Write a review Your name* Your e-mail* (Not for publication) Rating ★★★★★ Excellent ★★★★☆ Very good ★★★☆☆ Average ★★☆☆☆ Poor ★☆☆☆☆ Terrible Your review * * — Required information Dr. Michael N Helfferich - Dayton ← View details 369 W 1st St, Ohio, Dayton, 45402, Dayton, Ohio 45402 9374962600