William Butz, M.D.
NPI 1649384868 · Family Medicine Physician · Red Oak, IA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Butz, M.D. is a Family Medicine Physician provider in Red Oak, IA (NPI 1649384868).
Provider details
- NPI number
- 1649384868
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 32883 (IA)
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
19 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
42 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 23 | $7 |
| Physician Or Allowed Practitioner Certification for Medicare-Covered Home Health Services Under a Home Health Plan of Care (patient Not Present), Including Contacts With Home Health Agency and Review of Reports of Patient Status Required By Physicians andG0180 | 19 | $49 |
Typical Medicare-allowed amounts for these services range $7–$49 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 136 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 445 | 118 |
| Losartan Potassium | 434 | 114 |
| Levothyroxine Sodium | 394 | 83 |
| Furosemide | 320 | 52 |
| Metoprolol Succinate | 317 | 77 |
| Amlodipine Besylate | 279 | 77 |
| Pantoprazole Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-17
- Last updated
- 2024-04-10
- Certified
- 2024-04-10
Frequently asked questions
- What is William Butz's NPI number?
- William Butz's National Provider Identifier (NPI) is 1649384868, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Butz's specialty?
- William Butz is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Butz located?
- William Butz's practice location on file with NPPES is 1400 Senate Ave Ste 108, Red Oak, IA 51566-1271.
- What is William Butz's phone number?
- The practice phone number listed in the NPPES registry for William Butz is (712) 623-7250.
- Does William Butz accept Medicare?
- William Butz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Butz's NPI active?
- Yes — William Butz's NPI (1649384868) is active in the NPPES registry as of the last update on 2024-04-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.