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Topeka Clinics:

Cotton-O'Neil Clinic–Croco Road

2909 SE Walnut Drive, Topeka, Kansas
(785) 267-0744

Kent Haverkamp, M.D.

Education and Training: MD '89, University of Kansas School of Medicine. Residency: Good Samaritan Medical Center and Phoenix Children's Hospital.
Board Certification: Internal Medicine; Pediatrics
Clinical Interests: preventative medicine and wilderness medicine
Office Location: 2909 SE Walnut Drive, Topeka, 66605
Office Phone: (785) 267-0744
Fax: (785) 266-3490

Ann Sachs, M.D.

Education and Training: MD '94, University of Kansas School of Medicine. Residency: University of Kansas School of Medicine, Kansas City.
Board Certification: Internal Medicine; Pediatrics
Office Location: 2909 SE Walnut Drive, Topeka, 66605
Office Phone: (785) 267-0744
Fax: (785) 266-3490

Jon E. Schroeder, M.D.

Education and Training: MD '95, University of Kansas School of Medicine, Kansas City. Residency: The University of Kansas School of Medicine, Wichita.
Board Certification: Internal Medicine
Office Location: 2909 SE Walnut Drive, Topeka, 66605
Office Phone: (785) 267-0744
Fax: (785) 266-3490

Melissa A. Schroeder, M.D.

Education and Training: MD '97, University of Kansas School of Medicine, Kansas City. Residency: The University of Kansas School of Medicine, Wichita.
Board Certification: Internal Medicine
Office Location: 2909 SE Walnut Drive, Topeka, 66605
Office Phone: (785) 267-0744
Fax: (785) 266-3490

Mark A. Thomas, M.D.

Education and Training: MD '90, University of the West Indies, Jamaica. Internship, Residency and Fellowship: Meridia Huron Hospital, Cleveland.
Board Certification: Internal Medicine
Clinical Interests: asthma and hypertension
Office Location: 2909 SE Walnut Drive, Topeka, 66605
Office Phone: (785) 267-0744
Fax: (785) 266-3490