About Us

Nexus IV is a mobile and office-based IV service that is a spin-off of its sister company, Integrity Wellness MD. We’re based in Charlotte, North Carolina and serve the greater Charlotte region. Our goal is to become the premier provider of IVs in our geographic area.

Bill and Gretchen Reis, MD

Bill Reis is the Chief Operating Officer of Nexus IV. He has a degree from the University of Notre Dame and in his early career, he worked in business, art, and environmental landscaping. More recently he attended the Institute of Integrative Nutrition, where he studied health and nutrition coaching. He truly enjoys health coaching and helping people discover consistent ways to improve their health naturally. He is passionate about alternative approaches to health, and discovered for himself the benefits of IV hydration therapy. He is now focused on expanding IV hydration in the greater Charlotte area to as many people as possible, by bringing services to the workplace or home for convenience. He loves helping others feel their best.

Gretchen Reis, MD specializes in bioidentical hormone therapy and is the Medical Director of Integrity Wellness MD in Charlotte, as well as the medical director of Nexus IV. Dr. Reis is dedicated to integrative medicine and her patients, working in partnership with each patient as she helps them discover optimal wellness. It was her devotion to her patients that led her to leave traditional family medicine and join the growing field of functional medicine, where she addresses health from a whole body perspective. Helping provide IV hydration services is in perfect alignment with her integrative approach to health.

Bill and Gretchen have 5 children, 4 of whom were adopted out of foster care and one of whom has autism and other developmental disabilities. They have firsthand experience with many parenting challenges but are proud of all of their children who have grown into adults and are all doing well. Their youngest with special needs has improved greatly over the years and is a blessing to all who know him. They raised their children up north in Pennsylvania and Ohio, but have been here in the Charlotte area for almost 10 years and absolutely love it!

Our Vision

Our vision is to be the leading provider of executive level IV services. We strive to enhance energy levels, foster healthy resting states, and optimize efficiency. We seek to help our clients to exceed their personal goals and create a lasting impact in their lives. Our hope is to help prevent needless medical intervention long-term.

Partner Pharmacies

We proudly partner with several excellent pharmacies who produce high quality products. It is important that any IV product be produced according to strict regulations regarding purity and quality. Our partner pharmacies are industry leaders who are highly respected nationwide because of their excellent products.

Frequently Asked Questions

Some of the most common questions we get about IVs, health, and more.

Nexus IV is a mobile and office-based IV service that is a spin-off of its sister company, Integrity Wellness MD. We’re located in Charlotte, North Carolina and provide both office-based and mobile IV services in the greater Charlotte area. Our goal is to become the premier provider of IVs in our region.

People use intravenous (IV) hydration and vitamin and mineral supplementation for several reasons:

  1. Rapid Rehydration: IV hydration allows for quick and efficient rehydration compared to oral
    intake. It bypasses the digestive system, allowing fluids and electrolytes to be directly delivered
    into the bloodstream. This can be beneficial for clients who are dehydrated due to illness,
    intense physical activity, or excessive fluid loss.
  2. Enhanced Nutrient Absorption: IV administration can ensure optimal absorption of vitamins
    and minerals because they are delivered directly into the bloodstream. This method bypasses
    the digestive system, where nutrient absorption can be affected by factors such as poor
    digestion, malabsorption issues, or certain medications.
  3. Increased Nutrient Levels: IV therapy allows for higher concentrations of vitamins and minerals
    to be delivered compared to oral supplementation. This is particularly useful for individuals with
    nutrient deficiencies or those who require higher levels of certain nutrients for specific health
    conditions or goals.
  4. Customized Treatment: IV therapy can be tailored to meet individual needs. Healthcare
    professionals can assess a client’s health status, identify possible nutrient needs, and
    recommend an IV formula tailored to address those deficiencies. This personalized approach can
    provide targeted support for various health concerns, including immune support, athletic
    performance, fatigue, and stress management. At Nexus IV, all clients are seen first by a licensed provider to evaluate their health and recommend IV’s that are best able to meet their needs.
  5. Quick Effects: IV therapy can often provide faster and more noticeable effects compared to
    oral supplementation. Clients may experience increased energy, improved mood, enhanced
    immune function, and quicker recovery from physical exertion or illness.

*It’s important to note that IV therapy should always be administered by trained healthcare professionals who can assess the client’s health status, ensure appropriate dosing, and monitor for any potential adverse reactions. Individual needs and circumstances should always be considered before deciding on the use of IV hydration and nutrient supplementation.

  • IVs, or intravenous therapies, can be effective for certain medical conditions and situations. IV therapy involves the administration of fluids, medications, or nutrients directly into a person’s veins. The direct delivery into the bloodstream allows for rapid absorption and distribution throughout the body.
  • IVs are commonly used in hospitals and medical settings to deliver medications directly into the bloodstream, which provides whole-body therapeutic levels much more powerfully than oral administration. They can also be used to provide fluids and electrolytes to individuals who are dehydrated or unable to consume fluids orally.
  • In recent years, there has been an increase in the popularity of IV therapy for non-medical purposes, such as wellness treatments, hangover relief, or athletic performance enhancement. While some people claim to experience benefits from these treatments, it’s important to note that the scientific evidence supporting the effectiveness of these non-medical IV therapies is limited.
  • For medical purposes, IVs are an established and well-regarded method of treatment, as they allow for precise dosing, quick action, and bypassing the digestive system. However, for non-medical purposes, it is advisable to consult with a healthcare professional and rely on evidence-based treatments before considering IV therapies.

IV hydration, also known as intravenous hydration, is a medical procedure that involves delivering fluids directly into a person’s bloodstream through a vein. This method allows for rapid and efficient hydration when oral intake of fluids is not sufficient or feasible.

Here’s how IV hydration works:

  • Insertion of an IV line: A healthcare professional inserts a sterile catheter (a thin tube) into a vein, usually in the arm or hand. 
  • Selection of fluids: Various types of fluids can be used for IV hydration, depending on the individual’s needs. Common options include saline (a solution of salt and water), electrolyte solutions, or a combination of fluids and medications.
  • Regulation of flow rate: The flow rate of the IV fluids is carefully controlled using a drip chamber and an adjustable clamp. The healthcare provider sets the appropriate rate based on the patient’s condition and the IV formulation being infused.
  • Absorption and distribution: Once the fluids enter the bloodstream, they are quickly distributed throughout the body. This allows the body’s cells, tissues, and organs to absorb the necessary water, electrolytes, and nutrients directly, bypassing the digestive system.
  • Replenishing electrolytes: In cases where the person is dehydrated or experiencing an electrolyte imbalance, IV hydration can include electrolyte solutions to restore the balance of essential minerals such as sodium, potassium, calcium, and magnesium.
  • Monitoring and adjustments: Throughout the IV hydration process, healthcare professionals monitor the patient’s vital signs, including blood pressure, heart rate, and oxygen levels. They also assess the person’s response to the fluids and make any necessary adjustments to the flow rate or fluid composition.

IV hydration, or intravenous hydration, may be needed for a variety of reasons. Here are some common situations where IV hydration may be necessary:

  • Dehydration: If you are dehydrated, meaning your body lacks the necessary fluid levels to function properly, IV hydration can help replenish lost fluids more quickly and efficiently than oral intake alone. Dehydration can occur due to illnesses such as diarrhea or vomiting, or can occur after excessive sweating or exercise.
  • Nausea: If you’re experiencing persistent nausea from an illness or a migraine headache, it may be difficult to keep fluids down through oral intake. IV hydration can help ensure that your body receives the necessary fluids and electrolytes while bypassing the gastrointestinal system. Anti nausea medication can also be added to your IV to ease the nausea.
  • Stress: Certain vitamins and minerals, when given IV, can help promote relaxation and ease the feeling of stress.
  • Immune Support: When you are sick with a minor illness, it is easy to get dehydrated and depleted of nutrients due to lack of appetite. Certain vitamins and minerals are essential to an optimized immune system. IV nutrients can ensure your immune system has these nutrients available for optimal immune function to help you recover.
  • Athletic and Brain Performance: When your body is deficient in B vitamins, minerals or amino acids, you may not be able to perform your best either physically or mentally. Optimizing nutrients ensures that deficiencies do not take away from your optimal abilities.
  • Systemic nutrient administration: Some nutrients, such as NAD+, are administered through an intravenous route to ensure a significant effect. NAD+ in particular, simply is not very effective when administered orally or as a nasal spray. Intravenous administration provides higher levels through the body to increase the chance of experiencing benefit.

IV hydration is always administered under medical supervision, allowing healthcare professionals to monitor your hydration status and adjust the fluids and electrolytes as needed. If you believe you may require IV hydration, it is important to consult with a healthcare provider who can evaluate your specific situation and determine the most appropriate course of action.

The frequency at which you can receive IV hydration depends on several factors, including your individual needs, overall health, and the recommendation of your healthcare provider. 

For short-term issues, IV hydration is typically used to replenish fluids and electrolytes in situations where oral intake may not be sufficient or possible, such as dehydration or some acute illnesses.

In some circumstances, however, IV therapies are used every few weeks or months to support ongoing nutritional needs. Many people find that IV nutrient infusions done on a regular basis notably enhance their physical or mental performance. 

If you feel that you would benefit from regular IV therapy, your healthcare provider will evaluate your health and may prescribe regular or intermittent IV hydration sessions as part of your long-term treatment plan. In such cases, the frequency and duration of IV hydration will be determined by your specific needs and monitored by your healthcare provider.

IV solutions and formulas are tailored to address different medical needs, such as rehydration, electrolyte imbalance, medication administration, or nutrient supplementation. While we highly value your interest and preferences, all IV administrations must be ordered by a licensed provider after a face-to-face consultation with you. 

Please see our list of IV formulas for details of ingredients in each formula and typical uses.

IV hydration, or intravenous hydration, is a medical procedure that involves delivering fluids directly into the bloodstream through a vein. It is commonly used in various medical settings to treat dehydration or to provide fluids and nutrients when a person is unable to take them orally.

IV hydration can be necessary in certain situations, such as:

  • Severe dehydration: When a person is severely dehydrated, especially due to factors like excessive vomiting, diarrhea, or fluid loss from a medical condition, IV hydration may be necessary to rapidly restore fluid balance and prevent complications.
  • Inability to tolerate oral intake: If someone is unable to drink fluids or has difficulty absorbing them through the gastrointestinal tract, such as in cases of severe nausea, vomiting, or intestinal obstruction, IV hydration can be essential to maintain hydration.
  • Surgical procedures: Before and after certain surgeries, especially those requiring fasting or involving significant fluid loss, IV hydration may be used to ensure adequate hydration and maintain stable blood pressure.
  • Electrolyte imbalances: In situations where there are imbalances in essential electrolytes like sodium, potassium, or magnesium, IV fluids can be administered to correct these imbalances efficiently.
  • Administration of medications or treatments: Some medications or medical treatments require administration via IV infusion to ensure their rapid and direct delivery into the bloodstream.

It is important to note that IV hydration should be administered under the guidance of healthcare professionals who can assess the individual’s specific needs and monitor the response to treatment. In many cases, oral rehydration with fluids and electrolyte-rich solutions may be sufficient for mild dehydration or maintenance of hydration. However, for more severe cases or when oral intake is not feasible, IV hydration can be a necessary and effective intervention.

A medical evaluation before receiving intravenous (IV) hydration is important for several reasons:


  • Assessment of Medical History: A medical evaluation allows healthcare professionals to gather information about your medical history, including any pre-existing conditions, allergies, medications you may be taking, and previous experiences with IV therapy. This information helps them determine the appropriateness of IV hydration for your specific situation.
  • Identification of Underlying Issues: IV hydration is often prescribed to address dehydration, but it’s crucial to identify the underlying cause of dehydration. A medical evaluation can help determine if your dehydration is a result of a simple fluid loss or if there is an underlying medical condition contributing to it. Identifying and addressing the root cause is essential for effective treatment. If you are in need of medical care, IV hydration will only be provided if you are under the care of a provider for your condition. IV hydration is not a substitute for comprehensive medical care but an adjunct to it.
  • Assessment of Vital Signs: During a medical evaluation, healthcare professionals typically measure vital signs such as blood pressure, heart rate, respiratory rate, and temperature. Abnormalities in these parameters may indicate other health issues that need to be addressed before or during IV hydration.
  • Identification of Contraindications or Precautions: Certain medical conditions or factors may contraindicate or require precautions during IV hydration. For example, if you have congestive heart failure, kidney problems, liver problems or a history of allergic reactions to certain substances, you may not be an appropriate candidate for IV hydration.
  • Individualized Treatment Plan: Based on the findings of the medical evaluation, healthcare professionals can develop an individualized treatment plan tailored to your specific needs. This includes determining the appropriate type and volume of fluids, rate of administration, and any necessary monitoring during the process.

Overall, a medical evaluation before IV hydration ensures that the treatment is safe, effective, and tailored to your unique medical condition. 

The initial evaluation ($49) is valid for 12 months and then will be updated annually ($39).