John Meriwether, M.D.
NPI 1356630008 · Clinical Cardiac Electrophysiology Physician · Knoxville, TN
Enrolled with Medicare as Practitioner - Cardiac Electrophysiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Meriwether, M.D. is a Clinical Cardiac Electrophysiology Physician provider in Knoxville, TN (NPI 1356630008).
Provider details
- NPI number
- 1356630008
- Entity type
- Individual
- Primary specialty
- Clinical Cardiac Electrophysiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 61419 (TN)
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 tenure28% of score
15 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
3,111 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) |
|---|---|---|
| Evaluation of Single, Dual, Multiple Lead Or Leadless Pacemaker System, Remote Up to 90 Days93294 | 785 | $28 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 312 | $13 |
| Evaluation of Single, Dual, Or Multiple Lead Implantable Defibrillator System, Remote Up to 90 Days93295 | 288 | $34 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 230 | $7 |
| Programming of Dual Lead Pacemaker System93280 | 212 | $68 |
| Evaluation of Cardiac Rhythm Monitor System, Remote Up to 30 Days93298 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 124 | 43 |
| Apixabanbrand: Eliquis | 102 | 28 |
| Carvedilol | 98 | 32 |
| Flecainide Acetate | 72 | 30 |
| Metoprolol Tartrate | 68 | 20 |
| Cephalexin | 49 | 49 |
| Amiodarone Hcl | 32 | 15 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-04-04
- Last updated
- 2020-09-15
- Certified
- 2020-09-15
Frequently asked questions
- What is John Meriwether's NPI number?
- John Meriwether's National Provider Identifier (NPI) is 1356630008, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Meriwether's specialty?
- John Meriwether is listed in the NPPES registry with a primary specialty of Clinical Cardiac Electrophysiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Meriwether located?
- John Meriwether's practice location on file with NPPES is 9320 Parkwest Blvd, Knoxville, TN 37923.
- What is John Meriwether's phone number?
- The practice phone number listed in the NPPES registry for John Meriwether is (865) 373-7100.
- Does John Meriwether accept Medicare?
- John Meriwether is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Meriwether's NPI active?
- Yes — John Meriwether's NPI (1356630008) is active in the NPPES registry as of the last update on 2020-09-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.