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Specialties
Board Certification
American Board of Internal MedicinePatient Rating
5.0 /5( out of 114 reviews )The patient rating score is an average of all responses on our patient experience survey. The rating averages scores for all questions about care from our providers.
The scale on which responses are measured is 1 to 5 with 5 being the best score.
Patient Comments
Patient comments are gathered from our patient experience survey and displayed in their entirety. For the convenience of our visitors, some patient comments have been translated from their original language into English while preserving their original meaning as accurately as possible. Patients are de-identified for confidentiality and patient privacy.
December 29, 2025MADSEN HEALTH CENTERCoy, MD is amazing, knowledge, carrying and kind. I am lucky to find her.
December 25, 2025MADSEN HEALTH CENTERThis was my first visit with Dr. Coy. She will now be my Primary Care Physician. She seems genuinely interested in my care and explained everything really well.
December 19, 2025MADSEN HEALTH CENTERDr. Coy was very caring, knowledgeable, and thorough. She gave me all the time I needed to explain my medical history and she made practical suggestions to improve my health.
December 17, 2025MADSEN HEALTH CENTERDr. Coy was patient and address all of my concerns. Excellent visit!
December 14, 2025MADSEN HEALTH CENTERDr. Coy is competent, professional, and kind. I appreciate Dr. Coy's clear communication style and ability to make potentially uncomfortable situations manageable.
December 12, 2025MADSEN HEALTH CENTERListens carefully to what I say and provides excellent solutions to any health issues I may have.
December 11, 2025MADSEN HEALTH CENTERSo glad Dr. Coy took me on as a patient
December 09, 2025MADSEN HEALTH CENTERExcellent care
November 27, 2025MADSEN HEALTH CENTERDr. Coy and marina were both so kind, compassionate, competent and made me feel like their only patient. Wonderful experience
November 27, 2025MADSEN HEALTH CENTERDr. Coy is most sensitive. Cares I feel, about my well being. Like her. Asst Marina is most wonderful. She listens, takes action and communicates very well.
November 16, 2025MADSEN HEALTH CENTERAllie was absolutely fantastic! She listened, was caring and thoughtful.
October 29, 2025MADSEN HEALTH CENTERDr. Coy is very competent and caring. Very nice bedside manner!!
October 29, 2025MADSEN HEALTH CENTERGreat
October 29, 2025MADSEN HEALTH CENTERDr Coy is a great listener, well informed about the pros and cons of certain treatment, and trouble-shoots well.
October 20, 2025MADSEN HEALTH CENTERVery compassionate and thorough!
October 15, 2025MADSEN HEALTH CENTERExcellent, caring, knowledgeable professional.
October 06, 2025MADSEN HEALTH CENTERFriendly, competent, empathetic, warm, takes time for her patients!
October 06, 2025MADSEN HEALTH CENTERDr. Coy is empathetic, attentive and knowledgeable.
October 02, 2025MADSEN HEALTH CENTERShe is kind, thorough and knows her stuff
September 29, 2025MADSEN HEALTH CENTERI find Dr. Coy empathetic. She listens, she explains. She is timely. I've been to see her 3 times so far and have felt this way each time. I feel fortunate to have her as my PCP.
September 18, 2025MADSEN HEALTH CENTERShe was more than excellent I feel very confedent and I thank you and your team
September 18, 2025MADSEN HEALTH CENTERI highly recommend Allie Elizabeth Coy, MD and Marina, her medical assistant for a great team for be associated with for your good health and well being!
September 18, 2025MADSEN HEALTH CENTERDr. Coy is a very caring, intelligent primary care provider who is responsive and delivers great care. Listens well, is available.
September 18, 2025MADSEN HEALTH CENTERShe was very concerned.
September 17, 2025MADSEN HEALTH CENTERShe was not prepared for my appointment. She was more than 30 minutes late. She had to look up what my test results mean in real time in front of me. This doesn't instill confidence.
September 11, 2025MADSEN HEALTH CENTERShe is a very good doctor. She is friendly, kind and very good at explaining the care you need.
August 21, 2025MADSEN HEALTH CENTERProfessional, knowledgeable and caring
August 12, 2025MADSEN HEALTH CENTERDr. Coy is fantastic, and I'm so grateful to have her as my primary care provider. She is sincere and genuinely cares about my well-being, oftentimes asking me questions that dive deeper into my symptoms and show her level of concern. I highly recommend that you place her in charge of your internal medicine care.
August 11, 2025MADSEN HEALTH CENTERDr Coy is a wonderful doctor. I recommend her 100%.
August 07, 2025MADSEN HEALTH CENTERCompetent and efficient
August 04, 2025MADSEN HEALTH CENTERDr. Coy is very caring and patient.
August 04, 2025MADSEN HEALTH CENTERFriendly and very attentive
July 04, 2025MADSEN HEALTH CENTERSeeing first time with out appointment yes she is awesome Dr. and a person
June 21, 2025MADSEN HEALTH CENTERMy 20+ year doctor retired and I was anxious about going to a new physician and a new office. Dr. Coy was so great, I am excited to call her my new doctor and have much faith I have landed is a great new practice for my health!
June 14, 2025MADSEN HEALTH CENTERDr. Coy is attentive and thoughtful in her approach to care'
June 09, 2025MADSEN HEALTH CENTERLovely, common sense, a very good doctor. She takes her time and gives the best advise. I liked her from the get go after my doctor retired and we were introduced at the beginning of this year.
June 09, 2025MADSEN HEALTH CENTERThis was my first visit. I was impressed with her kindness and professional manner. I know I shall be well taken care of. Thank you
June 02, 2025MADSEN HEALTH CENTERDr. Coy is patient and kind and an excellent listener. I feel she understood my concerns and allowed space for me to be part of the decision making process.
June 01, 2025MADSEN HEALTH CENTERDr. Coy was thorough and understanding.
May 23, 2025MADSEN HEALTH CENTERDr. Coy and her MA/nurse (can't recall her name) So kind.
May 15, 2025MADSEN HEALTH CENTERDr. Coy is incredibly knowledgeable, friendly, and professional. Dr. Coy put me at ease during my visit, and collaborated with me to determine the best way forward with my health decisions.
May 11, 2025MADSEN HEALTH CENTERDr. Coy listened to me and was open to discussing my specific concerns and providing advice, in addition to providing general recommendations. I had a great first experience with her as a healthcare provider!
May 10, 2025MADSEN HEALTH CENTERI have very much the choice I made in choosing Dr Coy .
May 01, 2025MADSEN HEALTH CENTERDr. Coy is amazing! This was my first visit and she made me feel at ease and comfortable immediately. I am thrilled she is my doctor!
April 30, 2025MADSEN HEALTH CENTERDr Allie Coy is an excellent and caring Doctor!!! I recommend her highly!!!
April 28, 2025MADSEN HEALTH CENTERDr. Coy was very easy to communicate with, very focused on what my symptoms and concerns were and I felt I was getting excellent care and advise. Dr. Conroy is my physician but was not available to see me that same day (symptoms were so bad I needed to be seen). I felt confident in the referral and the treatment.
April 24, 2025MADSEN HEALTH CENTERVery helpful and kind.
April 09, 2025MADSEN HEALTH CENTERDr. Coy is so kind and I appreciated the fact that she looked through my medical chart to know more about me. I felt like she listened to me, supported me and was so positive in our appointment.
April 07, 2025MADSEN HEALTH CENTERI recommend Dr. Coy highly. She made me feel listened to and cared for.
April 06, 2025MADSEN HEALTH CENTERDr. Coy instills confidence with her professional, friendly manner and broad knowledge.
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Board Certification and Academic Information
Academic Departments Internal Medicine -Assistant Professor (Clinical)
Academic Divisions General Medicine
Board Certification American Board of Internal MedicineEducation history
Internship/Residency Internal Medicine - MercyOne Hospital Resident Professional Medical Medicine, Bioethics Certification - University of South Dakota Sanford School of Medicine M.D. Graduate Training Biomedical Science Neurobiology - Colorado State University M.S. Undergraduate Kinesiology and Health, Minor in Spanish - Iowa State University B.S. Selected Publications
Case Report
- Fiegen AP, Tjarks BJ, Ferguson TJ, Goetz RA, Ladd AE, Tams KC (2018). Coexistent Alpha-1 Antitrypsin Deficiency and Hereditary Hemochromatosis. S D Med, 71(3), 126-128. (Read full publication)
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