Louis Chu, M.D.
NPI 1326288473 · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Boston, MA
Enrolled with Medicare as Practitioner - Cardiac Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Louis Chu, M.D. is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider in Boston, MA (NPI 1326288473).
Provider details
- NPI number
- 1326288473
- Entity type
- Individual
- Primary specialty
- Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 240704 (MA)
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
17 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
150 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) |
|---|---|---|
| Replacement of Aortic Valve Through the Skin and Femoral Artery33361 | 37 | $762 |
| Coronary Artery Bypass Using Artery Graft, 1 Graft33533 | 31 | $1,808 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 21 | $181 |
| Coronary Artery Bypass Using Vein Or Artery Graft, 2 Grafts33518 | 19 | $409 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 17 | $139 |
| Harvest of Vein Using an Endoscope33508 | 13 | $16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,467 across 8 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
- 2009-03-03
- Last updated
- 2017-06-12
Frequently asked questions
- What is Louis Chu's NPI number?
- Louis Chu's National Provider Identifier (NPI) is 1326288473, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Louis Chu's specialty?
- Louis Chu is listed in the NPPES registry with a primary specialty of Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (Allopathic & Osteopathic Physicians).
- Where is Louis Chu located?
- Louis Chu's practice location on file with NPPES is 110 Francis St, Boston, MA 02215-5501.
- What is Louis Chu's phone number?
- The practice phone number listed in the NPPES registry for Louis Chu is (617) 632-8383.
- Does Louis Chu accept Medicare?
- Louis Chu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Louis Chu's NPI active?
- Yes — Louis Chu's NPI (1326288473) is active in the NPPES registry as of the last update on 2017-06-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.