Blue Preferred Options-MO PPO
Dr. Colin Diffie, MD
Rheumatology*
Age 41
Dr. Colin Diffie, MD is a Rheumatologist in Saint Louis, MO.
Dr. Colin Diffie, MD
Saint Louis, MO
Accepting new patients
Dr. Colin Diffie, MD is a Rheumatologist in Saint Louis, MO.
About Dr. Colin Diffie, MD
Dr. Diffie graduated from
Explains Conditions Well
Patients said this doctor explains conditions well.
Trustworthy
Patients said this doctor is trustworthy.
Low Wait Times
Patients are usually seen in 10 minutes or less.
Friendly Staff
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Easy Scheduling
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Accepted Insurance Plans
* Please verify this information when scheduling an appointment.
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Choice POSChoice Care Network PPOChoice Care PPO
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Preferred Care Blue PPOBlue Card PPO
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First Health (Coventry Health Care) PPO
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AetnaOpen Choice PPOManaged Choice (Open Access) POSElect Choice (Open Access) EPOChoice Plus POS IISavings Plus of IL OA SelectPremier Care Network Plus - Innovation Health
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Blue Cross Blue Shield of Illinois PPOBlue Print PPO
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Alliance EPO
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Anthem Blue Cross Blue Shield PPO
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Navigate HMONavigate POSMedica ChoiceOptions PPOChoice Plus POSNexus Open Access
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Curative PPOCurative EPOCurative PPO Plus
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Open Access PlusCigna PPO
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Health Alliance PPO
Where Dr. Colin Diffie, MD Sees Patients
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Barnes-Jewish Hospital1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110
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Office4921 Parkview Pl Ste 5C, Saint Louis, MO 63110
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Imaging at Barnes-Jewish Center for Advanced Medicine-South County5201 Mid America Plz, Saint Louis, MO 63129
What Patients Say
Likelihood to recommend Dr. Diffie
5.0
Based on 1 Reviews
5 Stars (1)
4 Stars (0)
3 Stars (0)
2 Stars (0)
1 Star (0)
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Patient Reviews
Dec 07, 2025
Dr Diffie is very kind, knowledgeable, and takes his time during appointments. I have never felt rushed and he is always made sure to answer every question I asked regarding my visit. He is a very caring man.
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Meet Dr. Colin Diffie, MD
Specialties*
Internal Medicine
Rheumatology
- *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Does Dr. Diffie communicate via email?
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FAQs About Dr. Diffie's Practice
Find contact information here to make an appointment.
A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.
New patients are generally accepted by Dr. Colin Diffie, MD. To arrange an appointment, call the number on Dr. Diffie's profile.
Dr. Diffie in specializes in Rheumatology. See more on Sharecare.
Dr. Diffie frequently treats the following conditions: Systemic Vasculitis, Rheumatoid Arthritis, Temporal Arteritis, Joint Pain, Arthritis, Vasculitis, Systemic Sclerosis and Psoriatic Arthritis. See more on Sharecare.
Dr. Diffie's office is located at 1 Barnes Jewish Hospital Plz Saint Louis, MO 63110. You can find other locations and directions on Sharecare.
Dr. Diffie provides telehealth services. Please contact the office to determine whether you are eligible.
Dr. Colin Diffie, MD is affiliated with Memorial Hospital Belleville, Barnes Jewish Hospital and Parkland Health Center.
Yes, Dr. Colin Diffie, MD holds board certification in Internal Medicine and Rheumatology.
Dr. Colin Diffie, MD has a star rating of 5.0/5. See more patient feedback on Sharecare.
Training & Medical Education
Medical Education
- CONCORDIA COLLEGE AT MOORHEAD
Board Certifications
- Internal Medicine and Rheumatology
Hospitals Where Dr. Colin Diffie, MD Practices
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Memorial Hospital Belleville
4500 Memorial Dr, Belleville, IL
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Barnes Jewish Hospital
1 Barnes Jewish Hospital Plz, Saint Louis, MO
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Parkland Health Center
1101 W Liberty St, Farmington, MO
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