Micha Rojany is a Gastroenterology physician affiliated with University of California Davis Medical Center. OpenAlex indexes 13 publications with 561 citations (h-index 4).
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
4150 V Street
Division Of Gastroenterology
Sacramento, CA 95817
Telephone
916-734-3751Registry record last updated 3 Feb 2011.
Industry payments
39 companies reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- ABBVIE INC.Program year202539 payments
- Janssen Biotech, Inc.Program year20256 payments
- Ardelyx, Inc.Program year20255 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.
Metabolism & gastrointestinal
83.3%Proton pump inhibitor47.2%Pantoprazole Sodium69%Omeprazole23%Dexlansoprazole Dr5%Esomeprazole Magnesium3%Part D<11 patientsOsmotic Laxative7.6%Lactulose79%Enulose21%Part D<11 patients+ 10 more classes in this area
Anti-infectives
7%Nitroimidazole Antimicrobial3.1%Metronidazole100%Part D≥22 patientsTetracycline-class Drug2.5%Doxycycline Hyclate100%Part D≥18 patients+ 1 more class in this area
Cardiovascular
5%Bile Acid Sequestrant2%Colestipol Hcl100%Part D<11 patientsBeta blocker1.8%Propranolol Hcl100%Part D<11 patients+ 1 more class in this area
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.
- Capsule Endoscopy's Impact on Clinical Management and Outcomes: A Single-Center Experience With 145 Patients
The American Journal of Gastroenterology
2008 - Significant Increase in Trainee Credibility Score after Mechanical ERCP Simulator Training
The American Journal of Gastroenterology
2006 - Safety of a Rapid One-Hour Infusion of Infliximab in Crohnʼs Disease Patients
The American Journal of Gastroenterology
2005
Similar KOLs
Other experts from the same institution or the same specialty.
Helen Chew, MD
University of California Davis Medical Center
Ai‐Ming Yu
University of California Davis Medical Center
Burton L. Wise
University of California Davis Medical Center
Courtney Wusthoff, MD
University of California Davis Medical Center
Charles Rice, MD
The Rockefeller University
Edward Loftus, MD
Mayo Clinic Rochester
Naga Chalasani, MD
Indiana University School of Medicine
Bruce Sands, MD
Icahn School of Medicine at Mount Sinai
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.”