Aaron Fowler, M.D.
NPI 1346582053 · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Orange, CA
Enrolled with Medicare as Practitioner - Cardiac Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Aaron Fowler, M.D. is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider in Orange, CA (NPI 1346582053).
Provider details
- NPI number
- 1346582053
- Entity type
- Individual
- Primary specialty
- Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A136191 (CA)
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
13 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
238 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) |
|---|---|---|
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 35 | $178 |
| Coronary Artery Bypass Using Artery Graft, 1 Graft33533 | 34 | $1,160 |
| Harvest of Vein Using an Endoscope33508 | 33 | $10 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 31 | $138 |
| Exclusion of Appendage of Left Upper Chamber of Heart Performed During Other Procedure on Chest33268 | 26 | $81 |
| Replacement of Aortic Valve Through the Skin and Femoral Artery33361 | 22 | $738 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$5,322 across 87 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
- 2013-03-20
- Last updated
- 2020-08-06
- Certified
- 2020-08-06
Frequently asked questions
- What is Aaron Fowler's NPI number?
- Aaron Fowler's National Provider Identifier (NPI) is 1346582053, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Aaron Fowler's specialty?
- Aaron Fowler is listed in the NPPES registry with a primary specialty of Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (Allopathic & Osteopathic Physicians).
- Where is Aaron Fowler located?
- Aaron Fowler's practice location on file with NPPES is 1310 W Stewart Dr, Orange, CA 92868-3856.
- What is Aaron Fowler's phone number?
- The practice phone number listed in the NPPES registry for Aaron Fowler is (714) 997-2224.
- Does Aaron Fowler accept Medicare?
- Aaron Fowler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Aaron Fowler's NPI active?
- Yes — Aaron Fowler's NPI (1346582053) is active in the NPPES registry as of the last update on 2020-08-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.