Mark Aaron, M.D.
NPI 1306891262 · Advanced Heart Failure and Transplant Cardiology Physician · Nashville, TN
Enrolled with Medicare as Practitioner - Advanced Heart Failure and Transplant Cardiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Aaron, M.D. is a Advanced Heart Failure and Transplant Cardiology Physician provider in Nashville, TN (NPI 1306891262).
Provider details
- NPI number
- 1306891262
- Entity type
- Individual
- Primary specialty
- Advanced Heart Failure and Transplant Cardiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 34472 (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 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
1,365 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 | 388 | $89 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 223 | $116 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 189 | $70 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 175 | $63 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 89 | $13 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 55 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sacubitril/Valsartanbrand: Entresto | 578 | 124 |
| Spironolactone | 549 | 160 |
| Furosemide | 527 | 178 |
| Carvedilol | 493 | 146 |
| Empagliflozinbrand: Jardiance | 461 | 120 |
| Atorvastatin Calcium | 378 | 122 |
| Metoprolol Succinate | 318 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$92 across 4 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
- 2006-05-22
- Last updated
- 2020-02-25
- Certified
- 2020-02-25
Frequently asked questions
- What is Mark Aaron's NPI number?
- Mark Aaron's National Provider Identifier (NPI) is 1306891262, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Aaron's specialty?
- Mark Aaron is listed in the NPPES registry with a primary specialty of Advanced Heart Failure and Transplant Cardiology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Aaron located?
- Mark Aaron's practice location on file with NPPES is 4230 Harding Rd, Nashville, TN 37205-2013.
- What is Mark Aaron's phone number?
- The practice phone number listed in the NPPES registry for Mark Aaron is (615) 269-4545.
- Does Mark Aaron accept Medicare?
- Mark Aaron is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Aaron's NPI active?
- Yes — Mark Aaron's NPI (1306891262) is active in the NPPES registry as of the last update on 2020-02-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.