John C. Chen, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Los Angeles, CA
John C. Chen, MD is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Los Angeles, California, and NPI 1902993058, issued on Oct 9, 2006. Check the license (California G66881, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John C. Chen
- Credential
- MD
- Primary taxonomy
- Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
- License numbers
- G66881 CA
MD-10805 HI
Self-reported in NPPES; status is on the state search - Practice location
- 1520 San Pablo St, Los Angeles, CA 90033
- Phone
- (323) 442-5849
- Enumerated
- Oct 9, 2006
- Record last updated
- Oct 12, 2022
- Medicaid ID
- 506264-01 HI
- Medicare enrollment
- Enrolled (PECOS I20200812003468); accepts Medicare assignment
- Medical or professional school
- Temple University School Of Medicine, 1988
- Entity
- Type 1 · individual
8 nearest thoracic surgery (cardiothoracic vascular surgery) physician records → All 634 in California → Look up another NPI →
Also registered at 1520 San Pablo St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Frank Acosta, PHDPsychologist1750313490
- Gbemisola Adenuga, M.D.Nephrology Physician1952464661
- Aimee Aguillon, OTR/L, CHTOccupational Therapist1972677318
- Haig Aharonian, M.D.Internal Medicine Physician1205107653
- Jamshid Ahmadi, M.D.Neuroradiology Physician1942252028
- Mohammad Akmal, M.D.Nephrology Physician1356378087
Verify John C. Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G66881Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $171.42
2 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 4,047 providers of this specialty with any payment received $7,828.84 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
- Usc Care Medical Group IncArcadia, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John C. Chen among 634 thoracic surgery (cardiothoracic vascular surgery) physician records in California
John C. Chen, MD is one of 634 thoracic surgery (cardiothoracic vascular surgery) physician records with a practice address in California. 75% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 45% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1988 · median 1997 among the 408 with a school on file
- Record last updated2022 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208G00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in California
There are 634 thoracic surgery (cardiothoracic vascular surgery) physician records in California.
All 634 in California → Every provider in Los Angeles → Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician nationwide →
The 8 thoracic surgery (cardiothoracic vascular surgery) physician records with the nearest ZIP codes
- Scott Atay, M.D.Los Angeles, CA 900331215198379
- Craig Baker, MDLos Angeles, CA 900331922020833
- Mark Barr, MDLos Angeles, CA 900331922039577
- Robbin Cohen, MDLos Angeles, CA 900331417972621
- Fernando Fleischman, MDLos Angeles, CA 900331760654883
- Darren Hodgins, MDLos Angeles, CA 900331740486364
- Louis Holmes, PALos Angeles, CA 900331336174911
- Ming-Lu Huang, MDLos Angeles, CA 900331144255514
Common questions
What is John C. Chen, MD's NPI number?
John C. Chen, MD's National Provider Identifier (NPI) is 1902993058, issued on Oct 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John C. Chen, MD located?
The NPPES record lists a practice address at 1520 San Pablo St, Los Angeles, CA, 90033. Phone: (323) 442-5849. Providers update this record themselves, so call before visiting.
How can I verify John C. Chen, MD's license?
NPPES lists California license number G66881, 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.
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.