Mistletoe therapy sits at an unusual intersection: it’s backed by decades of European clinical research, yet most conventional oncology offices in the U.S. still don’t offer it. Denver patients looking for integrative cancer support – or a practitioner trained to administer it safely – are increasingly turning to functional medicine clinics. The five practices below represent the strongest options in the Denver metro area right now.
What mistletoe therapy actually does
Mistletoe therapy involves injecting extracts from the Viscum album plant – subcutaneously or intravenously – alongside conventional cancer treatment. These extracts contain lectins and viscotoxins believed to stimulate immune activity, support quality of life during chemotherapy, and, in certain study populations, affect tumor cell behavior. A 2021 review in the journal Integrative Cancer Therapies found mistletoe extract linked to reduced fatigue and better quality-of-life scores among cancer patients receiving concurrent conventional treatment.
It’s not a standalone cancer cure. Reputable practitioners never frame it that way, and the therapy demands a provider who actually understands dosing, preparation type (fermented and aqueous extracts aren’t interchangeable), and how mistletoe fits within a patient’s existing treatment plan. That’s why the difference between genuine training and passing familiarity at a clinic isn’t trivial.
1. Bionuu Functional Medicine Denver
Bionuu Functional Medicine Denver is a physician-led integrative practice in Centennial, founded in 2015 by Dr. Sorina Simion-Rodgers, MD, whose advanced mistletoe training comes through PAAM – the Physicians’ Association for Anthroposophic Medicine – one of the most recognized credentialing bodies for this therapy in the U.S.
Where it fits: Patients seeking mistletoe therapy as part of a broader integrative cancer support plan will find this clinic one of the few in the Denver market where an MD holds specific oncology-adjacent training. Dr. Simion-Rodgers also holds a Metabolic Approach to Cancer (MTIH) practitioner designation, and mistletoe therapy sits alongside ozone therapy, vitamin IV infusions, PEMF, hyperthermia, and bioidentical hormone replacement under one roof. Initial consultations run 60 minutes one-on-one with the doctor, with roughly three hours of total team time behind each visit for record review and plan development. The clinic reports a 5.0 rating across 350+ patient reviews. Telehealth is available for patients in Colorado and Pennsylvania.
2. EmpowHer
EmpowHer Functional Medicine Collective, based at 441 Wadsworth Blvd in Lakewood, was founded by Dr. Elizabeth Northway, DC, and focuses primarily on women’s health concerns, including hormone balance and burnout recovery.
Where it fits: With 14+ years of experience in women’s health, Dr. Northway’s practice blends functional medicine, acupuncture, chiropractic care, and health coaching. Virtual functional medicine services extend to patients across the entire U.S., making this a strong option for someone who wants a Colorado-based practitioner but can’t travel to a clinic regularly. The practice leans toward hormone-centered and lifestyle-driven protocols.
Worth checking: The clinic’s published focus areas center on women’s hormonal and recovery concerns rather than integrative oncology. Patients looking for mistletoe therapy or cancer support protocols should confirm whether those services are offered before scheduling.
3. Prime Health
Prime Health, located at 6001 W. 16th Ave in Lakewood, is a root-cause medicine practice led by Soyona Rafatjah, MD, with a credentialed team that includes two IFMCP-certified providers.
Where it fits: The practice structures care around two defined plans – the Foundations Care Plan and the Advanced Care Plan – each combining provider visits, health coaching, direct messaging, and unlimited infrared sauna access. That team structure (medical providers, health coaches, and a medical director working in tandem) suits patients who want coordinated, ongoing care rather than isolated appointments. Advanced diagnostic testing covers thyroid, hormonal, autoimmune, and inflammatory markers.
Worth checking: Prime Health’s documented specialty areas focus on digestive health, thyroid conditions, hormonal balance, and autoimmune concerns. Patients whose main interest is mistletoe therapy or integrative oncology support should verify whether those services are available at the practice.
4. Denver Naturopathic Clinic
Denver Naturopathic Clinic, at 1181 S Parker Rd in Denver, is led by Dr. Kelsey Asplin, a Bastyr University graduate who has maintained a private naturopathic practice since 2015.
Where it fits: The clinic’s listed services include naturopathic oncology alongside functional medicine, nutrition counseling, laser therapy, and low-dose immunotherapy, making it one of the broader naturopathic service menus in the Denver area. The Mind-Body programs target performance-focused patients who want to work with lifestyle, nutrition, and professional-grade supplements rather than relying heavily on pharmaceuticals. Additional providers include Dr. Ivy Moreno and Dr. Michael Hummel Flynn.
Worth checking: Naturopathic oncology and functional medicine oncology aren’t identical disciplines; the clinical tools and regulatory scope differ. Patients seeking physician-administered mistletoe injection protocols should clarify the clinic’s scope and provider credentials for that service.
5. Denver Integrative Health
Denver Integrative Health is a functional medicine practice located at 5690 DTC Blvd in Greenwood Village, founded by Nina Kimsey, a functional medicine practitioner with more than 25 years of clinical experience.
Where it fits: The practice works with both adults and children, covering longevity, cognitive health, pediatric care, gut and microbiome health, metabolic concerns, and hormone and thyroid balance. Diagnostics go deep: blood panels, gut microbiome testing, urine metabolic profiles, and whole-body testing are all part of the intake process. That diagnostic depth makes the practice a strong fit for patients whose symptoms cross multiple systems.
Worth checking: The clinic’s documented focus areas are mainly metabolic, hormonal, and gut-related. Patients whose main goal is mistletoe therapy or integrative cancer support should contact the clinic directly to confirm whether those services are currently available.
Insurance coverage for mistletoe therapy in Denver
Most health insurance plans in the U.S. don’t cover mistletoe therapy because it remains classified as an investigational or complementary treatment rather than a standard-of-care intervention. That includes Medicare and most private plans. And because these functional medicine practices generally operate outside conventional insurance billing frameworks, the out-of-pocket costs extend beyond just the therapy itself to include consultations, advanced labs, and any concurrent treatments.
Costs matter. Denver-area functional medicine initial consultations typically run $200 to $600, based on general market data, and first-year lab costs for comprehensive panels often reach $800 to $2,000. Mistletoe therapy itself adds to that total, depending on preparation type, frequency, and whether it’s subcutaneous or IV. HSA and FSA funds are commonly accepted at practices like these, though each clinic’s policies vary and should be confirmed directly.
A patient going through this process should treat the first consultation as a working session: bring records from your oncologist, ask how the clinic’s providers are trained in mistletoe therapy, and clarify how they coordinate with your existing treatment team. The best outcomes come from working with, not instead of, conventional care.
Bottom Line
Denver has a growing number of functional medicine clinics, but the best functional medicine clinics in Denver for mistletoe therapy are those where a trained provider can connect that therapy to a patient’s full clinical picture, not just administer it in isolation. Training credentials matter here more than almost any other integrative therapy because dosing, preparation type, and interaction with concurrent treatments aren’t standardized the way conventional drugs are.
For patients whose primary need is integrative oncology support, the short list narrows fast. EmpowHer and Denver Integrative Health both bring real functional medicine depth, but their published focus areas don’t center on oncology. Prime Health and Denver Naturopathic Clinic offer broader service menus. Whatever clinic a patient chooses, the core question stays the same: what’s the provider’s specific training in mistletoe therapy, and how will it be coordinated with a conventional oncologist?
Note: Mistletoe therapy uses extracts from Viscum album L. as complementary therapy in some cancers. It contains mistletoe lectins, viscotoxins, and polysaccharides that stimulate the immune system and promote tumor cell destruction (apoptosis) in lab studies. Many clinics globally offer such treatment. Scientific information is available on the research and evidence.
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