Richard Contreras

4.8k total citations · 2 hit papers
72 papers, 3.4k citations indexed

About

Richard Contreras is a scholar working on Epidemiology, Surgery and General Health Professions. According to data from OpenAlex, Richard Contreras has authored 72 papers receiving a total of 3.4k indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Epidemiology, 19 papers in Surgery and 13 papers in General Health Professions. Recurrent topics in Richard Contreras's work include Urinary Tract Infections Management (9 papers), Gastric Cancer Management and Outcomes (8 papers) and Colorectal Cancer Screening and Detection (8 papers). Richard Contreras is often cited by papers focused on Urinary Tract Infections Management (9 papers), Gastric Cancer Management and Outcomes (8 papers) and Colorectal Cancer Screening and Detection (8 papers). Richard Contreras collaborates with scholars based in United States, Italy and India. Richard Contreras's co-authors include Eric Macy, Jean M. Lawrence, Wansu Chen, David A. Sacks, Charles W. Nager, Karl M. Luber, Emily S. Lukacz, Diana B. Petitti, Virginia P. Quinn and Nirupa R. Ghai and has published in prestigious journals such as JAMA, SHILAP Revista de lepidopterología and Annals of Internal Medicine.

In The Last Decade

Richard Contreras

71 papers receiving 3.3k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Health care use and serious infection prevalence associated with penicillin “allergy” in hospitalized patients: A cohort study

2013 579 citations Eric Macy, Richard Contreras Journal of Allergy and Clinical Immunology profile →
Trends in the Prevalence of Preexisting Diabetes and Gestational Diabetes Mellitus Among a Racially/Ethnically Diverse Population of Pregnant Women, 1999–2005

2008 490 citations Jean M. Lawrence, Richard Contreras et al. profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Richard Contreras United States	27	932	670	553	516	502	72	3.4k
Fabio Cardinale Italy	27	319 0.3×	240 0.4×	552 1.0×	536 1.0×	454 0.9×	117	3.0k
Tavs Folmer Andersen Denmark	16	522 0.6×	74 0.1×	214 0.4×	561 1.1×	702 1.4×	35	3.3k
Peter W. Rose United Kingdom	25	522 0.6×	199 0.3×	1.1k 2.0×	337 0.7×	283 0.6×	50	2.4k
Fateh Bazerbachi United States	28	2.1k 2.3×	125 0.2×	570 1.0×	670 1.3×	640 1.3×	152	3.9k
Bruce Crawford United States	25	258 0.3×	108 0.2×	206 0.4×	288 0.6×	273 0.5×	79	2.8k
Alan R. Watson United Kingdom	37	756 0.8×	111 0.2×	217 0.4×	683 1.3×	485 1.0×	167	4.8k
Robert A. Yood United States	37	1.3k 1.4×	357 0.5×	744 1.3×	254 0.5×	348 0.7×	72	5.5k
Corey A. Siegel United States	44	1.7k 1.9×	130 0.2×	575 1.0×	180 0.3×	3.9k 7.7×	274	7.3k
Zuber D. Mulla United States	23	422 0.5×	51 0.1×	177 0.3×	179 0.3×	208 0.4×	105	1.6k
Wei‐Chu Chie Taiwan	39	960 1.0×	66 0.1×	1.9k 3.4×	707 1.4×	782 1.6×	153	4.9k

Countries citing papers authored by Richard Contreras

Since Specialization

Citations

This map shows the geographic impact of Richard Contreras's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Richard Contreras with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Richard Contreras more than expected).

Fields of papers citing papers by Richard Contreras

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Richard Contreras. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Richard Contreras. The network helps show where Richard Contreras may publish in the future.

Co-authorship network of co-authors of Richard Contreras

This figure shows the co-authorship network connecting the top 25 collaborators of Richard Contreras. A scholar is included among the top collaborators of Richard Contreras based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Richard Contreras. Richard Contreras is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Bruxvoort, Katia, Lina S. Sy, Richard Contreras, et al.. (2025). Development and validation of a clinical prediction tool for non-receipt of updated COVID-19 vaccines. Vaccine. 53. 127074–127074. 2 indexed citations

Adams, Annette L., Iris Reyes, Richard Contreras, et al.. (2025). Fracture risk by cortisol excess status in patients with adrenal incidentalomas: a population-based cohort study. JBMR Plus. 9(5). ziaf043–ziaf043. 1 indexed citations

Tartof, Sara Y., Mark A. Schmidt, Richard Contreras, et al.. (2024). Burden of Medically Attended Diarrhea and OutpatientClostridioides difficileInfection Among Persons in 2 Large Integrated Healthcare Settings, 2016–2021. Open Forum Infectious Diseases. 11(1). ofad680–ofad680. 1 indexed citations

Zhou, Hui, Claudia Nau, Fagen Xie, et al.. (2024). A machine-learning prediction model to identify risk of firearm injury using electronic health records data. Journal of the American Medical Informatics Association. 31(10). 2173–2180.

Ku, Jennifer H, Sara Y. Tartof, Richard Contreras, et al.. (2024). Antibiotic Resistance of Urinary Tract Infection Recurrences in a Large Integrated US Healthcare System. The Journal of Infectious Diseases. 230(6). e1344–e1354. 6 indexed citations

Lodise, Thomas P., Lie Hong Chen, Rong Wei, et al.. (2023). Clinical Risk Scores to Predict Nonsusceptibility to Trimethoprim-Sulfamethoxazole, Fluoroquinolone, Nitrofurantoin, and Third-Generation Cephalosporin Among Adult Outpatient Episodes of Complicated Urinary Tract Infection. Open Forum Infectious Diseases. 10(8). ofad319–ofad319. 3 indexed citations

Chen, Wansu, Richard Contreras, Iris Reyes, et al.. (2023). Dexamethasone Suppression Testing in a Contemporary Cohort with Adrenal Incidentalomas in Two U.S. Integrated Healthcare Systems. Biomedicines. 11(12). 3167–3167. 1 indexed citations

Corley, Douglas A., Christopher D. Jensen, Jessica Chubak, et al.. (2023). Evaluating Different Approaches for Calculating Adenoma Detection Rate: Is Screening Colonoscopy the Gold Standard?. Gastroenterology. 165(3). 784–787.e4. 6 indexed citations

Quinn, Virginia P., Rebecca Nash, Enid M. Hunkeler, et al.. (2017). Cohort profile: Study of Transition, Outcomes and Gender (STRONG) to assess health status of transgender people. BMJ Open. 7(12). e018121–e018121. 100 indexed citations

10.

DiGangi, Julia A., et al.. (2014). What Promotes Wisdom in 12-Step Recovery?. Journal of Groups in Addiction & Recovery. 9(1). 31–39. 1 indexed citations

11.

Macy, Eric & Richard Contreras. (2014). Healthcare Utilization and Serious Infection Prevalence Associated With Penicillin “Allergy” In Hospitalized Patients: A Cohort Study. Journal of Allergy and Clinical Immunology. 133(2). AB153–AB153. 2 indexed citations

12.

Contreras, Richard, et al.. (2012). No Place Like Home: Examining a Bilingual-Bicultural, Self-Run Substance Abuse Recovery Home for Latinos. PubMed. 3(3). 6 indexed citations

13.

Shen, Albert Yuh‐Jer, et al.. (2010). Racial/Ethnic Differences in the Prevalence of Atrial Fibrillation Among Older Adults—A Cross-Sectional Study. Journal of the National Medical Association. 102(10). 906–914. 72 indexed citations

14.

Zeiger, Robert S., Joel W. Hay, Richard Contreras, et al.. (2008). Asthma costs and utilization in a managed care organization. Journal of Allergy and Clinical Immunology. 121(4). 885–892.e5. 30 indexed citations

15.

Lukacz, Emily S., Jean M. Lawrence, Richard Contreras, Charles W. Nager, & Karl M. Luber. (2006). Parity, Mode of Delivery, and Pelvic Floor Disorders. Obstetrics and Gynecology. 107(6). 1253–1260. 278 indexed citations

16.

Petitti, Diana B., et al.. (2004). Most severe neutropenia in individuals with no chronic condition did not result in a specific diagnosis. Journal of Clinical Epidemiology. 57(11). 1182–1187. 3 indexed citations

17.

Contreras, Richard, et al.. (2003). Intracarpal steroid injection is safe and effective for short‐term management of carpal tunnel syndrome. Muscle & Nerve. 29(1). 82–88. 107 indexed citations

18.

Petitti, Diana B., et al.. (2001). Randomized trial of fructosamine home monitoring in patients with diabetes.. PubMed. 4(1). 18–23. 7 indexed citations

19.

Kaufman, A, et al.. (1996). Fostering the health of communities. Academic Medicine. 71(5). 432–40. 24 indexed citations

20.

Contreras, Richard, et al.. (1993). [Endoscopic resection of 49 polyps of the colon and rectum larger than 2 cm].. PubMed. 121(12). 1404–10. 1 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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