Become a Patient at Green Medicine of Wisconsin
Three to four hours with our skilled team. A plan shaped around you. Test results that change what we do next.
Individualized care, not protocols
Functional and integrative medicine in Oshkosh, Wisconsin. A clinic for patients who want a thorough, root-cause approach. No assembly-line care. No one-size protocols. Your plan is shaped around you by providers trained in both traditional and integrative medicine.
We see two kinds of patients: those who have gotten partial answers from conventional medicine and want a deeper layer of care, and those still searching for answers conventional medicine hasn't given them.
What sets us apart
No protocols. An individualized treatment plan. Most clinics work from a narrow set of options. Ours is broader. Your plan is built around you.
Traditionally trained nurse practitioners with deep integrative training. Evelyn Andersen, MSN, APNP, FNP-C, CISSN, ABAAHP, FAAMM, and Dr. Jamie Lorrigan, DNP, APNP, ACNPC-AG, are licensed nurse practitioners with full conventional clinical training, plus advanced certifications in functional, metabolic, and anti-aging medicine. We can write a conventional prescription when that is the right answer. We can also reach for compounded medications, herbal regimens, IV therapies, ozone therapy, light therapies, bioidentical hormones, homeopathy, targeted lifestyle interventions, lymphatic massage, and PRF microneedling.
ILADS members with advanced Lyme training. Both providers are members of the International Lyme and Associated Diseases Society, a professional society for clinicians with advanced training in Lyme and tick-borne illness.
3 to 4 hours for your first visit. U.S. primary care averages a 17-minute visit. We give you 3 to 4 hours.
Continuously trained. Formal credentialing is through the Institute for Functional Medicine and the American Academy of Anti-Aging Medicine (A4M); Evelyn's ABAAHP and FAAMM letters reflect the full A4M fellowship pathway, and homeopathy training is through RMDY Collective. Ongoing study also includes physiology-focused educators such as Metabolic Fitness with Dr. Bryan Walsh and circadian and mitochondrial work in the Dr. Jack Kruse lineage.
Onsite labs and in-house therapies. Labs and most therapies happen in our clinic. Less driving for you, better continuity for us.
Trusted by patients across the country
"I feel so grateful to have found Green Medicine to guide me along my healing journey."
Verified Google review
Patients have traveled to our Oshkosh clinic from 24 states and 2 countries since 2013.
Conditions we work with
Different names, often overlapping roots. We start by asking what is driving the picture, not just what to suppress.
- Lyme disease and tick-borne illness, including Bartonella, Babesia, and co-infections
- Mold toxicity and chronic inflammatory response syndrome (CIRS)
- Long COVID and post-viral syndromes
- Hormone imbalance, perimenopause, menopause, andropause
- Thyroid disease, including Hashimoto's and unresolved hypothyroid pictures
- Autoimmune conditions, including rheumatoid arthritis
- Longevity, vitality, anti-aging, and prevention for people who already feel well
See full conditions list
- Chronic fatigue and fibromyalgia
- Chronic pain
- Gut and metabolic dysfunction
- Cardiometabolic and heart health, including advanced lipid risk
- Asthma and chronic respiratory inflammation
- Hormone optimization for active adults
- PANDAS and PANS in pediatric patients
Not listed? Reach out and ask.
In-house therapies and modalities
Therapies we reach for when the clinical picture calls for them, not a menu to upsell from. Supplements are dispensed in-clinic for continuity and quality control.
- IV nutrient and hydration therapy
- Ozone IV
- Bioidentical hormone therapy
- Compounded prescriptions through partner compounding pharmacies
- Targeted antibiotic regimens (ILADS-informed) when appropriate
- Herbal antimicrobial and supportive regimens
- SkinPen PRF microneedling
- Nutritional and lifestyle counseling
- Manual lymphatic drainage massage
See full therapy list
- UV blood irradiation (UVBI)
- IV light therapy
- Red light therapy
- Homeopathy, including acute first-aid prescribing and constitutional work
- Peptide therapy where clinically appropriate
- EVOX sessions
Visit our services page for full details →
Labs and testing
Comprehensive testing, zero waste. Most labs tell you if something is broken. Ours tell you why. We dig into the markers that actually drive how you feel: hormones, metabolic health, inflammation, and nutrient status. Every panel has a purpose and a plan attached. More answers, less spend.
Common panels we order:
- In-depth micronutrient panels
- Advanced lipid and cardiometabolic panels (particle size, ApoB, Lp(a), inflammatory markers)
- Comprehensive thyroid panels (free and total T3 and T4, reverse T3, antibodies)
- Lyme and tick-borne co-infection testing through specialty labs
- DUTCH and other advanced hormone metabolite panels
See full lab panel list
- Gut health and stool testing (GI-MAP and similar)
- Organic acids testing (OAT)
- Mold and mycotoxin testing
- Heavy metal testing
- Food sensitivity testing when clinically useful
- Genetic and methylation testing (MTHFR and related)
- Autoimmune marker panels
Most draws happen in our clinic; some specialty kits ship to your home. Bring labs from other providers when you have them. Reusing existing results saves money and avoids duplicate testing.
Traveling to us
Most patients begin care in person at our Oshkosh clinic. Patients travel from across the United States, and the team coordinates the visit so the trip is worth it.
Airport access. Appleton International (ATW) is roughly 25 minutes from the clinic. Austin Straubel International in Green Bay (GRB) is roughly 45 minutes. Milwaukee Mitchell (MKE) is about 90 minutes with rideshare or rental car options on arrival.
Lodging. The Hilton Garden Inn Oshkosh offers a "Green Medicine Rate" for our patients. Find the booking link in our Resources page.
Licensure note. Our providers are licensed in Wisconsin. Initial visits happen in person at our Oshkosh clinic. Phone and video follow-ups are available where state licensure permits. Our practice manager Kate confirms what is possible for your state when she calls to schedule.
What to expect
- Read this page. Decide whether Green Medicine is a fit. The FAQ below answers most questions.
- Complete the online intake. It takes 45 to 90 minutes. Have your current medications, supplements, and recent labs on hand.
- Pay the $200 deposit at the end of the intake. $100 is refundable if you cancel with at least 48 business-hours notice. The full $200 is applied to your first visit.
- We call you to schedule. Within 1 to 3 business days, our practice manager Kate reaches out to set your appointment and tell you what to bring. We also request records from your prior providers so you do not have to chase them down yourself.
- Come to your first visit. Arrive 15 minutes before your scheduled time so we can check you in without cutting into your provider time. Plan 3 to 4 hours total: 2 hours with your provider, 15 minutes for in-office labs, 40 to 60 minutes with our RN reviewing your individualized treatment plan, plus checkout. Bring every current medication and supplement, in their original containers, plus any recent labs from other providers.
- Follow-up cadence. For Lyme and chronic-illness patients, follow-ups generally run every 8 weeks. Cadences for hormone, longevity, and other tracks vary. Consistent follow-up is how the program actually works.
Pricing transparency
Most patients consider this an investment in finding answers.
We are a cash-pay practice. We do not bill insurance directly. We provide a superbill after each visit, and patients with commercial insurance may submit it for possible out-of-network reimbursement.
| Item | Cost |
|---|---|
| Initial appointment (2-hour office visit) | $710 |
| Deposit (applied to first visit) | $200 |
| Typical first-visit total including labs and supplements | $2,000 to $2,200 |
| Follow-up visits | $300 to $400 |
Payment methods: cash, check, credit card, HSA, FSA. HSA and FSA reimbursement may require a Letter of Medical Necessity for some services and supplements. We can provide one on request.
Medicare, Medicare Supplemental, Medicaid, CHIP: Green Medicine is not enrolled with these programs and cannot submit claims. These programs do not reimburse patients for services from non-enrolled providers, so a superbill cannot be used the way it can with commercial insurance. Patients with these as primary coverage are welcome to see Evelyn Andersen on a private-pay basis. Jamie Lorrigan is not able to see patients whose primary coverage is Medicare, Medicare Supplemental, Medicaid, or CHIP. Please tell us your coverage type on the intake form before scheduling.
Supplements are not refundable or exchangeable. Please review ingredients before purchasing if you have allergies or sensitivities. Educational handouts listing ingredients are available for every supplement.
Who we are a good fit for
If you have been told your symptoms are not real or not treatable, you are exactly the patient we built this clinic for.
We work best with two kinds of patients.
People who have not gotten answers from conventional medicine and who want a root-cause, multi-month approach. Lyme and tick-borne illness, mold and CIRS, long COVID, hormone imbalance, thyroid disease, autoimmune conditions, chronic fatigue, fibromyalgia, chronic pain, gut and metabolic dysfunction.
People who feel well and want to invest in longevity, vitality, and anti-aging. Hormone optimization, metabolic health, performance, and prevention.
Every patient maintains a separate primary care provider for routine care, urgent issues, and emergency coverage. We are not a fit for same-week urgent visits or one-and-done consultations. We have high expectations of our patients. Consistent follow-through on the plan is required for the relationship to work.
We work best with patients who want depth over speed.
After your first visit
After your initial appointment, the best way to ask a question or leave a message for your provider is to call the office, or message the nurses via Patient Fusion. Because the providers are with patients all day, they will likely not see a message sent to them in a timely fashion. Our skilled nurses are an extension of our providers and will be able to triage questions for the providers in a much more timely manner. To reach our nursing team, dial (920) 651-3600 and select option "2" for the nurses.
Prescription refills take up to 5 business days to process. Please plan ahead. If you are on a thyroid or bioidentical hormone prescription, labs are required a few weeks to months after any dose adjustments. Refills will not be provided if appropriate labs have not been completed.
Supplement refills. Order from the website or call the office. Pick up in office or arrange shipping (USPS, fees apply). We ship only to permanent or long-term addresses. Allow one week for mailed orders.
Frequently asked questions
Do you take insurance?
We are cash-pay. We provide a superbill after each visit for commercial insurance. Medicare, Medicaid, and similar programs do not reimburse out-of-network providers, so a superbill will not work with them. See Pricing transparency above for the full coverage breakdown.
What if I am out of state or out of the country?
We accept new patients from anywhere in the United States and have seen patients internationally. All patients see us in person in Oshkosh for the initial visit and most follow-ups. Our providers are licensed in Wisconsin, so ongoing care after the in-person visit may involve travel back to the clinic. Telehealth and phone follow-ups are available where state licensure permits. Our practice manager Kate confirms what is possible for your state when she calls to schedule.
What conditions do you commonly see?
Two groups. People with conditions that have not responded to conventional care (Lyme and tick-borne illness, mold and CIRS, long COVID, hormone imbalance, thyroid disease, autoimmune conditions including rheumatoid arthritis, chronic fatigue, fibromyalgia, chronic pain, gut and metabolic dysfunction, asthma), and people without an active diagnosis who want to optimize for longevity, hormone health, and prevention.
Who are the providers?
Evelyn Andersen, MSN, APNP, FNP-C, CISSN, ABAAHP, FAAMM, and Dr. Jamie Lorrigan, DNP, APNP, ACNPC-AG. Dr. Kevin Green, MD is our collaborating physician and medical director.
What kind of training do your providers have beyond nursing school?
Both Evelyn and Jamie are licensed nurse practitioners with conventional clinical training, plus extensive integrative training. Influences and credentials include the Institute for Functional Medicine, Metabolic Fitness with Dr. Bryan Walsh, circadian and mitochondrial work in the Dr. Jack Kruse lineage, the American Academy of Anti-Aging Medicine (A4M), ILADS for Lyme and tick-borne illness, and RMDY Collective for homeopathy.
How long until my first appointment?
Our new patient appointments are usually booking out about 3 to 4 months, sometimes longer during peak tick season. Our appointments are booked in the order that new patient intake forms are received, so please keep that in mind when completing your packet.
A note on urgent or acute care: we are not an urgent care clinic. For an acute tick bite, see the What if I have an acute tick bite right now? question below. For any other acute situation, please contact your primary care provider, urgent care, or the emergency department.
What if I need to cancel or reschedule?
Initial appointment: 48 business-hours notice keeps $100 of your deposit refundable. With less notice, the full deposit is retained. Follow-ups: 24-hour notice is required, with a $50 last-minute cancellation fee otherwise. Emergencies and illness are handled case by case. If 2 follow-ups in a row are canceled and rescheduled, we ask for prepayment before the next reschedule.
Can I bring labs from another doctor?
Yes, please. Upload them in the intake form, or bring printed copies to your first visit. We routinely review labs from primary care providers, specialists, hospitals, and direct-to-consumer testing. Bringing what you have often saves you money and lets us avoid duplicate testing.
Where do labs get drawn?
Most draws happen at our clinic. See Labs and testing above for the full breakdown, including specialty kits and using Health Labs for insurance billing.
Why so much testing for some patients, and so little for others?
Because we test with purpose. If a test will not change what we do next, we usually do not run it. When we do run a panel, we plan to act on what it shows. In chronic illness in particular, the work is often about figuring out what to take away, not just what to add.
Do you do telehealth?
Initial visits happen in person at our Oshkosh clinic so we can run in-office labs, electrocardiogram, and the full workup. Phone and video follow-ups are available where state licensure permits.
What if I cannot complete the online intake?
Email or call us at the numbers below and we will send a paper packet you can return by mail, fax, secure upload through Patient Fusion, or drop-off.
Why do you require a primary care provider?
Green Medicine is an integrative and functional medicine clinic, not a primary care home. Every patient maintains a separate PCP for routine care, urgent issues, and emergency coverage. The intake form asks for your PCP's name and phone number. You will be referred back to your PCP for acute issues such as strep throat, sinus infections, and UTIs.
What if I have an acute tick bite right now?
Our dedicated acute tick bite consultation service is in development. In the meantime, call (920) 651-3600 during clinic hours and tell us it is an acute exposure, and we will let you know what we can offer. For severe symptoms (high fever, severe headache, facial drooping or paralysis, chest pain, confusion), call 911 or go to your nearest emergency department.
Still have questions?
Email admin@gmofwi.com or call (920) 651-3600. Hours: Monday through Thursday, 8 a.m. to 4 p.m. Central. Closed Friday.
Address: 1259 W. 20th Avenue, Oshkosh WI 54902. Our office is in the front portion of the first airplane hangar housing Max/Pax Air, on the south side of 20th Avenue.
Information on this page is general; nothing here constitutes medical advice or establishes a patient-provider relationship until you have completed intake and been accepted as a patient. Statements about supplements, homeopathic remedies, and integrative therapies on this page have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease.