Holistica Integrative Care Is Closing

It is with heavy hearts that we share that Holistica Integrative Care will be closing on September 26, 2025. Despite our best efforts, the expense of maintaining the clinic in Boulder has simply become unsustainable. This has been a very difficult decision, and we grieve the need to bring this chapter to a close.

Our priority now is to ensure you continue receiving the care and support you need. Below you will find answers to common questions, referral options, and important next steps.

Referral Options

We are glad to recommend trusted providers in the community for your ongoing care:

  • Boulder Natural Health
    bouldernaturalhealth.com
    350 Broadway, Suite 200, Boulder, CO 80305 | (303) 960-3920

  • Naturopathic Women’s Wellness
    naturopathicwomenswellness.com
    1295 Yellow Pine Ave, Boulder, CO 80304 | (303) 545-2021

  • Matrix Wellness
    matrixwellness.com
    737 29th St, Suite 300, Boulder, CO 80303 | (303) 733-7455

  • Rocky Mountain Regenerative Medicine (IV Therapy)
    rmrmco.com
    720 Pearl St, Suite 1B, Boulder, CO 80302 | (720) 739-1616

  • Holistic Therapies (IV Therapy)
    holistictherapies.us
    1301 Bergen Parkway, Unit C, Evergreen, CO 80439 | (303) 679-3402

Patient FAQ

What happens to my appointments?
All upcoming appointments after September 26 will be canceled. Please connect with one of the referral providers above for continued care.

What if I have a deposit or credit on my account?
You may request a refund before September 26, 2025. Refunds may no longer be possible after that date.

What if I am in a program?
You may request a prorated refund for the unused portion of your program. Refunds will be calculated as:

Total program amount paid – value of services and products already rendered = refund amount

Services/products already rendered may include:

  • Products provided (such as LDI vials)

  • Treatments received

  • Messaging and support from the medical staff

  • Appointment time(s) with your provider

What about memberships?
All memberships will be automatically canceled by September 26.

Can I still purchase supplements and products?
Yes! We are offering a close-out sale of all products at 40% off until September 26, or while supplies last. Supplements can be picked up in-office or shipped to you (shipping fees apply). The 40% discount also applies to supplements ordered through Emerson and shipped directly to your home.

What if I want my medical records?
You may request a copy of your records or have them sent directly to another provider. Please contact us before September 26, 2025 to make arrangements.

What happens if I have labs pending?
If results come in after September 26, they will be uploaded to your Holistica portal, which will remain active through October 31, 2025. You may:

  • Access results in your portal and download them for your personal use

  • Request a copy to take to another provider

Holistica lab monitoring will end after October 31, 2025.

Will I still have access to my patient portal?
Yes, through October 31, 2025. During this time, you can:

  • Access your chart history

  • View lab results

  • Download any files you wish to keep

After October 31, the portal will no longer be available.

What happens after September 26?
Holistica will no longer be operational. Please finalize all requests for records, refunds, product purchases, and referrals before that date.

Influenzinum Remedy

If you are interested in ordering this year’s Influenzinum remedy, orders will be available through the Denver Naturopathic Clinic at the standard price.

  • To reserve yours, please respond to this notice or call Holistica before September 26.

  • After September 26, please contact the Denver Naturopathic Clinic directly to be added to the list.

  • Lily will manage all orders and notify you as soon as the batch is released and in stock.

With Gratitude

We know this is difficult news, and we are deeply grateful for your patience and compassion during this transition. Thank you for trusting us with your care. Though Holistica is closing, our commitment to your health and wellbeing continues.

With gratitude and care,
The Holistica Integrative Care Team

Welcome to Holistica Integrative Care

Your Boulder Holistic Health Center 

Welcome to Holistica Integrative Care, a premier integrative medical clinic in the heart of Boulder, Colorado. We trust in the body’s inherent wisdom to heal itself and look beyond your symptoms to the underlying cause. We believe in treating the whole person and focus on prevention. At Holistica we take the time to understand and address your unique needs, and we are passionate about helping our patients get the full range of care that they need to thrive. Most patients who come to Holistica have been on a long journey, often seeing numerous providers and specialists. We work as your medical detectives to dig deep and uncover the source of your disease. At our Boulder natural health center, we understand that achieving optimal health is a journey, not a destination, and it requires a collaborative relationship between the practitioner and the patient. Our team of integrative naturopathic doctors and practitioners are dedicated to helping you reach your health goals and committed to your success.

EXPERT DOCTORS

Our practice includes the training and expertise of naturopathic doctors and integrative practitioners. With a total of over 20 years of combined experience, we work together to collaborate on your care and give you an exceptional experience.

INTEGRATIVE CARE

We care deeply about our patients and want to help them get well and stay well. Our providers and staff work diligently to be your greatest health advocates and support you on this journey. We collaborate as a team on your behalf and will give you the tools and information you need to reclaim your greatest asset: your HEALTH

ONSITE PHARMACY

Our pharmacy includes only the best physician-grade nutraceuticals, herbs, and homeopathic remedies to treat your acute or chronic illness, aid in detoxification, support your immune system, and provide important nutrients for healing and vitality.

MEET OUR TEAM

Our team collaborates to give you the best blend of conventional and alternative medicine. Take a moment to meet us!

Dr. KELESY ASPLIN
Dr. KELESY ASPLINND, CKTP
Dr. Kelsey is a registered Naturopathic Doctor who helps patients optimize their performance through gut health and neuroendocrine rebalancing.
ISABELLA ALLEGREZZA
ISABELLA ALLEGREZZAFNP-C
Isabella is a holistic, integrative family nurse practitioner, who brings compassion, empathy, and an open mind to every patient experience.
Dr. MICHAEL HUMMEL
Dr. MICHAEL HUMMELND
Dr. Michael Hummel is a registered Naturopathic Doctor specializing in integrative oncology, Lyme, Mold, MCAS, and other complex chronic health conditions.
Dr. IVY MORENO
Dr. IVY MORENOND
Dr. Ivy Moreno is a registered Naturopathic Doctor focusing on naturopathic primary care, homeopathy, and cranio-sacral therapy.
CASSIE PETRO
CASSIE PETROMS, CN, CNS
Cassie Petro is a certified nutrition specialist focusing on holistic approaches to advancing health through building positive, lasting relationships with food.

Now Offering Monthly Memberships!

Looking for more consistent, personalized support in your care journey? Our Roots Monthly Membership is designed to deepen your access to our team and services — with monthly wellness perks like B12 injections, sauna sessions, urinary analysis, and ongoing LDI support for established patients.

Memberships are completely optional and open to all current patients.

$50/month — no long-term commitment

Learn more!

Check Us Out

Tyko S
Tyko S
2023-01-29
I started seeing Dr. Shackelton one year ago and she has helped me tremendously in addressing several health challenges. She truly cares about her patients and takes time to thoroughly answer all of my questions. All of the front office staff, nurses and NREMTs are warm and welcoming as well. I am very grateful for the care I have received at Holistica!
Jenny McGuire
Jenny McGuire
2023-01-28
I cannot recommend Jessica Muniz at Holistica Integrative Medicine highly enough. I am a 42 year old woman who has an extensive life-long history of numerous mysterious health issues. I have been in the care of many Internists, Gynecologists, Specialty Gynecologists, Gastroenterologists, Rheumatologists, Allergists, Orthopedists, and the list goes on. Over the years, I have collected an impressive array of diagnoses--each of which associated with a different organ or body system, and each managed by a different medical specialty. There has never been effective communication between docs and a real cross-disciplinary examination of what the hell is going on in my body or why all of these issues are plaguing me. I initially sought help at Holistica with the same mindset I've always had--symptom management or elimination symptoms being the goal. Over the months as Jessica and I have worked together, I have gotten more than that--I have gained an understanding of some whole-body issues that likely explain many of my seemingly "unrelated issues" in my various bodily systems. Together, Jessica and I are chipping away at longstanding infections and other issues that have been foundational to perpetuating my constellation of symptoms. I am very interested in health and medicine and have done a lot of my own learning (ie Googled a lot). As we all know, this is highly irritating and triggering to most medical professionals. I find that when I bring up theories and ideas to most doctors, I get summarily dismissed. It makes me lose confidence in them--if they don't have curiosity to entertain new ideas and think outside of the box, they are not the practitioner for me (because their standard answers have never come close to solving my issues). Jessica is incredibly respectful of my questions and ideas, and collaborative in all ways. I find her depth and breadth of knowledge to be far superior to actual MDs I've seen, and when she doesn't know something, her reflexive response is to reach out to someone who knows more and learn. If you have medical issues that are mysterious to other providers, please give Jessica a try. You will not regret it!
Jillian Sterner
Jillian Sterner
2023-01-25
Jessica and her team are stellar and persistent. I have a health issue they were not familiar with but worked to find research and connected with other doctors to help with my silicone detox. it has been a long journey but they have been right alongside me with empathy and excellent care. I highly recommend Jessica and her team.
Johanna Harrow
Johanna Harrow
2022-11-22
Mary Shackelton and the Holistica Team have been an integral part of health and healing for me and my family for many years. The level of care and understanding is very supportive emotionally, mentally and physically. Mary creates a space that is open to asking questions which aides in understanding for everyone. Grateful for Holistica!
Erica Roush
Erica Roush
2022-09-07
Dr. Shackelton is equal parts genius and heart and I am so grateful to her and Holistica. Diagnoses (especially those that are really difficult to identify), comprehensive medical treatment, support, and steps toward perfect health are all covered on *new levels* at this clinic. Wonderful in-clinic pharmacy, too. Highly recommend!
Christina Smith
Christina Smith
2022-07-29
Dr. Shackelton and the entire team at Holistica has been fantastic to work with. Dr. Shackelton is very thorough and does an excellent job listening to concerns brought forward as well as offer insights on how different conditions can be related. The entire team has been very responsive, always responding quickly to my messages and have been willing to go to extra mile to make sure I'm comfortable with my course of treatment.
Laura Bukowski
Laura Bukowski
2022-05-09
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.
Jennifer Newton
Jennifer Newton
2022-02-04
I cannot say enough wonderful things about this entire office. Your Well-Being is their top priority and they really care that you are living your best life.
Miriam Deal
Miriam Deal
2021-12-09
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!

OUR HEALTH SERVICES

At Holistica Care, we understand the importance of taking care of your health by exploring all possible treatment options, including your Boulder holistic medicine. We believe that certain illnesses and symptoms require a holistic approach to ensure proper and effective treatment. Our team of expert natural holistic medicine practitioners is dedicated to providing the best care for you. Contact us today to learn more about our services and start your journey towards optimal health. Our clinic for holistic medicine believes in working closely with our patients in order to provide personalized treatment. 

Every patient is different, which is why our holistic medicine treatment center takes the time to understand your specific ailments and create an effective treatment plan for you. You’ll receive individualized support from an herbal holistic medicine practitioner, who will provide insightful guidance on how to best curb your particular symptoms. Our holistic family medicine services are always offered with your best interests in mind, as our top priority is ensuring you’re able to live life to the fullest. We offer a variety of services to get to the root cause of your symptoms or illness and return your body to homeostasis. With the right tools and support, you can take back your health and your life.

We understand that some patients may want more natural treatment options to treat their disease and symptoms. At Holistica Integrative Care, we treat the whole person and offer a variety of treatment options that include IV nutrient therapy, low dose immunotherapy, and integrative medicine. Our integrative methods treat all types of cancers and are designed to complement and support modern oncology treatments. To learn more about our premier cancer treatment center in Boulder, CO, call (303) 449-3777.

TESTING

Testing is a key diagnostic tool to uncover the underlying cause of your symptoms. We use a variety of testing and cutting edge technologies to get to the source of your illness. Our testing relies on blood, urine, saliva, stool, and genetic samples to provide the answers you've been seeking.

INTEGRATIVE MEDICINE

At Holistica Integrative Care, we draw on the principles of natural and functional medicine and believe that your body has the power to heal itself. Once we uncover the underlying cause of your symptoms, our Boulder integrative health team combines nutrients, herbs, remedies, and other tools, such as infrared sauna therapy, dietary changes, and detox protocols, to support this innate healing power.

IV NUTRIENT THERAPY

Are you looking for a more effective way to receive essential vitamins and nutrients? Consider IV vitamin therapy at our Boulder holistic medicine clinic. IV Nutrient Therapy delivers a powerful combination of vitamins, minerals, amino acids, antioxidants, and other critical nutrients directly to your cells for maximum absorption. This therapy is highly effective for immune support, detoxification, wound healing, cognitive function, and addressing vitamin and mineral deficiencies. Plus, it can also help with environmental insults and heavy metals. Contact us today to learn more about our IV vitamin therapy options.

Make An Appointment

We require 48 (business) hours notice to cancel your appointment. If we do not receive at least 48 hours notice, a cancellation fee will be applied.