Charles Bui, M.D.
Hospitalist Physician · Harbor City, CA
Charles Bui, M.D. is a hospitalist physician with a practice address in Harbor City, California, and NPI 1013100338, issued on Aug 21, 2007. Check the license (California A101681, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Charles Bui
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- A101681 CA
Self-reported in NPPES; status is on the state search - Practice location
- 25825 Vermont Ave, Harbor City, CA 90710
- Phone
- (310) 517-4027
- Enumerated
- Aug 21, 2007
- Record last updated
- Dec 8, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20091104000363); accepts Medicare assignment
- Medical or professional school
- University Of Wisconsin School Of Medicine, 2006
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 25825 Vermont Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Christiana Abraham, NPFamily Nurse Practitioner1447855911
- Kamren AckermanPhysical Therapist1104412352
- Bradley Ackerson, MDPediatric Infectious Diseases Physician1255490918
- Yossef Aelony, MDPulmonary Disease Physician1619178597
- Lisa Agustines, MDObstetrics & Gynecology Physician1750452736
Verify Charles Bui in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A101681Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% more Medicare Part D claims than the average hospitalist physician in 2024
762 Medicare Part D claims for 261 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 46 claims were for opioids.
Most prescribed
- Furosemide48 claims
- Albuterol Sulfate Hfa43 claims
- Hydrocodone-Acetaminophen36 claims
- Amlodipine Besylate33 claims
- Amoxicillin-Clavulanate Potass27 claims
- Prednisone25 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.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupHarbor City, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Charles Bui among 3,099 hospitalist physician records in California
Charles Bui, M.D. 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 2007, is newer than 27% of them.
- NPI issued2007 · 27% of these records are older, 66% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2006 · median 2010 among the 2,505 with a school on file
- Record last updated2021 · 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 Harbor City → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- James Chou, M.D.Harbor City, CA 907101396916003
- Ali Ezzat, MDHarbor City, CA 907101932781259
- Hector Miguel, M.D.Harbor City, CA 907101457618969
- Jason Portillo, M.D.Harbor City, CA 907101427329176
- Carla Toms, MDHarbor City, CA 907101730258336
- Shakir UllahHarbor City, CA 907101679149876
- Gunjot Kaur, MDCerritos, CA 907031881155711
- Moustafa Aboshady, M.D.Los Alamitos, CA 907201003127655
Common questions
What is Charles Bui, M.D.'s NPI number?
Charles Bui, M.D.'s National Provider Identifier (NPI) is 1013100338, issued on Aug 21, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Charles Bui, M.D. located?
The NPPES record lists a practice address at 25825 Vermont Ave, Harbor City, CA, 90710. Phone: (310) 517-4027. Providers update this record themselves, so call before visiting.
How can I verify Charles Bui, M.D.'s license?
NPPES lists California license number A101681, 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 Charles Bui, M.D. prescribe under Medicare Part D?
In 2024, Charles Bui, M.D. had 762 Medicare Part D claims for 261 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.