Brian Koffman, MD
NPI 1326049164 · Family Medicine Physician · Diamond Bar, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian Koffman, MD is a Family Medicine Physician provider in Diamond Bar, CA (NPI 1326049164).
Provider details
- NPI number
- 1326049164
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G36410 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 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.
$28,332 across 15 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
- 2005-08-02
- Last updated
- 2018-09-19
Frequently asked questions
- What is Brian Koffman's NPI number?
- Brian Koffman's National Provider Identifier (NPI) is 1326049164, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Koffman's specialty?
- Brian Koffman is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Koffman located?
- Brian Koffman's practice location on file with NPPES is 1514 Valley Vista Dr, Diamond Bar, CA 91765-3929.
- What is Brian Koffman's phone number?
- The practice phone number listed in the NPPES registry for Brian Koffman is (909) 860-1144.
- Does Brian Koffman accept Medicare?
- Brian Koffman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian Koffman's NPI active?
- Yes — Brian Koffman's NPI (1326049164) is active in the NPPES registry as of the last update on 2018-09-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.