Contact Us

Karl Zimmerman, M.D.
127 W Street Rd #101
Kennett Square, PA 19348

Main Phone: (610) 444-1212
Fax: (610) 444-3633

Office Hours
Monday: 9-5
Tuesday: 9-5
Wednesday: 9-5
Thursday: 9-5
Friday: 9-5

  • For appointments, medical records, labs, prescription refills, or general requests call (610) 444-1212.
  • If you are a Privia Member, you may request prescription refills, request appointments, access your personal health record, or send a secure message to your doctor by Logging in to your member website.
  • For questions regarding our Privia Membership Practice, call (888) 774-8428 or email Privia at

Emergencies/After Hours: For life threatening emergencies call "911" or proceed to the nearest emergency department. Please call our office number (610) 444-1212 for urgent after hours medical concerns. The answering service will page the doctor on call. If you have not received a return phone call within 30 minutes then call the answering service again and request to have the doctor re-paged. Prescriptions and prescription refills will be addressed during regular business hours only and will not be addressed by the answering service.