Brian Diep, MD
NPI 1144240631 · Family Medicine Physician · Alpine, CA
Brian Diep, MD is a Family Medicine Physician provider in Alpine, CA (NPI 1144240631).
Provider details
- NPI number
- 1144240631
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 34428 (AZ)
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
349 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 | 311 | $137 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 38 | $9 |
Typical Medicare-allowed amounts for these services range $9–$137 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 166 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 784 | 277 |
| Atorvastatin Calcium | 731 | 255 |
| Gabapentin | 565 | 177 |
| Rosuvastatin Calcium | 464 | 156 |
| Omeprazole | 441 | 183 |
| Losartan Potassium | 436 | 149 |
| Celecoxib | 396 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$29 across 2 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
Additional practice locations (1)
- 2051 W Warner Rd Ste 5Chandler, AZ 85224-8700Phone: (480) 399-7957
Registry dates
- Enumerated
- 2006-07-20
- Last updated
- 2022-07-21
Frequently asked questions
- What is Brian Diep's NPI number?
- Brian Diep's National Provider Identifier (NPI) is 1144240631, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Diep's specialty?
- Brian Diep is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Diep located?
- Brian Diep's practice location on file with NPPES is 4058 Willows Rd, Alpine, CA 91901-1668.
- What is Brian Diep's phone number?
- The practice phone number listed in the NPPES registry for Brian Diep is (619) 445-1188.
- Is Brian Diep's NPI active?
- Yes — Brian Diep's NPI (1144240631) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.