John C. Harrington, M.D.
Interventional Cardiology Physician · La Jolla, CA
John C. Harrington, M.D. is an interventional cardiology physician with a practice address in La Jolla, California, and NPI 1346251451, issued on Aug 11, 2006. Check the license (California A45573, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John C. Harrington
- Credential
- M.D.
- Primary taxonomy
- Interventional Cardiology Physician 207RI0011X
- License number
- A45573 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9888 Genesee Ave, La Jolla, CA 92037
- Phone
- (760) 452-6334
- Enumerated
- Aug 11, 2006
- Record last updated
- Mar 4, 2022
- Medicare enrollment
- Enrolled (PECOS I20070615000373); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 1984
- Entity
- Type 1 · individual
8 nearest interventional cardiology physician records → All 632 in California → Look up another NPI →
Also registered at 9888 Genesee Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lesly Aguilar TaboraNeurology Physician1467638601
- Iman AutmanMedical-Surgical Clinical Nurse Specialist1184579070
- Mariah Baughn, MDAnatomic Pathology & Clinical Pathology Physician1205032752
- Justin BlackmonPhysician Assistant1699182832
- Julie Bornhoeft, MS, RDRegistered Dietitian1740721760
- Maja Boyd, MSN, RN, AGCNS-BCAdult Health Clinical Nurse Specialist1992294847
Verify John C. Harrington in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A45573Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average interventional cardiology physician in 2024
556 Medicare Part D claims for 74 beneficiaries, against an average of 3,179 among the 6,605 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Clopidogrel66 claims
- Atorvastatin Calcium50 claims
- Carvedilol50 claims
- Losartan Potassium42 claims
- Amlodipine Besylate36 claims
- Eliquis32 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $185.51
2 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 6,394 providers of this specialty with any payment received $7,062.29 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Scripps Cardiology Medical Group, Inc.La Jolla, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John C. Harrington among 632 interventional cardiology physician records in California
John C. Harrington, M.D. is one of 632 interventional cardiology physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 52% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 83% of these records are
- Graduated1984 · median 2001 among the 526 with a school on file
- Record last updated2022 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0011X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Interventional Cardiology Physician providers in California
There are 632 interventional cardiology physician records in California.
All 632 in California → Every provider in La Jolla → Interventional Cardiology Physician nationwide →
The 8 interventional cardiology physician records with the nearest ZIP codes
- Gregory Czaja, MDLa Jolla, CA 920371225390461
- Michael Healy, MDLa Jolla, CA 920371619396017
- Fady Ibrahim, M.D.La Jolla, CA 920371861854390
- Sibi KrishnamurthyLa Jolla, CA 920371043672181
- Parhum Namdaran, MDLa Jolla, CA 920371952797870
- Jad Omran, MDLa Jolla, CA 920371366720211
- Matthew Price, M.D.La Jolla, CA 920371659343945
- Richard Schatz, M.D.La Jolla, CA 920371154388189
Common questions
What is John C. Harrington, M.D.'s NPI number?
John C. Harrington, M.D.'s National Provider Identifier (NPI) is 1346251451, issued on Aug 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John C. Harrington, M.D. located?
The NPPES record lists a practice address at 9888 Genesee Ave, La Jolla, CA, 92037. Phone: (760) 452-6334. Providers update this record themselves, so call before visiting.
How can I verify John C. Harrington, M.D.'s license?
NPPES lists California license number A45573, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John C. Harrington, M.D. prescribe under Medicare Part D?
In 2024, John C. Harrington, M.D. had 556 Medicare Part D claims for 74 beneficiaries; the average among interventional cardiology physician prescribers was 3,179. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.