Name: Christopher M. Callahan, M.D.
Phone Number: (317) 423-5600
E-Mail
Secretary Name: Sharon Hopwood
Secretary Phone Number: (317) 423-5600
Fax: (317) 423-5695
 

RESEARCH INTERESTS

Dr. Callahan's major research interest focuses on late life depression and primary care geriatrics. His studies seek ways to enable primary care physicians to deliver excellent care to older adults.

POSITION/TITLE

Cornelius and Yvonne Pettinga Professor in Aging Research
Professor of Medicine

EDUCATION/TRAINING
Institution and Location Degree  Year Field of Study
University of Missouri Columbia, Columbia, MO B.A. 1981 Biology
St. Louis University School of Med, St. Louis, MO M.D. 1985 Medicine
Baylor College of Medicine, Houston, TX Resident 1985-1988  Internal Medicine
Indiana University School of Medicine, Indianapolis, IN  Fellow 1988-1991
Health Services Research

ACADEMIC AND PROFESSIONAL POSITIONS

1988 - Present Staff Physician, Department of Medicine, Wishard Memorial Hospital, Indianapolis, IN
1988 - Present Staff Physician, Department of Medicine, Richard L. Roudebush VAMC, Indianapolis, IN
1991 - Present Staff Physician, Department of Medicine, University Hospital, Indianapolis, IN
1991 - Present Regenstrief Scientist, Regenstrief Institute for Health Care, Indianapolis, IN
1991 - 1996 Assistant Professor, Dept of Medicine, Indiana University School of Medicine, Indianapolis, IN
1996 - 2004 Associate Professor, Department of Medicine, Indiana University School of Medicine, Indianapolis, IN
1997 - Present Director, Indiana University Center for Aging Research, Indianapolis, IN 
1998 - 2004 Cornelius and Yvonne Pettinga Scholar in Aging Research
1999 - 2000 Visiting Scholar, History and Psychopathology Research Program, Department of Psychiatry, Cambridge University, United Kingdom
2004 - Present Professor, Department of Medicine, Indiana University School of Medicine, Indianapolis, IN
2004 - Present Cornelius and Yvonne Pettinga Professor in Aging Research

HONORS

1988 Houston Society of Internal Medicine, Outstanding Graduating Resident in Internal Medicine, Baylor College of Medicine
1993 NIA Academic Award
1996 Paul Beeson Physician Faculty Scholars in Aging Research Award. American Federation for Aging Research
1997 Teaching Excellence Award, Indiana University School of Medicine
1999 Tony and Mary Hulman Health Achievement Award for Excellence in Health Services Research
2006 Society of General Internal Medicine Mid-Career Research Mentorship Award
2007 John Hopkins Medicine 6th Annual Award for Excellence in Dementia Care, honoring JAMA publication, "Effectiveness of collaborative care for older adults with Alzheimer disease in primary care: A randomized controlled trial"

CURRENT AND RECENT FUNDING

SELECTED PUBLICATIONS

  1. Callahan CM, Dittus RS, Katz, BP.  Oral corticosteroid therapy for patients with stable chronic obstructive pulmonary disease. A meta-analysis.  Ann Intern Med 1991;114(3):216-23.
  2. Orlander JD, Callahan CM. Fellows hip training in academic general internal medicine: a curriculum survey.  J Gen Intern Med 1991;6(5):460-5.
  3. Callahan CM, Nienaber NA, Hendrie HC, Tierney WM.  Depression in elderly outpatients: primary care physicians' attitudes and practice patterns. J Gen Intern Med 1992;7:26-31.
  4. Wolinsky FD, Callahan CM, Fitzgerald JF, Johnson RJ.  The risk of nursing home placement and subsequent death among older adults.  J Gerontology 1992;47:S173-S182.
  5. Callahan CM.  Psychiatric symptoms in elderly patients due to medications.  Annual Review of Gerontology and Geriatrics 1992;12: 41-75.
  6. Wolinsky FD, Callahan CM, Fitzgerald JF, Johnson RJ.  Changes in functional status and the risks of nursing home placement and death.  J Gerontology 1993;48:S94-S101.
  7. Freund DA, Katz BP, Callahan CM.  Patient outcomes research teams: examples from a study on knee replacement.  Annals of the New York Academy of Science 1993;703:86-94.
  8. Callahan CM, Dittus RS, Hendrie HC, Brater DC, Hui SL, Tierney WM.  Depression in late life: the use of clinical characteristics to focus screening efforts.  J Gerontology 1994;49:M9-M14.
  9. Wolinsky FD, Callahan CM, Fitzgerald JF, Johnson RJ.  The "worried well" myth.  Older adults and the use of health services.  Advances in Medical Sociology.  1994;4:163-83.
  10. Wolinsky FD, Callahan CM, Johnson RJ.  Subjective health status and mortality in the elderly.  In Bruno Vellas, ed. Facts and Research in Gerontology 1994;13-28. New York: Springer Publishing Company.
  11. Callahan CM, Wolinsky FD.  The effect of gender and race on the measurement properties of the CES-D in older adults. Med Care 1994;32:341-56.
  12. Callahan CM, Drake BG, Heck DA, Dittus RS.  Patient outcomes following tri-compartmental total knee replacement: a meta-analysis.  JAMA 1994;271:1349-1357.
  13. Callahan CM, Hendrie HC, Dittus RS, Brater DC, Hui SL, Tierney WM.  Improving treatment of late life depression in primary care. J Am Geriatr Soc 1994;42:839-46.
  14. Callahan CM, Hui SL, Nienaber NA, Musick BS, Tierney WM. Longitudinal study of depression and health services use among elderly primary care patients.  J Am Geriatr Soc 1994;42:833-8.
  15. Callahan CM.  The costs of urinary incontinence.  Pharmacoeconomics 1994;6:183-5.
  16. Wolinsky FD, Culler SD, Callahan CM, Johnson RJ.  Hospital resource consumption among older adults: a prospective analysis of episodes, length of stay, and charges over a seven-year period.  J Gerontology 1994;49:240-52.
  17. Drake BG, Callahan CM, Dittus RS.  Global rating systems used in assessing knee replacement outcomes. J Arthroplasty 1994;9:409-17.
  18. Callahan CM, Hendrie HC, Tierney WM. Documentation and evaluation of cognitive impairment in elderly primary care patients. Ann Intern Med 1995;122:422-29.
  19. Hendrie HC, Callahan CM, Levitt EE, Hui SL, Musick BS, Austrom MG, Nurnberger JI, Tierney WM. Prevalence rates of major depressive disorders. The effects of varying the diagnostic criteria in an older primary care population. Am J Geriatr Psych 1995;3:119-131.
  20. Callahan CM, Drake BG, Heck DA, Dittus RS.  Patient outcomes following uni-compartmental or bi-compartmental knee replacement: a meta-analysis.  Journal of Arthroplasty 1995;10:141-50.
  21. Callahan CM, Wolinsky FD.  Hospitalization for major depression among older Americans.   J Gerontology 1995; 50A:M196-M202.
  22. Culler SD, Callahan CM, Wolinsky FD.  Predicting hospital costs among decedents over time. Med Care 1995;33:1089-105.
  23. Callahan CM, Tierney WM.  Health services use and mortality among elderly primary care patients with alcoholism. J Am Geriatr Soc 1995;43:1378-83.
  24. Callahan CM, Hall KS, Hui SL, Musick BS, Unverzagt FW, Hendrie HC.  Relationship of age, education, and occupation with dementia among a community-based sample of African-Americans. Arch Neurol 1996;53:134-140.
  25. Callahan CM, Dittus RS, Tierney WM.  Primary care physicians medical decision-making for late life depression. J Gen Intern Med 1996;11:218-225.
  26. Wolinsky FD, Stump TE, Callahan CM, Johnson RJ.  Consistency and change in functional status among older adults over time. J Aging Health 1996;8:155-182.
  27. Callahan CM, Hendrie HC, Tierney WM.  The recognition and treatment of late life depression: a view from primary care.  Int J Psych Med 1996;26:155-171.
  28. Clark DO, Callahan CM, Mungai SM, Wolinsky FD.  Physical function among retirement-aged African-American men and women. Gerontologist 1996;36:322-31.
  29. Callahan CM, Hendrie HC, Nienaber NA, Tierney WM.  Suicidal ideation among elderly primary care patients.   J Amer Geriatr Soc 1996;44:1205-1209.
  30. Callahan CM, Wolinsky FD.  Hospitalization for pneumonia and subsequent mortality among older adults.  J Gerontology 1996;51A:M276-M282
  31. Callahan CM, Kesterson JG, Tierney WM.  The association of symptoms of depression with diagnostic testing among older adults. Ann Intern Med  1997;126:426-432.
  32. Wolinsky FD, Stump TE, Callahan CM.  Does being placed in a nursing home make you sicker and more likely to die? In Schaie KW, Willis SL, Hayward MD, eds., Societal Mechanisms for Maintaining Competence in Old Age.  New York: Springer, 1997;94-130.
  33. Callahan CM, Stump TE, Stroupe KT, Tierney WM.  Cost of health care for a community of older adults in an urban academic health care system.  J Amer Geriatr Soc 1998;46:1371-77.
  34. Callahan CM, Wolinsky FD, Stump TE, Nienaber NA, Hui SL, Tierney WM.  Mortality, symptoms, and functional impairment in late-life depression.  J Gen Intern Med 1998;13:746-52.
  35. Dwyer EV, Arean PA, Yaffe K, Callahan CM.  Minor depression in a primary care geriatric patient: case finding and intervention.  J Clinical Outcomes Management 1999;6:41-50.
  36. Clark DO, Kroenke K, Callahan CM, McDonald CM.  Validity and utility of patient-reported health measures on hospital admission. J Clin Epidemiol 1999;52(1);65-71.
  37. Perkins AJ, Hendrie HC, Callahan CM, Gao S, Unverzagt FW, Xu Y, Hall KS, Hui SL.  Association of antioxidants with memory in a multiethnic elderly sample using the third National Health and Nutrition Examination Survey. Am J. Epidemiol 1999;150(1):37-44.
  38. Wallihan DB, Stump TE, Callahan CM.  Accuracy of self-reported health service use and patterns of care among urban older adults.  Med Care 1999;37(7):662-70.
  39. Callahan CM, Haag KM, Buchanan NN, Nisi R.  Decision-making for percutaneous endoscopic gastrostomy among older adults in a community setting.  J Amer Geriatr Soc 1999;47(9):1105-9.
  40. Kroenke K, Stump T, Clark DO, Callahan CM, McDonald CJ. Symptoms in hospitalized patients: outcome and satisfaction with care. Am J Med 1999;107(5):425-31.
  41. Fisch M, Callahan CM, Kesterson JC, Nichols C, Tierney WM. The use of an electronic patient record system to identify advanced cancer patients and antidepressant drug use. J Palliat Med 1999;2:403-409.
  42. Callahan CM. Improving quality of care for depression in primary care. Med Care 2000;38(6):549-551.
  43. Stroupe KT, Murray MD, Stump TE, Callahan CM. Association between medication supplies and healthcare costs in older adults from an urban healthcare system. J Am Geriatr Soc 2000;48(7):760-768.
  44. Callahan CM, Haag KM, Weinberger M, Tierney WM, Buchanan NN, Stump TE, Nisi R. Outcomes of percutaneous endoscopic gastrostomy among older adults in a community setting. J Amer Geriatr Soc 2000;48(9):1048-1054.
  45. Mezey MD, Bottrell MM, Berkman BJ, Callahan CM, Fulmer TT, Mitty EL, Paveza GJ, Siegler EL, Strumpf NE. The Encyclopedia of Elder Care: The Comprehensive Resource on Geriatric and Social Care. New York: Springer Publishing Company, 2000.
  46. Callahan CM. Quality Improvement Research on Late Life Depression in Primary Care. Med Care 2001;39(8):772-84.
  47. Unutzer J, Katon W, Williams Jr JW, Callahan CM, Harpole L, Hunkeler EM, Hoffing M, Arean P, Hegel MT, Schoenbaum M, Oishi SM, Langston CA. Improving Primary Care for Depression in Late Life the Design of a Multicenter Randomized Trial. Med Care 2001;39(8):785-99.
  48. Stump TE, Callahan CM, Hendrie HC. Cognitive impairment and mortality in older primary care patients. J Am Geriatr Soc 2001;49:934-41.
  49. Callahan CM. Glass houses and the glory of the climb. Ann Intern Med 2001; 135:613-5.
  50. Callahan CM, Buchanan NN, Stump TE. Healthcare costs associated with percutaneous endoscopic gastrostomy among older adults in a defined community. J Am Geriatr Soc 2001; 49(11):1525-1529.
  51. Callahan CM, Unverzagt FW, Hui SL, Perkins AJ, Hendrie HC. Six-Item Screener to Identify Cognitive Impairment Among Potential Subjects for Clinical Research. Med Care 2002;40(9):771-781.
  52. Callahan CM, Counsell SR. Measuring and communicating the value of geriatrics. J Am Geriatr Soc 2002;50(10):1741-3.
  53. Unutzer J, Katon W, Callahan CM, Williams JW Jr, Hunkeler E, Harpole L, Hoffing M, Della Penna RD, Noel PH, Lin EH, Arean PA, Hegel MT, Tang L, Belin TR, Oishi S, Langston C. Collaborative care management of late-life depression in the primary care setting: a randomized controlled trial. JAMA. 2002; 288(22):2836-45.
  54. Sha MC, Callahan CM. The efficacy of pentoxifylline in the treatment of vascular dementia: a systematic review. Alzheimer Dis Assoc Disord 2003;17(1):46-54.
  55. Unutzer J, Katon W, Callahan CM, Williams JW, Hunkeler E, Harpole L, Hoffing M, Della Penna RD, Noel PH, Lin EH, Tang L, Oishi S. Depression Treatment in a Sample of 1,801 Depressed Older Adults in Primary Care. J Am Geriatr Soc 2003;51(4):505-514.
  56. Weiner M, Stump TE, Callahan CM, Lewis JN, McDonald CJ. A practical method of linking data from Medicare claims and a comprehensive electronic medical records system. Int J Med Inf. 2003 Aug;71(1):57-69.
  57. Callahan CM, McHorney CA. Successful aging and the humility of perspective. Ann Intern Med. 2003 Sep 2;139(5 Pt 2):389-90.
  58. Murray MD, Callahan CM. Improving medication use for older adults: an integrated research agenda. Ann Intern Med. 2003;139(5 Pt 2):425-9.
  59. Weiner M, Callahan CM, Tierney WM, Overhage JM, Mamlin B, Dexter PR, McDonald CJ. Using information technology to improve the health care of older adults. Ann Intern Med. 2003;139(5 Pt 2):430-6.
  60. Landefeld CS, Callahan CM, Woolard N. General internal medicine and geriatrics: building a foundation to improve the training of general internists in the care of older adults. Ann Intern Med. 2003;139(7):609-14.
  61. Oishi SM, Shoai R, Katon W, Callahan CM, Unutzer J. Impacting late life depression-integrating a depression intervention into primary care. Psychiatric Quarterly. 2003 Spring;74(1):75-89.
  62. Charney DS, Reynolds CF 3rd, Lewis L, Lebowitz BD, Sunderland T, Alexopoulos GS, Blazer DG, Katz IR, Meyers BS, Arean PA, Borson S, Brown C, Bruce ML, Callahan CM, et al; Depression and Bipolar Support Alliance. Depression and Bipolar Support Alliance consensus statement on the unmet needs in diagnosis and treatment of mood disorders in late life. Arch Gen Psychiatry. 2003 Jul;60(7):664-72.
  63. Guerriero Austrom M, Damush TM, Hartwell CW, Perkins T, Unverzagt F, Boustani M, Hendrie HC, Callahan CM. Development and implementation of nonpharmacologic protocols for the management of patients with Alzheimer's disease and their families in a multiracial primary care setting. Gerontologist. 2004 Aug;44(4):548-53.
  64. Fraser SA, Kroenke K, Callahan CM, Hui SL, Williams JW Jr, Unutzer J. Low yield of thyroid-stimulating hormone testing in elderly patients with depression. Gen Hosp Psychiatry. 2004 Jul-Aug;26(4):302-9.
  65. Perkins AJ, Kroenke K, Unutzer J, Katon W, Williams JW, Hope C, Callahan CM. Common comorbidity scales were similar in their ability to predict health care costs and mortality. J Clin Epidemiol. 2004 Oct;57(10):1040-8.
  66. Lowe B, Unutzer J, Callahan CM, Perkins AJ, Kroenke K. Monitoring Depression Treatment Outcomes With the Patient Health Questionnaire-9. Med Care. 2004 Dec;42(12):1194-201.
  67. Terrell KM, Perkins AJ, Chisholm CD, McGrath RB, Buttar AB, Callahan CM . Health services utilization by older adults in an urban public health system. Am J Emerg Med. 2005 Feb;23:135-6.
  68. Harpole LH, Williams JW Jr, Olsen MK, Stechuchak KM, Oddone E, Callahan CM, Katon WJ, Lin EH, Grypma LM, Unutzer J. Improving depression outcomes in older adults with comorbid medical illness. Gen Hosp Psychiatry. 2005 Jan-Feb;27(1):4-12.
  69. Sha MC, Callahan CM, Counsell SR, Westmoreland GR, Stump TE, Kroenke K. Physical symptoms as a predictor of health care use and mortality among older adults . Am J Med. 2005 Mar;118(3):301-6.
  70. Callahan CM, Kroenke K, Counsell SR, Hendrie HC, Perkins AJ, Katon W, Noel PH, Harpole L, Hunkeler EM, Unutzer J; for the IMPACT Investigators. Treatment of depression improves physical functioning in older adults . J Am Geriatr Soc. 2005 Mar;53(3):367-73.
  71. Terrell KM, Chisholm CD, McGrath RB, Perkins AJ , Buttar AB, Callahan CM . Health services utilization by older adults in an urban public health system .  Am J Emerg Med. 2005 Mar;23(2):233-4.
  72. Weiner M, Stump TE, Callahan CM, Lewis JN, McDonald CJ.  Pursuing integration of performance measures into electronic medical records: beta adrenergic receptor antagonist medications .  Qual Saf Health Care. 2005 Apr;14(2):99-106.
  73. Boustani M, Callahan CM, Unverzagt FW, Austrom MG, Perkins AJ, Fultz BA, Hui SL, Hendrie HC. Implementing a screening and diagnosis program for dementia in primary care. J Gen Intern Med. 2005 Jul;20(7):572-7.
  74. Clark DO, Callahan CM, Counsell SR. Reliability and validity of a steadiness score. J Am Geriatr Soc. 2005 Sep;53(9):1582-6.
  75. Katon WJ, Schoenbaum M, Fan MY, Callahan CM, Williams J Jr, Hunkeler E, Harpole L, Zhou XH, Langston C, Unutzer J; for the IMPACT investigators. Cost-effectiveness of improving primary care treatment of late-life depression. Arch Gen Psychiatry. 2005 Dec;62(12):1313-20.
  76. Schubert CC, Boustani M, Callahan CM, Perkins AJ , Carney CP, Fox C, Unverzagt F, Hui S, Hendrie HC. Comorbidity profile of dementia patients in primary care: are they sicker? J Am Geriatr Soc. 2006 Jan;54(1):104-9.
  77. Boustani M, Perkins AJ, Fox C, Unverzagt F, Austrom MG, Fultz B, Hui S, Callahan CM, Hendrie HC.  Who refuses the diagnostic assessment for dementia in primary care? Int J Geriatr Psychiatry. 2006 Jun 16;21(6):556-63.
  78. Callahan CM, Boustani MA, Unverzagt FW, Austrom MG, Damush TM, Perkins AJ, Fultz BA, Hui SL, Counsell SR, Hendrie HC. Effectiveness of collaborative care for older adults with Alzheimer disease in primary care: A randomized controlled trial. JAMA. 2006 May 10;295(18):2148-57.
  79. Counsell SR, Callahan CM, Buttar AB, Clark DO, Frank KI. Geriatric Resources for Assessment and Care of Elders (GRACE): a new model of primary care for low-income seniors. J Am Geriatr Soc. 2006 Jul;54(7):1136-41.
  80. Weiner M, Quwatli Z, Perkins AJ, Lewis JN, Callahan CM.  Limitation of a single clinical data source for measuring physicians' performance on quality indicators.  J Am Geriatr Soc. 2006 Aug;54(8):1256-60.
  81. Callahan CM.  Depression in primary care: encouragement and caution for the business case. J Gen Intern Med. 2006 Oct;21(10):1125-7.
  82. Guerriero Austrom M, Hartwell C, Moore P, Perkins AJ, Damush T, Unverzagt FW, Boustani M, Hendrie HC, Callahan CM. An integrated model of comprehensive care for people with Alzheimer’s disease and their caregivers in a primary care setting. Dementia. Sage Publications. 2006;5:339-52.
  83. Boustani M, Sachs G, Callahan CM. Can primary care meet the biopsychosocial needs of older adults with dementia? J Gen Intern Med. 2007 Nov;22(11):1625-7.   
  84. Unverzagt FW, Sujuan Gao, Lane KA, Callahan C, Ogunniyi A, Baiyewu O, Gureje O, Hall KS, Hendrie HC. Mild cognitive dysfunction: an epidemiological perspective with an emphasis on african americans. J Geriatr Psychiatry Neurol. 2007 Dec;20(4):215-26.
  85. Counsell SR, Callahan CM, Clark DO, Tu W, Buttar AB, Stump TE, Ricketts GD. Geriatric care management for low-income seniors: a randomized controlled trial. JAMA. 2007 Dec 12;298(22):2623-33.
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