Mark Lee Barr, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Los Angeles, CA
Mark Lee Barr, MD is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Los Angeles, California, and NPI 1922039577, issued on Jul 5, 2006. Check the license (California G75945, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark Lee Barr
- Credential
- MD
- Primary taxonomy
- Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
- License number
- G75945 CA
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
- Jul 5, 2006
- Record last updated
- Nov 27, 2023
- Fax
- (323) 442-5956
- 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.
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Verify Mark Lee Barr in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G75945Check 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: $101.38
1 payment: food and beverage; the largest payer was Abiomed. 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.
Mark Lee Barr among 634 thoracic surgery (cardiothoracic vascular surgery) physician records in California
Mark Lee Barr, 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 fileNo · 64% of these records are
- Record last updated2023 · 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
- John Chen, MDLos Angeles, CA 900331902993058
- 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 Mark Lee Barr, MD's NPI number?
Mark Lee Barr, MD's National Provider Identifier (NPI) is 1922039577, issued on Jul 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Lee Barr, 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 Mark Lee Barr, MD's license?
NPPES lists California license number G75945, 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.