Brian Diep, DO
NPI 1821738147 · Internal Medicine Physician · Loma Linda, CA
Brian Diep, DO is a Internal Medicine Physician provider in Loma Linda, CA (NPI 1821738147).
Provider details
- NPI number
- 1821738147
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 21795 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
4 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$37 across 1 record (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
- 2022-04-01
- Last updated
- 2023-10-02
- Certified
- 2023-02-10
Frequently asked questions
- What is Brian Diep's NPI number?
- Brian Diep's National Provider Identifier (NPI) is 1821738147, 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 Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Diep located?
- Brian Diep's practice location on file with NPPES is 11234 Anderson St, Loma Linda, CA 92354-2804.
- What is Brian Diep's phone number?
- The practice phone number listed in the NPPES registry for Brian Diep is (909) 558-4074.
- Is Brian Diep's NPI active?
- Yes — Brian Diep's NPI (1821738147) is active in the NPPES registry as of the last update on 2023-10-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.