Brian B. Lo, MD Inc.
NPI 1558387340 · Internal Medicine Physician · Irvine, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian B. Lo, MD Inc. is a Internal Medicine Physician organization in Irvine, CA (NPI 1558387340).
Provider details
- NPI number
- 1558387340
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Kristie Lo, Coo/Practice Manager(949) 503-5112
- License
- A68666 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-14
- Last updated
- 2025-03-31
- Certified
- 2025-03-31
Frequently asked questions
- What is Brian B. Lo, MD Inc.'s NPI number?
- Brian B. Lo, MD Inc.'s National Provider Identifier (NPI) is 1558387340, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Brian B. Lo, MD Inc.?
- Brian B. Lo, MD Inc. is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Brian B. Lo, MD Inc. located?
- Brian B. Lo, MD Inc.'s practice location on file with NPPES is 7545 Irvine Center Dr Ste 200, Irvine, CA 92618-2933.
- What is Brian B. Lo, MD Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Brian B. Lo, MD Inc. is (949) 503-5112.
- Does Brian B. Lo, MD Inc. accept Medicare?
- Brian B. Lo, MD Inc. is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Brian B. Lo, MD Inc.?
- The authorized official listed on Brian B. Lo, MD Inc.'s NPPES record is Kristie Lo, Coo/Practice Manager. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Brian B. Lo, MD Inc.'s NPI active?
- Yes — Brian B. Lo, MD Inc.'s NPI (1558387340) is active in the NPPES registry as of the last update on 2025-03-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.