Registry data as of Aug 27, 2026

Diana Bui

Pharmacist · Irvine, CA

Diana Bui is a pharmacist with a practice address in Irvine, California, and NPI 1982188645, issued on Sep 19, 2018. Check the license (California 78983, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1982188645
Name
Diana Bui
Primary taxonomy
Pharmacist 183500000X
License number
78983 CA
Self-reported in NPPES; status is on the state search
Practice location
13200 Jamboree RD, Irvine, CA 92602
Phone
(714) 838-7433
Enumerated
Sep 19, 2018
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 13200 Jamboree RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Daniel AkersPharmacist1093146359
  2. Celso Catipon, PHARM.D.Pharmacist1356618656
  3. Peiwen ChainPharmacist1205356631
  4. Angela DinhPharmacist1639716731
  5. Priyanka DoshiPharmacist1245507540
  6. Connie Lam, ODOptometrist1326682840

Verify Diana Bui in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 78983
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

61% fewer Medicare Part D claims than the average pharmacist in 2024

49 Medicare Part D claims for 47 beneficiaries, against an average of 127 among the 28,933 providers of this specialty who prescribed in Part D. Brand-name drugs were 100% of claims.

  1. Diana Bui49
  2. Specialty average127

Most prescribed

  1. Abrysvo26 claims
  2. Shingrix15 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.

284 pharmacist records list a Irvine practice address

They are 284 of the 7,778 NPPES records with a Irvine practice address, and 32,698 pharmacist records in California.

Other pharmacist records in California

  1. Caroline A-Haja, PHARM.D.San Pedro, CA1851664361
  2. Gayatri AachiLivermore, CA1235660754
  3. Adrian Karlos Aala, PHARMD, RPHHayward, CA1023955499
  4. Mahshid Aalam, PHARMDLos Angeles, CA1659086155
  5. Jaleh AaliiveliSan Ramon, CA1336629963
  6. Cassi Aarvig, RPHTracy, CA1023679941
  7. Meara Michi AbadOrange, CA1750181178
  8. Nader Abadier, RPHFontana, CA1326255647
  9. Samia Abadier, RPHFontana, CA1548742836
  10. Sandy Abadir, RPHChino Hills, CA1811644412

Common questions

What is Diana Bui's NPI number?

Diana Bui's National Provider Identifier (NPI) is 1982188645, issued on Sep 19, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Diana Bui located?

The NPPES record lists a practice address at 13200 Jamboree RD, Irvine, CA, 92602. Phone: (714) 838-7433. Providers update this record themselves, so call before visiting.

How can I verify Diana Bui's license?

NPPES lists California license number 78983, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Diana Bui prescribe under Medicare Part D?

In 2024, Diana Bui had 49 Medicare Part D claims for 47 beneficiaries; the average among pharmacist prescribers was 127. 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.