Top Questions

When choosing a new doctors office, you want to be sure you’re choosing one that you can fully trust to answer all of your questions and concerns. We provide easy-to-understand guides on some of the most common questions and concerns we receive from new and existing patients. Below, you’ll will find a list of some frequently asked questions from our clients.


What Insurances do you accept? Can you check my benefits for me?

Dr. Nigh is in network with the following insurance companies:

  • Axis

  • Cigna

  • First Choice

  • Liberty Health Share

  • MODA

  • PacificSource

  • Providence Health Plans

  • Regence/Blue Cross Blue Shield

  • United Health Care

Appointments with Maria Zilka cannot be billed to insurance.

Also, please note that as of April 1, Dr. Nigh will no longer be billing insurance. He will not be in network with any plant except MODA. MODA expires on as of May 1.

Immersion Health will be adjusting office visit prices down as of April 1 in order to make it more feasible for current insurance patients to stay on as patients of Dr. Nigh. We will also provide a Superbill for office visits, allowing patients to submit claims on their own for out-of-network coverage.

Also, Please note that the front desk cannot check your benefits​. If you have questions regarding coverage you will have to get into contact with your insurance company. We recommend filling out an insurance verification form before you decide to see Dr. Nigh. If you would like to fill out an insurance verification form click here. This form is for your information only. It is not a guarantee of coverage.

We do not accept any medicare/medicaid at this time. Immersion Health cannot bill any insurances out of network (even if you have out of network coverage.) You can submit a claim on your own if you like.

What conditions do you treat?

Immersion Health offers primary care medical services for a wide range of symptoms and conditions. These can include, but are certainly not limited to, the following:

  • Mold-related illness

  • Diabetes

  • Thyroid disorders, including Hashimoto's

  • Allergies of all types

  • Asthma

  • Parkinson's Disease

  • Multiple Sclerosis

  • Pain management

  • Crohn's/ulcerative colitis/IBS

  • Lyme disease

  • Male and female hormonal issues

  • Depression

  • Insomnia

  • Anxiety

  • Headache, including migraines

  • Cardiovascular issues, including high/low blood pressure

  • Arrhythmia

  • Arthritis, both rheumatoid and osteoarthritis

In addition to the above conditions, the expertise of Dr. Nigh and Maria are especially sought out by patients around the world for the treatment of a few specific diseases and conditions:

  • Cancer

  • Small Intestinal Bacterial Overgrowth (SIBO)

  • Chronic Fatigue

  • Inflammatory Bowel Disease (Crohn's, Ulcerative Colitis)

  • Addictions

  • Severe Depression

Why do I have to pay a deposit to see Dr. Nigh? How much is it? What happens if I need to cancel my appointment?

In order to secure a new patient appointment with Dr. Nigh, a prepayment of the total cost of your appointment will be collected at the time of scheduling. If you are using insurance, that prepaid amount will be returned to you at the end of the intake appointment so the visit may be adjusted by your insurance provider. If not using insurance, then that prepayment will be used to cover the office visit.
Our goal is to help as many people as possible to the best of our abilities, so Dr. Nigh also has a 48 hour cancellation policy in order to provide time to allow those on the cancellation list to fill those openings.
In the event of a cancellation within that 48 hour window or a no-show for the appointment, the prepayment above will be collected as a no-show/cancellation fee.

I paid lots of money for my treatment plan, and I got another bill in the mail. What am I getting billed for?

When billing insurance for IVs please be aware that there are two portions to an IV. There is the service fee, and the ingredients. The ingredients for an IV are what you pay for in the clinic, and the majority cost of the IV. We have a cash pay cost of $50 per IV for the service fee. Insurance can charge $170+ per IV, so if you do not have total coverage on IV services, you will owe more money after the billing process has completed.

Once services are billed to insurance, Immersion Health can no longer negotiate pricing and any remaining balance is the patient's responsibility.

If you have any further questions about this process please call our billers at EMBS: (503) 384-2988

I stopped treatment halfway through my program. I think I have a credit on my account, what are my options?

If you stop treatment in our clinic for any reason during a treatment plan please let Dr. Nigh and Maria know immediately. We can hold funds for up to a year after the initial payment date. After a year has passed Immersion Health can no longer hold funds. Any credit on your account can be used toward services within Immersion Health. Services include treatments, and office visits. Your credit cannot be used for any products sold in the clinic such as supplements, snacks, etc. 

I am interested in treatment at Immersion Health, but I don't live in Portland. What are my options?

Dr. Nigh works with patients around the world. Dr. Nigh cannot work with other practitioners directly regarding your case, however, we are happy to send over records with your documented permission. Dr. Nigh can prescribe IV therapy and other medications for you if he has licensure in your state.
We regularly have patients fly out for treatment in our clinic. Dr. Nigh offers intensive treatment programs for however long you are able to stay in Portland. The front desk will provide you with a schedule prior to your arrival.

Why are there no prices for IV and other therapies listed on the website?

Pricing on IV therapy, much like the other therapies offered at Immersion Health ranges based on the type, length and dosage of IV.
The minimum amount for any IV we offer is $206 out of pocket.
Any further questions about IV therapy at Immersion Health can be directed to the medical assisting staff at 503-719-4806.

How do I cancel my appointment?

If you must cancel your appointment, please do so by calling our front desk staff. Immersion Health also sends text messages three days prior to your appointment. In these text messages you are able to confirm, reschedule or cancel your appointment. However, if you are cancelling within the 48 hours of your appointment you must contact the front desk, and you will be charged accordingly.

Can’t find the answer to your question? Contact us!
(503) 719-4806