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Tsewang Tashi
( out of 369 reviews )

Tsewang Tashi, MD

Languages spoken: Tibetan, English, Mandarin Chinese, French, Hindi, Urdu

Clinical Locations

Primary Location

Huntsman Cancer Institute - Cancer Research North

Clinic 2D/E, BMT/Hematology
2000 Circle of Hope
Salt Lake City , UT 84112

VA - Building #14

Hematology/Oncology
500 S Foothill Dr
Salt Lake City , UT 84148

Dr. Tsewang Tashi is an Associate Professor in the Division of Hematology and Hematologic Malignancies at the University of Utah. He specializes in myeloid malignancies, with particular expertise in systemic mastocytosis (SM), myeloproliferative neoplasms (MPNs), myelodysplastic syndromes (MDS), and acute leukemias. He provides care for patients at the Huntsman Cancer Institute and serves veterans at the George E. Whalen VA Medical Center in Salt Lake City.

Dr. Tashi established and currently directs the Mastocytosis Program at Huntsman Cancer Institute, which has been recognized as a Mastocytosis Center of Excellence. He is actively involved in clinical and translational research and serves as principal investigator on multiple clinical trials, focusing on developing novel therapies and advancing understanding of disease biology through translational and collaborative approaches.

At the George E. Whalen VA Medical Center, Dr. Tashi is one of the lead hematologists caring for veterans with acute leukemias, MDS and MPNs referred from across the Intermountain West. He also leads several investigator-initiated and collaborative research projects aimed at improving outcomes for veterans with hematologic malignancies.

Dr. Tashi joined the University of Utah faculty in 2015 after completing his Hematology and Oncology Fellowship here. He earned his medical degree from Chang Gung University in Taiwan and completed internal medicine residency training in both Taiwan and the United States at Creighton University Medical Center in Omaha, Nebraska. During his fellowship, he conducted research on high-altitude genetic adaptation, hypoxia signaling, and the molecular genetics of myeloproliferative neoplasms in Dr. Josef Prchal's lab, laying the foundation for his continued career in myeloid malignancy research.

To schedule an appointment New Mastocytosis Patients: 801-587-4630. New MPN Patients: (801)646-4122 Returning patients: 801-585-2626

For questions regarding our clinical programs or for help identifying the right Hematology specialist for you or for your family member, please feel free to contact our Clinical Care Specialist (801) 587-4630.

Board Certification

American Board of Internal Medicine (Internal Medicine)

Patient Rating

Patients consistently praise Dr. Tashi for his deep expertise and thorough, clear explanations of diagnoses, labs, and treatment options. Commenters emphasize that he listens well, includes patients in decisions, and provides compassionate, reassuring care while advocating to secure necessary medications. Many also highlight his supportive, professional team and say his communication and follow-up make them feel confident and at ease.

Generated via Patient Reviews

4.9 /5
( out of 369 reviews )

The patient rating score is an average of all responses on our patient experience survey. The rating averages scores for all questions about care from our providers. The scale on which responses are measured is 1 to 5 with 5 being the best score.


May 30, 2026
HUNTSMAN CANCER CENTER

Cannot get better treatment and attention. Compassionate, genuine, professional and personal. The best.

May 15, 2026
HUNTSMAN CANCER CENTER

Appreciate the care he has given to me. The medicine has given me extra time living with this deadly disease

Apr 30, 2026
HUNTSMAN CANCER CENTER

Good doctor I have full confidence in him

Apr 09, 2026
HUNTSMAN CANCER CENTER

True genius for certain. I have never liked a doctor more nor have I ever had a doctor be as supportive as Doctor Tashi. His caring shows. He has assembled a team with similar values. I feel it a real privilege to call him my doctor.

Mar 07, 2026
HUNTSMAN CANCER CENTER

I feel most fortunate to have Dr Tashi's care and I appreciate the skilled staff that assist with my treatments.

Jan 30, 2026
HUNTSMAN CANCER CENTER

Dr Tashi is thorough, converses with me about all issues pertaining to my diagnosis, he listens to my concerns and includes me in discussions and decisions moving forward. I trust him with my life!

Jan 15, 2026
HUNTSMAN CANCER CENTER

An extraordinary professional. [TRANSLATED]

Jan 09, 2026
HUNTSMAN CANCER CENTER

He's awesome! He knows a lot & he's likable.

Dec 11, 2025
HUNTSMAN CANCER CENTER

True expertise from enormous experience in the field

Dec 11, 2025
HUNTSMAN CANCER CENTER

DR.TASHI OUTSTANDING MORE THAN 10 PLUS

Oct 30, 2025
HUNTSMAN CANCER CENTER

Great Doctor explains situation well and answers all questions you ask

Oct 24, 2025
HUNTSMAN CANCER CENTER

Dr Tashi always takes this time to talk to me and make sure I understand all of my options. He's very kind and understanding.

Oct 24, 2025
HUNTSMAN CANCER CENTER

Excellent physician.

Oct 16, 2025
HUNTSMAN CANCER CENTER

He's very informative, caring and thorough,

Oct 01, 2025
HUNTSMAN CANCER CENTER

Dr.Tashi explains the situation so a lai person can understand very well. He is caring, just a wonderful doctor!

Sep 08, 2025
HUNTSMAN CANCER CENTER

Outstanding physician, expert in his field.

Sep 01, 2025
HUNTSMAN CANCER CENTER

He is excellent when you get him on your appointment without a assistant doctor you don't expect

Aug 28, 2025
HUNTSMAN CANCER CENTER

If you are fortunate enough to be treated by Dr. Tashi and his group you are in for a great experience from a heartfelt group of professionals. Dr. Tashi is brilliant!

Jul 11, 2025
HUNTSMAN CANCER CENTER

Highly qualified professional in his field who treats his patients with great familiarity. [TRANSLATED]

Jun 08, 2025
HUNTSMAN CANCER CENTER

Dr Tashi not only cares for his patients, he cares about them. He considers your life wants as well as your medical needs, and helps you to meet both as you travel your health journey. He answers any questions with thoughtful care, and when you have worries regarding your health, he listens and responds with compassion. I would recommend him to any patient who needs his professional help. He will help, or find help for your specific need.

May 30, 2025
HUNTSMAN CANCER CENTER

Dr. Tashi is a wonderful doctor. He has great expertise and understanding.

May 24, 2025
HUNTSMAN CANCER CENTER

Very pleased with following up with care and medication

Apr 24, 2025
HUNTSMAN CANCER CENTER

I drive 3 1/2 hours to see Dr Tashi and it's well worth the travel.

Apr 14, 2025
HUNTSMAN CANCER CENTER

Dr. Tashi is compassionate and caring; he took the time to listen to my concerns and explain the science and medicine behind my cancer. I feel very confident that I'm in great hands under his care.

Mar 27, 2025
HUNTSMAN CANCER CENTER

Dr Tasewang, Is a great Dr. He listened and explained thing extremely well. He let me tape the conversation, I don't remember very well. I really appreciated that. Thank You Dr. Tashi

Mar 20, 2025
SOUTH JORDAN HEALTH CENTER

Dr. Tashi has done a great job of managing my lymphoma! His treatment plan has and is working perfectly and he makes me feel at ease with my condition.

Feb 28, 2025
SOUTH JORDAN HEALTH CENTER

Caring and thoughtful

Feb 28, 2025
HUNTSMAN CANCER CENTER

Highly Recommend

Feb 21, 2025
HUNTSMAN CANCER CENTER

Dr Tashi is a God send to me. He listens, educates, explains and never makes me feel like he is in a hurry. He is present in thought and is always including me in the discussion of my best treatment plans.

Feb 21, 2025
HUNTSMAN CANCER CENTER

Dr Tashi cares very much for his patients and has been a rock-solid advocate for my health-care journey. He has not just taken an interest in my medical needs, but takes the time to work with and for me to accomodate my schedule needs. I appreciate most that he treats me with compassion and reassurance, and hears my concerns, answering with honest answers even if they may be hard for me to hear. I'm so grateful to be his patient.

Feb 06, 2025
HUNTSMAN CANCER CENTER

Tashi is a wonderful doctor charismatic and respectful. Highly informative

Jan 16, 2025
HUNTSMAN CANCER CENTER

Dr. Tashi is very experienced, thorough, and informative. He truly makes you feel at ease. He's an expert in his area of expertise

Dec 01, 2024
(HUNTSMAN) SOUTH JORDAN HEALTH CENTER

The personal and professional treatment I received from Dr Tashi got me the new medication I needed for treatment of my PV cancer. He went above and beyond to secure this medication for me. Thank you Dr Tashi.

Nov 14, 2024
HUNTSMAN CANCER CENTER

He is so reassuring and informs me of everything. He explains my labs the shows me comparisons. He's the best!

Nov 08, 2024
SOUTH JORDAN HEALTH CENTER

Straightforward and caring, knowing exactly how to treat my diagnosis.

Nov 02, 2024
HUNTSMAN CANCER CENTER

I am grateful to have Dr. Tashi as my doctor for my rare condition. He is exceptionally bright and explains things so that I can understand. He is caring and has humor. All things I need to deal with this condition.

Nov 01, 2024
HUNTSMAN CANCER CENTER

Good doctor explained and answered any questions

Oct 18, 2024
HUNTSMAN CANCER CENTER

Very knowledgeable and takes the time to cover all aspects of your disease and treatment options.

Oct 03, 2024
HUNTSMAN CANCER CENTER

Dr. Fashion makes me feel heard. He listens to my concerns and I feel I have a say in my treatment.

Oct 03, 2024
HUNTSMAN CANCER CENTER

It was obvious from the first day Dr. Tashi knew my disease and what we could do about it.


Patient comments are gathered from our patient experience survey and displayed in their entirety. For the convenience of our visitors, some patient comments have been translated from their original language into English while preserving their original meaning as accurately as possible. Patients are de-identified for confidentiality and patient privacy.

Dr. Tsewang Tashi is an Associate Professor in the Division of Hematology and Hematologic Malignancies at the University of Utah. He specializes in myeloid malignancies, with particular expertise in systemic mastocytosis (SM), myeloproliferative neoplasms (MPNs), myelodysplastic syndromes (MDS), and acute leukemias. He provides care for patients at the Huntsman Cancer Institute and serves veterans at the George E. Whalen VA Medical Center in Salt Lake City.

Dr. Tashi established and currently directs the Mastocytosis Program at Huntsman Cancer Institute, which has been recognized as a Mastocytosis Center of Excellence. He is actively involved in clinical and translational research and serves as principal investigator on multiple clinical trials, focusing on developing novel therapies and advancing understanding of disease biology through translational and collaborative approaches.

At the George E. Whalen VA Medical Center, Dr. Tashi is one of the lead hematologists caring for veterans with acute leukemias, MDS and MPNs referred from across the Intermountain West. He also leads several investigator-initiated and collaborative research projects aimed at improving outcomes for veterans with hematologic malignancies.

Dr. Tashi joined the University of Utah faculty in 2015 after completing his Hematology and Oncology Fellowship here. He earned his medical degree from Chang Gung University in Taiwan and completed internal medicine residency training in both Taiwan and the United States at Creighton University Medical Center in Omaha, Nebraska. During his fellowship, he conducted research on high-altitude genetic adaptation, hypoxia signaling, and the molecular genetics of myeloproliferative neoplasms in Dr. Josef Prchal's lab, laying the foundation for his continued career in myeloid malignancy research.

To schedule an appointment New Mastocytosis Patients: 801-587-4630. New MPN Patients: (801)646-4122 Returning patients: 801-585-2626

For questions regarding our clinical programs or for help identifying the right Hematology specialist for you or for your family member, please feel free to contact our Clinical Care Specialist (801) 587-4630.

Board Certification and Academic Information

Academic Departments Internal Medicine -Associate Professor (Clinical)
Academic Divisions Hematology & Hematologic Malignancies
Board Certification
American Board of Internal Medicine (Internal Medicine)

Education history

Graduate Training Master of Science in Clinical Investigation - University of Utah M.S.C.I
Fellowship Hematology/Oncology - University of Utah Fellow
Residency Internal Medicine - Creighton University Resident
Residency Internal Medicine - Pingtung Christian Hospital Resident
Internship Internal Medicine - MacKay Memorial Hospital Intern
Professional Medical Medicine - Chang Gung University School of Medicine M.D.

Selected Publications

Journal Article

  1. Reeves BN, El Chaer F, Foltz L, Tashi T, Abu-Zeinah G, Qin A, Lucas J, Halpern AB, Maze D, Safah H, OConnell CL, Goel S, Rein L, Fang B, How J, Babu S, Li Z, Cerquozzi S, Oh ST, Hunter AM, Podoltsev N, Vachhani P, Cunningham JM, Hillis C, Bose P, Yacoub A, Mascarenhas J, Zagrijtschuk O, Castro H, Mesa RA, Masarova L (2026). Ropeginterferon alfa-2b-njft treatment in essential thrombocythemia across different driver mutations: results from a North American, single-arm, multicentre study (EXCEED-ET). Lancet Reg Health Am, 61, 101529.
  2. Akin C, Sabato V, Gotlib J, Panse J, lvarez-Twose I, Radia DH, Livideanu CB, Jurcic J, Elberink HO, Van Daele P, Cerquozzi S, Dybedal I, Reiter A, Pongdee T, Barete S, Ustun C, Schafhausen P, Vadas P, Bose P, DeAngelo DJ, Rein L, Vachhani P, Triggiani M, Bonadonna P, Hartmann K, Broesby-Olsen S, Mattsson M, George TI, Shomali W, Giannetti M, Siebenhaar F, Lin HM, Bidollari I, Lampson B, Hong J, Doyle A, Tashi T, Castells M (2026). Avapritinib achieves long-term disease control with favorable safety in patients with indolent systemic mastocytosis over 3 years. J Allergy Clin Immunol.
  3. Tashi T, Shih LY, Yo YT, Sullivan A, Chueh HY, Kuo MC, Smith A, Kim SJ, Parsegov B, Reeves BN, Song J, Prchal JT (2026). Ropeginterferon alfa-2b has minimal transplacental passage and breastmilk secretion in pregnant MPN patients. Blood Adv, 10(7), 2168-2172.
  4. Reeves BN, Song J, Leier A, Smith A, Kim SJ, Chen SL, Tashi T, Prchal JT (2025). Metformin alleviates side effects and supports the resumption of interferon therapy in polycythemia vera and essential thrombocythemia. Haematologica.
  5. Mesa R, Gill H, Zhang L, Jin J, Kirito K, Komatsu N, Qin A, Xiao Z, Tashi T, Shimoda K, Ohishi K, Chen S, Zuo X, Shirane S, Hu Y, Zhang S, Wang Y, Takenaka K, Ichii M, Xu N, Shih LY, Lim KH, Lee SE, Bae SH, Teo WZY, Maze D, Oh ST, Bose P, Sato T, Zagrijtschuk O, Lin S, Shih WJ, Mascarenhas J, Masarova L, SURPASS-ET Study Group (2025). Ropeginterferon alfa-2b in hydroxyurea-intolerant or hydroxyurea-refractory essential thrombocythaemia (SURPASS ET): a multicentre, open-label, randomised, active-controlled, phase 3 study. Lancet Haematol, 12(11), e862-e875.
  6. Bose P, Nagler E, Nawaz MS, Rampal RK, Tashi T, Thota S, Mascarenhas JO (2025). Results from a US modified Delphi consensus to define disease progression and disease modification in polycythemia Vera. Ann Hematol, 104(10), 5063-5075.
  7. Madigan LM, Boggs NA, Rets AV, Gru AA, Tashi T, Wada DA, Florell SR, Carter MC (2025). Mastocytosis in the Skin: Approach to Diagnosis, Evaluation, and Management in Adult and Pediatric Patients. Am J Clin Dermatol, 26(4), 499-510.
  8. Masarova L, Reeves BN, El Chaer F, Foltz L, Tashi T, Abu-Zeinah G, Lucas J, Halpern AB, Maze D, Qin A, Safah H, Lan F, OConnell CL, Goel S, Rein L, Fang B, How J, Babu S, Li Z, Cerquozzi S, Oh ST, Hunter AM, Podoltsev N, Vachhani P, Yacoub A, Cunningham JM, Hillis C, Otoukesh S, Zagrijtschuk O, Castro H, Bose P (2025). A multicenter study to assess efficacy, safety, and tolerability of ropeginterferon alfa-2b-njft in patients with essential thrombocythemia in the US and Canada: EXCEED-ET trial. Front Med (Lausanne), 12, 1548590.
  9. Mascarenhas J, Bose P, Hillis C, Yacoub A, El Chaer F, Maze D, Abu-Zeinah G, Qin A, Priego V, Tashi T, Cerquozzi S, Babu S, Foltz L, Goel S, Bhave RR, Lee S, Oh ST, Reeves B, Benton C, Fletcher L, Sirhan S, Safah H, Salib H, Villeneuve PJA, Zagrijtschuk O, Castro H, Masarova L (2025). ECLIPSE-PV: A Randomized, Multicenter Study to Assess Efficacy, Safety, and Tolerability of Two Dosing Regimens of Ropeginterferon Alfa-2b-Njft in Polycythemia Vera. Acta Haematol, 1-7.
  10. Yacoub A, Abu-Zeinah G, Qin A, Tashi T, Dana W, Shih WJ, Zagrijtschuk O, Tsai CY, Geller R, Komatsu N, Mesa R, Gill H (2025). PARADIGM-PV: a randomized, multicenter phase 4 study to assess the efficacy and safety of ropeginterferon alfa-2b in patients with low- or high-risk polycythemia vera. Ann Hematol.
  11. Li P, Alnoor FNU, Xie W, Williams M, Feusier J, Ding Y, Zhao X, Zheng G, Zhao C, Zieske AW, Zu Y, Raess PW, Tantravahi S, Osman A, Patel AB, Tashi T, Patel JL, Matynia AP, Menon MP, Miles RR, Jacobsen JR, George TI, Sborov DW, Szankasi P, Rindler P, Close D, Ohgami RS (2024). Rapid growth of acquired UBA1 mutations predisposes male patients to low-risk MDS. Leukemia, 39(1), 248-256.
  12. Gotlib J, Castells M, Elberink HO, Siebenhaar F, Hartmann K, Broesby-Olsen S, George TI, Panse J, Alvarez-Twose I, Radia DH, Tashi T, Bulai Livideanu C, Sabato V, Heaney M, Van Daele P, Cerquozzi S, Dybedal I, Reiter A, Pongdee T, Barete S, Ustun C, Schwartz L, Ward BR, Schafhausen P, Vadas P, Bose P, DeAngelo DJ, Rein L, Vachhani P, Triggiani M, Bonadonna P, Rafferty M, Butt NM, Oh ST, Wortmann F, Ungerstedt J, Guilarte M, Taparia M, Kuykendall AT, Arana Yi C, Ogbogu P, Gaudy-Marqueste C, Mattsson M, Shomali W, Giannetti MP, Bidollari I, Lin HM, Sulllivan E, Mar B, Scherber R, Roche M, Akin C, Maurer M (2023). Avapritinib versus Placebo in Indolent Systemic Mastocytosis. NEJM Evid, 2(6), EVIDoa2200339.
  13. Tashi T, Yu J, Pandya S, Dieyi C, Scherber R, Parasuraman S (2023). Trends in overall mortality among US veterans with primary myelofibrosis. BMC Cancer, 23(1), 48.
  14. Chuah YY, Tashi T, Kuo CJ (2022). An unexpected cause of Cullen's sign: rupture of hepatocellular carcinoma. Br J Hosp Med (Lond), 83(11), 1.
  15. Feusier JE, Arunachalam S, Tashi T, Baker MJ, VanSant-Webb C, Ferdig A, Welm BE, Rodriguez-Flores JL, Ours C, Jorde LB, Prchal JT, Mason CC (2021). Large-Scale Identification of Clonal Hematopoiesis and Mutations Recurrent in Blood Cancers. Blood Cancer Discov, 2(3), 226-237.
  16. Gangaraju R, Song J, Kim SJ, Tashi T, Reeves BN, Sundar KM, Thiagarajan P, Prchal JT (2019). Thrombotic, inflammatory, and HIF-regulated genes and thrombosis risk in polycythemia vera and essential thrombocythemia. Blood Adv, 4(6), 1115-1130.

Review

  1. Bose P, Xiao Z, Hasselbalch HC, Prchal JT, Duan M, Yacoub A, Rampal R, Kiladjian JJ, Hobbs GS, Tashi T, Shimoda K, Kirito K, Gill H, Hou HA, Lee SE, Huang J, Li B, Qin A, Yu LH, Mascarenhas JO, Mesa RA (2025). Highlights from MPN Asia 2025: Advances in Molecular Pathogenesis and Therapeutic Strategies in Myeloproliferative Neoplasms. [Review]. Curr Hematol Malig Rep, 20(1), 9.
  2. Tashi T, Deininger MW (2023). Management of Advanced Systemic Mastocytosis and Associated Myeloid Neoplasms. [Review]. Immunol Allergy Clin North Am, 43(4), 723-741.
  3. Tashi T (2022). Hematocrit, White Blood Cells, and Thrombotic Events in the Veteran Population With Polycythemia Vera. [Review]. Fed Pract, 39(Suppl 2), S43-S46.

Book Chapter

  1. Tantravahi S, Tashi T, Prchal JT (2026). Primary Myelofibrosis (Chapter 87). In Kenneth Kaushansky, Josef T. Prchal, Marcel M. Levi, Irene Roberts, Swee Lay Thein, Thomas J. Kipps (Eds.), Williams Hematology, 11th edition (11th Edition). McGraw Hill.

Case Report

  1. Chuah YY, Tashi T, Lee YY, Fu TY, Shih CA (2020). Enteropathy-associated T-cell Lymphoma (EATL) with intracranial metastasis : a rare and dismal condition. Acta Gastroenterol Belg, 83(1), 77-80.

Editorial

  1. Song J, Tashi T, Prchal JT (2019). Editorial Comment on: Inhibition of Suicidal Erythrocyte Death by Chronic Hypoxia by Tang et al. (From: Tang F, Feng L, Li R, Wang W, Liu H, Yang Q, Ge R-L. High Alt Med Biol 2019;20:112-119; DOI: 10.1089/ham.2017.0159). High Alt Med Biol, 20(2), 120-121.

Letter

  1. Mesa R, Yacoub A, Tashi T, Chai-Ho W, Yoon CH, Mascarenhas J (2025). Navigating the peginterferon Alfa-2a shortage: practical guidance on transitioning patients to ropeginterferon alfa-2b. [Letter to the editor]. Ann Hematol, 104(4), 2571-2573.

Other

  1. Madigan LM, Boggs NA, Rets AV, Gru AA, Tashi T, Wada DA, Florell SR, Carter MC (2025). Correction to: Mastocytosis in the Skin: Approach to Diagnosis, Evaluation, and Management in Adult and Pediatric Patients. Am J Clin Dermatol (26(5), p. 851). New Zealand.