The Best Care Is Collaborative

We are dedicated partners in your patient's retinal health.

The best treatments possible. The easiest ways to refer.

For Patients

Colorado Retina Associates provides comprehensive, compassionate retina care to patients across the Rocky Mountain region.

Colorado Retina Associates provides world-class retina care to patients across the Rocky Mountain region.

For Doctors

We're committed to collaborating with our referring community to ensure your patients receive comprehensive, unparalleled retinal care.

We're committed to collaborating with our referring community to ensure your patients receive comprehensive, unparalleled retinal care.

Refer Patients to Colorado Retina Associates

Please choose your preferred referral method below. Referrals will be processed within two days during normal business hours, Monday-Friday, 8:00am-4:00pm MST. For emergent referrals and patients who need to be seen by a CRA physician within 72 hours, call (303) 261-1600. We promise to keep you updated throughout each patient's care journey.

  • Online Form

    Fill out the Online referral form to submit an appointment request instantly.

    Submit a Referral

  • Email

    Email the referral form to [email protected], along with exam notes, imaging, demographics and a copy of the patient's insurance cards, if possible.

    Download Now

  • Fax

    Download our Referral Form, and fax it to (303) 261-1601, along with related exam notes, imaging, demographics and a copy of the patient's insurance cards, if possible.

    Download Now

  • Shared Referral Dashboard

    Our HIPAA secure referral dashboard allows you to quickly submit, track, and self-schedule referred patients before they leave your office.

    Get Started Login

Curbside Consult

In an effort to support our referring providers, Dr. Betty Zhang, CRA’s first ever retina optometrist, offers a same-day Curbside Consult service to triage diagnostic dilemmas and unique retinal care situations. To begin, text your question or concern to (720) 738-4744, including any supporting documentation.

Learn More

Colorado Retina Associates

As the premier retina practice of the Rocky Mountains, we strive to build collaborative relationships with referring providers, who trust us with improving their patients’ lives. No matter the level of urgency, we're committed to making the process as efficient and successful as possible.

15

Providers

7

Associated Surgery Centers

20K +

Surgeries Performed

83

Clinical Trials in 2022

Memberships and Affiliations

Provider Clinic Schedule

Choose a location or a provider to see availability across our practice.
Notes: "Out" may also mean the provider is in surgery. Please call for weekend avaibility.

Please select a location or physician
Monday, 7/22
Tuesday, 7/23
Wednesday, 7/24
Thursday, 7/25
Friday, 7/26
AM
Nancy J. Christmas, MD
Curtis L. Hagedorn, MD
Nancy J. Christmas, MD
Murtaza Adam, MD
Frank S. Siringo, MD, OD
PM
Curtis L. Hagedorn, MD
Betty Zhang, OD
Nancy J. Christmas, MD
Frank S. Siringo, MD, OD
Ashleigh L. Levison, MD
Murtaza Adam, MD
Andrew Zheng, MD
Scroll left and right to see the whole schedule

Request Referral Materials

To ease anxiety and ensure your patient is prepared for their first appointment at Colorado Retina, we suggest you provide them a copy of our educational print upon referral. We will mail you a referral package within 5 business days. To request, please fill out the form.

Submit Request

Research & Clinical Trials

In addition to having the latest imaging and diagnostic capabilities, we also feature an in-house clinical research program for your patients. Clinical trials have become an increasingly important option to provide the latest treatments in the hope of curing blinding diseases.

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Subspeciality Care

We are the only retina practice in Colorado providing specialized coverage in ocular oncology, uveitis, and inherited retinal disease (IRD). Our sub-specialists are the tertiary referral center for patients with complex auto-immune and infectious ocular conditions, intraocular tumors/cancer, and genetic disorders.

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“Do not hesitate – your eyes are too important not to obtain the best care.”
Karol
“I have always felt that my care was the epitome of patient-centered care.”
Darcy

Referring Doctor FAQs

We value the trust you’re placing in our team and hope we can make working with us even easier by answering some initial questions.

Learn More

  • After each visit, your office should be faxed a detailed copy of your patients’ most recent exam notes, provided by their Colorado Retina physician. If you do not receive notes, please email our Medical Records team at cramedicalrecords@retinacolorado.com to request a copy and update your contact information.

  • Colorado Retina offers a 24/7 triage call service to assist patients who are experiencing urgent retinal symptoms. To speak to a team member, call (303) 261-1600 and follow the prompts for urgent medical assistance. If prompted to leave a voicemail, please do, someone will call you back right away. If the triage deems the condition urgent, our on-call physician will immediately address.

  • Our financial counselors are here to provide all patients both the educational and emotional support needed to objectively weigh their financial options. From financial assistance to grant coverage and sliding scale payment programs, we curate plans to meet each patient's individual needs. Patients can email CRAFinancialCounselors@retinacolorado.com to schedule an appointment with an advisor.

    1. Masks in clinic are currently optional for both patients and our providers and staff.
    2. No children, and only one guest per patient.
    3. If the patient tested positive for COVID-19 they must:
    • Wait at least 7-days from onset of symptoms before your appointment.
    • Be 24-hours without a fever, and symptoms must be mostly resolved on day of appointment.
    • Wear a mask in our clinic if within 10 days from on-set of COVID symptoms.
    1. If the patient had a known COVID-19 exposure and is –
    • Unvaccinated, wait at least 7-days from exposure, and have no present COVID symptoms on day of appointment.
    • Vaccinated, no present COVID symptoms on day of appointment. Mask required to be worn within 7 days of exposure.

Our Locations

View All Locations

Welcome Dr. Frank Siringo to Colorado Retina

Dr. Siringo is an accomplished retina specialist known for his exemplary academic background, international eye care work, and research experience.

Dr. Siringo is now seeing patients at our locations in Lakewood and Cherry Creek. Get to know Dr. Siringo.

Welcome Dr. Siringo

We’re excited to welcome Dr. Frank Siringo to CRA! He is now seeing patients at our locations in Lakewood and Cherry Creek.
Get to know Dr. Siringo