William Duncan, MD
NPI 1679516231 · Orthopaedic Surgery Physician · Springfield, MO
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Duncan, MD is a Orthopaedic Surgery Physician provider in Springfield, MO (NPI 1679516231).
Provider details
- NPI number
- 1679516231
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2005005176 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,034 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| X-Ray of Shoulder, Minimum of 2 Views73030 | 266 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 225 | $118 |
| X-Ray of Knee, 3 Views73562 | 209 | $19 |
| X-Ray of Knee, 1-2 Views73560 | 200 | $17 |
| X-Ray of Hip, 2-3 Views73502 | 188 | $21 |
| X-Ray of Knee, 4 Or More Views73564 | 178 | $26 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ondansetron Hcl | 223 | 210 |
| Oxycodone Hcl | 181 | 164 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 118 | 93 |
| Amoxicillin | 51 | 28 |
| Methylprednisolone | 34 | 32 |
| Promethazine Hcl | 16 | 14 |
| Apixabanbrand: Eliquis | 15 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$270 across 7 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-13
- Last updated
- 2012-07-03
Frequently asked questions
- What is William Duncan's NPI number?
- William Duncan's National Provider Identifier (NPI) is 1679516231, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Duncan's specialty?
- William Duncan is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is William Duncan located?
- William Duncan's practice location on file with NPPES is 3555 S National Ave, Springfield, MO 65807-7310.
- What is William Duncan's phone number?
- The practice phone number listed in the NPPES registry for William Duncan is (417) 875-3800.
- Does William Duncan accept Medicare?
- William Duncan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Duncan's NPI active?
- Yes — William Duncan's NPI (1679516231) is active in the NPPES registry as of the last update on 2012-07-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.