Brian Bai, MD
NPI 1144424102 · Family Medicine Physician · Oxnard, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian Bai, MD is a Family Medicine Physician provider in Oxnard, CA (NPI 1144424102).
Provider details
- NPI number
- 1144424102
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A101489 (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
963 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 538 | $143 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 122 | $148 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 70 | $22 |
| Administration of Influenza Virus VaccineG0008 | 59 | $35 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 42 | $143 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 31 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 128 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 669 | 206 |
| Atorvastatin Calcium | 466 | 144 |
| Losartan Potassium | 372 | 104 |
| Levothyroxine Sodium | 315 | 84 |
| Metformin Hcl | 311 | 105 |
| Gabapentin | 250 | 62 |
| Amlodipine Besylate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$70 across 4 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
- 2007-06-13
- Last updated
- 2024-11-08
- Certified
- 2024-11-08
Frequently asked questions
- What is Brian Bai's NPI number?
- Brian Bai's National Provider Identifier (NPI) is 1144424102, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Bai's specialty?
- Brian Bai is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Bai located?
- Brian Bai's practice location on file with NPPES is 331 S C St, Oxnard, CA 93030-5824.
- What is Brian Bai's phone number?
- The practice phone number listed in the NPPES registry for Brian Bai is (805) 247-1035.
- Does Brian Bai accept Medicare?
- Brian Bai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian Bai's NPI active?
- Yes — Brian Bai's NPI (1144424102) is active in the NPPES registry as of the last update on 2024-11-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.