David G. Antoun, MD
Internal Medicine Physician · Oceanside, CA
David G. Antoun, MD is an internal medicine physician with a practice address in Oceanside, California, and NPI 1043573785, issued on Jun 18, 2012. Check the license (California A137117, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- David G. Antoun
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A137117 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4002 Vista Way, Oceanside, CA 92056
- Phone
- (760) 724-8411
- Enumerated
- Jun 18, 2012
- Record last updated
- May 9, 2023
- Medicare enrollment
- Enrolled (PECOS I20171114002221); accepts Medicare assignment
- Medical or professional school
- New York Medical College, 2011
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 4002 Vista Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Alaynick, M.D.Emergency Medicine Physician1073507174
- Matthew Allen, PA-CMedical Physician Assistant1770963589
- Hermineh AraminCytopathology Physician1821451444
- Allison Auchter, MD, PHDEmergency Medical Services (Emergency Medicine) Physician1013595248
- Romana Bailey, M.D.Neonatal-Perinatal Medicine Physician1396023685
- Eric Barco, MDGeriatric Medicine (Internal Medicine) Physician1619940095
Verify David G. Antoun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A137117Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average internal medicine physician in 2024
339 Medicare Part D claims for 166 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 17 claims were for opioids.
Most prescribed
- Amoxicillin-Clavulanate Potass25 claims
- Sulfamethoxazole-Trimethoprim16 claims
- Atorvastatin Calcium13 claims
- Amlodipine Besylate11 claims
- Doxycycline Hyclate11 claims
- Levofloxacin11 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 73.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $20.32
1 payment: food and beverage; the largest payer was Gilead Sciences, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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 2 group practices
- Emergency And Acute Care Medical CorporationChula Vista, CA
- San Diego Critical Care Medical Group IncChula Vista, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David G. Antoun among 17,696 internal medicine physician records in California
David G. Antoun, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 68% of them.
- NPI issued2012 · 68% of these records are older, 29% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2011 · median 2004 among the 11,065 with a school on file
- Record last updated2023 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in California
There are 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Oceanside → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Nancy Chang, M.D.Oceanside, CA 920561386635621
- Paul Dang, MDOceanside, CA 920561801882592
- Richard Day, MDOceanside, CA 920561386716959
- Kaveh Farhoomand, DOOceanside, CA 920561447249040
- Catherine Lawson, M.D.Oceanside, CA 920561649279043
- Robert Lee, MDOceanside, CA 920561528081155
- Matthew Long, DO, MPHOceanside, CA 920561740863273
- Claire McCutcheon, MDOceanside, CA 920561689028060
Common questions
What is David G. Antoun, MD's NPI number?
David G. Antoun, MD's National Provider Identifier (NPI) is 1043573785, issued on Jun 18, 2012. An NPI identifies a provider in billing; it is not a license.
Where is David G. Antoun, MD located?
The NPPES record lists a practice address at 4002 Vista Way, Oceanside, CA, 92056. Phone: (760) 724-8411. Providers update this record themselves, so call before visiting.
How can I verify David G. Antoun, MD's license?
NPPES lists California license number A137117, 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 David G. Antoun, MD prescribe under Medicare Part D?
In 2024, David G. Antoun, MD had 339 Medicare Part D claims for 166 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is David G. Antoun, MD's MIPS final score?
The 2023 MIPS final score is 73.6 of 100, reported for the practice group. 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.