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Federal Medical Center
Devens FMC is an administrative security facility in Ayer, Massachusetts, housing approximately 1,070 people. Below you'll find insider tips, programs, visiting hours, and preparation resources.
Last verified: January 24, 2026
Administrative security federal medical center with adjacent minimum-security satellite camp. Email: DEV-ExecAssistant-S@bop.gov. Fax: 978-796-1118. County: Middlesex. Total complex pop: 1,158.
See the full commissary list for Devens FMC below, including available items and pricing.
Live as the CEO of your life at Devens FMC by posting journal entries, release plans, and book reports at PrisonProfessors.org—so others can hold you accountable while you build skills and earn freedom through merit.
Devens FMC is a Federal Medical Center. FMCs provide specialized medical and mental health care for people with significant health needs. These facilities offer treatment programs alongside standard correctional programming.
Our team of experienced advisors can help you prepare for your journey, make the most of your time, and set yourself up for a successful return.
Note: Visiting schedules may vary. Contact the facility directly for the most current visiting hours and procedures. For a complete breakdown of visitation rules, dress code, and how to get approved, visit our Visitation Guide.
How Long Will You Actually Serve?
Federal sentences are not always served in full. Good time credit, the First Step Act, and RDAP can significantly reduce your time served.
42 PATTON ROAD, AYER, MA 01432
Ayer, Massachusetts 01432
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Estimates via OpenStreetMap. Actual travel time may vary.
Security Notice
All phone calls are recorded. All emails are saved. Mail can be read by staff.