Mattheus Ramsis is a Cardiology physician affiliated with University of California San Diego. OpenAlex indexes 28 publications with 804 citations (h-index 9).
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
200 W Arbor Dr
San Diego, CA 921039000
Telephone
800-926-8273Provider last certified this registry record 31 Jul 2023.
Industry payments
9 companies reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- Boehringer Ingelheim Pharmaceuticals, Inc.Program year20257 payments
- Kestra Medical Technology Services, Inc.Program year20251 payment
- E.R. Squibb & Sons, L.L.C.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
85.4%Statin22.4%Rosuvastatin Calcium55%Atorvastatin Calcium38%Pravastatin Sodium8%Part D≥78 patientsBeta blocker22.4%Metoprolol Succinate71%Carvedilol21%Metoprolol Tartrate8%Part D≥100 patients+ 10 more classes in this area
Blood & clotting
8.2%Factor Xa inhibitor6.8%Eliquis85%Xarelto15%Part D<11 patientsP2Y12 inhibitor1.4%Clopidogrel100%Part D≥11 patientsMetabolism & gastrointestinal
5.5%SGLT2 inhibitor4.6%Jardiance100%Part D≥19 patientsPotassium supplement1%Potassium Chloride100%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.
NIH funding
1 NIH research award on record, funded 2026–2026 per NIH RePORTER. The latest:
- Validation of a Digital Biomarker for Global Atherosclerosis
University of California, San Diego
FY2026$177,814K23HL186449
Awards in the NIH RePORTER records where a principal investigator name matches this physician at an organization in their practice state. Latest award years shown; each row links to the project record on RePORTER.
Publications
Matched to this physician's OpenAlex author record; most-cited works shown first.
- Real-world Genetic Testing Practices in Cardiomyopathy: National Insights From 1.7 Million Patients
Journal of Cardiac Failure
2026 - Artificial intelligence electrocardiography for left ventricular systolic dysfunction demonstrates preserved performance across demographic training imbalances
European Heart Journal - Digital Health
2026 - Premature Cardiovascular Events in Young Individuals with Elevated Lp(a)
Journal of clinical lipidology
2026 - 26-A-10955-ACC USE OF CORONARY ARTERY CALCIUM SCORING IN INDIVIDUALS WITH ELEVATED LIPOPROTEIN(A): A MULTI-COHORT STUDY
Journal of the American College of Cardiology
2026 - Marked underutilization of lipoprotein(a) testing in peripheral artery disease: a national analysis of 8.3 million patients
American Journal of Preventive Cardiology
2026
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University of California San Diego
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University of California San Diego
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Igor Grant, MD
University of California San Diego
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.”