Dr. Charles Bui, MD
- Medicare services, 2024
- 25
- Medicare patients, 2024
- 26
- Part D claims, 2024
- 762
- Hospital affiliations
- 1
- Industry payments
- $120
- Practice address
- 25825 South Vermont Avenue, Harbor City, CA 90710
- Practice phone
- Call (310) 325-5111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Charles Bui is a hospitalist in Harbor City, California
Dr. Bui practices at Kaiser Permanente South Bay Medical Center in Harbor City, California, part of Kaiser Permanente.
Dr. Bui's NPI, 1013100338, was assigned on August 21, 2007. Dr. Bui graduated from University of Wisconsin School of Medicine in 2006. Dr. Bui holds California license A101681.
- NPI
- 1013100338NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6800934282
- NPI enumeration date
- August 21, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (310) 325-5111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Charles Bui practices at Kaiser Permanente South Bay Medical Center in Harbor City, California
Dr. Bui's primary practice is Kaiser Permanente South Bay Medical Center, at 25825 South Vermont Avenue, Harbor City, CA 90710 in Los Angeles County. The practice phone is (310) 325-5111.
- Kaiser Permanente South Bay Medical Center25825 South Vermont Avenue, Harbor City, CA 90710 · Los Angeles CountyPhone(310) 325-5111
Source: Dmand AI Affiliation Data
Dr. Charles Bui is affiliated with 1 site of care and 1 medical group
Dr. Bui's primary practice is Kaiser Permanente South Bay Medical Center in Harbor City, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Charles Bui's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bui practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente South Bay Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Charles Bui is one of 3,186 hospitalists in California
Hospitalist is Dr. Bui's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Bui is licensed in California.
Specialties and state licenses
- Hospitalist, CaliforniaPrimary
Hospitalists near Dr. Bui
Counts of hospitalists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Charles Bui billed Medicare for 25 services in 2024
CMS data shows 25 Medicare services from Dr. Bui across 1 procedure code in 2024, for 26 Medicare patients. Medicare paid $2,347 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Bui's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 372024: 2532%
Dr. Bui compared with the California median for hospitalists, 2024
- Dr. Bui
- California median
- Medicare services
- 25vs 43094% below
- Medicare patients
- 26vs 20187% below
- Part D claims
- 475vs 696.9 times
Medians across 2,991 hospitalists in California with Dmand AI profiles that report each measure.
Dr. Bui's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Charles Bui treated 26 Medicare patients in 2024, average age 72
CMS counts 26 Medicare patients who saw Dr. Bui in 2024. The largest group is 65 to 74, with 12 patients. 75% of them have high blood pressure, and 73% have high cholesterol. 58% are also on Medicaid. Their average risk score is 3.29, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Bui's median patient age at 72, with 56% women.
Dr. Bui's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Bui's Medicare patients by sex, 2024
- Women1142%
- Men1558%
Chronic conditions among Dr. Bui's Medicare patients, 2024
- High blood pressure75%
- High cholesterol73%
- Diabetes65%
- Atrial fibrillation50%
- Chronic kidney disease50%
- Heart failure50%
Share of Medicare patients with each condition. A patient can have several.
Dr. Bui's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Charles Bui wrote 762 Medicare Part D claims in 2024
In 2024, Dr. Bui wrote 762 Medicare Part D claims for 261 patients. 81% of them were for generic drugs. CMS names the drug for 475 of them, across 22 drugs with 11 or more claims each, at $19,102 in total drug cost. In 2023, CMS named 384 claims across 18 drugs.
Dr. Bui's Part D claims by kind of drug, 2024
- Generic618 claims81%
- Brand-name and other144 claims19%
Dr. Bui's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Bui's Part D claims, 2024
- Opioids6%46 of 762 claims
- Antibiotics12%88 of 762 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3842024: 47524%
Drugs named by CMS: 22 in 2024, 18 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Charles Bui takes part in Medicare
Dr. Bui accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Charles Bui received $120 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Bui from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Teva Pharmaceuticals USA, Inc. paid the most, $120.
Companies that paid Dr. Bui the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Charles Bui graduated from University of Wisconsin School of Medicine
Dr. Bui graduated from University of Wisconsin School of Medicine in 2006.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Charles Bui's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Charles Bui
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Charles Bui's NPI number?
Dr. Charles Bui's NPI number is 1013100338. It was assigned on August 21, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Charles Bui?
Dr. Charles Bui is a hospitalist in Harbor City, California. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Charles Bui practice?
Dr. Bui practices at 25825 South Vermont Avenue, Harbor City, CA 90710. Dr. Bui's primary practice is Kaiser Permanente South Bay Medical Center in Harbor City, California, part of Kaiser Permanente.
What is Dr. Charles Bui's office phone number?
The practice phone on file for Dr. Bui is (310) 325-5111.
What is Dr. Charles Bui's medical license number?
Dr. Bui holds California license A101681.
Which hospitals is Dr. Charles Bui affiliated with?
Dr. Bui practices at Kaiser Permanente South Bay Medical Center in Harbor City, California.
What medical group is Dr. Charles Bui part of?
Dr. Bui is linked to Southern California Permanente Medical Group.
Does Dr. Charles Bui accept Medicare?
Yes. CMS data shows Dr. Bui billed Medicare for 25 services in 2024, and Dr. Bui accepts Medicare assignment.
How many Medicare patients does Dr. Charles Bui see?
CMS counts 26 Medicare patients who saw Dr. Bui in 2024, with an average age of 72.
What services does Dr. Charles Bui bill to Medicare?
In 2024, Dr. Bui's most billed Medicare services were hospital inpatient care (99233).
Show 4 more questionsShow fewer questions
Where did Dr. Charles Bui go to medical school?
Dr. Bui graduated from University of Wisconsin School of Medicine in 2006.
What drugs does Dr. Charles Bui prescribe most?
In 2024 Medicare Part D data, Dr. Bui's most prescribed drugs by claims were Furosemide, Albuterol Sulfate Hfa and Hydrocodone-Acetaminophen.
Has Dr. Charles Bui received payments from drug or device companies?
CMS Open Payments shows $120 in general payments to Dr. Bui from 1 company from 2016 to 2016. The largest total came from Teva Pharmaceuticals USA, Inc.
How long has Dr. Charles Bui been practicing?
Dr. Bui graduated from medical school in 2006, 20 years ago.
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