Medical Weight Loss


How does OnCall Weight Loss Work?

Step 1

Book Appointment

A Support Specialist will help you get started.

Step 2

Meet Your Care Team

During your first visit we will review your labs, set goals and create an individualized weight loss plan.

Step 3


Make small changes and complete short term goals to develop healthier habits and weight loss success.

Questions? Contact our office and speak to a member of our Nursing Staff. 

How much do you charge?

  • Join


    Includes establishment visit, labs review & initial assessment with provider.

  • Monthly


    Includes all check in visits & followup assessments with your provider(s).

  • Vitamins & Supplements

    Based on provider recommendation.

What forms should I complete before my first appointment?

Before your initial appointment, we need to collect the following forms:

Program Director

Wendy Markovich, MSN-FNP

Wendy is a board certified Family Nurse Practitioner. She has been in practice for over 15 years specializing in pain, primary care and weight loss. She completed her undergraduate studies at Creighton University in Omaha before moving to Connecticut to complete her Masters degree. She worked as a Nurse Practitioner in Connecticut for three years before moving to Arizona. In 2008 Wendy opened her own medical practice and was successful for over 9 years. In 2016, Wendy transitioned into telemedicine which gives her the flexibility to work remotely and spend more time at home with her family.

Why join OnCall?

People love OnCall for many reasons including...

  • Flexible Scheduling

  • Friendly Professional Staff

  • Convenient Online Appointments

  • Quick Access To Your Provider

  • Upfront Affordable Pricing

  • No Germy Waiting Rooms or Commutes

  • Save Time & Money​

  • Results

Still not convinced? Don't take our word...Read our Reviews

What are people saying about OnCall?


Where is OnCall Weight Loss Available?

OnCall Weight Loss is welcoming new patients in Arizona, Colorado an Idaho.


Please check back soon for availability in Alaska, Connecticut, DC, Maine, Nevada, New Hampshire, New Mexico, Rhode Island, Vermont and Washington. 

About Us

Many struggle with weight and healthy eating including your healthcare professionals. OnCall Weight Loss started as a trial program to help our staff, family and friends lose weight, feel better and live healthier. We wanted to create a program which is easy to understand, easy to follow and therefore easy to stick with. 


If you're someone who wants to lose a little weight, needs to lose a lot or maybe you just want to feel better, we welcome you to join in with our staff, friends and family on our weight loss journey. Our goal is to be an example of how small changes and short term goals can lead to healthier lifestyle habits and lasting weight loss results. 

Not ready to join? Follow our group and see the results.


Contact Us 

OnCall Weight loss

Hours: M-F 9am - 5pm MST

Video Call

Fax Number (888) 518-4950


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© 2020 by OnCall Weight Loss, LLC