Gregory Richard Czaja, MD
Interventional Cardiology Physician · La Jolla, CA
Gregory Richard Czaja, MD is an interventional cardiology physician with a practice address in La Jolla, California, and NPI 1225390461, issued on Jun 13, 2012. Check the license (California C186984, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gregory Richard Czaja
- Credential
- MD
- Primary taxonomy
- Interventional Cardiology Physician 207RI0011X
- License number
- C186984 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9898 Genesee Ave, La Jolla, CA 92037
- Phone
- (858) 824-5222
- Enumerated
- Jun 13, 2012
- Record last updated
- Jun 25, 2025
- Medicare enrollment
- Enrolled (PECOS I20240515004341); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest interventional cardiology physician records → All 632 in California → Look up another NPI →
Also registered at 9898 Genesee Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Omar Al-Nouri, D.O.Vascular Surgery Physician1770742264
- Bella Albakova, PASurgical Physician Assistant1013020809
- Rawaa Almukhtar, M.D., MPHDermatology Physician1003202409
- Eneh-Lieh Ancheta, NPNurse Practitioner1477067981
- Bruce Armstrong, P.A.-C. , MHSPhysician Assistant1003915042
- Anshuman Bansal, M.D.Vascular & Interventional Radiology Physician1366685273
Verify Gregory Richard Czaja in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C186984Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average interventional cardiology physician in 2024
53 Medicare Part D claims for 37 beneficiaries, against an average of 3,179 among the 6,605 providers of this specialty who prescribed in Part D.
Most prescribed
- Clopidogrel39 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: $2,081.76
25 payments; by number, the most common kind was food and beverage; the largest payer was ShockWave Medical, 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 HealthLa Jolla, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Richard Czaja among 632 interventional cardiology physician records in California
Gregory Richard Czaja, MD 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 2012, is newer than 79% of them.
- NPI issued2012 · 79% of these records are older, 18% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 83% of these records are
- Graduated2012 · median 2001 among the 526 with a school on file
- Record last updated2025 · 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
- John Harrington, M.D.La Jolla, CA 920371346251451
- 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 Gregory Richard Czaja, MD's NPI number?
Gregory Richard Czaja, MD's National Provider Identifier (NPI) is 1225390461, issued on Jun 13, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Richard Czaja, MD located?
The NPPES record lists a practice address at 9898 Genesee Ave, La Jolla, CA, 92037. Phone: (858) 824-5222. Providers update this record themselves, so call before visiting.
How can I verify Gregory Richard Czaja, MD's license?
NPPES lists California license number C186984, 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 Gregory Richard Czaja, MD prescribe under Medicare Part D?
In 2024, Gregory Richard Czaja, MD had 53 Medicare Part D claims for 37 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.