Katherine Brennan, MD
NPI 1497241020 · Cardiovascular Disease Physician · Lafayette, LA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Brennan, MD is a Cardiovascular Disease Physician provider in Lafayette, LA (NPI 1497241020).
Provider details
- NPI number
- 1497241020
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 343487 (LA)
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
7 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
391 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 127 | $8 |
| Exercise Or Drug-Induced Heart Stress Test With Electrocardiogram (ecg) With Supervision By Physician93016 | 65 | $20 |
| Exercise Or Drug-Induced Heart Stress Test With Electrocardiogram (ecg)93017 | 65 | $31 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 48 | $74 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 34 | $163 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$111 across 6 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
Additional practice locations (1)
- 330 Brookline AveBoston, MA 02215-5400Phone: (617) 667-7000
Registry dates
- Enumerated
- 2018-07-06
- Last updated
- 2024-10-02
- Certified
- 2024-09-12
Frequently asked questions
- What is Katherine Brennan's NPI number?
- Katherine Brennan's National Provider Identifier (NPI) is 1497241020, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Brennan's specialty?
- Katherine Brennan is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Brennan located?
- Katherine Brennan's practice location on file with NPPES is 441 Heymann Blvd, Lafayette, LA 70503-2611.
- What is Katherine Brennan's phone number?
- The practice phone number listed in the NPPES registry for Katherine Brennan is (337) 289-8429.
- Does Katherine Brennan accept Medicare?
- Katherine Brennan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Brennan's NPI active?
- Yes — Katherine Brennan's NPI (1497241020) is active in the NPPES registry as of the last update on 2024-10-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.