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Mark Day, DO

Mark Day, DO

★★★★★ ★★★★★ 4.6 (783 ratings)
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

★★★★★ ★★★★★

92 reviews

  • ★★★★★ ★★★★★ Feb 22, 2026
    Verified Review

    He is very good and friendly. I believe he has too many patients in one day to really talk to me.

  • ★★★★★ ★★★★★ Feb 22, 2026
    Verified Review

    We’ve been going to Doctor Day for a long time and he’s a very good doctor. Answer a lot of questions and caring for us. I definitely would recommend them.

  • ★★★★★ ★★★★★ Feb 17, 2026
    Verified Review

    Dr. Day He listen to me and explains everything to me. I am blessed to find a caring doctor.

  • ★★★★★ ★★★★★ Feb 15, 2026
    Verified Review

    I thought that Dr Day diagnosed my problems as best he could, This was only one of my first visits with him.

  • ★★★★★ ★★★★★ Feb 12, 2026
    Verified Review

    Dr Day is always extremely patient, understanding, kind and helpful with all my medical requests.

  • ★★★★★ ★★★★★ Feb 12, 2026
    Verified Review

    Dr. Day is an excellent provider.

  • ★★★★★ ★★★★★ Feb 9, 2026
    Verified Review

    He is thorough and listens and always takes concerns seriously and follows up

  • ★★★★★ ★★★★★ Feb 4, 2026
    Verified Review

    Dr. Day is wonderful. He is very personable, knowledgeable, and professional.

  • ★★★★★ ★★★★★ Feb 3, 2026
    Verified Review

    He's been my primary for a long time.

  • ★★★★★ ★★★★★ Jan 30, 2026
    Verified Review

    He made me feel he really cares about his patients. He asks the right questions

  • ★★★★★ ★★★★★ Jan 26, 2026
    Verified Review

    😃

  • ★★★★★ ★★★★★ Jan 25, 2026
    Verified Review

    He listens ,answers all my questions, has a calm bedside manner, pleasant and professional.

  • ★★★★★ ★★★★★ Jan 24, 2026
    Verified Review

    Very compassionate doctor and take time to listen to you.

  • ★★★★★ ★★★★★ Jan 22, 2026
    Verified Review

    Dr Day has been my doctor for many years now. If he wasn't caring and compassionate and helpful and professional I would have moved on years ago

  • ★★★★★ ★★★★★ Jan 22, 2026
    Verified Review

    Great

  • ★★★★★ ★★★★★ Jan 21, 2026
    Verified Review

    Been my doc for about 25 years.

  • ★★★★★ ★★★★★ Jan 20, 2026
    Verified Review

    Spent enough time and explained test results so I could understand them. Answered all questions

  • ★★★★★ ★★★★★ Jan 19, 2026
    Verified Review

    I am very pleased with Dr. Mark Day, for his knowledge and wisdom as my primary care physician, for his kind and gentle bedside manner, and for his utmost professionalism as a doctor. Thank you.

  • ★★★★★ ★★★★★ Jan 18, 2026
    Verified Review

    Knows what he is doing pertaining to my health.

  • ★★★★★ ★★★★★ Jan 15, 2026
    Verified Review

    Dr. Day spent an amazing amount of time talking with me, and explaining what I need to know moving forward. He is extremely knowledgeable and had sources and information to share.

Page 1 of 5
  • Gender

    Male

    Board certifications

    American Osteopathic Board of Family Physicians

    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