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Charles J. Parker
( out of 219 reviews )

Charles J. Parker, MD, AB

Languages spoken: English

Clinical Locations

Primary Location

Sugar House Health Center

1280 E. Stringham Avenue
Salt Lake City , UT 84106

Veterans Administration Medical Center

500 S Foothill Blvd
Salt Lake City , UT 84148

Charles J. Parker, M. D., is a Professor of Medicine in the Division of Hematology and Hematologic Malignancies, Department of Internal Medicine, at the University of Utah and the Huntsman Cancer Institute, Salt Lake City, UT. As a Hematologist, his clinical interests include paroxysmal nocturnal hemoglobinuria (PNH), hemochromatosis and porphyria.


Dr. Parker received his MD from The University of North Carolina, Chapel Hill. He received training in medicine and hematology from the North Carolina Memorial Hospital, Chapel Hill and Duke University, respectively. In the past, Dr. Parker served as President of the International Paroxysmal Nocturnal Hemoglobinuria Interest Group and Editor-in-Chief of The Hematologist.


For questions regarding Dr. Parker's practice, 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/New Patient Coordinator at www.huntsmancancer.org or (801) 587-4630.

Board Certification

American Board of Internal Medicine (Internal Medicine)
American Board of Internal Medicine (Internal Medicine)
American Board of Internal Medicine (Sub: Hematology)
American Board of Internal Medicine (Sub: Hematology)
Educational Commission for Foreign Medical Graduates
Licentiate of the Medical Council of Canada
Royal College of Physicians and Surgeons of Canada
Royal College of Surgeons of Canada

Patient Rating

Patients repeatedly report that Dr. Parker is knowledgeable, communicates clearly, and takes time to listen and answer questions, leaving them feeling understood and confident in their care. Reviewers describe him as kind, calm, and attentive, with explanations and follow-up instructions that are straightforward and easy to understand. Many comments also praise the courteous, caring office staff and the overall quality of visits.

Generated via Patient Reviews

4.8 /5
( out of 219 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 16, 2026
SUGAR HOUSE HEALTH CENTER

Dr. Parker is very kind. He is very knowledgeable and I feel confident in his ability to treat my health concerns. I'm thankful to have him as my doctor

May 15, 2026
SUGAR HOUSE HEALTH CENTER

Professionally cordial.

May 02, 2026
SUGAR HOUSE HEALTH CENTER

Great Doctor & Staff- very attentive & Caring, Thank you.

Nov 24, 2025
SUGAR HOUSE HEALTH CENTER

Good experience [TRANSLATED]

Nov 21, 2025
SUGAR HOUSE HEALTH CENTER

Dr. Parker is a highly knowledgeable practitioner who is low key and informative. His explanations and instructions are straightforward and understandable.

Nov 13, 2025
SUGAR HOUSE HEALTH CENTER

I find Dr. Parker VERY good to work with. His demeanor is very soothing, open and helpful.

Nov 05, 2025
SUGAR HOUSE HEALTH CENTER

Dr. Parker was most attentive and knowledgeable about my condition. He gave me a generous amount of his time to explain his plan of care for me.

Oct 04, 2025
SUGAR HOUSE HEALTH CENTER

He is very professional [TRANSLATED]

Oct 02, 2025
SUGAR HOUSE HEALTH CENTER

Dr Parker is an excellent doctor. Very knowledgeable and caring.

Aug 30, 2025
SUGAR HOUSE HEALTH CENTER

Caring & knowledgeable.

Aug 19, 2025
SUGAR HOUSE HEALTH CENTER

I would not recommend this dr.

Jun 27, 2025
SUGAR HOUSE HEALTH CENTER

Clear, concise. Follow up

Jun 27, 2025
SUGAR HOUSE HEALTH CENTER

Dr Charles Parker is amazing !! He is not only very knowledgable but also very kind and personal. Very lucky to have him as my doctor.

Jun 19, 2025
SUGAR HOUSE HEALTH CENTER

Dr. Parker is kind and attentive. I've been a patient of his practice for almost 3 years. I'm grateful for their concern for me and my health.

Jun 18, 2025
SUGAR HOUSE HEALTH CENTER

I do not how to answer this question, just had a very brief meeting. He explain about the other blood test.

Jun 14, 2025
SUGAR HOUSE HEALTH CENTER

Very courteous Dr, who explained everything about my blood test certainly assured me that I was doing well and he would like to see me in a year his staff we're all very courteous

Apr 11, 2025
SUGAR HOUSE HEALTH CENTER

Tough to get an appointment, but worth the wait.

Mar 20, 2025
SUGAR HOUSE HEALTH CENTER

Good professional [TRANSLATED]

Feb 27, 2025
SUGAR HOUSE HEALTH CENTER

Outstanding

Nov 25, 2024
SUGAR HOUSE HEALTH CENTER

Dr. Parker is a down to earth physician. He explains things in easily understood terms. He listens to my concerns and answers clearly. He is calm and makes me at ease.

Nov 15, 2024
SUGAR HOUSE HEALTH CENTER

It is easy to tell that Dr. Parker cares about me and all his patients.

Nov 01, 2024
SUGAR HOUSE HEALTH CENTER

He is such a kind doctor and very thorough with all my health needs

Oct 17, 2024
SUGAR HOUSE HEALTH CENTER

Dr Parker was easy to understand. He explained his thoughts in a manner I could understand.


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.

Board Certification and Academic Information

Academic Departments Internal Medicine -Professor
Academic Divisions Hematology & Hematologic Malignancies
Board Certification
American Board of Internal Medicine (Internal Medicine)
American Board of Internal Medicine (Internal Medicine)
American Board of Internal Medicine (Sub: Hematology)
American Board of Internal Medicine (Sub: Hematology)
Educational Commission for Foreign Medical Graduates
Licentiate of the Medical Council of Canada
Royal College of Physicians and Surgeons of Canada
Royal College of Surgeons of Canada

Education history

Fellowship Hematology/Oncology - Duke University Medical Center Fellow
Residency Internal Medicine - North Carolina Memorial Hospital Resident
Internship North Carolina Memorial Hospital Intern
Professional Medical Medicine - University of North Carolina M.D.
Undergraduate English - University of North Carolina A.B.

Selected Publications

Journal Article

  1. Everhardt T, Julian K, Benefield R, Wilson A, Wilson N, Parker CJ, Parks A, Gilreath JA (2025). Platelet response following dexamethasone in obese vs nonobese patients with primary, acute immune-mediated thrombocytopenia. Res Pract Thromb Haemost, 9(3), 102844.
  2. Balwani M, Bonkovsky HL, Levy C, Anderson KE, Bissell DM, Parker C, Takahashi F, Desnick RJ, Belongie K, Endeavor Investigators (2023). Dersimelagon in Erythropoietic Protoporphyrias. N Engl J Med, 388(15), 1376-1385.
  3. Tantravahi SK, Huber BD, Vagher J, Maese L, Pomicter AD, Al-Sweel N, Asch JD, Toydemir RM, Hong B, Parker C (2022). Genome-wide uniparental disomy as a mechanism of immune escape in acquired aplastic anaemia. Br J Haematol, 198(6), e78-e81.
  4. Ventura P, Bonkovsky HL, Gouya L, Aguilera-Peir P, Montgomery Bissell D, Stein PE, Balwani M, Anderson DKE, Parker C, Kuter DJ, Monroy S, Oh J, Ritchie B, Ko JJ, Hua Z, Sweetser MT, Sardh E, ENVISION Investigators (2021). Efficacy and safety of givosiran for acute hepatic porphyria: 24-month interim analysis of the randomized phase 3 ENVISION study. Liver Int, 42(1), 161-172.
  5. Farrell CP, Nicolas G, Desnick RJ, Parker CJ, Lamoril J, Gouya L, Karim Z, Tchernitchko D, Chen B, Puy H, Phillips JD (2021). ABCB6 Polymorphisms are not Overly Represented in Patients with Porphyria. Blood Adv.
  6. Abou-Ismail MY, Prchal JT, Deininger MW, Parker CJ, Lim MY (2021). Anticoagulation management post-transjugular intrahepatic portosystemic shunt in portal hypertension associated with myeloproliferative neoplasms. Blood Coagul Fibrinolysis, 32(8), 578-583.
  7. Thiagarajan P, Parker CJ, Prchal JT (2021). How Do Red Blood Cells Die? Front Physiol, 12, 655393.
  8. Parker CJ, Desnick RJ, Bissel MD, Bloomer JR, Singal A, Gouya L, Puy H, Anderson KE, Balwani M, Phillips JD (2019). Results of a pilot study of isoniazid in patients with erythropoietic protoporphyria. Mol Genet Metab, 128(3), 309-313.
  9. Langendonk JG, Balwani M, Anderson KE, Bonkovsky HL, Anstey AV, Bissell DM, Bloomer J, Edwards C, Neumann NJ, Parker C, Phillips JD, Lim HW, Hamzavi I, Deybach JC, Kauppinen R, Rhodes LE, Frank J, Murphy GM, Karstens FPJ, Sijbrands EJG, de Rooij FWM, Lebwohl M, Naik H, Goding CR, Wilson JHP, Desnick RJ (2015). Afamelanotide for Erythropoietic Protoporphyria. N Engl J Med, 373(1), 48-59.
  10. Singal AK, Parker C, Bowden C, Thapar M, Liu L, McGuire BM (2014). Liver transplantation in the management of porphyria. Hepatology, 60(3), 1082-9.
  11. Swierczek SI, Piterkova L, Jelinek J, Agarwal N, Hammoud S, Wilson A, Hickman K, Parker CJ, Cairns BR, Prchal JT (2012). Methylation of AR locus does not always reflect X chromosome inactivation state. Blood, 119(13), e100-9.
  12. Ahmed KB, Warner SL, Chen A, Gourley ES, Liu X, Vankayalapati H, Nussenzveig R, Prchal JT, Bearss DJ, Parker CJ (2010). In vitro and in vivo characterization of SGI-1252, a small molecule inhibitor of JAK2. Exp Hematol, 39(1), 14-25.
  13. Parker CJ, Brodsky RA, Levine JE (2009). Treatment versus transplant for challenging hematologic disorders. Biol Blood Marrow Transplant, 15(1 Suppl), 72-8.
  14. Parker CJ, Janatova J, Weis JH (2000). Preface. Immunopharmacology, 49(1-2), 99-100.
  15. Bohnsack JF, Widjaja K, Ghazizadeh S, Rubens CE, Hillyard DR, Parker CJ, Albertine KH, Hill HR (1997). A role for C5 and C5a-ase in the acute neutrophil response to group B streptococcal infections. J Infect Dis, 175(4), 847-55.
  16. Liu L, Murray DK, Dameron CT, Parker CJ, Rodgers GM (1997). Biochemical characterization of procoagulant albumin. Thromb Res, 85(5), 399-411.
  17. Gubler DB, Ahlstrom CR, Liu L, Zhou JF, Parker CJ, Rodgers GM (1995). Procoagulant albumin increases vascular endothelial cell prostacyclin secretion. Thromb Haemost, 74(6), 1573-7.
  18. Grosset A, Liu L, Parker CJ, Rodgers GM (1994). Bioassay of procoagulant albumin in human plasma. Thromb Res, 75(5), 551-8.
  19. Tomita A, Radike EL, Parker CJ (1993). Isolation of erythrocyte membrane inhibitor of reactive lysis type II. Identification as glycophorin A. J Immunol, 151(6), 3308-23.
  20. Gubler DB, Wilson BD, Parker CJ, Rodgers GM (1993). Regulation of endothelial cell protein C activation and fibrinolysis by procoagulant albumin. Thromb Res, 70(6), 459-69.
  21. Ezzell JL, Parker CJ (1992). Cell-surface regulation of the human alternative pathway of complement. Sheep but not rabbit erythrocytes express factor I-dependent cofactor activity. Scand J Immunol, 36(1), 79-87.
  22. Bohnsack JF, Zhou XN, Gustin JN, Rubens CE, Parker CJ, Hill HR (1992). Bacterial evasion of the antibody response: human IgG antibodies neutralize soluble but not bacteria-associated group B streptococcal C5a-ase. J Infect Dis, 165(2), 315-21.
  23. Holguin MH, Martin CB, Bernshaw NJ, Parker CJ (1992). Analysis of the effects of activation of the alternative pathway of complement on erythrocytes with an isolated deficiency of decay accelerating factor. J Immunol, 148(2), 498-502.
  24. Bohnsack JF, Zhou XN, Williams PA, Cleary PP, Parker CJ, Hill HR (1991). Purification of the proteinase from group B streptococci that inactivates human C5a. Biochim Biophys Acta, 1079(2), 222-8.
  25. Janatova J, Cheung AK, Parker CJ (1991). Biomedical polymers differ in their capacity to activate complement. Complement Inflamm, 8(2), 61-9.
  26. Lassiter HA, Speranza MJ, Hall RT, Meade V, Christensen RD, Parker CJ (1990). Complement C3 deposition onto bacteria by neonatal serum is not enhanced after the infusion of intravenous immunoglobulin. J Perinatol, 10(1), 27-31.
  27. Parker CJ, Bernshaw NJ, Wilcox LA (1990). Analysis of the binding of human C3b to glycoproteins on rabbit and sheep erythrocytes. Complement Inflamm, 7(1), 1-17.
  28. Cheung AK, Parker CJ, Wilcox L (1989). Effects of two types of cobra venom factor on porcine complement activation and pulmonary artery pressure. Clin Exp Immunol, 78(2), 299-306.
  29. Lassiter HA, Christensen RD, Parker CJ (1989). Immunologic regulation of E. coli K1 by serum from neonatal rats is enhanced following intraperitoneal administration of human IgG. J Infect Dis, 159(3), 518-25.
  30. Parker CJ, Stone OL, Bernshaw NJ (1989). Characterization of the enhanced susceptibility of paroxysmal nocturnal hemoglobinuria erythrocytes to complement-mediated hemolysis initiated by cobra venom factor. J Immunol, 142(1), 208-16.
  31. Hill HR, Bohnsack JF, Morris EZ, Augustine NH, Parker CJ, Cleary PP, Wu JT (1988). Group B streptococci inhibit the chemotactic activity of the fifth component of complement. J Immunol, 141(10), 3551-6.
  32. Whatley RE, Lewis MS, Zimmerman GA, McIntyre TM, Parker CJ, Stevens DL, Prescott SM (1988). The regulation of synthesis of platelet-activating factor by endothelial cells. Chest, 93(3 Suppl), 110S-111S.

Review

  1. Adam MP, Feldman J, Mirzaa GM, Pagon RA, Wallace SE, Bean LJH, Gripp KW, Amemiya A, Barton JC, Parker CJ (1993). HFE-Related Hemochromatosis. [Review]. Gene Reviews.
  2. Parker CJ (2012). Paroxysmal nocturnal hemoglobinuria. [Review]. Curr Opin Hematol, 19(3), 141-8.
  3. Parker CJ (2011). Management of paroxysmal nocturnal hemoglobinuria in the era of complement inhibitory therapy. [Review]. Hematology Am Soc Hematol Educ Program, 2011, 21-9.
  4. Parker, CJ (2011). Complement and hematology. [Review]. 8(1), 5.

Book Chapter

  1. Parker CJ (2017). Complement and PNH. In Kanakura Y, Kinoshita T, Nishimura J (Eds.), Paroxysmal Nocturnal Hemoglobinuria: From Bench to Bedside (pp. 67-98). Tokyo: Springer Japan KK.
  2. Parker CJ (2015). Paroxysmal Nocturnal Hemoglobinuria. In Kaushansky K, Lichtman M, Kipps T, Prchal J, Seligsohn U (Eds.), Williams Hematology (9th Edition). Boston: McGraw-Hill.
  3. Parker CJ (2015). Complement for the Clinician. In Brodsky R (Ed.), Complement-mediated Hemolytic Anemias, An Issue of Hematology/Oncology Clinics of North America. Philadelphia: Elsevier.
  4. Parker CJ, Ware RE (2014). Paroxysmal Nocturnal Hemoglobinuria. In Orkin S, Nathan G, Ginsburg D, Look AT, Fisher D, Lux S (Eds.), Nathan and Oski's Hematology and Oncology of Infancy and Childhood (8th Edition). Philadelphia: Elsevier.
  5. Parker, CJ and Ware, RE (2013). Paroxysmal nocturnal hemoglobinuria. In Greer J, Arber D, Glader B, List A, Means R, Paraskevas F, Rodgers G, Foerster J (Eds.), Wintrobe's Clinical Hematology (13th Ed, pp. 785-808). Philadelphia: Lippincott Williams & Wilkins.

Letter

  1. Tombul Z, Bahaj W, Ozturk M, Patel B, Toprak A, Ibrahim I, Chen W, Fuda F, Ogbue OD, Gurnari C, Parker C, Young NS, Maciejewski JP, Duran M, Bat T (2024). Ahemolytic PNH (white cell PNH): Clinical features and implications of a distinct phenotype of paroxysmal nocturnal haemoglobinuria. [Letter to the editor]. Br J Haematol, 204(5), 2121-2124.
  2. Trunk AD, Shewan SK, Lee CJ, Parker CJ, Couriel DR (2022). Chronic graft-versus-host disease exacerbation after SARS-CoV-2 vaccination. [Letter to the editor]. Bone Marrow Transplant, 57(3), 502-503.