Doctor profile · Federal record

Dr. John Harrington, M.D.

Interventional Cardiology Physician (CMS: Cardiovascular Disease (Cardiology)) · Cardiovascular Disease Physician · La Jolla, CA

  • NPI 1346251451
  • Accepts Medicare
  • 42 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
9888 Genesee Ave
La Jolla, CA 920371205
(760) 452-6334
Mailing address
700 Garden View CT Ste 204
Encinitas, CA 920242478

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
March 4, 2022
Year of graduation
1984 — 42 yrs since
Specialty taxonomy
207RI0011X — NUCC code
State license (1)
California #A45573

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1346251451. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,696
Distinct HCPCS
10
Medicare allowed
$97,390
HCPCS Description Services Patients Avg allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 782 457 $8
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 202 56 $81
93306 Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 138 128 $71
93018 Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician 112 112 $14
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 110 34 $122
99291 Critical care, first 30-74 minutes 68 50 $218
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 50 46 $179
93325 Ultrasound of heart with color-depicted blood flow, rate and valve function 42 37 $3
93321 Ultrasound of heart blood flow, valves and chambers, follow-up 38 34 $7
93312 Ultrasound of heart with probe in esophagus, with report 36 34 $110

In context: peer comparison

Among 7 peers in La Jolla Interventional Cardiology Physician, average services per provider: 69. This provider delivers 25× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$186
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Medtronic, INC. 1 $157.32
Zoll Services LLC (A/K/A Zoll LifeCor Corp) 1 $28.19

By nature of payment

Food and Beverage
$186

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
643
Patients
152
Total drug cost
$114,798
Drug Type Claims Patients Total cost
Clopidogrel (Clopidogrel Bisulfate) Brand 86 24 $1,159
Atorvastatin Calcium Generic 78 23 $911
Carvedilol Generic 67 20 $726
Losartan Potassium Generic 62 21 $569
Eliquis (Apixaban) Brand 58 11 $46,700
Amlodipine Besylate Generic 52 17 $472
Entresto (Sacubitril/Valsartan) Brand 44 0 $31,759
Nitroglycerin Generic 36 23 $534
Rosuvastatin Calcium Generic 28 13 $930
Farxiga (Dapagliflozin Propanediol) Brand 27 0 $20,443

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. John Harrington's medical specialty?
Dr. John Harrington practices Interventional Cardiology Physician in La Jolla, CA.
Where does Dr. John Harrington practice?
Dr. John Harrington practices at 9888 Genesee Ave, La Jolla, CA 920371205. Office phone: 7604526334.
What is Dr. John Harrington's NPI?
Dr. John Harrington's National Provider Identifier (NPI) is 1346251451, issued by NPPES.
Does Dr. John Harrington accept Medicare assignment?
Yes. Dr. John Harrington accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Harrington commonly perform?
Top Medicare-reported procedures in 2023: Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (HCPCS 93306). Source: CMS Medicare Physician & Other Practitioners file.