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    Dr. Rex L. Mahnensmith, MD


    • (203) 756-8021

    Dr. Mahnensmith's Overview

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

    Dr. Mahnensmith's Experience

    Years in Practice: 39

    Dr. Mahnensmith's Specialties


    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
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    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 Managed Choice POS Open Access
    • Aetna Signature Administrators PPO
    • Anthem CT Pathway X Enhanced Ind HMO
    • Emblem HIP Select PPO
    • Emblem PPO GHI
    • Harvard Pilgrim HMO
    • Harvard Pilgrim PPO
    • HealthyCT
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    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

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