Peptide Therapy and GLP-1 Medications in Oshkosh, Wisconsin

Peptide therapy and GLP-1 medications, including semaglutide and tirzepatide, are prescribed at Green Medicine of Wisconsin case by case, after an evaluation of your history, medications, and labs, and only to patients of the practice. Care is in person at our Oshkosh, Wisconsin clinic with licensed nurse practitioners. Nothing is sold from a menu. New patients start with our intake.

Green Medicine of Wisconsin was prescribing peptides long before they became an internet trend. That experience is why we approach them the way we do: as one carefully chosen tool inside a personalized plan, discussed at a visit and prescribed under the guidance of a practitioner who knows your history.

What peptides are

Peptides are short chains of amino acids, the building blocks of proteins, and many of them act as messengers in the body. Some peptide medications are FDA-approved drugs for specific uses. Many others discussed online, including compounded peptides, are not FDA-approved, and the regulatory status of some continues to change. We keep up with that so you do not have to.

How peptide therapy is handled here

• Peptides are discussed at a visit, not sold from a menu.
• Anything prescribed is chosen for you, within a personalized plan informed by your history, your goals, and appropriate testing.
• Compounded peptides we prescribe are prepared only by our partner compounding pharmacies, which are 503A licensed, and only for compounds we consider low risk.
• Peptide therapy is always part of a broader plan, and your practitioner recommends it only where it fits your situation.

Who it is for

Peptide therapy here is for adults who want expert, practitioner-led care. It is often a fit for people who are already working on the foundations of their health, such as sleep, nutrition, and movement, and who want to know whether a peptide has a reasonable place in their plan. It builds on that foundation rather than replacing it.

GLP-1 medications: semaglutide and tirzepatide

Semaglutide and tirzepatide are GLP-1 medications, a class of peptide-based prescriptions. At our Oshkosh, Wisconsin clinic, a practitioner may prescribe one of them for some patients, case by case, after an evaluation of your history, your medications, and your labs. That decision is revisited at follow-up visits.

A GLP-1 is one tool, not a program on its own, and it is considered only within a practitioner-led plan built around your whole history. Like any prescription, they have side effects and are not appropriate for everyone, so they are prescribed only after a visit and monitored closely along the way.

Brand-name versions of semaglutide and tirzepatide are FDA-approved for specific uses in specific adults. Compounded versions are not FDA-approved. Which option, if any, makes sense for you is part of the conversation at your visit.

What you can expect

A careful, unhurried conversation with a practitioner who knows your history, a clear explanation of any option we recommend, and a plan that is revisited as you go. If a peptide is not the right fit for you, your practitioner will say so and help you find the path that is.

Your providers

Peptides and GLP-1 medications here are prescribed by our nurse practitioners, Evelyn (Evey) Andersen, MSN, APRN, FNP-C, and Dr. Jamie Lorrigan, DNP, APRN, both licensed in Wisconsin with prescribing authority. Evelyn is certified in IV and peptide therapy through the American Academy of Anti-Aging Medicine (A4M), and Jamie is an adult acute care nurse practitioner. Meet them on Our Team.

Becoming a patient

Peptide therapy and GLP-1 medications are offered only to patients of the practice. New patients start with an intake so we can understand your history before your first visit. Our schedule often books out a few months, so it is worth starting sooner rather than later. You can see the full range of tools we use on Our Services, including hormone care and IV therapy.

Become a Patient

Or call us at 920-651-3600.

Frequently asked questions

Which peptides do you offer?

We prescribe peptides case by case, including the GLP-1 medications semaglutide and tirzepatide. Which peptides are appropriate depends on your situation and on the current regulatory status of each one, and we go over the options at your visit.

Where do your compounded peptides come from?

Compounded peptides we prescribe are prepared only by 503A licensed partner compounding pharmacies, and only for compounds we consider low risk.

Do you prescribe semaglutide or tirzepatide?

For some patients, a practitioner may prescribe semaglutide or tirzepatide, case by case, after an evaluation and with follow-up. It is one part of a personalized plan, not a standalone program.

Are peptides and GLP-1 medications FDA approved?

Some are. Brand-name semaglutide and tirzepatide are FDA-approved for specific uses in specific adults. Compounded versions, and many peptides discussed online, are not FDA-approved. We will walk you through the status of anything we suggest.

Are they safe?

Every prescription starts with screening, a review of your history and medications, and a plan for follow-up. Like any medication, peptides and GLP-1 medications can have side effects and are not appropriate for everyone, and your practitioner will go over this with you at your visit.

Do you see patients outside Wisconsin?

Yes. We welcome patients from across the country and have cared for patients internationally. Your visits happen in person at our Oshkosh, Wisconsin clinic, since our providers are licensed in Wisconsin, and many patients travel in for care. Phone and video follow-ups are available where state licensure permits.

How much does it cost?

Peptides and GLP-1 medications are not priced or sold online. Costs are discussed at your visit and depend on your plan. Clinic visit pricing is on our Become a Patient page.

Care at Green Medicine of Wisconsin is provided by Evelyn Andersen, MSN, APRN, FNP-C, and Dr. Jamie Lorrigan, DNP, APRN. Page updated September 30, 2026.

These statements have not been evaluated by the FDA. Nothing on this page is intended to diagnose, treat, cure, or prevent any disease. Peptide therapy and GLP-1 medications are offered only as part of a personalized plan under the guidance of our providers.