Katherine J. Ludington, M.D.
NPI 1164420469ActiveIndividual· Internal Medicine, Cardiovascular Disease· Encinitas, CA
Internal Medicine, Cardiovascular Disease (M.D.) in Encinitas, California, trained at University of California, San Francisco School of Medicine (class of 1997). In 2024 Medicare paid $1,191,379 for 864 patients, and Part D covered 3,772 of their prescriptions, 83% of them generic. Impulse Dynamics (USA) Inc. was the largest of 15 companies reporting payments in 2025, $1,149 in all, mostly food and beverage.
Overview
| NPI | 1164420469 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jul 11, 2005 |
| Last updated in NPPES | Feb 22, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | A66026 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Cardiovascular Disease (Cardiology) (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 864 |
|---|---|
| Services billed | 13,461 across 49 procedure codes |
| Paid by Medicare | $1,191,379 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,772 · 9,874 30-day fills |
|---|---|
| Patients | 586 |
| Total drug cost | $734,000 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | University of California, San Francisco School of Medicine |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- North Coast Cardiology IncOceanside, CA · 2 clinicians
Hospital affiliation
- Scripps Memorial Hospital - EncinitasEncinitas, CA
Industry payments (Open Payments)
- 2025$1,149 · 41 payments from 15 companies
- 2024$1,533 · 42 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Impulse Dynamics (USA) Inc. | $687.64 | 18 |
| Amgen Inc. | $68.34 | 4 |
| Abbott Laboratories | $61.68 | 3 |
| Medtronic, Inc. | $51.38 | 2 |
| Lilly USA, LLC | $47.17 | 2 |
What the 2025 payments were for
- Food and Beverage$1,149 · 41 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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