Chau Quynh Bui, D.O.
Hospitalist Physician · Redondo Beach, CA
Chau Quynh Bui, D.O. is a hospitalist physician with a practice address in Redondo Beach, California, and NPI 1194142562, issued on Mar 24, 2014. Check the license (California 20A14247, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Chau Quynh Bui
- Credential
- D.O.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- 20A14247 CA
Self-reported in NPPES; status is on the state search - Practice location
- 514 N Prospect Ave Ste 103, Redondo Beach, CA 90277
- Phone
- (310) 937-8555
- Enumerated
- Mar 24, 2014
- Record last updated
- Jan 2, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (310) 937-8556
- Medicare enrollment
- Enrolled (PECOS I20170203001918); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 514 N Prospect Ave Ste 103
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mohammad Abdullah, M.DFamily Medicine Physician1477968428
- Ali AljiduiFamily Medicine Physician1518596584
- Andrea Borba, MDDermatology Physician1467081091
- Jaime La Charite, M.D., M.P.H.Internal Medicine Physician1437680378
- Gino Melillo, FNP PMHNPFamily Nurse Practitioner1306524343
- Katherine PangFamily Medicine Physician1053803627
Verify Chau Quynh Bui in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A14247Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.0 times the Medicare Part D claims of the average hospitalist physician in 2024
1,550 Medicare Part D claims for 191 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Atorvastatin Calcium130 claims
- Losartan Potassium79 claims
- Amlodipine Besylate73 claims
- Jardiance70 claims
- Triamcinolone Acetonide57 claims
- Metformin Hcl Er55 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: $2,428.93
29 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 7,324 providers of this specialty with any payment received $494.84 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.
Bills Medicare through one group practice
- Dignity Health Medical FoundationNorthridge, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Chau Quynh Bui among 3,099 hospitalist physician records in California
Chau Quynh Bui, D.O. is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 61% of them.
- NPI issued2014 · 61% of these records are older, 34% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2014 · median 2010 among the 2,505 with a school on file
- Record last updated2020 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in Redondo Beach → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Michael Azarkh, MDRedondo Beach, CA 902771790958452
- Divesh Goel, MDRedondo Beach, CA 902771578026050
- Ronak Garg, MDRancho Palos Verdes, CA 902751477828267
- Melissa Mueller, M.D.Manhattan Beach, CA 902661932496551
- Jagdeep Tung, MDManhattan Beach, CA 902661013973783
- David Lee, D.O.Marina Del Rey, CA 902921770994659
- Keyur Patel, M.D.Marina Del Rey, CA 902921558595355
- Joseph Phan, MDMarina Del Rey, CA 902921760427223
Common questions
What is Chau Quynh Bui, D.O.'s NPI number?
Chau Quynh Bui, D.O.'s National Provider Identifier (NPI) is 1194142562, issued on Mar 24, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Chau Quynh Bui, D.O. located?
The NPPES record lists a practice address at 514 N Prospect Ave Ste 103, Redondo Beach, CA, 90277. Phone: (310) 937-8555. Providers update this record themselves, so call before visiting.
How can I verify Chau Quynh Bui, D.O.'s license?
NPPES lists California license number 20A14247, 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 Chau Quynh Bui, D.O. prescribe under Medicare Part D?
In 2024, Chau Quynh Bui, D.O. had 1,550 Medicare Part D claims for 191 beneficiaries; the average among hospitalist physician prescribers was 521. 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.