Peter Edwin Lantz, MD

Sandra Loughmiller 

on Google

3 weeks ago

My experience with Dr. Peter Lantz had consequences that continued long after I was no longer his patient. It is now September 2026, a full year later, and I am still dealing with the consequences of decisions he made about my care. When I originally went to Dr. Lantz, I was not experiencing a medical crisis. I was trying to see a specialist for conservative therapy and exercises, not medication or treatment from him. Although my insurance did not require a referral, the specialist's office did, and Dr. Lantz would not provi... read more

Linda Williams 

on Google

2 months ago

Wonderfully kind and caring physician. 

Donna Anderson 

on Google

11 months ago

I could not be more pleased with Dr. Lantz and his team at Warren Clinic Internal Medicine. I continue to be responded to and seen quickly with professionalism, complete attention to me, and kindness from making my appointment to diagnosis and prescribed solutions. Special thanks, too, to Sandie and Rhonda, whose thoughtful assurance helped me feel relaxed and supported. I am so very happy I chose Dr. Lantz to be my primary care physian. I know I am in good hands. 

Rhonda Whitlock 

on Google

a year ago

Just wow. Professional, competent, kind, thorough. Office staff ALL friendly (rare nowadays), especially his assistant. Exceptionally clean, timely, and efficient. Highly recommend office. As someone that unfortunately has had to see her share of doctors since 12, Dr. Lantz was a breath of fresh air for my husband and myself. FINALLY an internist that knows his stuff! 

Frankie Sawyer-Itene 

on Google

a year ago

I've no issues with Dr Lantz, it's his nurse and office manager who have proven to be unethical and heartless. I was seen once and dismissed afterwards with no delivered notice or explanation.The Office Manager did not return my call as expected, and the Dr's assistant is the typical mean, unhappy medical office employee. I expected more from St Francis Employees.