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
Sarena Toellner, MD

Sarena Toellner, MD

Optum Provider

Specialty

Endocrinology Diabetes & Metabolism

Languages

English

Phone Number

1-425-339-5431

Fax Number

1-425-257-1423

Seeing patients at

Patient Reviews

Patient review summary

Learn about our survey

5

4

3

2

1

4.7

18 reviews

    • Reviewed on May 15, 2026
    • Verified Review

    Very knowledgeable, compassionate, and welcomed my daughter being present as well.

    • Reviewed on Apr 18, 2026
    • Verified Review

    She was very pleasant and showed she cared

    • Reviewed on Apr 13, 2026
    • Verified Review

    Doctor seemed somewhat nervous (kept repeating things) and inexperienced.

    • Reviewed on Apr 8, 2026
    • Verified Review

    She was on top of my situation.

    • Reviewed on Mar 5, 2026
    • Verified Review

    She was very knowledgeable about my history. She had done her homework

    • Reviewed on Feb 21, 2026
    • Verified Review

    She new my history

    • Reviewed on Feb 19, 2026
    • Verified Review

    She knew nothing about me when she entered the room.

    • Reviewed on Feb 12, 2026
    • Verified Review

    Still getting to kniw her. Seems nice

    • Reviewed on Jan 24, 2026
    • Verified Review

    The building and parking are somewhat confusing. Not obvious where to park.

    • Reviewed on Jan 24, 2026
    • Verified Review

    Clinician seemed very suspect of my symptoms, almost dismissive and her after care notes included confounding variable and narrative that were not accurate. Very defensive about discussing treatment plan options and timing.

    • Reviewed on Jan 24, 2026
    • Verified Review

    Good

    • Reviewed on Jan 9, 2026
    • Verified Review

    Dr Toellner took time to review my chart before engaging with me. She was informed/professional.

    • Reviewed on Dec 24, 2025
    • Verified Review

    For my first visit with her and not knowing me and what I just went thru, she was very attentive and pro active with my continuing care. She ordered test that I requested. She and I are creating a plan for me. I was impressed with her.

    • Reviewed on Dec 8, 2025
    • Verified Review

    She seemed rushed and overwhelmed. She asked me why I was there. She didn't realize that I was a former quiet of doctor naomia gutchew, she's not a really good listener.And maybe because she's fairly new and I hope that I can develop a report with her, but right now I left just uncertain of what the future will be with her

    • Reviewed on Dec 4, 2025
    • Verified Review

    Addressed this in last comment.

    • Reviewed on Dec 4, 2025
    • Verified Review

    Absolutely on top of my health care and meeting health care needs.

    • Reviewed on Nov 7, 2025
    • Verified Review

    Awsome

    • Reviewed on Nov 3, 2025
    • Verified Review

    Good

  • About Sarena Toellner, MD

    I value hearing each patient's story and what brought them in. Educating them about their condition is crucial, especially when providing care options. My care plans are guided by patient preference and shared decision-making after sharing knowledge and recommendations. I care for all types of diabetes including cases of metabolic and lipid disorders, and obesity. I provide transgender care and treat thyroid and gonadal diseases, adrenal, pituitary and parathyroid disorders, osteoporosis, menopause, and hyperandrogenism and hirsutism.

    Philosophy of care

    I would like my patients to see me as someone who bends over backwards for them. Not only for the specific medical condition they are seeing me for, but for their overall well-being.

    Gender

    Female

    Board certifications

    American Board of Internal Medicine in Endocrinology, Diabetes and Metabolism

    Employed or contracted

    Employed

    Network Name

    Optum Care Washington

    NPI

    1346505443

  • Medical School

    • Medical Unviversity of the Americas

      Devens, MA

    Residency

    • West Suburban Hospital Medical Center