Practice Changes due to COVID-19

Starting Monday, April 13th the clinic will be closed for face-to-face visits. I will be available for tele-health visits from 9 am - 1 pm Monday - Thursday. Tele-medicine  appointment requests can be made by clicking on the banner at the top of the page. 

Supplement orders can still be mailed or you can use one of the home delivery options. Click the button below to be taken to the supplements page. 

COVID-19 Antibody Testing

Details of Testing:

Test for COVID-19 antibodies is now available at Healthy by Nature Family Wellness Clinic, LLC. 

This antibody testing confirms a PAST infection with IgG & IgM antibodies (ie. to determine if an illness you had several weeks or months ago was COVID-19 or not).

This test DOES NOT screen for active, current infection.  Do not come to the clinic if you are ill with possible COVID-19 symptoms. 

Cost: $159

Method: blood draw (whole blood, ELISA)

Lab: Diagnostic Solutions Lab

Preparation: none

Turn around time: unsure at this time, most tests are 7 - 10 days

Please call for a lab draw appointment if you would like to have testing done. 


Meet Lisa VanWatermulen, Family Nurse Practitioner


Welcome to Healthy by Nature!  I am Lisa VanWatermulen, owner and family nurse practitioner at Healthy by Nature Family Wellness Clinic, LLC. I offer my patients personalized medicine seeking the root cause to your symptoms and finding ways to help the body heal itself. I focus on a natural, holistic approach to healing with nutrition, herbals & homeopathic remedies as well as using conventional treatments as needed.

I allow for long appointments giving you adequate time to tell me about your health journey.  My goal is to know my patients very well, only then can we unlock the doors to optimal health! 

My areas of expertise  include digestive health & food allergies, autism, ADHD,

auto-immune conditions, hormone balance & thyroid disease. 

 I obtained both my graduate and undergraduate degrees from Minnesota State University, Mankato. I have been practicing as a nurse practitioner since 2005.  

Contact the office via phone or request to make an appointment today!

Lisa VanWatermulen, Family Nurse Practitioner

Lisa VanWatermulen, Family Nurse Practitioner

About Us

Healthy by Nature Family Wellness Clinic, LLC




 Healthy by Nature Family Wellness Clinic, LLC is an integrative, holistic medicine clinic in Lake Crystal, MN.  We see patients of all ages and utilize long appointment times to allow extensive medical history taking, physical exam findings, diagnostic testing, nutrition, and lifestyle changes to optimize health and well-being.   

Nutrition testing




Our mission is to give the patient a holistic approach to their health: body, mind and spirit.  Our goal is to find the root causes of your health symptoms and to stop or reverse the process to give you back your vitality.

 We want to offer you the advantage of a private practice with adequate appointment time & a positive customer experience. 

Functional Medicine is holistic health care.




 Healthy by Nature Family Wellness Clinic, LLC is located in Lake Crystal, MN about 15 minutes southwest of Mankato or 90 minutes southwest of the Minneapolis metro.  Our  office is in the Lake Crystal Chiropractic Building on the west side of Main Street.  Enter through the door on Robinson Street.

Typical hours of operation are 

Monday - Thursday 9 am - 5 pm. 

We are closed for all major holidays.

Frequently Asked Question

What to Expect

Common Conditions Treated

Insurance & Payment


  • new-patient appointment will take approximately 60 - 90 minutes. Please fill-out new patient forms prior to visit. 
  • Follow up visits are typically 30 minutes, longer if necessary. 
  • Most laboratory services can be done on site as we have a full laboratory.  If you prefer, an order can be issued for labs to be done at an outside facility that will process insurance for you. 
  • Diagnostic imaging is not done on site. For diagnostic imaging needs, we will issue an outpatient order or referral for it to be done at the institution of your choice. 
  • Pharmaceutical prescriptions can be sent to the patient's pharmacy of choice. 

Insurance & Payment

Common Conditions Treated

Insurance & Payment


  • We do not submit to insurance and payment for services provided is expected the day of service. 
  • An insurance claim summary with CPT and diagnosis coding can be issued to you to submit to insurance independently for reimbursement as an out-of-network claim.    
  • We are not a Medicare or Medicaid provider and do not bill or process claims to state or federal  Medicare programs. 
  • It may be beneficial to contact your insurance carrier to know what your policy will cover for out-of-network claims as every policy is unique. 

Common Conditions Treated

Common Conditions Treated

Common Conditions Treated


  • Digestive issues such as IBS, GERD, food allergies, bloating, abdominal pain, constipation & diarrhea
  • Hormone imbalances such as difficult menopausal transition, menstrual issues, thyroid disease & insomnia/sleep issues  
  • Chronic fatigue and fibromyalgia  
  • Autism & ADHD  
  • Immune issues such as allergies, asthma, chronic rashes, recurrent infections, and auto-immune conditions  
  • Managing cardiovascular risk factors & cholesterol particle testing  
  • Type 2 diabetes & blood sugar dysregulation

Privacy & Terms of Use

Your privacy is important to us at Healthy by Nature Family Wellness Clinic, LLC. You agree to these policies by virtue of using information at this website. Healthy by Nature Family Wellness Clinic, LLC uses a secure certified web host (SSL with the "lock" icon in the web address). 

Personal information collected will be limited to your name & email to be solely used as a method to communicate to you for communications, products or services for which you have chosen to sign-up. You name will become visible when interacting with social media posts related to Healthy by Nature Family Wellness Clinic, LLC posts and content. 

You must be 18 year or older to sign up to receive email from Healthy by Nature Family Wellness Clinic, LLC. Your personal information will not be shared or sold to third parties. 

Google may use cookies to collect analytical data such as your search location, time you accessed the website and what pages or search words were used. Links to other websites may be provided on this website, we are not responsible for the privacy policies of other websites. 

If you have questions or concerns you may call the clinic at 507-726-2626,