Holistica Integrative Care

Business Details

Your Trusted Partner for Holistic Health Solutions in Boulder

Holistica Integrative Care is a premier integrative medical clinic in Boulder, Colorado, dedicated to uncovering the root causes of illness and promoting holistic healing. Our team of naturopathic doctors and integrative practitioners combines natural medicine, functional diagnostics, and personalized treatment plans to address chronic conditions such as Lyme disease, mold toxicity, hormone imbalances, and cognitive decline. With over 20 years of combined experience, we prioritize patient education, compassionate care, and evidence-based therapies, including IV nutrient therapy, botanical medicine, and detoxification protocols.

We collaborate closely with patients to develop sustainable health strategies, emphasizing prevention and whole-person wellness. Our commitment to excellence is reflected in our patient-centric approach, which integrates conventional and alternative modalities to optimize outcomes. We strive to empower individuals through transparent communication, tailored support, and a deep understanding of complex chronic illnesses. Though closing in 2025, our legacy of dedicated care remains rooted in Boulder's holistic health community.

Services

IV Nutrient Therapy Functional Medicine Detoxification Hormone Replacement Lyme Disease Treatment Mold Toxicity Care Botanical Medicine Cranial Sacral Therapy Low Dose Immunotherapy Specialty Lab Testing

Highlights and features

We specialize in uncovering root causes of chronic illness through functional diagnostics.
Our team combines naturopathic expertise with evidence-based integrative therapies.
Personalized treatment plans address hormone imbalances, Lyme disease, and mold toxicity.
IV nutrient therapy delivers targeted vitamins and minerals for maximum absorption.
Comprehensive detoxification protocols support long-term wellness and toxin elimination.

What people say

Thorough explanations Compassionate care Effective treatment Personalized approach Knowledgeable staff

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Services

IV Nutrient Therapy

IV Nutrient Therapy delivers vitamins, minerals, and antioxidants directly into the bloodstream for 100% absorption. This treatment supports immune function, detoxification, and energy production by bypassing digestive limitations. Patients benefit from accelerated healing for conditions like chronic fatigue, Lyme disease, and mold toxicity through customized IV formulations.

Functional Medicine

Functional Medicine identifies underlying causes of chronic illness through comprehensive diagnostics and personalized treatment plans. We address hormonal imbalances, gut health, and environmental toxins using natural interventions. This approach empowers patients to achieve long-term wellness through lifestyle modifications and targeted therapies tailored to individual biochemistry.

Detoxification Programs

Our Detoxification Programs remove accumulated toxins using nutritional support, sauna therapy, and targeted supplements. These protocols address heavy metal burden, mold toxicity, and environmental pollutants that contribute to chronic disease. Patients receive personalized guidance to optimize liver function and cellular detox pathways for improved energy and immune resilience.

Hormone Replacement

Bio-Identical Hormone Replacement Therapy restores hormonal balance using plant-derived hormones identical to human physiology. We treat symptoms of menopause, andropause, and thyroid dysfunction through precise dosing monitored by regular testing. This therapy improves energy levels, cognitive function, and metabolic health while minimizing traditional hormone therapy risks.

Lyme Disease Treatment

Our Lyme Disease Treatment combines antimicrobial herbs, immune support, and detoxification to address chronic infections. We utilize advanced diagnostics to identify co-infections and tailor protocols for individual symptom profiles. Patients receive comprehensive care addressing neurological, musculoskeletal, and systemic manifestations of Lyme disease through integrative naturopathic approaches.

People

Dr. Kelsey Asplin

Naturopathic Doctor

Dr. Kelsey specializes in gut health and neuroendocrine balancing, helping high-performing professionals optimize wellness through personalized naturopathic care and patient education.

Dr. Michael Hummel

Naturopathic Oncologist

Dr. Michael focuses on integrative oncology and complex chronic illness management, combining naturopathic principles with Mederi Care for cancer patients.

Isabella Allegrezza

Family Nurse Practitioner

Isabella provides holistic primary care with expertise in women's health and bio-identical hormone therapy, emphasizing mind-body-spirit integration.

Dr. Ivy Moreno

Naturopathic Doctor

Dr. Ivy offers naturopathic primary care and cranio-sacral therapy, specializing in homeopathic treatments for chronic health conditions.

Cassie Petro

Certified Nutrition Specialist

Cassie specializes in holistic nutrition, helping patients develop healthy relationships with food through personalized dietary strategies and functional nutrition.

Questions

What happens to my appointments after September 26, 2025?

All appointments after this date will be canceled. Please contact our recommended referral providers for continued care.

Can I get a refund for unused services?

Yes, request refunds for deposits, programs, or memberships before September 26, 2025 for prorated amounts.

How do I access my medical records?

Will lab results still be available after closure?

Pending results will be accessible through your patient portal until October 31, 2025 for download.

Can I still purchase supplements?

Yes, enjoy 40% off all products until September 26, with shipping options available.

What if I need integrative oncology support?

Dr. Michael Hummel continues offering integrative cancer consultations through referral providers.

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Reviews (7)

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Laura Bukowski

May 25, 2022 Report

I chose to work with Dr. Mary because of her knowledge of Lyme Disease and approach of treating the whole human. My previous doctor's visits had been short and less than helpful. none had even tested for or mentioned the possibility Lyme and its co-infections. My first visit with Dr. Mary was almost 2 hours long. She looked me in the eyes, asked questions about my mental, physical, emotional health and listened.

I have never felt so cared for by a medical professional. She's an incredible problem solver and looks at all aspects of my health, not just zeroing in on symptoms. I also felt like I was apart of the process because she explained things so well and I had choices in treatments. I am on a journey of healing from Lyme and its co-infections and learning so much more about how to live a healthy and happy lifestyle. I feel so lucky to have Dr. Mary in my corner.

Miriam Deal

Dec 29, 2021 Report

Dr. Shackleton was by far the best doctor I've had in years. She actually sat down and LISTENED to everything that was going on in my body (which I've had multiple doctors and none ever did this). I left the same day with a prescription and in days my body felt the best it's ever have. I'm 24 and haven't felt normal since middle school so this was quite the experience for me. I gave up in doctors, but she definitely put the faith back in me. I finally have my life back now, thank you!

Nicole Duke

Oct 19, 2021 Report

I would give Holistica and their staff 6 stars if i could. I've been battling with autoimmune disease for years and haven't been able to find the detailed care I really needed until met with Jessica Muniz NP. No one has been able to help me until now. I am feeling so much better and feel like I have my life back again. For anyone who knows this feeling, you know this is everything. Jessica is a Godsend. The staff such as Brianne and Devon in IV room are delightful and I always feel so at home and taken care of. I could not recommend this clinic and Jessica more.

Kristina Boudreau

Oct 14, 2021 Report

Dr. Mary Shackelton is my guide to understanding my body and how to feel better physically and emotionally. She is an attentive listener and is both extremely knowledgeable and effective. I am deeply grateful for her work.

Joel Meisinger

Oct 05, 2021 Report

Dr. Shackelton and her crew are great! I've had some odd health issues the past few years and have a past of being in some very poor environments. Dr. Shack digs deeper to get to the core of issues and not just medicate. Highly recommended!

Paige E.

Oct 05, 2021 Report

Have been going to Holistica for some supplemental treatments including ear insufflation and sauna. They usually run about half an hr behind for the ears, and I usually work this half hour delay into my schedule but now they cancelled my appointment day of because they don't have a separate room for me? They provided no alternative options for times to come in. Once during a sauna they provided no towels.

I always feel bad for the front desk girl who has to run the desk while doing patient procedural set ups, it makes it feel chaotic and stressful. Overall, disorganized feel and I'm tired of the mess ups. Boulder Holistic is much more on top of it.

Caren Pilz

Sep 27, 2021 Report

Dr Mary helped me get my life back. She combined testing and attentive listening to recommend supplement and diet changes that has made a world of difference. I sleep better, I have more energy and I get less colds. I can't thank her enough.