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    Rex L. Mahnensmith, MD

    Rex L. Mahnensmith, MD

    Internal Medicine - Geriatrics, Internal Medicine, Nephrology, Diabetes

    Dr. Mahnensmith's Overview

    Dr. Mahnensmith graduated from the Yale University School of Medicine in 1977. He works in Waterbury, CT and specializes in Internal Medicine - Geriatrics, Internal Medicine, Nephrology and Diabetes. Dr. Mahnensmith is affiliated with Saint Marys Hospital and Waterbury Hospital.

    Dr. Mahnensmith's Experience

    Years in Practice: 40

    Dr. Mahnensmith's Specialties

    Internal Medicine - Geriatrics, Internal Medicine, Nephrology, Diabetes

    Dr. Mahnensmith's Education & Training

    Medical School: Yale University School of Medicine; Graduated 1977

    Dr. Mahnensmith's Rating

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    Overall Rating


    • Explains conditions & treatments
    • Takes time to answer my questions
    • Provides follow-up as needed
    • View All Ratings

    Dr. Mahnensmith's Accepted Insurance

    Please verify insurance information directly with your doctor's office as it may change frequently.

    • Aetna Choice POS II
    • Aetna CT AWH MC OA w/Pediatric Dental
    • Aetna Managed Choice POS Open Access
    • Aetna Signature Administrators PPO
    • Anthem CT HMO BlueCare
    • Anthem CT Pathway X Enhanced Ind HMO
    • Anthem Pathway X Ind PPO Direct Access CT
    • Anthem PPO Century Preferred CT
    • BCBS Blue Card PPO
    • BCBS MA Blue Care Elect PPO
    • View More

    Dr. Mahnensmith's Office Information & Appointments

    Office Locations

    Staywell Health Center

    80 Phoenix Ave Ste 303
    Waterbury, CT 06702
    (203) 756-8021


    Office Hours and Information

    Fax: (203) 465-5222

    Practice Website: Not Available

    Accepting New Patients: Yes

    Medicare Accepted: Yes

    Medicaid Accepted: Yes

    Monday 8:00 AM - 4:30 PM
    Tuesday 8:00 AM - 4:30 PM
    Wednesday 8:00 AM - 4:30 PM
    Thursday 8:00 AM - 4:30 PM
    Friday 8:00 AM - 4:30 PM
    Saturday Closed
    Sunday Closed

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    Dr. Mahnensmith's Hospital Affiliations

    Office Locations