Timothy M. Ullmann

1.0k total citations
44 papers, 645 citations indexed

About

Timothy M. Ullmann is a scholar working on Endocrinology, Diabetes and Metabolism, Surgery and Genetics. According to data from OpenAlex, Timothy M. Ullmann has authored 44 papers receiving a total of 645 indexed citations (citations by other indexed papers that have themselves been cited), including 27 papers in Endocrinology, Diabetes and Metabolism, 21 papers in Surgery and 10 papers in Genetics. Recurrent topics in Timothy M. Ullmann's work include Thyroid Cancer Diagnosis and Treatment (19 papers), Thyroid and Parathyroid Surgery (9 papers) and BRCA gene mutations in cancer (7 papers). Timothy M. Ullmann is often cited by papers focused on Thyroid Cancer Diagnosis and Treatment (19 papers), Thyroid and Parathyroid Surgery (9 papers) and BRCA gene mutations in cancer (7 papers). Timothy M. Ullmann collaborates with scholars based in United States, France and Netherlands. Timothy M. Ullmann's co-authors include Rasa Zarnegar, Thomas J. Fahey, Toni Beninato, Brendan M. Finnerty, Dessislava Stefanova, Jessica Limberg, Katherine D. Gray, Eva E. Redei, Pradeep K. Shukla and Julie Ann Sosa and has published in prestigious journals such as The Journal of Clinical Endocrinology & Metabolism, Annals of Surgery and Clinical Cancer Research.

In The Last Decade

Timothy M. Ullmann

42 papers receiving 639 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Timothy M. Ullmann United States 17 367 290 117 90 71 44 645
Daniel Repplinger United States 10 579 1.6× 305 1.1× 69 0.6× 66 0.7× 85 1.2× 14 836
Oswaldo L. Bracco United States 8 541 1.5× 131 0.5× 119 1.0× 58 0.6× 148 2.1× 15 869
Stephanie Davis United States 11 309 0.8× 274 0.9× 161 1.4× 101 1.1× 128 1.8× 23 838
Ki‐Wook Chung South Korea 10 346 0.9× 556 1.9× 210 1.8× 34 0.4× 36 0.5× 12 859
Robert A. Overman United States 14 147 0.4× 159 0.5× 170 1.5× 49 0.5× 168 2.4× 24 682
Francesco Boi Italy 21 796 2.2× 430 1.5× 116 1.0× 98 1.1× 153 2.2× 41 1.1k
Nazanene H. Esfandiari United States 14 399 1.1× 359 1.2× 56 0.5× 79 0.9× 55 0.8× 39 725
Kubilay Ükinç Türkiye 11 352 1.0× 107 0.4× 31 0.3× 45 0.5× 54 0.8× 37 735
Ali Alsafi United Kingdom 12 173 0.5× 160 0.6× 53 0.5× 18 0.2× 160 2.3× 42 642
Selvihan Beysel Türkiye 13 129 0.4× 91 0.3× 71 0.6× 56 0.6× 59 0.8× 38 491

Countries citing papers authored by Timothy M. Ullmann

Since Specialization
Citations

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

Fields of papers citing papers by Timothy M. Ullmann

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Timothy M. Ullmann. 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 Timothy M. Ullmann. The network helps show where Timothy M. Ullmann may publish in the future.

Co-authorship network of co-authors of Timothy M. Ullmann

This figure shows the co-authorship network connecting the top 25 collaborators of Timothy M. Ullmann. A scholar is included among the top collaborators of Timothy M. Ullmann 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 Timothy M. Ullmann. Timothy M. Ullmann 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.
Ullmann, Timothy M. & Julie Ann Sosa. (2025). The Landmark Series: Extent of Surgery for Low-Risk Differentiated Thyroid Cancer. Annals of Surgical Oncology. 32(5). 3119–3125.
2.
Wang, Hao, et al.. (2024). Bias Perpetuates Bias: ChatGPT Learns Gender Inequities in Academic Surgery Promotions. Journal of surgical education. 81(11). 1553–1557. 3 indexed citations
3.
DiBrito, Sandra R., et al.. (2024). Impact of Holistic Application Scoring on Interview Offers. Journal of surgical education. 81(11). 1602–1611. 1 indexed citations
4.
Ullmann, Timothy M., Heng Liang, Katherine D. Gray, et al.. (2022). Exposure to Polybrominated Diphenyl Ether Flame Retardants Causes Deoxyribonucleic Acid Damage in Human Thyroid Cells In Vitro. Journal of Surgical Research. 279. 77–83. 2 indexed citations
5.
Ullmann, Timothy M., Yeon Joo Lee, Shaham Beg, et al.. (2022). RET Fusion-Positive Papillary Thyroid Cancers are Associated with a More Aggressive Phenotype. Annals of Surgical Oncology. 29(7). 4266–4273. 14 indexed citations
6.
Ullmann, Timothy M., Chiung‐Yu Huang, Wen T. Shen, et al.. (2022). Endocrine surgeons are performing more thyroid lobectomies for low-risk differentiated thyroid cancer since the 2015 ATA guidelines. Surgery. 172(5). 1392–1400. 13 indexed citations
7.
Ullmann, Timothy M., Maria Papaleontiou, & Julie Ann Sosa. (2022). Current Controversies in Low-Risk Differentiated Thyroid Cancer: Reducing Overtreatment in an Era of Overdiagnosis. The Journal of Clinical Endocrinology & Metabolism. 108(2). 271–280. 47 indexed citations
8.
Moore, Maureen D., et al.. (2022). Risk factors for venous thromboembolism (VTE) after adrenalectomy for adrenal cortical neoplasms. Journal of Surgical Oncology. 126(7). 1176–1182. 2 indexed citations
9.
Ullmann, Timothy M., et al.. (2022). Disparities in Treatment for Differentiated Thyroid Cancer. Thyroid. 33(3). 287–293. 11 indexed citations
10.
Limberg, Jessica, Gregory Putzel, Timothy M. Ullmann, et al.. (2022). Metagenomic Sequencing of the Gallbladder Microbiome: Bacterial Diversity Does Not Vary by Surgical Pathology. Journal of Gastrointestinal Surgery. 26(11). 2282–2291. 2 indexed citations
11.
Limberg, Jessica, Timothy M. Ullmann, Maureen D. Moore, et al.. (2021). Insurance type is associated with appropriate use of surgical and adjuvant care for differentiated thyroid carcinoma. Surgery. 171(1). 140–146. 5 indexed citations
12.
Limberg, Jessica, Dessislava Stefanova, Timothy M. Ullmann, et al.. (2021). Association of medicaid expansion of the Affordable Care Act with the stage at diagnosis and treatment of papillary thyroid cancer: A difference-in-differences analysis. The American Journal of Surgery. 222(3). 562–569. 5 indexed citations
13.
Ullmann, Timothy M., Maureen D. Moore, Nikolay A. Ivanov, et al.. (2021). Association of the Affordable Care Act with access to highest-volume centers for patients with thyroid cancer. Surgery. 171(1). 132–139. 6 indexed citations
14.
Gray, Katherine D., Yogindra Vedvyas, Yanping Yang, et al.. (2020). PD1 Blockade Enhances ICAM1-Directed CAR T Therapeutic Efficacy in Advanced Thyroid Cancer. Clinical Cancer Research. 26(22). 6003–6016. 35 indexed citations
15.
Limberg, Jessica, Timothy M. Ullmann, Dessislava Stefanova, et al.. (2020). Impact of multikinase inhibitor approval on survival and physician practice patterns in advanced or metastatic medullary thyroid carcinoma. Surgery. 169(1). 50–57. 4 indexed citations
16.
Limberg, Jessica, Timothy M. Ullmann, Dessislava Stefanova, et al.. (2019). Does Aggressive Variant Histology Without Invasive Features Predict Overall Survival in Papillary Thyroid Cancer?. Annals of Surgery. 274(3). e276–e281. 18 indexed citations
17.
Limberg, Jessica, Timothy M. Ullmann, Katherine D. Gray, et al.. (2019). Laparoscopic Adrenalectomy Has the Same Operative Risk as Routine Laparoscopic Cholecystectomy. Journal of Surgical Research. 241. 228–234. 9 indexed citations
18.
Ullmann, Timothy M., Katherine D. Gray, Jessica Limberg, et al.. (2019). Insurance Status Is Associated with Extent of Treatment for Patients with Papillary Thyroid Carcinoma. Thyroid. 29(12). 1784–1791. 31 indexed citations
19.
Meixner, John B., Elena Labkovsky, J. Peter Rosenfeld, et al.. (2013). P900: A Putative Novel ERP Component that Indexes Countermeasure Use in the P300-Based Concealed Information Test. Applied Psychophysiology and Biofeedback. 38(2). 121–132. 6 indexed citations
20.
Shukla, Pradeep K., Laura J. Sittig, Timothy M. Ullmann, & Eva E. Redei. (2010). Candidate Placental Biomarkers for Intrauterine Alcohol Exposure. Alcoholism Clinical and Experimental Research. 35(3). 559–565. 39 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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