James Byun
Dentist · North Hills, CA
James Byun is a dentist with a practice address in North Hills, California, and NPI 1992209449, issued on Mar 20, 2018. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- James Byun
- Primary taxonomy
- Dentist 122300000X
- Practice location
- 16111 Plummer St, North Hills, CA 91343
- Phone
- (703) 615-4017
- Enumerated
- Mar 20, 2018
- Record last updated
- Mar 20, 2018 (not updated in 8 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest dentist records → All 14,729 in California → Look up another NPI →
Also registered at 16111 Plummer St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sara AhdootStudent in an Organized Health Care Education/Training Program1225786981
- Cathy Alessi, M.D.Geriatric Medicine (Internal Medicine) Physician1134224983
- Allen AmirantPharmacotherapy Pharmacist1639273659
- Leann Arjona, MSWClinical Social Worker1376810036
- Jeffrey Asano, D.D.SDentist1245734334
- Rajnikant Bakhda, MDDiagnostic Radiology Physician1265539282
Verify James Byun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average dentist in 2024
188 Medicare Part D claims for 121 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. 13 claims were for opioids.
Most prescribed
- Amoxicillin64 claims
- Ibuprofen51 claims
- Clindamycin Hcl28 claims
- Methylprednisolone15 claims
- Acetaminophen-Codeine13 claims
- Cephalexin13 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.
James Byun among 14,729 dentist records in California
James Byun is one of 14,729 dentist records with a practice address in California. 56% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 76% of them.
- NPI issued2018 · 76% of these records are older, 22% newer
- In a Medicare fileYes · 56% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2018 · 73% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
17 dentist records list a practice address in North Hills
They are 17 of the 806 NPPES records with a practice address in North Hills, and 14,729 dentist records in California.
All 14,729 in California → Every provider in North Hills → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Manoj Bay, DDSNorth Hills, CA 913431982886875
- Sam DjangNorth Hills, CA 913431467797878
- Bebenaz Ehsan, DDSNorth Hills, CA 913431952685422
- Andrew French, DDSNorth Hills, CA 913431053708487
- Aram Grigoryan, DDSNorth Hills, CA 913431144697293
- Juan HuamanNorth Hills, CA 913431467776450
- Dina Mismar, D.D.S.North Hills, CA 913431235548033
- Puja Mistry, D.M.DNorth Hills, CA 913431073885794
Common questions
What is James Byun's NPI number?
James Byun's National Provider Identifier (NPI) is 1992209449, issued on Mar 20, 2018. An NPI identifies a provider in billing; it is not a license.
Where is James Byun located?
The NPPES record lists a practice address at 16111 Plummer St, North Hills, CA, 91343. Phone: (703) 615-4017. Providers update this record themselves, so call before visiting.
How can I verify James Byun's license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does James Byun prescribe under Medicare Part D?
In 2024, James Byun had 188 Medicare Part D claims for 121 beneficiaries; the average among dentist prescribers was 86. 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.