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Mark Day, DO

Mark Day, DO

Optum Provider

Specialty

Family Medicine

Languages

English

Seeing patients at

Patient Reviews

Patient review summary

Learn about our survey

5

4

3

2

1

4.6

148 reviews

    • Reviewed on Jun 25, 2026
    • Verified Review

    This man is an incredible talent in our community of medical providers across the valley He is stellar!

    • Reviewed on Jun 24, 2026
    • Verified Review

    He answered all my questions

    • Reviewed on Jun 23, 2026
    • Verified Review

    Friendly, knowledgeable, provides great advice..

    • Reviewed on Jun 19, 2026
    • Verified Review

    Very knowledgeable and caring

    • Reviewed on Jun 19, 2026
    • Verified Review

    He is always up to date with every aspect of my health.

    • Reviewed on Jun 18, 2026
    • Verified Review

    Dr. Day is very concerned about our well-being and he's never in a rush. But would like more time with him.

    • Reviewed on Jun 17, 2026
    • Verified Review

    He seems nice.

    • Reviewed on Jun 16, 2026
    • Verified Review

    Very good

    • Reviewed on Jun 13, 2026
    • Verified Review

    He explains everything too you and you leave knowing all that you need to know.

    • Reviewed on Jun 12, 2026
    • Verified Review

    9 is almost perfects.

    • Reviewed on Jun 11, 2026
    • Verified Review

    Best doctor I have had in my lifetime.

    • Reviewed on Jun 10, 2026
    • Verified Review

    He is a great listener and has a good understanding of my care needs

    • Reviewed on Jun 10, 2026
    • Verified Review

    Very good.

    • Reviewed on Jun 9, 2026
    • Verified Review

    He was kind, thorough, knowledgeable and helpful!

    • Reviewed on May 30, 2026
    • Verified Review

    Great PCP

    • Reviewed on May 30, 2026
    • Verified Review

    DR. Day is always very helpful, understanding, patient & knowledgeable.

    • Reviewed on May 27, 2026
    • Verified Review

    He is informative and compassionate. He explains, helps and cares

    • Reviewed on May 22, 2026
    • Verified Review

    He is personable and interested in my needs as a patient.

    • Reviewed on May 22, 2026
    • Verified Review

    He has been my doctor for many years and has taken great care of me. He has always been professional, direct, and always listens. Since 1998, I have not had one complaint about his care. He’s an excellent doctor.

    • Reviewed on May 20, 2026
    • Verified Review

    he is very caring doctor and give me answers to all the question i need

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  • About Mark Day, DO

    Mark Day, DO, is a family medicine physician who cares for patients of all ages. His clinical interests include chronic disease management, diabetes care, geriatric health, men's and women's health, and mental health. Dr. Day completed his family medicine training through Broadlawns Medical Center and the University of Iowa.

    Philosophy of care

    Dr. Day believes great healthcare means understanding the whole person, not just their symptoms. He takes time to listen, build trusting relationships, and partner with patients on their health goals. His approach is rooted in compassion, respect, and personalized care tailored to each patient's unique needs.

    Gender

    Male

    Board certifications

    American Board of Family Medicine

    Licenses

    NV, 656

    Employed or contracted

    Employed

    Network Name

    OptumCare Network of Nevada

    PCP ID

    UHC HMO & D-SNP ID - 00010011423, UHC PPO ID - 00010671426, Humana ID - 000408000A

    NPI

    1164436994

    Hospital affiliations

    MountainView Hospital