William Armstrong is a Cardiology physician.
Overview
Scholarship
indexed output and impact (OpenAlex)Research metrics need a complete publication history and a confident author match. We omit them when either check fails. Why? →
Contact
The practice address and phone this provider lists in the federal NPPES (CMS) registry.
Practice address
Telephone
Practice address and telephone from the federal NPPES registry.
Sign in to view contact details →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.
Cardiovascular
75.4%Beta blocker21.5%Metoprolol Succinate46%Metoprolol Tartrate30%Carvedilol17%Atenolol7%Part D<11 patientsStatin16.6%Atorvastatin Calcium65%Rosuvastatin Calcium24%Simvastatin6%Pravastatin Sodium5%Part D<11 patients+ 11 more classes in this area
Blood & clotting
21.5%Factor Xa inhibitor15%Eliquis90%Xarelto10%Part D<11 patientsVitamin K antagonist4.7%Warfarin Sodium100%Part D≥22 patients+ 1 more class in this area
Metabolism & gastrointestinal
3.1%Potassium supplement1.9%Potassium Chloride100%Part D<11 patientsSGLT2 inhibitor1.2%Jardiance100%Part D<11 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.
No other directory profiles share this institution yet.
Deepak Bhatt, MD
Icahn School of Medicine at Mount Sinai
Harlan Krumholz, MD
Yale School of Medicine
Martin Leon, MD
Columbia University Irving Medical Center
Scott Solomon, MD
Brigham and Women's Hospital
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.”