Cameron Kaplan, PhD

Title(s)Associate Professor of Medicine
SchoolKeck School of Medicine of Usc
Address2020 Zonal Ave. IRD 306
Off Campus
los angeles CA 90033
ORCID ORCID Icon0000-0001-6430-6816 Additional info
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    Other Positions
    Title(s)Interim Director, USC Gehr Family Center for Health Systems and Innovation


    Collapse Biography 
    Collapse Education and Training
    University of Pittsburgh, Pittsburgh, PAPostdoc2013Pharmaceutical Health Economics
    University of California, Santa Barbara, Santa Barbara, CAPh.D.2011Economics
    University of California, Santa Barbara , Santa Barbara, CAM.A.2008Economics
    Brandeis University, Waltham, MAB.A.2005Economics

    Collapse Overview 

    Collapse Research 
    Collapse Research Activities and Funding
    COVID-19 Mitigation Efforts and Disparities in Access to Routine Preventive Care and Chronic Disease Management
    NIH U01MD017427Sep 20, 2021 - May 31, 2025
    Role: Principal Investigator
    ACA Tobacco Surcharge: Affordability and Enrollment among Tobacco Users
    American Cancer Society RSGI-17-234-01-CPHPSFeb 1, 2018 - Dec 31, 2021
    Role: Principal Investigator
    Impact of Medicare Part D Gap Closure on Health Outcomes
    NIH R01AG054424Sep 15, 2017 - Jun 30, 2020
    Role: Principal Investigator

    Collapse ORNG Applications 
    Collapse Featured Publications

    Collapse Featured Content 
    Collapse Twitter

    Collapse Bibliographic 
    Collapse Publications
    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help. to make corrections and additions.
    Newest   |   Oldest   |   Most Cited   |   Most Discussed   |   Timeline   |   Field Summary   |   Plain Text
    Altmetrics Details PMC Citations indicate the number of times the publication was cited by articles in PubMed Central, and the Altmetric score represents citations in news articles and social media. (Note that publications are often cited in additional ways that are not shown here.) Fields are based on how the National Library of Medicine (NLM) classifies the publication's journal and might not represent the specific topic of the publication. Translation tags are based on the publication type and the MeSH terms NLM assigns to the publication. Some publications (especially newer ones and publications not in PubMed) might not yet be assigned Field or Translation tags.) Click a Field or Translation tag to filter the publications.
    1. The Cost of Opioid Use in High-Risk Hospitalized Infants. J Surg Res. 2024 Sep 05; 302:825-835. Keane OA, Ourshalimian S, Kaplan C, Gong C, Lakshmanan A, Hintz S, Lee HC, Ing M, Barq R, Nguyen N, Kelley-Quon LI. PMID: 39241291.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    2. Institutional and Regional Variation in Opioid Prescribing for Hospitalized Infants in the US. JAMA Netw Open. 2024 03 04; 7(3):e240555. Keane OA, Ourshalimian S, Lakshmanan A, Lee HC, Hintz SR, Nguyen N, Ing MC, Gong CL, Kaplan C, Kelley-Quon LI. PMID: 38470421; PMCID: PMC10936113.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    3. The impact of COVID-19 on racial and ethnic disparities in presentation with perforated appendicitis in children: A retrospective cohort study. Surg Open Sci. 2024 Mar; 18:53-60. Odegard MN, Ourshalimian SA, Chen SY, Russell CJ, Obinelo AU, Kaplan CM, Kelley-Quon LI. PMID: 38322023; PMCID: PMC10844646.
      View in: PubMed   Mentions:
    4. The Impact of Prescription Drug Coverage on Disparities in Adherence and Medication Use: A Systematic Review. Med Care Res Rev. 2024 Apr; 81(2):87-95. Kaplan CM, Waters TM, Clear ER, Graves EE, Henderson S. PMID: 38174355.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    5. Disparities in access to COVID-19 testing in Los Angeles County. Prev Med Rep. 2024 Jan; 37:102567. Khalifeh Z, Saluja S, Lam CN, Kaplan C. PMID: 38205170; PMCID: PMC10776643.
      View in: PubMed   Mentions:
    6. Impact of Volumetric Dosimetry on the Projected Cost of Radiation-Related Late Effects Screening After Childhood Cancer: A Real-World Cohort Analysis. Oncologist. 2023 09 07; 28(9):e784-e792. Cohen-Cutler S, Kaplan C, Olch A, Wong K, Malvar J, Constine LS, Freyer DR. PMID: 37284853; PMCID: PMC10485276.
      View in: PubMed   Mentions:    Fields:    Translation:HumansPHPublic Health
    7. Provision of Food Allergy Care in the United Kingdom and United States: Current Issues and Future Directions. J Allergy Clin Immunol Pract. 2023 07; 11(7):2054-2066. Chong AC, Diwakar L, Kaplan CM, Fox AT, Abrams EM, Greenhawt M, Oppenheimer JJ, Shaker MS. PMID: 36990429.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    8. Race Differences in Patient-Reported Symptoms during Chemotherapy among Women with Early-Stage Hormone Receptor-Positive Breast Cancer. Cancer Epidemiol Biomarkers Prev. 2023 02 06; 32(2):167-174. Hu X, Kaplan CM, Martin MY, Walker MS, Stepanski E, Schwartzberg LS, Vidal GA, Graetz I. PMID: 36166516; PMCID: PMC9905215.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    9. Alleviating Financial Hardships Associated with High-Deductible Health Plans for Adults with Chronic Conditions Through Health Savings Accounts. J Gen Intern Med. 2023 05; 38(7):1593-1598. Park KE, Saluja S, Kaplan CM. PMID: 36600078; PMCID: PMC10212892.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    10. Effects of Medicare Part D coverage gap closure on utilization of branded and generic drugs. Health Econ. 2023 03; 32(3):639-653. Liu J, Zhang Y, Kaplan CM. PMID: 36399360; PMCID: PMC9898097.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    11. Racial Differences in Patient-Reported Symptoms and Adherence to Adjuvant Endocrine Therapy Among Women With Early-Stage, Hormone Receptor-Positive Breast Cancer. JAMA Netw Open. 2022 08 01; 5(8):e2225485. Hu X, Walker MS, Stepanski E, Kaplan CM, Martin MY, Vidal GA, Schwartzberg LS, Graetz I. PMID: 35947386; PMCID: PMC9366541.
      View in: PubMed   Mentions: 13     Fields:    Translation:Humans
    12. Combined impact of Medicare's hospital pay for performance programs on quality and safety outcomes is mixed. BMC Health Serv Res. 2022 Jul 28; 22(1):958. Waters TM, Burns N, Kaplan CM, Graetz I, Benitez J, Cardarelli R, Daniels MJ. PMID: 35902910; PMCID: PMC9330620.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    13. Relationship between mask wearing, testing, and vaccine willingness among Los Angeles County adults during the peak of the COVID-19 pandemic. Transl Behav Med. 2022 03 17; 12(3):480-485. Lam CN, Kaplan C, Saluja S. PMID: 34865166; PMCID: PMC8690286.
      View in: PubMed   Mentions: 6     Fields:    Translation:HumansCellsPHPublic Health
    14. Iatrogenic opioid withdrawal in hospitalized infants. J Perinatol. 2022 03; 42(3):399-400. Kelley-Quon LI, Zamora AK, Ourshalimian S, Kim E, Leventhal AM, Kaplan C, Lakshmanan A. PMID: 35169229; PMCID: PMC8995048.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    15. Differential Effects by Mental Health Status of Filling the Medicare Part D Coverage Gap. Med Care. 2022 02 01; 60(2):133-139. Liu J, Zhang Y, Kaplan CM. PMID: 35030562; PMCID: PMC8813000.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    16. Assessing the Feasibility of an Online Training Designed to Enable Community Health Workers to Deliver a Comprehensive, Evidence-Based Weight Loss Intervention for Rural African Americans of Faith. J Cancer Educ. 2021 12; 36(6):1277-1284. Yeary KHK, Ounpraseuth S, Wan F, Graetz I, Fagan P, Huff-Davis A, Kaplan C, Johnson K, Hutchins E. PMID: 32441002; PMCID: PMC7679277.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    17. Cannabis Use and Risk of Acute Kidney Injury in Patients with Advanced Chronic Kidney Disease Transitioning to Dialysis. Cannabis Cannabinoid Res. 2023 02; 8(1):138-147. Potukuchi PK, Moradi H, Park F, Kaplan C, Thomas F, Dashputre AA, Sumida K, Molnar MZ, Gaipov A, Gatwood JD, Rhee C, Streja E, Kalantar-Zadeh K, Kovesdy CP. PMID: 34597156; PMCID: PMC9940810.
      View in: PubMed   Mentions: 2     Fields:    Translation:HumansAnimals
    18. Preventing Financial Strain for Low- and Moderate-Income Adults: a Comparison of Medicaid, Marketplace, and Employer-Sponsored Insurance. J Gen Intern Med. 2022 08; 37(10):2373-2381. Saluja S, Kaplan C, Dhupati P, McCormick D. PMID: 34524622; PMCID: PMC8442638.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    19. Disparities in COVID-19 vaccine hesitancy among Los Angeles County adults after vaccine authorization. Prev Med Rep. 2021 Dec; 24:101544. Saluja S, Nok Lam C, Wishart D, McMorris A, Cousineau MR, Kaplan CM. PMID: 34493966; PMCID: PMC8413116.
      View in: PubMed   Mentions: 11  
    20. Characterization of Clinical Symptoms by Race Among Women With Early-Stage, Hormone Receptor-Positive Breast Cancer Before Starting Chemotherapy. JAMA Netw Open. 2021 06 01; 4(6):e2112076. Hu X, Chehal PK, Kaplan C, Krukowski RA, Lan RH, Stepanski E, Schwartzberg L, Vidal G, Graetz I. PMID: 34061200; PMCID: PMC8170541.
      View in: PubMed   Mentions: 7     Fields:    Translation:Humans
    21. State policies limiting premium surcharges for tobacco and their impact on health insurance enrollment. Health Serv Res. 2020 12; 55(6):983-992. Kaplan CM, Kaplan EK. PMID: 33107609; PMCID: PMC7704470.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    22. Marketplace Premiums Rise Faster For Tobacco Users Because Of Subsidy Design. Health Aff (Millwood). 2020 09; 39(9):1540-1545. Manz KC, Waters TM, Kaplan CM. PMID: 32897786.
      View in: PubMed   Mentions: 1     Fields:    Translation:HumansAnimals
    23. Implementation costs of a community health worker delivered weight loss intervention in black churches serving underserved communities. Prev Med Rep. 2020 Jun; 18:101084. Yeary KHK, Kaplan CM, Hutchins E. PMID: 32309114; PMCID: PMC7155228.
      View in: PubMed   Mentions: 2  
    24. Sexually Transmitted Infections and Contraceptive Use in Adolescents. Am J Prev Med. 2020 04; 58(4):536-546. Derefinko KJ, Ashby S, Hayes T, Kaplan C, Bursac Z, García FIS, Madjlesi A, Tonkin L, Bowden M, Popescu F, Waters T. PMID: 32081571.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    25. Retrospective Analysis of the Impact of Adalimumab Initiation on Corticosteroid Utilization and Medical Costs Among Biologic-Naïve Patients with Rheumatoid Arthritis. Rheumatol Ther. 2020 Mar; 7(1):133-147. Spivey CA, Winthrop KL, Griffith J, Kaplan CM, Qiao Y, Postlethwaite AE, Wang J. PMID: 31741182; PMCID: PMC7021911.
      View in: PubMed   Mentions:
    26. How Have 30-Day Readmission Penalties Affected Racial Disparities in Readmissions?: an Analysis from 2007 to 2014 in Five US States. J Gen Intern Med. 2019 06; 34(6):878-883. Kaplan CM, Thompson MP, Waters TM. PMID: 30737680; PMCID: PMC6544695.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    27. Patient-Centered Medical Homes in Community Oncology Practices: Changes in Spending and Care Quality Associated With the COME HOME Experience. J Oncol Pract. 2019 01; 15(1):e56-e64. Waters TM, Kaplan CM, Graetz I, Price MM, Stevens LA, McAneny BL. PMID: 30523764.
      View in: PubMed   Mentions: 10     Fields:    Translation:Humans
    28. Three years in - changing plan features in the U.S. health insurance marketplace. BMC Health Serv Res. 2018 06 15; 18(1):450. McKillop CN, Waters TM, Kaplan CM, Kaplan EK, Thompson MP, Graetz I. PMID: 29902996; PMCID: PMC6002983.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    29. Smoking Cessation for Smokers Not Ready to Quit: Meta-analysis and Cost-effectiveness Analysis. Am J Prev Med. 2018 08; 55(2):253-262. Ali A, Kaplan CM, Derefinko KJ, Klesges RC. PMID: 29903568; PMCID: PMC6055474.
      View in: PubMed   Mentions: 20     Fields:    Translation:Humans
    30. The comparative effectiveness of two brief tobacco interventions in the U.S. Air Force: Perceived harm and intentions-to-use of tobacco products. Tob Induc Dis. 2018; 16:26. Bursac Z, Klesges RC, Little MA, Linde BD, Popova L, Kaplan CM, Talcott GW. PMID: 31516426; PMCID: PMC6659509.
      View in: PubMed   Mentions:
    31. A Retrospective Analysis of Corticosteroid Utilization Before Initiation of Biologic DMARDs Among Patients with Rheumatoid Arthritis in the United States. Rheumatol Ther. 2018 Jun; 5(1):255-270. Spivey CA, Griffith J, Kaplan C, Postlethwaite A, Ganguli A, Wang J. PMID: 29204858; PMCID: PMC5935609.
      View in: PubMed   Mentions: 8  
    32. Capsule Commentary on Saloner et al., Price Transparency in Primary Care: Can Patients Learn About Costs When Scheduling an Appointment? J Gen Intern Med. 2017 07; 32(7):801. Kaplan CM. PMID: 28405793; PMCID: PMC5481247.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    33. Trends over time in enrollment in non-group health insurance plans by tobacco use in the United States. Prev Med Rep. 2017 Sep; 7:46-49. Pesko MF, Maclean JC, Kaplan CM, Hill SC. PMID: 28593122; PMCID: PMC5447394.
      View in: PubMed   Mentions: 2  
    34. Lessons Learned From the Affordable Care Act: The Premium Subsidy Design May Promote Adverse Selection. Med Care Res Rev. 2018 12; 75(6):762-772. Graetz I, McKillop CN, Kaplan CM, Waters TM. PMID: 29148343; PMCID: PMC6238169.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    35. Most Hospitals Received Annual Penalties For Excess Readmissions, But Some Fared Better Than Others. Health Aff (Millwood). 2017 05 01; 36(5):893-901. Thompson MP, Waters TM, Kaplan CM, Cao Y, Bazzoli GJ. PMID: 28461357.
      View in: PubMed   Mentions: 21     Fields:    Translation:Humans
    36. Are Preferences for Aggressive Medical Treatment Associated with Healthcare Utilization in the Very Old? J Palliat Med. 2017 Jun; 20(6):618-624. Albert SM, Lunney JR, Ye L, Boudreau R, Ives D, Satterfield S, Kaplan CM, Waters T, Ayonayon HN, Rubin SM, Newman AB, Harris T. PMID: 28333569; PMCID: PMC5455611.
      View in: PubMed   Mentions:    Fields:    
    37. Economic Analyses of an Alcohol Misconduct Prevention Program in a Military Setting. Mil Med. 2017 01; 182(1):e1562-e1567. Li T, Waters TM, Kaplan EK, Kaplan CM, Nyarko KA, Derefinko KJ, Talcott GW, Klesges RC. PMID: 28051974.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    38. Reliability of 30-Day Readmission Measures Used in the Hospital Readmission Reduction Program. Health Serv Res. 2016 Dec; 51(6):2095-2114. Thompson MP, Kaplan CM, Cao Y, Bazzoli GJ, Waters TM. PMID: 27766634; PMCID: PMC5134200.
      View in: PubMed   Mentions: 14     Fields:    Translation:Humans
    39. Capsule Commentary on Kesselheim et. al., Variations in Patients' Perceptions and Use of Generic Drugs: Results of a National Survey. J Gen Intern Med. 2016 06; 31(6):647. Kaplan CM. PMID: 27067349; PMCID: PMC4870431.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    40. Anticipatory Behavior in Response to Medicare Part D's Coverage Gap. Health Econ. 2017 03; 26(3):338-351. Kaplan CM, Zhang Y. PMID: 26749399.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    41. Tobacco Surcharges on 2015 Health Insurance Plans Sold in Federally Facilitated Marketplaces: Variations by Age and Geography and Implications for Health Equity. Am J Public Health. 2015 Nov; 105 Suppl 5:S696-8. Liber AC, Drope JM, Graetz I, Waters TM, Kaplan CM. PMID: 26447913; PMCID: PMC4627515.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    42. Community Oncology Medical Homes: Physician-Driven Change to Improve Patient Care and Reduce Costs. J Oncol Pract. 2015 Nov; 11(6):462-7. Waters TM, Webster JA, Stevens LA, Li T, Kaplan CM, Graetz I, McAneny BL. PMID: 26220931.
      View in: PubMed   Mentions: 15     Fields:    Translation:Humans
    43. The U.S. health insurance marketplace: are premiums truly affordable? Ann Intern Med. 2014 Oct 21; 161(8):599-604. Graetz I, Kaplan CM, Kaplan EK, Bailey JE, Waters TM. PMID: 25199512.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    44. Most exchange plans charge lower tobacco surcharges than allowed, but many tobacco users lack affordable coverage. Health Aff (Millwood). 2014 Aug; 33(8):1466-73. Kaplan CM, Graetz I, Waters TM. PMID: 25092850.
      View in: PubMed   Mentions: 10     Fields:    Translation:Humans
    45. Medication adherence and readmission after myocardial infarction in the Medicare population. Am J Manag Care. 2014; 20(11):e498-505. Zhang Y, Kaplan CM, Baik SH, Chang CC, Lave JR. PMID: 25651604; PMCID: PMC4321738.
      View in: PubMed   Mentions: 13     Fields:    Translation:Humans
    46. The January effect: medication reinitiation among Medicare Part D beneficiaries. Health Econ. 2014 Nov; 23(11):1287-300. Kaplan C, Zhang Y. PMID: 23943539; PMCID: PMC3841288.
      View in: PubMed   Mentions: 10     Fields:    Translation:Humans
    47. Assessing the comparative-effectiveness of antidepressants commonly prescribed for depression in the US Medicare population. J Ment Health Policy Econ. 2012 Dec; 15(4):171-8. Kaplan C, Zhang Y. PMID: 23525835; PMCID: PMC3608926.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    48. Geographic variation in outpatient antibiotic prescribing among older adults. Arch Intern Med. 2012 Oct 22; 172(19):1465-71. Zhang Y, Steinman MA, Kaplan CM. PMID: 23007171; PMCID: PMC3530642.
      View in: PubMed   Mentions: 60     Fields:    Translation:Humans
    49. Disability, race/ethnicity, and medication adherence among Medicare myocardial infarction survivors. Am Heart J. 2012 Sep; 164(3):425-433.e4. Zhang Y, Baik SH, Chang CC, Kaplan CM, Lave JR. PMID: 22980311; PMCID: PMC3445297.
      View in: PubMed   Mentions: 11     Fields:    Translation:Humans
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    NIH Funding Acknowledgment: Important - All publications resulting from the utilization of SC CTSI resources are required to credit the SC CTSI grant by including the NIH funding acknowledgment and must comply with the NIH Public Access Policy.

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