Jamie Byun, MD
Gastroenterology Physician · Modesto, CA
Jamie Byun, MD is a gastroenterology physician with a practice address in Modesto, California, and NPI 1306341953, issued on Mar 27, 2018. Check the license (California A178102, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jamie Byun
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- A178102 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1401 Spanos CT, Modesto, CA 95355
- Phone
- (209) 550-4788
- Enumerated
- Mar 27, 2018
- Entity
- Type 1 · individual
Also registered at 1401 Spanos CT
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ashley Antovich, MDStudent in an Organized Health Care Education/Training Program1770167199
- Edward Auen, PH.D., M.D.Internal Medicine Physician1962464602
- Kevin Bixel, PAPhysician Assistant1063403376
- Michael Budd, M.D.Plastic Surgery Physician1699953893
- John Capua, D.O.Neurological Surgery Physician1811159254
- Alexander Davis, M.D.Orthopaedic Surgery Physician1083669170
Verify Jamie Byun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A178102Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
75% fewer Medicare Part D claims than the average gastroenterology physician in 2024
215 Medicare Part D claims for 48 beneficiaries, against an average of 848 among the 13,066 providers of this specialty who prescribed in Part D. Brand-name drugs were 55% of claims.
Most prescribed
- Mounjaro51 claims
- Topiramate31 claims
- Ozempic30 claims
- Metformin Hcl Er28 claims
- Wegovy24 claims
- Metformin Hcl22 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.
Industry payments in 2024: $180.45
10 payments, mostly food and beverage; the largest payer was Lilly USA, LLC. The 10,593 providers of this specialty with any payment received $4,948.62 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.
One hospital or facility affiliation
- Sutter Valley Medical FoundationManteca, 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.
Gastroenterology Physician providers in California
There are 1,749 gastroenterology physician records in California.
Other gastroenterology physician records in California
- David Aarons, MDLodi, CA1619081379
- Constante Abaya, MDOxnard, CA1003918459
- Homan Abdollahzadeh, MDPalm Springs, CA1184634826
- John Abdulian, M.D.Fresno, CA1437114113
- Hussein Abidali, DORancho Cucamonga, CA1205274768
- Alaa Abousaif, MDOrange, CA1235124108
- Donald Abrahm, M.D.Newport Beach, CA1215022405
- Maria Abreu, M.D.West Hollywood, CA1598793374
- Safwat Absood, M.D.Modesto, CA1932113891
- Ronald Adamany, M.D.Mission Viejo, CA1992780688
Common questions
What is Jamie Byun, MD's NPI number?
Jamie Byun, MD's National Provider Identifier (NPI) is 1306341953, issued on Mar 27, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Jamie Byun, MD located?
The NPPES record lists a practice address at 1401 Spanos CT, Modesto, CA, 95355. Phone: (209) 550-4788. Providers update this record themselves, so call before visiting.
How can I verify Jamie Byun, MD's license?
NPPES lists California license number A178102, 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 Jamie Byun, MD prescribe under Medicare Part D?
In 2024, Jamie Byun, MD had 215 Medicare Part D claims for 48 beneficiaries; the average among gastroenterology physician prescribers was 848. 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.