John B. Overton, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Stockton, CA
John B. Overton, MD is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Stockton, California, and NPI 1144261173, issued on Jun 9, 2006. Check the license (California C38023, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John B. Overton
- Credential
- MD
- Primary taxonomy
- Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
- License number
- C38023 CA
Self-reported in NPPES; status is on the state search - Practice location
- 420 W Acacia St, Stockton, CA 95203
- Phone
- (209) 851-3883
- Enumerated
- Jun 9, 2006
- Record last updated
- Nov 15, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (209) 851-3867
- Medicaid ID
- OOC380230 CA
- Medicare enrollment
- Enrolled (PECOS I20110419000721); accepts Medicare assignment
- Medical or professional school
- University Of North Carolina At Chapel Hill School Of Medicine, 1967
- Entity
- Type 1 · individual
8 nearest thoracic surgery (cardiothoracic vascular surgery) physician records → All 634 in California → Look up another NPI →
Also registered at 420 W Acacia St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christopher Arismendi, MDSurgery Physician1396792339
- Diego Ferro, M.D.Specialist1700027877
- Peter Hickox, M.D.Obstetrics & Gynecology Physician1962401810
- Lakshma Tiyyagura, MDGastroenterology Physician1164527883
Verify John B. Overton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C38023Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% more Medicare Part D claims than the average thoracic surgery (cardiothoracic vascular surgery) physician in 2024
159 Medicare Part D claims for 46 beneficiaries, against an average of 101 among the 2,587 providers of this specialty who prescribed in Part D. 45 claims were for opioids.
Most prescribed
- Clopidogrel75 claims
- Hydrocodone-Acetaminophen45 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.
John B. Overton among 634 thoracic surgery (cardiothoracic vascular surgery) physician records in California
John B. Overton, 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
- Graduated1967 · median 1997 among the 408 with a school on file
- Record last updated2016 · 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 Stockton → Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician nationwide →
The 8 thoracic surgery (cardiothoracic vascular surgery) physician records with the nearest ZIP codes
- Minghui Liu, MD, PHDStockton, CA 952031629274782
- Gamal Marey, M.D.Stockton, CA 952031548418759
- Isam Felahy, MDStockton, CA 952041316059306
- Jerome McDonald, MDStockton, CA 952041740253301
- James Morrissey, MDStockton, CA 952041033223060
- Donald Stowell, MDStockton, CA 952041467420711
- Michael Nathanson, MD, PHDSan Jose, CA 951281003845090
- Kg Romine, M.D.San Jose, CA 951241225441033
Common questions
What is John B. Overton, MD's NPI number?
John B. Overton, MD's National Provider Identifier (NPI) is 1144261173, issued on Jun 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John B. Overton, MD located?
The NPPES record lists a practice address at 420 W Acacia St, Stockton, CA, 95203. Phone: (209) 851-3883. Providers update this record themselves, so call before visiting.
How can I verify John B. Overton, MD's license?
NPPES lists California license number C38023, 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 B. Overton, MD prescribe under Medicare Part D?
In 2024, John B. Overton, MD had 159 Medicare Part D claims for 46 beneficiaries; the average among thoracic surgery (cardiothoracic vascular surgery) physician prescribers was 101. 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.