Quick Care banner

Petoskey Quick Care
231-348-2828GPS Navigation

Mon - Fri  8:00am - 6:00pm

Sat & Sun 9:00am - 4:00pm


116 West Mitchell Street
(across from Mancino's)
Petoskey, MI   49770

Quick Care (located in Petoskey and Boyne City), serving Northern Michigan, is a family practice and urgent care center directed by Dr. Gustav Lo. Quick Care has it’s own x-ray, ultrasound, lab and minor surgery suite, so you usually won’t drive elsewhere for more tests or treatment. All of these services are provided on site with immediate results. We treat 90% of all urgent medical problems… ALL but life-or-limb threatening conditions.


  • High blood pressure
  • Diabetes
  • High cholesterol
  • Depression and Anxiety
  • Skin conditions
  • Skin cancer


  • Kidney & urinary infections
  • Intestinal problems
  • Flu & bronchitis/pneumonia
  • Sinus problems, Asthma & allergies
  • Sore throat/strep throat
  • Skin infections
  • Swimmers itch, bites/stings, rashes

Preventive Health

  • Comprehensive physical exams
  • Sports physicals
  • Screening for high cholesterol
  • Metabolic testing
  • Weight management
  • Smoking cessation


  • Sprains
  • Fractures
  • Joint Injections
  • Dislocations
  • Cuts
  • Burns

Our Providers

Dr. Gustav Lo

Dr. Gustav Lo is the Medical Director of Quick Care Walk-In Medical Center. Established in 1990, Quick Care has grown into an established primary practice, with locations in Petoskey and Boyne City, focusing on family practice, urgent care, and occupational medicine. Dr. Lo has degrees from both the University of Michigan and Michigan State University, and has been practicing medicine for almost 30 years. He has served on the National Asthma Education Advisory Panel as well as being a sought-after speaker for Schering-Plough, Glaxo-SmithKline, Wyeth-Ayerst, and Pfizer. His personable bedside manner and wealth of experience are second to none in the community.

Marisa Rhein, FNP

Marisa  joined our knowledgeable team at Quick Care in 2015 following her position as a Critical Care R.N. at St. John Macomb Hospital. Her selfless and kind disposition fueled her passion for assisting any individual in need of chronic care and disease management. Simultaneously, she offers her authoritative knowledge in both preventive measures and immediate medical care. Her education includes a Bachelor of Science degree in Health Fitness & Rehabilitative Programs from Central Michigan University in 2007 followed by a second Bachelor degree (this time in Nursing from Detroit Mercy) in 2009. In 2014, she obtained her Masters and Family Nurse Practitioner degrees. A traveling and outdoors enthusiast, outside of the office you can find Marisa snowboarding, hiking, practicing yoga, or cheering on the MSU Spartans.

Natalie Olendorf, FNP

Natalie joined our medical staff at Quick Care Family Medical Center in 2013. She graduated from the University of Illinois of Chicago and specializes in pediatrics & family practice. Natalie comes to us from Community Health Center of Northern Michigan here in Petoskey where she practiced for three years. We’re excited for the care Natalie can provide to our patients.

Urgent Care

Whether it's a cut that needs stitches, a back or joint injury or anything else you need treatment for RIGHT NOW, Quick Care is always ready for your minor emergency. Our on-site x-ray, lab, and wound-care facilities offer more complete care for emergencies than a regular doctor’s office. Our providers are experts in wound care and closures (which means wherever the cut, we’ll fix it and make it look good). We also provide mini-surgical procedures like removing cysts, boils and skin lesions. 

Primary Care

Many people don't know that half of Quick Care's practice is Primary Care - our providers are the "family doctor" for over 2500 regular patients. We also offer discounts for our primary care patients with no health insurance (see below). Whether you have long-term medical conditions or shorter-term health problems, our medical providers are ready to help. We perform comprehensive physical examinations for work, school or general health prevention.

Make an Appointment

Many of our patients don’t realize that Quick Care isn’t just a walk-in clinic— we take appointments too! Of course, we’re always happy to see walk-ins, but if you have limited time, an appointment is best.

No Health Insurance?

Want to save money on your visit TODAY? Ask about our discount program for primary care patients and you can save up to 50% at Quick Care today and EVERY DAY AFTER!

Our Other Locations:


116 West Mitchell Street
(across from Mancino's)
Petoskey, MI   49770

Monday thru Friday
8:00am - 6:00pm

Saturday and Saturday

(231) 348-2828 - Phone
(231) 348-9609 - Fax