Chung Bui, M.D.
NPI 1427143072 · Family Medicine Physician · Westminster, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chung Bui, M.D. is a Family Medicine Physician provider in Westminster, CA (NPI 1427143072).
Provider details
- NPI number
- 1427143072
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A43172 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
477 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 190 | $98 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 100 | $68 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 87 | $138 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 56 | $101 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 44 | $67 |
Typical Medicare-allowed amounts for these services range $67–$138 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 93 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 516 | 154 |
| Losartan Potassium | 334 | 109 |
| Amlodipine Besylate | 306 | 99 |
| Metoprolol Succinate | 279 | 89 |
| Empagliflozinbrand: Jardiance | 249 | 56 |
| Metformin Hclbrand: Metformin Hcl Er | 237 | 77 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,218 across 40 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-03
- Last updated
- 2007-07-08
Frequently asked questions
- What is Chung Bui's NPI number?
- Chung Bui's National Provider Identifier (NPI) is 1427143072, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chung Bui's specialty?
- Chung Bui is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Chung Bui located?
- Chung Bui's practice location on file with NPPES is 10301 Bolsa Avenue, Westminster, CA 92683-6784.
- What is Chung Bui's phone number?
- The practice phone number listed in the NPPES registry for Chung Bui is (714) 531-2203.
- Does Chung Bui accept Medicare?
- Chung Bui is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chung Bui's NPI active?
- Yes — Chung Bui's NPI (1427143072) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.