Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. William D Harris, DO

Individual provider Internal Medicine Physician · NPI 1144200536

Dr. William D Harris, DO is an Internal Medicine in Topeka, Kansas. Graduated from Kansas City University of Med & Biosciences, College of Osteo Med in 1982, 44 years ago. Practices with Cotton-O'Neil Clinic Revocable Trust, a 658-clinician group and accepts Medicare assignment. Licensed in Kansas.

Years since qualifying
44
Trained at
Kansas City University of Med & Biosciences, College of Osteo Med
Licensed in
KS
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

823 SW Mulvane St
Topeka, KS 66606-1764
Phone: (785) 354-9591
Fax: (785) 368-0735
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 0523845 (KS)

Record details

NPI number1144200536
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJanuary 20, 2006
Last updated in NPPESJanuary 23, 2025
Certification dateJanuary 23, 2025
Mailing address823 Sw Mulvane St, Topeka, KS 66606-1764

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolKANSAS CITY UNIVERSITY OF MED & BIOSCIENCES, COLLEGE OF OSTEO MED
Graduated 1982 (44 years in practice)
Group practice Cotton-O'Neil Clinic Revocable Trust — 658 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations10 on file with Medicare

Other providers in Topeka