John Duncan, MD
NPI 1396844064 · Cardiovascular Disease Physician · Plano, TX
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Duncan, MD is a Cardiovascular Disease Physician provider in Plano, TX (NPI 1396844064).
Provider details
- NPI number
- 1396844064
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- J3459 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 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
3,804 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,065 | $122 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 896 | $8 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 489 | $14 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 290 | $75 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 180 | $185 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 63 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 609 | 202 |
| Metoprolol Succinate | 588 | 187 |
| Apixabanbrand: Eliquis | 498 | 113 |
| Rosuvastatin Calcium | 498 | 152 |
| Ezetimibe | 383 | 120 |
| Amlodipine Besylate | 376 | 117 |
| Furosemide | 311 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,884 across 77 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
- 2006-09-21
- Last updated
- 2023-05-18
- Certified
- 2023-05-18
Frequently asked questions
- What is John Duncan's NPI number?
- John Duncan's National Provider Identifier (NPI) is 1396844064, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Duncan's specialty?
- John Duncan is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is John Duncan located?
- John Duncan's practice location on file with NPPES is 3801 W 15th St, Plano, TX 75075-4737.
- What is John Duncan's phone number?
- The practice phone number listed in the NPPES registry for John Duncan is (972) 985-8838.
- Does John Duncan accept Medicare?
- John Duncan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Duncan's NPI active?
- Yes — John Duncan's NPI (1396844064) is active in the NPPES registry as of the last update on 2023-05-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.