Specialized Infectious Disease & Wellness Care in Colorado

Infinity ID and Wellness offers advanced, evidence-based infectious disease care with a whole-person approach — blending clinical precision with long appointments, accessible care, and a commitment to your long-term health.

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What We Treat

Advanced, thoughtful care for complex infectious conditions — with a personalized, microbiome-conscious approach.

At Infinity ID and Wellness, we help adults facing infectious conditions that are often misunderstood, misdiagnosed, or mismanaged. Whether you’re recovering from surgery, battling a resistant infection, juggling multiple medication allergies, or seeking answers after months of symptoms — you’ll be seen, heard, and guided here.

Common Conditions Treated:

Skin & soft tissue infections
Bone infections & surgical site infections
Lung infections & pneumonia
Chronic sinusitis
Urinary tract infections (including complex anatomy)
HIV & STI management
C. Diff
H. pylori
Bloodstream infections
Infections in immunocompromised hosts

Specialty Areas:

OPAT (IV antibiotics at home)
Zoonotic & tick-borne illnesses (e.g., Bartonella, Rocky Mountain Spotted Fever)
Endocarditis
Fever of unknown origin
Travel medicine
Post-antibiotic dysbiosis

WHY PATIENT CHOOSE US

Infectious Disease Care — Reimagined for Real Life

At Infinity ID & Wellness, you’re not just another chart. You get time, answers, and a doctor who listens. With deep experience in complex infectious conditions, we offer truly personalized care that blends evidence-based medicine with a long-view on your health.

Our appointments are designed for thoroughness — because infectious disease deserves more than 10 minutes.

Every visit is with a double board-certified MD. No handoffs, no confusion — just expertise.

You’ll always know the cost, and you’ll never need to navigate a broken system to get care.

We treat the infection and support your body — with microbiome-informed guidance to protect long-term wellness.

Same or next-day availability for pressing concerns — because timing matters.

Fungal Infections

“I’ve learned that the key to uncovering complex infections is truly listening — asking the right questions and understanding each person’s story, not just their lab results.”

— Dr. Katrina Coulter, with a Mission

TESTIMONIAL

Trusted By Patients Across Colorado and beyond

“If you’re lucky enough to find Dr. Katrina Coulter, you’ve found the best! She is intelligent, professional, thoughtful in her decision-making and very patient-centered. She also possesses a certain kindness and compassion that invites in a level of trust that patients want to feel in their doctor.”

– R.R.

“Dr. Katrina Coulter, an Infectious Disease Specialist is a confident, kind, gracious, patient and cheerful person. would highly recommend Dr. Coulter for her expertise and wish her the very best.”

– R. C.

“Dr. Coulter is thorough and compassionate, and her team is professional, responsive, and well organized. “

– P.A.

“Dr. Katrina Coulter is absolutely amazing — kind, compassionate, and attentive, with a genuine ability to listen and help.”

– J.

These are just a few voices from the many we’ve helped. Your healing story could be next

Quick Credentials:

MEET

Meet the Physician Who’s Changing How Care Is Delivered

At Infinity ID & Wellness, you won’t find rushed visits or one-size-fits-all care.Instead, you’ll meet a double board-certified Infectious Disease physician who takes the time to understand your full story — so nothing gets missed.

Dr. Katrina Coulter brings over a decade of experience treating complex infections in high-acuity hospital settings, and now offers that same level of care in a boutique clinic setting here in Southern Colorado.

With a whole-person approach that integrates evidence-based medicine and microbiome health, Dr. Coulter delivers clear answers, long-term healing strategies, and highly personalized treatment plans — all with transparency, integrity, and compassion.

True healing begins with listening — it’s how we understand, connect, and truly care.

HOW IT WORKS

Getting Started Is Simple

1. Book Your Appointment

Choose a time that works for you — online or by phone. We offer same-day or next-day appointments when available.

2. Complete Intake Forms

You’ll receive secure digital forms to complete before your visit, so we can make the most of our time together.

3. Send Us Your Records (If Needed)

Once approved, you'll receive access to our secure Tebra portal to complete your intake forms and screening tools

4. Meet with Dr. Coulter

Receive a thorough evaluation with a board-certified Infectious Disease specialist. You’ll leave with a clear plan and full confidence in your care.

We take your health seriously — and your privacy too.

All forms, medical records, and communications are fully HIPAA-compliant and securely encrypted to keep your information safe and confidential.

FAQs

Frequently Asked Questions

What conditions do you treat?

We specialize in diagnosing and managing a wide range of complex infectious diseases, including chronic and recurrent infections, antibiotic-resistant conditions, and tick-borne illnesses. [See full list on our Services page →]

Do you accept insurance?

Infinity ID & Wellness is a direct specialty care clinic, which means we do not bill or contract with insurance. This allows Dr. Coulter to spend more time with each patient, focus on individualized care, and avoid the restrictions that often come with insurance-based medicine. Payment is made directly at the time of service, and transparent pricing is provided before your visit. See full list on our Services page →

Can I still use my insurance for labs or medications?

Yes. While visits are paid directly to the clinic, you can still use your insurance for labs, imaging, and prescriptions at outside facilities that accept your coverage. We’ll provide any necessary orders or documentation so you can take advantage of your benefits. See full list on our Services page →

Do you offer telehealth?

Yes. Telehealth visits are available for patients located in Colorado when appropriate. Many follow-up appointments, lab reviews, and consults can be done virtually for your convenience. See full list on our Services page →

How do I prepare for my first appointment?

After scheduling, you’ll receive a secure link to complete your intake forms and health history online. Please gather any recent lab results, imaging, or medical records that may be relevant. During your visit, plan to discuss your goals, symptoms, and lifestyle in depth — At Infinity ID we take time to understand the full picture of your health. See full list on our Services page →

Do I need a referral to book an appointment?

No referral is needed. You can book directly whether you’re a patient seeking an infectious disease consultation, a chronic illness review, or wellness-focused microbiome care. See full list on our Services page →

What’s the cost of an appointment?

Transparent pricing is one of the benefits of direct specialty care.

New patient consultation: $ 500 (typically 60 minutes)
Follow-up visits: 15 minutes $125, 30 minutes $250, 45 minutes $375
Packages available depending on the condition being treated and frequency of follow up visits and laboratory monitoring needed. This will be discussed at your initial new patient consultation

How soon can I be seen?

Most patients are scheduled within one to two weeks, and urgent cases may be accommodated sooner when possible. Because visits are unhurried and personalized, appointment availability is limited — we encourage booking early when your schedule allows.

Still have questions?

We’re here to help.

START YOUR JOURNEY

Take the First Step Toward Better Health

If you’re struggling to get answers or feel like you’ve been dismissed — it’s time for a new approach. At Infinity ID and Wellness, we provide expert, personalized infectious disease care in a direct-pay model that puts you first.