Brian B. Lo, MD
Internal Medicine Physician · Irvine, CA
Brian B. Lo, MD is an internal medicine physician with a practice address in Irvine, California, and NPI 1073501565, issued on Oct 10, 2005. Check the license (California A68666, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Brian B. Lo
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A68666 CA
Self-reported in NPPES; status is on the state search - Practice location
- 7545 Irvine Center Dr Ste 200, Irvine, CA 92618
- Phone
- (949) 503-5112
- Enumerated
- Oct 10, 2005
- Record last updated
- Mar 31, 2025
- Fax
- (949) 503-5113
- Medicare enrollment
- Enrolled (PECOS I20060428000600); accepts Medicare assignment
- Medical or professional school
- Chicago College Of Medicine And Surgery, 1995
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 7545 Irvine Center Dr Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alisha AmbeMarriage & Family Therapist1538984828
- Olivia Carr, MA, AMFT, APCCMarriage & Family Therapist1093587198
- Henry FloresDriver1831646959
- William Gordon, PH.DClinical Psychologist1699003376
- Jihyon HanMarriage & Family Therapist1780410514
- Bethany Hewitt, APCCMental Health Counselor1427860550
Verify Brian B. Lo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A68666Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average internal medicine physician in 2024
353 Medicare Part D claims for 20 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Levothyroxine Sodium24 claims
- Losartan Potassium24 claims
- Gabapentin23 claims
- Zolpidem Tartrate21 claims
- Hydrochlorothiazide20 claims
- Nitrofurantoin Mono-Macro13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Brian B. Lo among 17,696 internal medicine physician records in California
Brian B. Lo, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1995 · median 2004 among the 11,065 with a school on file
- Record last updated2025 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
155 internal medicine physician records list a practice address in Irvine
They are 155 of the 7,778 NPPES records with a practice address in Irvine, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Irvine → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Savitha Bharadwaj, M.D.Irvine, CA 926181760470926
- Juan Cabrera, M.D.Irvine, CA 926181447254792
- William Chen, M.D.Irvine, CA 926181881659142
- Subrato Ghosh, MDIrvine, CA 926181083607055
- Kambiz Karimi, M.D.Irvine, CA 926181184688475
- Sara Kim, M.D.Irvine, CA 926181912944166
- Emad Mikhail, MDIrvine, CA 926181376582957
- Viet Nguyen, D.O.Irvine, CA 926181770528515
Common questions
What is Brian B. Lo, MD's NPI number?
Brian B. Lo, MD's National Provider Identifier (NPI) is 1073501565, issued on Oct 10, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Brian B. Lo, MD located?
The NPPES record lists a practice address at 7545 Irvine Center Dr Ste 200, Irvine, CA, 92618. Phone: (949) 503-5112. Providers update this record themselves, so call before visiting.
How can I verify Brian B. Lo, MD's license?
NPPES lists California license number A68666, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Brian B. Lo, MD prescribe under Medicare Part D?
In 2024, Brian B. Lo, MD had 353 Medicare Part D claims for 20 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.