — shown itemized where we have matched records, as a count where we only have a total. This person hasn't been through our full identity-adjudication pipeline yet, so funding, congress activity and public presence aren't shown. Absence of a section means “not yet looked,” never “none found.”