Marathon Health, Boulder CO - Folsom St
Medical Center
2880 Folsom St #104, Boulder, CO 80304
Search snapshot
Marathon Health, Boulder CO - Folsom St is a TRT clinic profile in Boulder, CO. Use the tracked call, website, and directions buttons for contact details, then compare services, review signal, and treatment considerations before booking.
TRT Index is an independent directory and comparison resource. Listings are informational and do not imply a medical endorsement.
Own this listing?
Clinic owners can request corrections or enhanced profile review. Claiming or updating a listing does not buy ranking placement.
Quick facts
- Location
- Boulder, CO
- Services listed
- TRT
- Review signal
- 4.8 from 4 public review references
TRT Index is an independent directory and comparison resource. Listings are informational and do not imply a medical endorsement.
About this clinic
Marathon Health is a primary care clinic providing preventive care, sick and urgent care, and chronic disease management with extended appointment times and same- or next-day availability.
- Same- or next-day appointments for immediate care
- Onsite lab services including blood draws and metabolic panels
- Extended visit times averaging 45 minutes
Fits: Employees and families seeking comprehensive primary care with minimal wait times.
Summary drafted from public website, chain, or directory listing information depending on available sources.
Services offered
- TRT
- Testosterone replacement therapy - injections, creams, or pellets for clinically low testosterone.
What patients are saying
- Laura Thompson11 months ago
Dr. Theiss is wonderful. I recently switched jobs and needed to find a new clinic and PCP. Dr. Theiss was kind, friendly, engaging, and communicated really well during my initial visit and physical/blood panel. She called a few days later to talk through my results and answer any questions I had. I am very grateful to found this clinic and Dr. Theiss. Highly recommend!
- Zephyr Rae6 months ago
Best doctor visit I have ever had. Also if you are looking for a parimenopause doc this is the one!
- Regan French2 years ago
I had such a positive experience at this Everside Health location. I was having a rough day and everyone was super patient and understanding, I highly recommend.
- Tiff B8 years ago
Reviews via Google Maps. Content and opinions belong to their original authors.
Review and rating context
4.8 average rating from 4 public review references where available.
TRT Index does not collect first-party patient reviews and does not verify individual review content. Use public review patterns alongside provider credentials, lab policies, pricing, and follow-up expectations when comparing clinics.
How to compare this clinic
Before choosing a TRT provider, compare
- Who reviews baseline and follow-up lab work.
- Visit cadence, refill rules, and ongoing monitoring.
- Total monthly cost, not just the first appointment.
- Whether listed services match your treatment goals.
- Review patterns around scheduling, follow-up, and billing.
Clinic profile
This profile summarizes available clinic information, services, review signals, and comparison points in one place. Use the contact buttons above to call, visit the clinic website, or open directions.
Review checklist for Marathon Health, Boulder CO - Folsom St
Use this checklist when reading public reviews and comparing TRT clinics. Public reviews are helpful context, but they should not be treated as proof of clinical quality.
- Look for recent patterns in scheduling, follow-up, communication, and billing.
- Compare whether reviewers mention lab work, monitoring, and provider access.
- Weigh repeated themes more heavily than one-off positive or negative reviews.
- Use public review context alongside the questions and lab-test guides above.
Does TRT Index publish patient reviews for this clinic?
No. TRT Index does not collect first-party patient reviews and does not verify individual review content. Marathon Health, Boulder CO - Folsom St appears as an independent directory profile, not a medical endorsement. Where available, public review signals are shown only for context.
How should I read reviews for Marathon Health, Boulder CO - Folsom St?
Treat public reviews as context, not proof of clinical quality. Look for repeated themes around scheduling, communication, billing, lab work, and follow-up care. Use those patterns alongside the comparison checklist and clinic contact options on this page.
Where do the ratings shown for Marathon Health, Boulder CO - Folsom St come from?
Ratings and review signals come from public sources where available, such as third-party listings. TRT Index summarizes those signals for comparison and does not collect first-party patient reviews.
Online alternative
Compare telehealth TRT options
If local appointment availability, price clarity, or follow-up structure is unclear, compare online TRT providers before choosing a clinic.
Other TRT clinic cities in Colorado
If Marathon Health, Boulder CO - Folsom St is not the right fit, compare nearby city pages with more local clinic options.
Other clinics in Boulder
See all →- GM

Gameday Men's Health Boulder, CO
Gameday Men’s Health5.0 · 223 reviewsDoctor · Boulder, CO
TRTView profile for tracked contact optionsPhone on profileWebsite on profileDirections on profile - BH

Boulder Holistic Functional Medicine
4.9 · 115 reviewsMedical Clinic · Boulder, CO
TRTView profile for tracked contact optionsPhone on profileWebsite on profileDirections on profile - NI

NatureMed Integrative Medicine
4.6 · 62 reviewsServices · Boulder, CO
TRTView profile for tracked contact optionsPhone on profileWebsite on profileDirections on profile - BL

Boulder Longevity Institute, LLC
4.1 · 13 reviewsMedical Clinic · Boulder, CO
WellnessView profile for tracked contact optionsPhone on profileWebsite on profileDirections on profile
