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

Henry Siem, MD

★★★★★ ★★★★★ 4.4 (784 ratings)
Optum Provider

Specialty

Family Medicine

Languages

English,Spanish

Seeing patients at

Patient Reviews

Patient review summary

Learn about our survey

5

4

3

2

1

4.4

★★★★★ ★★★★★

116 reviews

  • ★★★★★ ★★★★★ Feb 21, 2026
    Verified Review

    I liked him. He took time to explain his recommendations.

  • ★★★★★ ★★★★★ Feb 21, 2026
    Verified Review

    very efficient and thorough, explored all the alternatives for my care

  • ★★★★★ ★★★★★ Feb 20, 2026
    Verified Review

    Impersonal/impatient

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

    Very professional and caring

  • ★★★★★ ★★★★★ Feb 13, 2026
    Verified Review

    A very good doctot

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

    Dr. Siem is thorough in providing the care needed.

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

    He seemed uninformed about a sign of diabetes that I mentioned because i had seen him for a sinus infection and one of my big toes had turned black, he said he hadnt heard that and said maybe I should be the doctor and asked who I heard it from and I told him that Dr. Dawn Roberts was my pcp for many years and had mentioned that my toe nails turning black or yellow may be a sign of diabetes as at that time she had said I was prediabetic. He also called in medication twice that was related to prednisone even after I told him I was highly allergic. The pharmacist said she didnt feel comfortable filling either one.

  • ★★★★★ ★★★★★ Feb 10, 2026
    Verified Review

    He's thorough. He's knowledgeable and is great about sharing that knowledge and latest research with his patients in an understandable way. I don't feel like he's rushed when I see him; he takes time to answer all my questions. I had a question about self-paying for a drug, and he took the time to look up the cost online, so I could make a decision about it.

  • ★★★★★ ★★★★★ Feb 7, 2026
    Verified Review

    Dr Siem, during my appointment, advised that I was out of time when I requested he examine a symptom I was experiencing. Due to this, I was sent home with an inadequate treatment plan and subsequently hospitalized 2 days after my appointment.

  • ★★★★★ ★★★★★ Feb 5, 2026
    Verified Review

    Doesn't have time to discuss alternate treatment or issues that could contribute to patient conditions.

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

    Easy to talk to, straight talk answers.

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

    Dr. Siem is extremely knowledgeable and caring. He is a good listener and is thorough.

  • ★★★★★ ★★★★★ Jan 27, 2026
    Verified Review

    I have already recommended him to my friends. He is knowledgeable, caring, and considerate. He is great!

  • ★★★★★ ★★★★★ Jan 23, 2026
    Verified Review

    If you want fast and professional service then he is your doctor.

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

    He takes time to ask questions. He knows what is in my file.

  • ★★★★★ ★★★★★ Jan 16, 2026
    Verified Review

    Good thorough compassionate care

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

    He's very thourough,listens,very competent.

  • ★★★★★ ★★★★★ Jan 11, 2026
    Verified Review

    Dr Siem is very through

  • ★★★★★ ★★★★★ Jan 11, 2026
    Verified Review

    Very knowledgeable; provides explanations; discusses options.

  • ★★★★★ ★★★★★ Jan 2, 2026
    Verified Review

    Dr Siem, is very knowledgeable and up to date with my medical conditions.

Page 1 of 6
  • About Henry Siem, MD

    Dr. Siem has worked with a variety of underserved communities, including providing healthcare for homeless populations. He also has extensive experience volunteering for organizations that aim to reduce healthcare disparities. Prior to pursuing his medical career, he worked worked as computer programmer.

    Gender

    Male

    Board certifications

    American Board of Family Medicine

    Licenses

    CO, DR0068922

    Employed or contracted

    Employed

    Network Name

    OptumCare Network of Colorado

    NPI

    1457797995