Kafi Hemphill is a Neurology physician. OpenAlex indexes 11 publications with 874 citations (h-index 5).
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
505 Parnassus Ave
San Francisco, CA 941432204
Telephone
415-353-1869Provider last certified this registry record 6 Oct 2025.
Industry payments
6 companies reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- Stryker CorporationProgram year202529 payments
- Route 92 Medical, Inc.Program year20252 payments
- DePuy Synthes Sales Inc.Program year20251 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
100%Statin100%Atorvastatin Calcium100%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.
- Clinical evaluation of pulsatile tinnitus: history and physical examination techniques to predict vascular etiology
Journal of NeuroInterventional Surgery
2023 - Transvenous coil embolization of a Cognard V transverse-sigmoid sinus dural arteriovenous fistula
Interventional Neuroradiology
2023
Similar KOLs
Other experts from the same institution or the same specialty.
Atte Meretoja
University of Helsinki
Bruce Miller, MD
University of California, San Francisco (UCSF)
Dennis Selkoe, MD
Brigham and Women's Hospital
Ettore Beghi
Mario Negri Institute for Pharmacological Research
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.”