William Harris, DO
NPI 1144200536 · Internal Medicine Physician · Topeka, KS
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Harris, DO is a Internal Medicine Physician provider in Topeka, KS (NPI 1144200536).
Provider details
- NPI number
- 1144200536
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 0523845 (KS)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
2,753 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 554 | $118 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 435 | $9 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 324 | $58 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 245 | $120 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 174 | $72 |
| Chronic Care Management Services for Two Or More Chronic Conditions, Additional 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 88 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 507 | 132 |
| Simvastatin | 338 | 83 |
| Atorvastatin Calcium | 280 | 89 |
| Amlodipine Besylate | 265 | 71 |
| Lisinopril | 236 | 56 |
| Omeprazole | 184 | 46 |
| Pantoprazole Sodium | 173 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-20
- Last updated
- 2025-01-23
- Certified
- 2025-01-23
Frequently asked questions
- What is William Harris's NPI number?
- William Harris's National Provider Identifier (NPI) is 1144200536, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Harris's specialty?
- William Harris is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Harris located?
- William Harris's practice location on file with NPPES is 823 Sw Mulvane St, Topeka, KS 66606-1764.
- What is William Harris's phone number?
- The practice phone number listed in the NPPES registry for William Harris is (785) 354-9591.
- Does William Harris accept Medicare?
- William Harris is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Harris's NPI active?
- Yes — William Harris's NPI (1144200536) is active in the NPPES registry as of the last update on 2025-01-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.