Vikram Tiwari

783 total citations
35 papers, 544 citations indexed

About

Vikram Tiwari is a scholar working on Emergency Medical Services, Surgery and Cardiology and Cardiovascular Medicine. According to data from OpenAlex, Vikram Tiwari has authored 35 papers receiving a total of 544 indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Emergency Medical Services, 17 papers in Surgery and 14 papers in Cardiology and Cardiovascular Medicine. Recurrent topics in Vikram Tiwari's work include Healthcare Operations and Scheduling Optimization (18 papers), Cardiac, Anesthesia and Surgical Outcomes (14 papers) and Surgical Simulation and Training (6 papers). Vikram Tiwari is often cited by papers focused on Healthcare Operations and Scheduling Optimization (18 papers), Cardiac, Anesthesia and Surgical Outcomes (14 papers) and Surgical Simulation and Training (6 papers). Vikram Tiwari collaborates with scholars based in United States, Russia and South Korea. Vikram Tiwari's co-authors include Vincent A. Mabert, J. Herbert Patterson, Warren S. Sandberg, Richard H. Epstein, Franklin Dexter, Chelliah Sriskandarajah, Sunil Kripalani, Gretchen C. Edwards, Kelvin A. Moses and Kamran Idrees and has published in prestigious journals such as Annals of Surgery, European Journal of Operational Research and Anesthesiology.

In The Last Decade

Vikram Tiwari

33 papers receiving 531 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Vikram Tiwari United States 13 202 197 156 104 97 35 544
Paolo Landa Italy 13 268 1.3× 102 0.5× 45 0.3× 135 1.3× 98 1.0× 34 566
Bjorn P. Berg United States 11 483 2.4× 148 0.8× 64 0.4× 232 2.2× 88 0.9× 29 717
Jonathan E. Helm United States 16 285 1.4× 267 1.4× 78 0.5× 179 1.7× 64 0.7× 43 804
Jeroen M. van Oostrum Netherlands 9 481 2.4× 212 1.1× 106 0.7× 226 2.2× 135 1.4× 11 620
Sylvia Elkhuizen Netherlands 15 289 1.4× 107 0.5× 89 0.6× 114 1.1× 63 0.6× 25 483
Pablo Santibáñez Canada 8 287 1.4× 75 0.4× 23 0.1× 121 1.2× 88 0.9× 9 436
Anantha Kollengode United States 6 223 1.1× 327 1.7× 224 1.4× 53 0.5× 34 0.4× 8 726
Pieter S. Stepaniak Netherlands 12 257 1.3× 358 1.8× 301 1.9× 101 1.0× 21 0.2× 24 617
Bethany Daily United States 10 298 1.5× 244 1.2× 203 1.3× 141 1.4× 21 0.2× 20 507
Iain M Smith United Kingdom 11 49 0.2× 233 1.2× 78 0.5× 259 2.5× 31 0.3× 29 764

Countries citing papers authored by Vikram Tiwari

Since Specialization
Citations

This map shows the geographic impact of Vikram Tiwari'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 Vikram Tiwari with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Vikram Tiwari more than expected).

Fields of papers citing papers by Vikram Tiwari

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Vikram Tiwari. 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 Vikram Tiwari. The network helps show where Vikram Tiwari may publish in the future.

Co-authorship network of co-authors of Vikram Tiwari

This figure shows the co-authorship network connecting the top 25 collaborators of Vikram Tiwari. A scholar is included among the top collaborators of Vikram Tiwari 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 Vikram Tiwari. Vikram Tiwari is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Narayanan, Sriram, et al.. (2025). An Analysis of Laparoscopic and Robotic Minimally Invasive Surgeries: Surgeon Experience, Learning, and Task Performance. Journal of Operations Management. 72(2). 297–315.
2.
Robertson, Amy, et al.. (2023). Automated Emails to Improve Evening Staffing for Anesthesiologists. Journal of Medical Systems. 47(1). 22–22.
3.
Tiwari, Vikram, et al.. (2022). Telemedicine Use for Oncology Clinic Visits at a Large Medical Center During the Onset of COVID-19. Telemedicine Journal and e-Health. 29(8). 1186–1194. 3 indexed citations
4.
Shah, Ashish S., et al.. (2021). Predicting Length of Stay of Coronary Artery Bypass Grafting Patients Using Machine Learning. Journal of Surgical Research. 264. 68–75. 12 indexed citations
5.
Tiwari, Vikram, et al.. (2020). Transition from Private to Academic Anesthesia Provision Changes Process and Patient Centered Outcomes in an Ambulatory Surgery Center. Journal of Medical Systems. 44(12). 204–204. 1 indexed citations
6.
Tiwari, Vikram, et al.. (2020). Predicting Daily Surgical Volumes Using Probabilistic Estimates of Providers’ Future Availability. Decision Sciences. 53(1). 124–149. 4 indexed citations
7.
Hawkins, Alexander T., Timothy M. Geiger, Adam King, et al.. (2018). An enhanced recovery program in colorectal surgery is associated with decreased organ level rates of complications: a difference-in-differences analysis. Surgical Endoscopy. 33(7). 2222–2230. 8 indexed citations
8.
Tiwari, Vikram, Jesse M. Ehrenfeld, & Warren S. Sandberg. (2018). Does a first-case on-time-start initiative achieve its goal by starting the entire process earlier or by tightening the distribution of start times?. British Journal of Anaesthesia. 121(5). 1148–1155. 6 indexed citations
9.
Kougias, Panos, Vikram Tiwari, Sherene Sharath, et al.. (2018). A Statistical Model-driven Surgical Case Scheduling System Improves Multiple Measures of Operative Suite Efficiency. Annals of Surgery. 270(6). 1000–1004. 4 indexed citations
10.
11.
Yiadom, Maame Yaa A. B., Christopher W. Baugh, Tyler W. Barrett, et al.. (2017). Measuring Emergency Department Acuity. Academic Emergency Medicine. 25(1). 65–75. 17 indexed citations
12.
Tiwari, Vikram, Carrie Queenan, & Paul St. Jacques. (2017). Impact of waiting and provider behavior on surgical outpatients’ perception of care. Perioperative Care and Operating Room Management. 7. 7–11. 10 indexed citations
13.
Kougias, Panos, Vikram Tiwari, & David Berger. (2015). Use of simulation to assess a statistically driven surgical scheduling system. Journal of Surgical Research. 201(2). 306–312. 10 indexed citations
14.
Tiwari, Vikram, William R. Furman, & Warren S. Sandberg. (2014). Predicting Case Volume from the Accumulating Elective Operating Room Schedule Facilitates Staffing Improvements. Anesthesiology. 121(1). 171–183. 27 indexed citations
15.
Tiwari, Vikram, Franklin Dexter, Brian Rothman, Jesse M. Ehrenfeld, & Richard H. Epstein. (2013). Explanation for the Near-Constant Mean Time Remaining in Surgical Cases Exceeding Their Estimated Duration, Necessary for Appropriate Display on Electronic White Boards. Anesthesia & Analgesia. 117(2). 487–493. 29 indexed citations
16.
Dexter, Franklin, Johannes Ledolter, Vikram Tiwari, & Richard H. Epstein. (2013). Value of a Scheduled Duration Quantified in Terms of Equivalent Numbers of Historical Cases. Anesthesia & Analgesia. 117(1). 205–210. 36 indexed citations
17.
Kougias, Panagiotis, Vikram Tiwari, Neal R. Barshes, et al.. (2012). Modeling anesthetic times. Predictors and implications for short-term outcomes. Journal of Surgical Research. 180(1). 1–7. 13 indexed citations
18.
Kougias, Panagiotis, Vikram Tiwari, Sonia T. Orcutt, et al.. (2012). Derivation and out-of-sample validation of a modeling system to predict length of surgery. The American Journal of Surgery. 204(5). 563–568. 15 indexed citations
19.
Tiwari, Vikram & H. Sebastian Heese. (2009). Specialization and competition in healthcare delivery networks. Health Care Management Science. 12(3). 306–324. 16 indexed citations
20.
Tiwari, Vikram & Srinagesh Gavirneni. (2007). ASP, The Art and Science of Practice: Recoupling Inventory Control Research and Practice: Guidelines for Achieving Synergy. INFORMS Journal on Applied Analytics. 37(2). 176–186. 16 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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