Study Results from Johns Hopkins University Broaden Understanding of Managed Care (Medicare Advantage Networks for Surgical Specialists): Managed Care

2026 MAR 02 (NewsRx) -- By a News Reporter-Staff News Editor at Insurance Daily News -- Current study results on Managed Care have been published. According to news reporting out of Baltimore, Maryland, by NewsRx editors, research stated, “Medicare Advantage (MA) covers more Medicare beneficiaries than traditional Medicare. MA plans limit the providers that beneficiaries see through provider networks.”

Our news journalists obtained a quote from the research from Johns Hopkins University, “Yet, there is limited evidence examining the inclusion of surgical specialists in MA plan networks. We conducted a cross-sectional retrospective analysis of MA surgical networks across six specialties: general surgery, orthopaedic surgery, thoracic surgery, plastic surgery, vascular surgery, and neurosurgery. We linked 2022 Ideon provider network data with 2021 IQVIA OneKey provider data and 2022 MA plan enrollment information. We calculated network breadth (the share of specialists included in a network) and the total number of in-network surgeons per 100,000 county population. Measures were stratified by specialty and geography and weighted by MA enrollment to reflect the average enrollee’s plan. Among 36,584 network-counties representing 20.9 million MA enrollees, the mean enrollee’s network included 57.6% surgical specialists. The average network had more in-network surgeons than required under network adequacy criteria. Plastic surgery networks were the narrowest, with an average breadth of 47.1%, while vascular, thoracic, and orthopaedic surgery networks exceeded 60%. Over 1 million MA enrollees lived in counties with zero in-network surgeons across all six specialties. Gaps were especially severe in rural and non-core counties, where enrollees often had access to fewer than one in-network surgical specialist.”

According to the news editors, the research concluded: “Medicare Advantage networks include over half of surgeons but may further limit access in areas where surgeons are already in limited supply.”

This research has been peer-reviewed.

For more information on this research see: Medicare Advantage Networks for Surgical Specialists. Journal of the American College of Surgeons, 2026. Journal of the American College of Surgeons can be contacted at: Lippincott Williams & Wilkins, Two Commerce Sq, 2001 Market St, Philadelphia, PA 19103, USA. (Elsevier - www.elsevier.com; Journal of the American College of Surgeons - http://www.journals.elsevier.com/journal-of-the-american-college-of-surgeons/)

Our news journalists report that additional information may be obtained by contacting Elyette Lugo, Dept. of Orthopaedic Surgery, Johns Hopkins University, Baltimore, MD. Additional authors for this research include Mark Meiselbach and Amit Jain.

The direct object identifier (DOI) for that additional information is: https://doi.org/10.1097/xcs.0000000000001864. This DOI is a link to an online electronic document that is either free or for purchase, and can be your direct source for a journal article and its citation.

Publisher contact information for the Journal of the American College of Surgeons is: Lippincott Williams & Wilkins, Two Commerce Sq, 2001 Market St, Philadelphia, PA 19103, USA.

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