NPPES file of Aug 9, 2026

Viet Q. Bui, M.D.

Psychiatry Physician · Torrance, CA

Viet Q. Bui, M.D. is a psychiatry physician with a practice address in Torrance, California, and NPI 1225183270, issued on Jan 23, 2007. Check the license (California A89727, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1225183270
Name
Viet Q. Bui
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
A89727 CA
Self-reported in NPPES; status is on the state search
Practice location
24050 Madison St, Torrance, CA 90505
Phone
(310) 375-8970
Enumerated
Jan 23, 2007
Record last updated
Nov 25, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(310) 375-8960
Medicare enrollment
Enrolled (PECOS I20170222002222); accepts Medicare assignment
Medical or professional school
Medical College Of Wisconsin, 2003
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 24050 Madison St

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

  1. Robert Babb, MFTMarriage & Family Therapist1588862460
  2. Heidi Bacani, LMFTMarriage & Family Therapist1518089531
  3. Cynthia Campbell, MA MFTMarriage & Family Therapist1588766984
  4. Janice Demore, M.A., C.C.C.Speech-Language Pathologist1447343934
  5. Jack Freinhar, M.D.Psychiatry Physician1689618878
  6. Susan Gittleman-Davies, MSW, LCSWClinical Social Worker1437267697

Verify Viet Q. Bui in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A89727
    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
Open 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.

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99% fewer Medicare Part D claims than the average psychiatry physician in 2024

11 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. Viet Bui11
  2. Specialty average1,000

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): 86.2 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.

  1. Qualityout of 100 · 30% of the final score95.6
  2. Costout of 100 · 30%49.3
  3. Promoting interoperabilityout of 100 · 25%99.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Dhs Office OF Financial Services Irs Eopc Bmrc Eotc Osh Osh-PSalem, OR

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Viet Q. Bui among 8,673 psychiatry physician records in California

Viet Q. Bui, M.D. is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 33% of them.

  • NPI issued2007 · 33% of these records are older, 48% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 38% of these records are
  • Graduated2003 · median 2005 among the 3,295 with a school on file
  • Record last updated2013 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

150 psychiatry physician records list a practice address in Torrance

They are 150 of the 8,901 NPPES records with a practice address in Torrance, and 8,673 psychiatry physician records in California.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Kenneth Abjelina, MDTorrance, CA 905051649267071
  2. Peter Ampudia, MDTorrance, CA 905051700858214
  3. Manolito Fidel, MDTorrance, CA 905051326098534
  4. Jack Freinhar, M.D.Torrance, CA 905051689618878
  5. Ronald Gelfand, MDTorrance, CA 905051700845088
  6. Alan Green, M.D.Torrance, CA 905051497721260
  7. Margarita Krasnova, MDTorrance, CA 905051639240757
  8. Charles Lee, MDTorrance, CA 905051306852561

Common questions

What is Viet Q. Bui, M.D.'s NPI number?

Viet Q. Bui, M.D.'s National Provider Identifier (NPI) is 1225183270, issued on Jan 23, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Viet Q. Bui, M.D. located?

The NPPES record lists a practice address at 24050 Madison St, Torrance, CA, 90505. Phone: (310) 375-8970. Providers update this record themselves, so call before visiting.

How can I verify Viet Q. Bui, M.D.'s license?

NPPES lists California license number A89727, 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 Viet Q. Bui, M.D. prescribe under Medicare Part D?

In 2024, Viet Q. Bui, M.D. had 11 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.

What is Viet Q. Bui, M.D.'s MIPS final score?

The 2023 MIPS final score is 86.2 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.