William D. Harris, DO
Internal Medicine Physician · Topeka, KS
William D. Harris, DO is an internal medicine physician with a practice address in Topeka, Kansas, and NPI 1144200536, issued on Jan 20, 2006. Check the license (Kansas 0523845, as entered in NPPES) on the Kansas State Board of Healing Arts; the Medicare figures below come from public CMS files.
- Name
- William D. Harris
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 0523845 KS
Self-reported in NPPES; status is on the state search - Practice location
- 823 SW Mulvane St, Topeka, KS 66606
- Phone
- (785) 354-9591
- Enumerated
- Jan 20, 2006
- Record last updated
- Jan 23, 2025
- Fax
- (785) 368-0735
- Medicaid ID
- 100347660E KS
- Medicare enrollment
- Enrolled (PECOS I20050610000395); accepts Medicare assignment
- Medical or professional school
- Kansas City University Of Med & Biosciences, College Of Osteo Med, 1982
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,010 in Kansas → Look up another NPI →
Also registered at 823 SW Mulvane St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Michelle Andrews, CRNACertified Registered Nurse Anesthetist1023087210
- Martha Badger, APRNNurse Practitioner1891045779
- Brinton Baker, PA-CPhysician Assistant1649586470
Verify William D. Harris in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersKansas State Board of Healing Arts
Search for license 0523845Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% more Medicare Part D claims than the average internal medicine physician in 2024
5,810 Medicare Part D claims for 490 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 17 claims were for opioids.
Most prescribed
- Levothyroxine Sodium507 claims
- Simvastatin338 claims
- Atorvastatin Calcium280 claims
- Amlodipine Besylate265 claims
- Lisinopril236 claims
- Omeprazole184 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Cotton-O'Neil Clinic Revocable TrustTopeka, KS
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William D. Harris among 1,010 internal medicine physician records in Kansas
William D. Harris, DO is one of 1,010 internal medicine physician records with a practice address in Kansas. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 63% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated1982 · median 2008 among the 568 with a school on file
- Record last updated2025 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Kansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
52 internal medicine physician records list a practice address in Topeka
They are 52 of the 4,851 NPPES records with a practice address in Topeka, and 1,010 internal medicine physician records in Kansas.
All 1,010 in Kansas → Every provider in Topeka → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- James Barnett, MDTopeka, KS 666061437189008
- Michael Cox, MDTopeka, KS 666061275593451
- Robert Holmes, MDTopeka, KS 666061790794634
- Stephanie Jones, MDTopeka, KS 666061982649224
- Randall McAllister, M.D.Topeka, KS 666061275506735
- Jed McKee, MDTopeka, KS 666061699714949
- Charles Nelson, MDTopeka, KS 666061508847161
- Marius Pacioianu, MDTopeka, KS 666061881689594
Common questions
What is William D. Harris, DO's NPI number?
William D. Harris, DO's National Provider Identifier (NPI) is 1144200536, issued on Jan 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William D. Harris, DO located?
The NPPES record lists a practice address at 823 SW Mulvane St, Topeka, KS, 66606. Phone: (785) 354-9591. Providers update this record themselves, so call before visiting.
How can I verify William D. Harris, DO's license?
NPPES lists Kansas license number 0523845, as entered by the provider. Search the Kansas State Board of Healing Arts at https://www.ksbha.ks.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William D. Harris, DO prescribe under Medicare Part D?
In 2024, William D. Harris, DO had 5,810 Medicare Part D claims for 490 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.