Ramanna Merla is a Cardiology physician affiliated with Pomona Valley Hospital Medical Center. OpenAlex indexes 19 publications with 343 citations (h-index 11).
Overview
Scholarship
indexed output and impact (OpenAlex)Distinct works indexed by OpenAlex.
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
1866 N Orange Grove Ave Ste 201
Pomona, CA 917673042
Telephone
909-623-5866Provider last certified this registry record 17 Sept 2025.
Industry payments
33 companies reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- Boston Scientific CorporationProgram year202528 payments
- Medtronic, Inc.Program year202517 payments
- Merck Sharp & Dohme LLCProgram year202510 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.
Cardiovascular
65%Beta blocker18.6%Metoprolol Tartrate41%Carvedilol29%Metoprolol Succinate24%Atenolol3%Sotalol3%Part D<11 patientsAngiotensin receptor-neprilysin inhibitor (ARNI)7.8%Entresto100%Part D≥75 patients+ 15 more classes in this area
Blood & clotting
20.2%Factor Xa inhibitor17.4%Eliquis74%Xarelto26%Part D≥115 patientsP2Y12 inhibitor2.4%Clopidogrel100%Part D≥35 patients+ 1 more class in this area
Metabolism & gastrointestinal
13.2%SGLT2 inhibitor12%Farxiga51%Jardiance44%Dapagliflozin5%Part D≥49 patientsPotassium supplement1.2%Potassium Chloride100%Part D≥14 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.
- New-Onset Complete Heart Block Later Complicated by Decompensated Heart Failure Following COVID-19 Infection
Medical Journal of Southern California Clinicians
2021 - Mapping and Ablation of Ventricular Tachycardia From the Left Upper Fascicle
Circulation Arrhythmia and Electrophysiology
2013 - Potentials in the Posterior Fascicle: Active Role or Passive Bystander?
Journal of Cardiovascular Electrophysiology
2013 - Hypothyroidism and renal function in patients with systolic heart failure.
PubMed
2010 - Noncompaction of Ventricular Myocardium Associated With Hypertrophic Cardiomyopathy and Polycystic Kidney Disease
The American Journal of the Medical Sciences
2010
Similar KOLs
Other experts from the same institution or the same specialty.
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.”