Duncan Mckellar, MD
NPI 1699750323 · Orthopaedic Surgery Physician · Mckinney, TX
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Duncan Mckellar, MD is a Orthopaedic Surgery Physician provider in Mckinney, TX (NPI 1699750323).
Provider details
- NPI number
- 1699750323
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G5359 (TX)
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,153 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 266 | $86 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 175 | $121 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 161 | $70 |
| Replacement of Knee Joint, Both Sides of Knee27447 | 104 | $342 |
| X-Ray of Knee, 3 Views73562 | 98 | $37 |
| 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 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 74 | 47 |
| Celecoxib | 37 | 28 |
| Meloxicam | 26 | 17 |
| Ondansetron Hcl | 23 | 23 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 14 | — |
| Tramadol Hcl | 14 | 11 |
| Methylprednisolone | 12 | 11 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$344 across 10 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
Additional practice locations (1)
- 6821 Bonaparte CtPlano, TX 75024Phone: (931) 472-8651Fax: (469) 800-1250
Registry dates
- Enumerated
- 2005-12-15
- Last updated
- 2022-12-21
- Certified
- 2022-12-21
Frequently asked questions
- What is Duncan Mckellar's NPI number?
- Duncan Mckellar's National Provider Identifier (NPI) is 1699750323, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Duncan Mckellar's specialty?
- Duncan Mckellar is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Duncan Mckellar located?
- Duncan Mckellar's practice location on file with NPPES is 4201 Medical Center Dr Ste 100, Mckinney, TX 75069-1766.
- What is Duncan Mckellar's phone number?
- The practice phone number listed in the NPPES registry for Duncan Mckellar is (972) 566-5255.
- Does Duncan Mckellar accept Medicare?
- Duncan Mckellar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Duncan Mckellar's NPI active?
- Yes — Duncan Mckellar's NPI (1699750323) is active in the NPPES registry as of the last update on 2022-12-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.