# Benjamin Chastek

**Type:** Researchers  
**Canonical URL:** https://scholariq.org/researchers/benjamin-chastek/

## Facts

| Field | Value |
| --- | --- |
| Citations | 1,245 |
| Field | Inflammatory Bowel Disease |
| h-index | 19 |
| i10-index | 25 |
| Last Known Institution | Optum (United States) |
| OpenAlex ID | https://openalex.org/A5010975448 |
| ORCID iD | 0000-0002-9759-6001 |
| Works | 127 |

## Researcher papers

- [Health Care Costs for Patients With Cancer at the End of Life](https://scholariq.org/papers/health-care-costs-for-patients-with-cancer-at-the-end-of-life/)
- [Economic Burden of Illness Among Patients with Severe Asthma in a Managed Care Setting](https://scholariq.org/papers/economic-burden-of-illness-among-patients-with-severe-asthma-in-a-managed-care/)
- [Medical chart validation of an algorithm for identifying multiple sclerosis relapse in healthcare claims](https://scholariq.org/papers/medical-chart-validation-of-an-algorithm-for-identifying-multiple-sclerosis/)
- [Estimating the Incidence and Prevalence of Juvenile-Onset Recurrent Respiratory Papillomatosis in Publicly and Privately Insured Claims Databases in the United States](https://scholariq.org/papers/estimating-the-incidence-and-prevalence-of-juvenile-onset-recurrent-respiratory/)
- [Racial and ethnic disparity in clinical outcomes among patients with confirmed COVID-19 infection in a large US electronic health record database](https://scholariq.org/papers/racial-and-ethnic-disparity-in-clinical-outcomes-among-patients-with-confirmed/)
- [Osteoporotic fracture trends in a population of US managed care enrollees from 2007 to 2017](https://scholariq.org/papers/osteoporotic-fracture-trends-in-a-population-of-us-managed-care-enrollees-from/)
- [Treatment Patterns Among Patients with Psoriatic Arthritis Treated with a Biologic in the United States: Descriptive Analyses from an Administrative Claims Database](https://scholariq.org/papers/treatment-patterns-among-patients-with-psoriatic-arthritis-treated-with-a/)
- [A Retrospective Cohort Study Comparing Utilization and Costs of Biologic Therapies and JAK Inhibitor Therapy Across Four Common Inflammatory Indications in Adult US Managed Care Patients](https://scholariq.org/papers/a-retrospective-cohort-study-comparing-utilization-and-costs-of-biologic/)
- [Cost and Effectiveness of Biologics for Rheumatoid Arthritis in a Commercially Insured Population](https://scholariq.org/papers/cost-and-effectiveness-of-biologics-for-rheumatoid-arthritis-in-a-commercially/)
- [Outcomes of tumor necrosis factor inhibitor cycling versus switching to a disease-modifying anti-rheumatic drug with a new mechanism of action among patients with rheumatoid arthritis](https://scholariq.org/papers/outcomes-of-tumor-necrosis-factor-inhibitor-cycling-versus-switching-to-a/)
- [Healthcare Resource Utilization and Associated Costs in Patients With Systemic Lupus Erythematosus Diagnosed With Lupus Nephritis](https://scholariq.org/papers/healthcare-resource-utilization-and-associated-costs-in-patients-with-systemic/)
- [Healthcare resource utilization and costs in patients with a newly confirmed diagnosis of lupus nephritis in the United States over a 5-year follow-up period](https://scholariq.org/papers/healthcare-resource-utilization-and-costs-in-patients-with-a-newly-confirmed/)

## Researcher topics

- [Inflammatory Bowel Disease](https://scholariq.org/topics/inflammatory-bowel-disease/)
- [Rheumatoid Arthritis Research and Therapies](https://scholariq.org/topics/rheumatoid-arthritis-research-and-therapies/)
- [Biosimilars and Bioanalytical Methods](https://scholariq.org/topics/biosimilars-and-bioanalytical-methods/)
- [Economic and Financial Impacts of Cancer](https://scholariq.org/topics/economic-and-financial-impacts-of-cancer/)
- [Microscopic Colitis](https://scholariq.org/topics/microscopic-colitis/)

## Researcher university

- [Optum (United States)](https://scholariq.org/institutions/optum-united-states/)

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Source: ScholarIQ — public research metadata, principally OpenAlex. See https://scholariq.org/sources/ for provenance and https://scholariq.org/methodology/ for what these figures mean.