Skip to main content

Health care

We provide affordable and personalized care

How can we help?

Helpful links

Financial

Accounts to help you save and pay for health care expenses

How can we help?

Helpful links

  • Resources

    Find contribution limits, savings tools, calculators and eligible expenses

  • Account support

    Find contact information and frequently asked questions

Tax season resources

Get ready for HSA tax season

If you used an HSA this year, the HSA Tax Center offers general information about contributions, eligible expenses and commonly used tax forms — all in one place.

Pharmacy

We make it easy to get medications you need, when and where you need them

How can we help?

Helpful links

  • Optum Rx

    For people with pharmacy insurance benefits through Optum Rx

  • Track orders

    Track your home delivery and specialty order

  • Pharmacy support

    Find contact information and answers to frequently asked questions

Mobile app

Optum Rx on the go

Request refills, track order status, manage billing information and much more.

Download on the App StoreGet it on Google Play
Carlo Buena, MD

Carlo Buena, MD

Optum Provider

Specialty

Internal Medicine

Languages

English

Seeing patients at

Patient Reviews

Patient review summary

Learn about our survey

5

4

3

2

1

4.6

184 reviews

  • Mar 31, 2026
    Verified Review

    he is caring and thorough

  • Mar 30, 2026
    Verified Review

    Dr. Buena is knowledgeable, professional and Kind.

  • Mar 29, 2026
    Verified Review

    Excellent doctor

  • Mar 27, 2026
    Verified Review

    He did a great job and actually seemed to care about me

  • Mar 25, 2026
    Verified Review

    Kindness and easy to understand. Willingness to help you when needed.

  • Mar 24, 2026
    Verified Review

    He is a very personable, caring and thorough doctor, always willing to listen and advise.

  • Mar 22, 2026
    Verified Review

    Caring, professional, prepared and knowledgeable

  • Mar 21, 2026
    Verified Review

    Very good doctor

  • Mar 20, 2026
    Verified Review

    He is very easy going and talks in a very friendly manner

  • Mar 20, 2026
    Verified Review

    He is a very caring likable doctor that provides information to me. He has an open communication attitude

  • Mar 20, 2026
    Verified Review

    He is a good doctor take time to talk to you whenever you have questions and he will answer you detail by detail and explain it to you.

  • Mar 14, 2026
    Verified Review

    The best Dr. Very cafing, profedsional, very detsiled explaining of whatever results of referred exams, & whatever quedtions asked pertsining my health . One of the BEST IN THE WEST.

  • Mar 13, 2026
    Verified Review

    He is very direct and easy for me to understand.

  • Mar 12, 2026
    Verified Review

    Dr. Buena is easy to talk to. He explains things that are easy to understand and helpful.

  • Mar 11, 2026
    Verified Review

    Knowledgeable, caring, listens to your questions, dependable and very courteous and likeable!

  • Mar 8, 2026
    Verified Review

    He listens well and plans what should be done next.

  • Mar 8, 2026
    Verified Review

    He listens to my concerns and advises me.

  • Mar 8, 2026
    Verified Review

    Very good doctor

  • Mar 7, 2026
    Verified Review

    I have been a patient of Dr. Buena for many years. If I had to say just ONE thing I like the most about him...I'd have to say the fact that he LISTENS to his patients, and will take as much time as needed to explain and answer questions I may have.

  • Mar 5, 2026
    Verified Review

    Always listens to my concerns and gives feedback

Page 1 of 10
  • Gender

    Male

    Board certifications

    American Board of Internal Medicine

    Licenses

    NV, 16720

    Employed or contracted

    Employed

    Network Name

    OptumCare Network of Nevada

    PCP ID

    UHC HMO & D-SNP ID - 00040006005, UHC PPO ID - 00040370321, Humana ID - 000408002S

    NPI

    1770857484

    Hospital affiliations

    Summerlin Hospital Medical Center