Dr. Loc Dac Bui, MD
- Medicare services, 2024
- 1,258
- Medicare patients, 2024
- 87
- Part D claims, 2024
- 4,245
- Industry payments
- $7,216
- Affiliated sites
- 2
- Practice address
- 8900 Bolsa Ave, Westminster, CA 92683
- Practice phone
- Call (714) 897-2623
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Loc Dac Bui M.D., a Professional Corporation
Westminster, California
Find Dr. Bui's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Loc Dac Bui is an internist in Westminster, California
Dr. Bui practices at Loc Dac Bui M.D., a Professional Corporation in Westminster, California.
Dr. Bui's NPI, 1023081387, was assigned on February 8, 2006. Dr. Bui graduated from Ho Chi Minh City Medicine and Pharmacy University in 1972. Dr. Bui holds California license A50198.
- NPI
- 1023081387NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3577759034
- NPI enumeration date
- February 8, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (714) 897-2623
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 80
- Medical school graduation
- 1972
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Loc Dac Bui practices at Loc Dac Bui M.D., a Professional Corporation in Westminster, California
Dr. Bui's primary practice is Loc Dac Bui M.D., a Professional Corporation, at 8900 Bolsa Ave, Westminster, CA 92683 in Orange County. The practice phone is (714) 897-2623.
- Loc Dac Bui M.D., a Professional Corporation8900 Bolsa Ave, Westminster, CA 92683 · Orange CountyPhone(714) 897-2623
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Loc Dac Bui is affiliated with 3 sites of care and 2 medical groups
Dr. Bui's primary practice is Loc Dac Bui M.D., a Professional Corporation in Westminster, California. The medical group on file is Family Choice Medical Group. Dmand AI also links Dr. Bui to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Loc Dac Bui's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bui practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Loc Dac Bui M.D., a Professional Corporation | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Loc Dac Bui is one of 16,751 internists in California
Internal medicine is Dr. Bui's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Bui is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acid reflux, acute gastroduodenitis, acute mini-stroke (TIA), alzheimer's disease, aneurysm, anxiety, arthritis and asthma among the conditions Dr. Bui treats.
Internists near Dr. Bui
Counts of internists 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. Loc Dac Bui billed Medicare for 1,258 services in 2024
CMS data shows 1,258 Medicare services from Dr. Bui across 9 procedure codes in 2024, for 87 Medicare patients. Medicare paid $95,590 for them. Every service was in an office.
Dr. Bui's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,0382024: 9657%
- Surgery
- 2023: 1392024: 1316%
- Other services
- 2023: 972024: 889%
- Tests and treatments
- 2023: 1172024: 7437%
Dr. Bui compared with the California median for internists, 2024
- Dr. Bui
- California median
- Medicare services
- 1,258vs 3613.5 times
- Medicare patients
- 87vs 15142% below
- Part D claims
- 3,761vs 4218.9 times
Medians across 15,815 internists 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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Bui and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Loc Dac Bui treated 87 Medicare patients in 2024, average age 78
CMS counts 87 Medicare patients who saw Dr. Bui in 2024. The largest group is 75 to 84, with 37 patients. 75% of them have diabetes, and 75% have high blood pressure. Their average risk score is 1.43, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Bui's median patient age at 70, with 47% 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
- Women4046%
- Men4754%
Chronic conditions among Dr. Bui's Medicare patients, 2024
- Diabetes75%
- High blood pressure75%
- High cholesterol75%
- Arthritis66%
- Chronic kidney disease39%
- Ischemic heart disease22%
- Osteoporosis22%
- COPD20%
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 70
Patient panel by sex, all payers
- Women47%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Loc Dac Bui wrote 4,245 Medicare Part D claims in 2024
In 2024, Dr. Bui wrote 4,245 Medicare Part D claims for 169 patients. 87% of them were for generic drugs. CMS names the drug for 3,761 of them, across 74 drugs with 11 or more claims each, at $280,232 in total drug cost. In 2023, CMS named 4,275 claims across 79 drugs.
Dr. Bui's Part D claims by kind of drug, 2024
- Generic3,708 claims87%
- Brand-name510 claims12%
- Other27 claims1%
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
- Opioids1%32 of 4,245 claims
- Antibiotics2%90 of 4,245 claims
- Antipsychotics, patients 65 and over1%40 of 4,245 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: 4,2752024: 3,76112%
Drugs named by CMS: 74 in 2024, 79 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. Loc Dac Bui takes part in Medicare
Dr. Bui accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Loc Dac Bui received $7,216 in industry payments from 2016 to 2025
CMS Open Payments shows 90 general payments to Dr. Bui from 27 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Gilead Sciences, Inc. paid the most, $1,751.
General payments to Dr. Bui by program year, 2016 to 2025
Companies that paid Dr. Bui the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Loc Dac Bui graduated from Ho Chi Minh City Medicine and Pharmacy University
Dr. Bui graduated from Ho Chi Minh City Medicine and Pharmacy University in 1972.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Loc Dac Bui accepts plans from 8 insurance carriers
Dr. Bui is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Molina
- Regence Health Plans
- CMS Medicare
- Humana
Plan types Dr. Bui accepts, by number of carriers
- Medicare7
- PPO5
- HMO4
- POS2
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Loc Dac 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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)Doctors and Clinicians Utilization Data (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 |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Loc Dac 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. Loc Dac Bui's NPI number?
Dr. Loc Dac Bui's NPI number is 1023081387. It was assigned on February 8, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Loc Dac Bui?
Dr. Loc Dac Bui is an internist in Westminster, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Loc Dac Bui practice?
Dr. Bui practices at 8900 Bolsa Ave, Westminster, CA 92683. Dr. Bui's primary practice is Loc Dac Bui M.D., a Professional Corporation in Westminster, California. Dmand AI also links Dr. Bui to 2 group practices and clinics and 1 medical group.
What is Dr. Loc Dac Bui's office phone number?
The practice phone on file for Dr. Bui is (714) 897-2623.
What is Dr. Loc Dac Bui's medical license number?
Dr. Bui holds California license A50198.
What medical group is Dr. Loc Dac Bui part of?
Dr. Bui is linked to Family Choice Medical Group. Dmand AI links Dr. Bui to 1 more medical group.
Does Dr. Loc Dac Bui accept Medicare?
Yes. CMS data shows Dr. Bui billed Medicare for 1,258 services in 2024, and Dr. Bui accepts Medicare assignment.
How many Medicare patients does Dr. Loc Dac Bui see?
CMS counts 87 Medicare patients who saw Dr. Bui in 2024, with an average age of 78.
What services does Dr. Loc Dac Bui bill to Medicare?
In 2024, Dr. Bui's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and surgery: heart and blood vessels (36415).
Where did Dr. Loc Dac Bui go to medical school?
Dr. Bui graduated from Ho Chi Minh City Medicine and Pharmacy University in 1972.
Show 4 more questionsShow fewer questions
What drugs does Dr. Loc Dac Bui prescribe most?
In 2024 Medicare Part D data, Dr. Bui's most prescribed drugs by claims were Atorvastatin Calcium, Losartan Potassium and Amlodipine Besylate.
Has Dr. Loc Dac Bui received payments from drug or device companies?
CMS Open Payments shows $7,216 in general payments to Dr. Bui from 27 companies from 2016 to 2025. The largest total came from Gilead Sciences, Inc.
How long has Dr. Loc Dac Bui been practicing?
Dr. Bui graduated from medical school in 1972, 54 years ago.
What insurance does Dr. Loc Dac Bui accept?
Dr. Bui is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
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