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    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: 40

    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 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

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