Katherine Ludington, M.D.
NPI 1164420469 · Cardiovascular Disease Physician · Encinitas, CA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Ludington, M.D. is a Cardiovascular Disease Physician provider in Encinitas, CA (NPI 1164420469).
Provider details
- NPI number
- 1164420469
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A66026 (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
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
12,516 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 2,626 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 2,025 | $136 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 1,268 | $15 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 1,164 | $191 |
| Evaluation of Cardiac Rhythm Monitor System, Remote Up to 30 Days93298 | 1,096 | $116 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 53 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 535 | 184 |
| Metoprolol Succinate | 361 | 120 |
| Apixabanbrand: Eliquis | 245 | 64 |
| Amlodipine Besylate | 221 | 80 |
| Valsartan/Hydrochlorothiazidebrand: Valsartan-Hydrochlorothiazide | 122 | 45 |
| Valsartan | 110 | 31 |
| Sotalol Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,533 across 42 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
- 2005-07-11
- Last updated
- 2008-02-22
Frequently asked questions
- What is Katherine Ludington's NPI number?
- Katherine Ludington's National Provider Identifier (NPI) is 1164420469, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Ludington's specialty?
- Katherine Ludington is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Ludington located?
- Katherine Ludington's practice location on file with NPPES is 4401 Manchester Ave, Encinitas, CA 92024-4938.
- What is Katherine Ludington's phone number?
- The practice phone number listed in the NPPES registry for Katherine Ludington is (760) 753-0220.
- Does Katherine Ludington accept Medicare?
- Katherine Ludington is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Ludington's NPI active?
- Yes — Katherine Ludington's NPI (1164420469) is active in the NPPES registry as of the last update on 2008-02-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.