William Asch is a Nephrology physician affiliated with Yale University. OpenAlex indexes 55 publications with 623 citations (h-index 14).
Overview
Scholarship
indexed output and impact (OpenAlex)Distinct works indexed by OpenAlex, matched via ORCID.
Total citations across indexed works.
Hirsch index, productivity × impact (OpenAlex).
Clinical & industry
trials, payments and federal fundingContact
The practice address and phone this provider lists in the federal NPPES (CMS) registry.
Practice address
20 York Street Cb 2041
Hospitalist Service
New Haven, CT 06510
Telephone
203-688-4748Registry record last updated 27 Oct 2007.
Industry payments
1 company reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- Horizon Therapeutics plcProgram year20211 payment
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.
Cardiovascular
44.9%Beta blocker15.3%Carvedilol51%Metoprolol Tartrate28%Metoprolol Succinate14%Labetalol Hcl7%Part D<11 patientsCalcium channel blocker8.8%Amlodipine Besylate100%Part D≥45 patients+ 7 more classes in this area
Metabolism & gastrointestinal
27.9%Corticosteroid16.8%Prednisone100%Part D≥64 patientsProton pump inhibitor4.5%Pantoprazole Sodium59%Omeprazole41%Part D<11 patients+ 3 more classes in this area
Anti-infectives
6%Short-acting sulfonamides5.2%Sulfamethoxazole-Trimethoprim100%Part D≥20 patientsTetracycline-class Drug0.7%Doxycycline Hyclate100%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.
Publications
Matched to this physician's OpenAlex author record; most-cited works shown first.
- Induction of immune tolerance in living related human leukocyte antigen–matched kidney transplantation: A phase 3 randomized clinical trial
American Journal of Transplantation
2025 - Sequential Measurement of Donor Derived cfDNA and Correlation with Patient Outcomes Post Kidney Transplant
American Journal of Transplantation
2025 - Potravitug for the Treatment of BK Polyomavirus Infection in Kidney Transplant Recipients: A Phase II, Randomized, Double-Blind, Placebo-Controlled Clinical Trial
Journal of the American Society of Nephrology
2025
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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.”