Baron Dwayne Harper, M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Marysville, CA
Baron Dwayne Harper, M.D. is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Marysville, California, and NPI 1588695902, issued on Jul 5, 2006. Check the license (California G88253, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Baron Dwayne Harper
- Credential
- M.D.
- Primary taxonomy
- Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
- License numbers
- G88253 CA
036088122 IL
Self-reported in NPPES; status is on the state search - Practice location
- 401 I St, Marysville, CA 95901
- Phone
- (530) 743-5125
- Enumerated
- Jul 5, 2006
- Record last updated
- Jun 19, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (530) 743-4528
- Medicaid IDs
- 036088122 IL
32030700 WI
1588695902 CA - Medicare enrollment
- Enrolled (PECOS I20081023000490); accepts Medicare assignment
- Medical or professional school
- Washington University School Of Medicine, 1989
- Entity
- Type 1 · individual
8 nearest thoracic surgery (cardiothoracic vascular surgery) physician records → All 634 in California → Look up another NPI →
Also registered at 401 I St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Bonacci, FNP, PAPhysician Assistant1669503785
- Ashley Carpenter, PAPhysician Assistant1932675600
- Melissa Hill, PASurgical Physician Assistant1245374008
Verify Baron Dwayne Harper in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G88253Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 97.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $285.60
5 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. 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
- Adventist Health Physicians NetworkMarysville, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Baron Dwayne Harper among 634 thoracic surgery (cardiothoracic vascular surgery) physician records in California
Baron Dwayne Harper, M.D. 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
- Graduated1989 · median 1997 among the 408 with a school on file
- Record last updated2014 · 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 Marysville → Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician nationwide →
The 8 thoracic surgery (cardiothoracic vascular surgery) physician records with the nearest ZIP codes
- Ronald Becker, M.D.Chico, CA 959261629277892
- Miguel Puig Palomar, MDChico, CA 959261558361139
- Mervin O'Neil, MDSacramento, CA 958251972681641
- Carlos Perez, MDSacramento, CA 958251831277599
- Ryan Cox, MDSacramento, CA 958231477631190
- Anthony Rayner, MDSacramento, CA 958231710037510
- Ralph Cox, M.D.Sacramento, CA 958191962454306
- Joseph Huh, MDSacramento, CA 958191295823292
Common questions
What is Baron Dwayne Harper, M.D.'s NPI number?
Baron Dwayne Harper, M.D.'s National Provider Identifier (NPI) is 1588695902, issued on Jul 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Baron Dwayne Harper, M.D. located?
The NPPES record lists a practice address at 401 I St, Marysville, CA, 95901. Phone: (530) 743-5125. Providers update this record themselves, so call before visiting.
How can I verify Baron Dwayne Harper, M.D.'s license?
NPPES lists California license number G88253, 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.
What is Baron Dwayne Harper, M.D.'s MIPS final score?
The 2023 MIPS final score is 97.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.