Doctor profile · Federal record

Dr. Katherine Ludington, M.D.

Cardiovascular Disease Physician (CMS: Cardiovascular Disease (Cardiology)) · Encinitas, CA

  • NPI 1164420469
  • Accepts Medicare
  • MIPS 77.7 / 100 · 2023
  • 29 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
4401 Manchester Ave, Suite 103
Encinitas, CA 920244938
(760) 753-0220

Credentials & registration

NPPES · NUCC
NPI registered
July 2005 — 21 yrs on file
Profile last updated
February 22, 2008
Year of graduation
1997 — 29 yrs since
Specialty taxonomy
207RC0000X — NUCC code
State license (1)
California #A66026

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1164420469. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
11,198
Distinct HCPCS
10
Medicare allowed
$1,509,613
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 2,234 654 $139
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 1,212 656 $16
93298 Evaluation of cardiac rhythm monitor system, remote up to 30 days 1,070 119 $27
G2066 Interrogation device evaluation(s), (remote) up to 30 days; implantable cardiovascular physiologic monitor system, implantable loop recorder system, or subcutaneous cardiac rhythm monitor system, remote data acquisition(s), receipt of transmissions and tec 1,063 118 $75
J2785 Injection, regadenoson, 0.1 mg 713 176 $54
99215 Established patient office or other outpatient visit, 40-54 minutes 676 360 $194
93306 Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 628 564 $225
A9500 Technetium tc-99m sestamibi, diagnostic, per study dose 478 236 $316
93224 Electrocardiogram (ecg) 2-day continuous with review and report by health care professional 289 262 $83
93297 Evaluation of implantable heart and blood vessel monitoring system, remote up to 30 days 264 28 $27

In context: peer comparison

Among 8 peers in Encinitas Cardiovascular Disease Physician, average services per provider: 223. This provider delivers 50× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,533
Transactions
42
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
Impulse Dynamics (USA) INC. 14 $789.21
Medtronic, INC. 5 $173.69
Boston Scientific Corporation 4 $119.09
Heartflow, INC. 2 $92.29
E.R. Squibb & Sons, L.L.C. 4 $86.33
Novartis Pharmaceuticals Corporation 3 $60.12
Kiniksa Pharmaceuticals International, Plc 2 $41.15
Abbott Laboratories 1 $24.67
Philips North America LLC 1 $24.10
Novo Nordisk INC 1 $23.96
Lilly USA, LLC 1 $23.49
Amgen INC. 1 $23.18
Baxter Healthcare 1 $22.04
Currax Pharmaceuticals LLC 1 $15.21
Esperion Therapeutics, INC. 1 $14.79

By nature of payment

Food and Beverage
$1,533

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,683
Patients
935
Total drug cost
$560,557
Drug Type Claims Patients Total cost
Rosuvastatin Calcium Generic 594 196 $16,467
Metoprolol Succinate Generic 408 141 $9,212
Eliquis (Apixaban) Brand 255 77 $354,335
Amlodipine Besylate Generic 240 85 $2,537
Sotalol (Sotalol Hcl) Brand 151 55 $3,682
Valsartan-Hydrochlorothiazide (Valsartan/Hydrochlorothiazide) Brand 145 47 $7,472
Losartan Potassium Generic 139 44 $1,949
Furosemide Generic 124 46 $848
Atorvastatin Calcium Generic 111 43 $1,744
Xarelto (Rivaroxaban) Brand 103 31 $145,078

Frequently asked questions

Auto-generated from federal data
What is Dr. Katherine Ludington's medical specialty?
Dr. Katherine Ludington practices Cardiovascular Disease Physician in Encinitas, CA.
Where does Dr. Katherine Ludington practice?
Dr. Katherine Ludington practices at 4401 Manchester Ave, Encinitas, CA 920244938. Office phone: 7607530220.
What is Dr. Katherine Ludington's NPI?
Dr. Katherine Ludington's National Provider Identifier (NPI) is 1164420469, issued by NPPES.
Does Dr. Katherine Ludington accept Medicare assignment?
Yes. Dr. Katherine Ludington accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Katherine Ludington commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (HCPCS 93000); Evaluation of cardiac rhythm monitor system, remote up to 30 days (HCPCS 93298). Source: CMS Medicare Physician & Other Practitioners file.