American Family Children's Hospital
Karen E. Hansen, MD, MS close
Karen E. Hansen, MD, MS

For Patients

Need help selecting a doctor?
Call the Welcome Center at
(608) 821-4819 for personal assistance.

For Referring Physicians

How to refer a patient

Karen E. Hansen, MD, MS Print Friendly Page

Faculty, University of Wisconsin School of Medicine and Public Health

Karen E. Hansen, MD is an associate professor at the University of Wisconsin with joint appointments in the sections of rheumatology and endocrinology. Dr. Hansen completed her medical degree at the University of Wisconsin School of Medicine and Public Health (formerly UW Medical School), Madison, WI and is a member of Alpha Omega Alpha. Following a residency in Internal Medicine at the University of Wisconsin, she served as chief medical resident for the Internal Medicine Department. Fellowship training was at Duke University Medical Center in the field of rheumatology.


Dr. Hansen is board certified in internal medicine and rheumatology. She is also certified in the reading of bone densitometry. Her research and clinical interests include osteoporosis, abnormal vitamin D and calcium homeostasis and antiphospholipid antibody syndrome.


Rheumatology and Arthritis

UW Health Clinics

West Clinic
(608) 263-5010 | (800) 323-8942 | Map
West Clinic
(608) 263-7577 | (800) 323-8942 | Map

Hospital Affiliation(s)

University Hospital (primary)
Veterans Hospital - Wm. S. Middleton Memorial (secondary)

UW School of Medicine and Public Health

Department of Medicine

Department of Medicine, Rheumatology

Professional Certifications and Education

Board Certification Internal Medicine
Fellowship Duke University Medical Center, Durham, NC
Residency University of Wisconsin Hospital and Clinics, Madison, WI
Internship University of Wisconsin Hospital and Clinics, Madison, WI
Medical School University of Wisconsin School of Medicine and Public Health (formerly UW Medical School), Madison, WI, 1993


UW Health Patient Experience Physician Champion Award 2015

Medical interpreters are available to help patients communicate with hospital and clinic staff. For more information, please contact interpreter services at (608) 262-9000.


Our doctors provide a wide range of services. The following list represents some, but not all, of the procedures offered by this physician.

Programs & Conditions


Dr. Hansen’s research and clinical interests include osteoporosis, abnormal vitamin D and calcium homeostasis and antiphospholipid antibody syndrome. Ongoing research projects include a randomized placebo-controlled clinical trial of vitamin D therapy for people with rheumatoid arthritis, use of calcium isotopes to determine alterations in calcium homeostasis among postmenopausal women with vitamin D insufficiency, and analysis of lumbar spine bone mass using three different methods as a means of predicting fragility fracture among men in the MrOS study.

PubMed Articles
Arentsen L Hansen KE Yagi M Takahashi Y Shanley R McArthur A Bolan P Magome T Yee D Froelich J Hui SK . Use of dual-energy computed tomography to measure skeletal-wide marrow composition and cancellous bone mineral density. J Bone Miner Metab. 2016 Dec 9;
[PubMed ID: 27942979]
Hansen KE Johnson MG . An update on vitamin D for clinicians. Curr Opin Endocrinol Diabetes Obes. 2016 Dec;23(6):440-444
[PubMed ID: 27653000]
Medlin JL Hansen KE Fitz SR Bartels CM . A systematic review and meta-analysis of cutaneous manifestations in late- versus early-onset systemic lupus erythematosus. Semin Arthritis Rheum. 2016 Jun;45(6):691-7
[PubMed ID: 26972993]
Bartels CM Roberts TJ Hansen KE Jacobs EA Gilmore A Maxcy C Bowers BJ . Rheumatologist and Primary Care Management of Cardiovascular Disease Risk in Rheumatoid Arthritis: Patient and Provider Perspectives. Arthritis Care Res (Hoboken). 2016 Apr;68(4):415-23
[PubMed ID: 26315715]
Hansen KE Johnson MG . Proposed Guidelines for Future Vitamin D Studies--Reply. JAMA Intern Med. 2016 Feb;176(2):281-2
[PubMed ID: 26830242]
Hansen KE Johnson RE Chambers KR Johnson MG Lemon CC Vo TN Marvdashti S . Treatment of Vitamin D Insufficiency in Postmenopausal Women: A Randomized Clinical Trial. JAMA Intern Med. 2015 Oct;175(10):1612-21
[PubMed ID: 26237520]
Vreede AP Jones AN Hansen KE . Can serum isotope levels accurately measure intestinal calcium absorption compared to gold-standard methods? Nutr J. 2015 Jul 31;14:73
[PubMed ID: 26227019]
Hui SK Arentsen L Sueblinvong T Brown K Bolan P Ghebre RG Downs L Shanley R Hansen KE Minenko AG Takhashi Y Yagi M Zhang Y Geller M Reynolds M Lee CK Blaes AH Allen S Zobel BB Le C Froelich J Rosen C Yee D . A phase I feasibility study of multi-modality imaging assessing rapid expansion of marrow fat and decreased bone mineral density in cancer patients. Bone. 2015 Apr;73:90-7
[PubMed ID: 25536285]
Hansen KE Ney D . A systematic review of bone mineral density and fractures in phenylketonuria. J Inherit Metab Dis. 2014 Nov;37(6):875-80
[PubMed ID: 25005329]
Hansen KE Kleker B Safdar N Bartels CM . A systematic review and meta-analysis of glucocorticoid-induced osteoporosis in children. Semin Arthritis Rheum. 2014 Aug;44(1):47-54
[PubMed ID: 24680381]
Nabak AC Johnson RE Keuler NS Hansen KE . Can a questionnaire predict vitamin D status in postmenopausal women? Public Health Nutr. 2014 Apr;17(4):739-46
[PubMed ID: 23870503]
Hansen KE Bartels CM Gangnon RE Jones AN Gogineni J . An evaluation of high-dose vitamin D for rheumatoid arthritis. J Clin Rheumatol. 2014 Mar;20(2):112-4
[PubMed ID: 24561419]
Ney DM Blank RD Hansen KE . Advances in the nutritional and pharmacological management of phenylketonuria. Curr Opin Clin Nutr Metab Care. 2014 Jan;17(1):61-8
[PubMed ID: 24136088]
Tevaarwerk A Burkard ME Wisinski KB Shafer MM Davis LA Gogineni J Crone E Hansen KE . Aromatase inhibitors and calcium absorption in early stage breast cancer. Breast Cancer Res Treat. 2012 Jul;134(1):245-51
[PubMed ID: 22350731]
Hansen KE Wilson HA Zapalowski C Fink HA Minisola S Adler RA . Uncertainties in the prevention and treatment of glucocorticoid-induced osteoporosis. J Bone Miner Res. 2011 Sep;26(9):1989-96
[PubMed ID: 21721042]
Hansen KE . High-dose vitamin D: helpful or harmful? Curr Rheumatol Rep. 2011 Jun;13(3):257-64
[PubMed ID: 21369796]
Hansen KE Jones AN Lindstrom MJ Davis LA Ziegler TE Penniston KL Alvig AL Shafer MM . Do proton pump inhibitors decrease calcium absorption? J Bone Miner Res. 2010 Dec;25(12):2786-95
[PubMed ID: 20578215]
Penniston KL Jones AN Nakada SY Hansen KE . Vitamin D repletion does not alter urinary calcium excretion in healthy postmenopausal women. BJU Int. 2009 Nov;104(10):1512-6
[PubMed ID: 19389005]
Jones AN Hansen KE . Recognizing the musculoskeletal manifestations of vitamin D deficiency. J Musculoskelet Med. 2009 Oct;26(10):389-396
[PubMed ID: 21984863]
Hansen KE . Osteoimmunology: prevalence of hypovitaminosis D and relationship to fracture. Nat Rev Rheumatol. 2009 Aug;5(8):417-8
[PubMed ID: 19648938]