David Chun, MD
Family Medicine Physician · Costa Mesa, CA
David Chun, MD is a family medicine physician with a practice address in Costa Mesa, California, and NPI 1932199213, issued on Oct 26, 2005. Check the license (California A65328, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- David Chun
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A65328 CA
Self-reported in NPPES; status is on the state search - Practice location
- 722 Baker St, Costa Mesa, CA 92626
- Phone
- (714) 557-6300
- Enumerated
- Oct 26, 2005
- Entity
- Type 1 · individual
Also registered at 722 Baker St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Loi Doan, DOFamily Medicine Physician1316523178
- Rachit Doshi, M.D.Student in an Organized Health Care Education/Training Program1548555394
- Ashkan Farhadi, M.D.Gastroenterology Physician1760423123
- Joseph Horejsi, MDFamily Medicine Physician1295726347
- Ena Kariya, MDFamily Medicine Physician1588655658
- Catherine Nguyen, MDFamily Medicine Physician1730569005
Verify David Chun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A65328Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
36% fewer Medicare Part D claims than the average family medicine physician in 2024
2,244 Medicare Part D claims for 245 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium351 claims
- Losartan Potassium120 claims
- Tamsulosin Hcl110 claims
- Metoprolol Succinate106 claims
- Amlodipine Besylate92 claims
- Lisinopril91 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.
One hospital or facility affiliation
- Memorialcare Medical FoundationCosta Mesa, CA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
48 family medicine physician records list a Costa Mesa practice address
They are 48 of the 4,286 NPPES records with a Costa Mesa practice address, and 16,272 family medicine physician records in California.
All 48 in Costa Mesa → All 16,272 in California → Every provider in Costa Mesa →
Other family medicine physician records in California
- Omer Aba-Omer, MDSanta Monica, CA1649702093
- Michelle Ababa, MDWilmington, CA1710922513
- Anna Tzeitel Abalos, MDRoseville, CA1720200017
- Adan Abarca, MDAnaheim, CA1760553689
- Vanessa Abarca, DOVentura, CA1952040859
- Lorraine Abate, M.D.Sacramento, CA1104840008
- Robert Abatecola, MDCastro Valley, CA1669551719
- Romeo Abaya, M.D.Cottonwood, CA1598053506
- Effiem Abbah, MD, MPHSan Francisco, CA1821185133
- Khuzeman Abbasi, MDSanta Rosa, CA1841979952
Common questions
What is David Chun, MD's NPI number?
David Chun, MD's National Provider Identifier (NPI) is 1932199213, issued on Oct 26, 2005. An NPI identifies a provider in billing; it is not a license.
Where is David Chun, MD located?
The NPPES record lists a practice address at 722 Baker St, Costa Mesa, CA, 92626. Phone: (714) 557-6300. Providers update this record themselves, so call before visiting.
How can I verify David Chun, MD's license?
NPPES lists California license number A65328, 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 Chun, MD prescribe under Medicare Part D?
In 2024, David Chun, MD had 2,244 Medicare Part D claims for 245 beneficiaries; the average among family medicine physician prescribers was 3,519. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.