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Welcome to PRISM Medical Group

Because we care

Did you know?  PRISM Medical Group offers safe, accurate, and convenient Covid-19 testing for our patients and the surrounding community.  Testing is available at PRISM Medical Group and Urgent Care in the WellPointe Building 1701 E South Blvd, Ste 150, Rochester Hills, MI 48307.  We offer PCR testing with 24-48 hour result turnaround.  Please call 248-853-6300 to set up an appointment.


Welcome to PRISM Medical Group’s website. Thank you for taking the time to visit. Our goal for this website is to provide information about our offices, our providers and our policies. If you are thinking about becoming a patient, we hope this helps you to make an informed decision about your place in our medical home. Take a look around, and visit often, as new information will be added regularly.

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Our Team

Meet the highly trained experts and specialists who make up PRISM Medical Group

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Patient Portal

The patient portal is an excellent way for you to communicate with your provider and to stay healthy

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Our Locations

Our state-of-the-art facility is ready to serve you. Find out about our offices and hours

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What Our Patients Are Saying

Dr. Kirtley is very knowledgeable and friendly. She is great with kids too. She does not rush through her check-ups.

Dr Hachigian is the most knowledgeable, caring & best doctor I have ever known!

Dr. Geiger is one of the best Drs I have seen. She is very committed to her patients. I have needed special help in the past and her staff is both prompt and knowledgeable.

[Dr. Bielawski is] my primary, and he's excellent - very responsive...and I have a 'boatload' of chronic problems to deal with.

Dr Bielawski is the BEST doctor you will ever find, and believe me I have been to lots of doctors.

Dr. Ortwine is wonderful!! She takes the time to really listen and gives thorough explanations. She is great about following up and after hours care.

Wonderful doctor. Very caring and I don't feel like he is rushing off to another patient. Takes his time to answer my questions.

Dr Buchanan really listens to my concerns, asks additional questions and provides the right treatment and referrals as needed. I trust him completely.

Our staff

Meet the team
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Crystal Ajja, DO
Physician
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Thomas Bering, MD
Physician
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Joel Buchanan, MD
Physician
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Brittany Derra, DO
Physician
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Mara Geiger, MD
Physician
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Todd Hachigian, MD
Physician
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Kelly Ortwine, MD
Physician
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Cordell Yoder, MD
Physician
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Kaitlyn Arcori, PA-C
Physician Assistant
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Jeanette Bacci, NP
Nurse Practitioner
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Danielle Carr, PA
Physician Assistant
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Jessica Delia, NP
Nurse Practitioner
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Rachel Hinds, NP
Nurse Practitioner
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Sarah Lauro, NP
Nurse Practitioner
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Amelia Mancini, PA
Physician Assistant
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Clare Maclean, NP
Nurse Practitioner
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Alexandra Skerske, NP
Nurse Practitioner
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Natalie Steflja, NP
Nurse Practitioner
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Gabriela Bering, RD
Registered Dietitian
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Kim Carlson, PharmD
Pharmacist