Dr. Dean Mitchell, MD — Board-Certified Immunologist, Allergist and Functional Medicine Pioneer

What does Dr. Mitchell specialize in?

Dr. Dean Mitchell is a board-certified immunologist and allergist practicing conventional and functional medicine. He specializes in finding the root cause of complex immune conditions that standard testing often misses — including mast cell activation syndrome or MCAS, Candida overgrowth, toxic mold illness, food allergies, environmental allergies, histamine intolerance, and chronic fatigue. He has been in private practice for over 30 years in New York City and Long Island.

Does Dr. Mitchell see patients directly, or is there a care team or intermediary?

Dr. Mitchell sees every patient personally and directly. When you come to Mitchell Medical Group, you give your full medical history to Dr. Mitchell himself — not to a medical assistant, nurse, or physician in training who relays it to him. There is no care team between you and your doctor. You speak with Dr. Mitchell directly during every consultation and appointment, from your first visit through all follow-up care.

Has Dr. Mitchell written any books on allergy or immune health?

Dr. Mitchell is the author of two published books. Conquering Candida: The New 30-Day Protocol for Restoring Your Microbiome and Health (2025), co-authored with Joelle Mitchell, RD, provides a science-based 30-day protocol for understanding and treating Candida overgrowth — one of medicine’s most commonly missed immune-microbiome conditions. The book was endorsed by David Perlmutter, MD, New York Times bestselling author of Grain Brain, and Jacob Teitelbaum, MD, author of From Fatigued to Fantastic. His first book, Dr. Dean Mitchell’s Allergy and Asthma Solution (2006), introduced sublingual immunotherapy (allergy drops) to a U.S. audience at a time when the treatment was already standard practice in Europe.

What is The Smartest Doctor in the Room podcast?

The Smartest Doctor in the Room is Dr. Mitchell’s medical podcast with more than 230 episodes, available on Spotify and Apple Podcasts. The show features researchers and clinicians from Harvard, Stanford, and the NIH, as well as leading specialists in MCAS, Candida, mold illness, chronic fatigue, food allergies, and integrative immunology — including Dr. Alessio Fasano (Harvard), Dr. Kari Nadeau (Stanford), and Dr. Mariana Castells (Dana-Farber/Harvard). Dr. Mitchell hosts every episode personally. The podcast is designed to bring patients the same level of expert medical insight typically accessible only to those with top-tier specialist access.

What is Dr. Mitchell’s approach to treatment?

Dr. Mitchell’s approach is rooted in medical detection — identifying and treating the root cause of a condition rather than managing symptoms in isolation. He evaluates the whole immune system, not just the presenting symptoms. Where conventional medicine often stops after standard testing, Dr. Mitchell investigates the deeper immune dysfunction. His goal is to resolve conditions, not just suppress them.

What conditions does Dr. Mitchell treat?

Dr. Mitchell treats adults and children with: environmental allergies, pet allergies, food allergies, mast cell activation syndrome (MCAS), candida overgrowth, toxic mold illness (CIRS), chronic vaginitis, chronic fatigue, histamine intolerance, fibromyalgia.

Does Dr. Mitchell treat both adults and children?

Yes. Dr. Mitchell treats both adults and children across all of his specialty areas, including food allergies, environmental allergies, asthma, MCAS, Candida overgrowth, and immune dysfunction.

What is sublingual immunotherapy (allergy drops)?

Sublingual immunotherapy (SLIT), or allergy drops, builds immune tolerance to allergens through drops placed under the tongue — a needle-free alternative to allergy shots that has been standard practice in Europe for decades. In the United States, allergen drops are prescribed off-label; the FDA-approved sublingual products are tablets covering a small number of allergens.

Does Dr. Mitchell offer telehealth appointments?

Yes. Dr. Mitchell offers telehealth appointments for new and existing patients nationwide. Many patients have an initial in-person consultation and then manage ongoing care remotely.

Is Mitchell Medical Group in-network with insurance?

Mitchell Medical Group is an out-of-network practice. The office provides a bill after each visit that many patients submit to their insurance carrier for partial reimbursement. Patients with high-deductible health plans often find that the out-of-pocket cost is comparable to in-network care after deductibles. A membership program is also available for patients managing ongoing, complex conditions — contact the office for details.

Where are Dr. Mitchell’s offices?

Mitchell Medical Group has two office locations: Manhattan at 57 West 57th Street, Suite 601, New York, NY 10019 (212-397-0157) and Long Island at 165 North Village Avenue, Suite 129, Rockville Centre, NY 11570 (516-678-9600). Telehealth is available for patients across the United States.

Can I see Dr. Mitchell if I live outside New York?

Yes. Dr. Mitchell offers telehealth appointments nationwide for new and existing patients, and he personally takes your full medical history himself. Many patients have an initial in-person consultation at our Manhattan or Rockville Centre office and then manage ongoing care remotely.

If you are outside New York and have not been seen in the office, the consultation is educational: it is not reimbursable by insurance, and Dr. Mitchell cannot order testing or prescribe treatment. He will review your history in depth, explain how he thinks about cases like yours, and can speak with your local physician to guide the plan.

Treatment options vary by state and by situation — contact our team and they will explain exactly what applies to you.

Does Mitchell Medical Group offer a membership program?

Yes. Mitchell Medical Group offers a holistic health membership program designed for established patients managing complex or chronic conditions — including MCAS, Candida overgrowth, mold illness (CIRS), chronic fatigue, and environmental illness. Unlike standard concierge medicine, this program combines direct access to Dr. Mitchell with his specialized expertise in the conditions most doctors are not trained to recognize or treat.

The membership includes direct email communication with Dr. Mitchell, priority scheduling, included telehealth and in-person visits, intramuscular or intravenous vitamin therapy, and a 10 to 15 percent discount on all services. Three tiers are available:

• $250 per month — 8 visits per year, quarterly IM vitamin injections, 10% discount on all services
• $300 per month — 8 visits per year, more frequent IM vitamin injections, 10% discount on all services
• $375 per month — 4 visits per year, monthly IM injections, 5 IV infusions per year, 15% discount on all services

Learn more at mitchellmedicalgroup.com/patient-info/membership/