Before you come in
Save your place in line before you leave the house.
Choose a reason for your visit and an arrival time, then confirm your details on NextPatient. Prefer to just show up? Walk-ins are welcome any time during office hours.
If you are experiencing a medical emergency, call 9-1-1.
Plan your visit
What to know before you come in.
Hours
Monday – Sunday, 8:00 a.m. – 8:00 p.m.
Walk in any time during office hours, or check in online first.
Billing and insurance
We bill as a primary care provider, not an urgent care clinic. In most cases, that means a lower copay. We accept most private and state insurance plans, including Medicare and Medicaid.
Providers
Book with a provider in Johnston.
Physician Assistant
Mary Carr Peterson
PA-C
Now accepting primary care patients in Johnston
Mary Carr Peterson, PA-C, has practiced family medicine and urgent care since 2004 and is accepting primary care patients at DoctorsNow in Johnston.
View full bio
Patient reviews
What patients say about our Johnston clinic.
★★★★★
“Everyone I met from the front desk, to the nurse, to the PA were friendly, kind and caring. Some of the best medical care I’ve received. I highly recommend the Johnston, IA location.”
Robert G.
Google review
★★★★★
“I recommend making an appointment as it kept the waiting time minimal. Super easy to do on their website. They were so personable and really listened to my concerns.”
Shannon T.
Google review
★★★★★
“Mary provided excellent care to me as a person and as a patient. She took the time to treat me & exhibited a genuine interest in helping me get well.”
Kent P.
Google review
No. Walk-ins are welcome at all three of our clinics. You can also check in online before you come in to save your place in line.
All three clinics are open Monday through Sunday, 8:00 a.m. to 8:00 p.m.
Call the phone number on the back of your insurance card to verify coverage. Our office bills as a primary care clinic. Our office NPI number is 1649394503.
Yes, we accept self-pay patients. Payment is due at the time of service.
We will need to know which Medicaid insurance you have (Molina, Iowa Total Care, or Amerigroup), as well as your ID number and your Social Security Number.
You may walk in for your drug screen or book online. Drug screens are performed until two hours before the clinic closes.
Yes. We can perform a virtual visit to assess you. After consulting with a provider virtually, we can schedule drive-up testing for minor respiratory infections (influenza, COVID, strep throat) from your car.
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