Brian Sun Leo, M.D.
Family Medicine Physician · Vacaville, CA
Brian Sun Leo, M.D. is a family medicine physician with a practice address in Vacaville, California, and NPI 1891970745, issued on Jan 9, 2008. Check the license (California A101701, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Brian Sun Leo
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A101701 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2100 Peabody RD, Vacaville, CA 95687
- Phone
- (707) 451-0182
- Enumerated
- Jan 9, 2008
- Record last updated
- Nov 22, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20090914000678); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 2100 Peabody RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Brian Sun Leo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A101701Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average family medicine physician in 2024
172 Medicare Part D claims for 110 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Ibuprofen12 claims
- Cephalexin11 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 80.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- County OF Santa ClaraSan Jose, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brian Sun Leo among 17,133 family medicine physician records in California
Brian Sun Leo, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 53% of them.
- NPI issued2008 · 53% of these records are older, 42% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1991 · median 2005 among the 10,652 with a school on file
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
56 family medicine physician records list a practice address in Vacaville
They are 56 of the 1,903 NPPES records with a practice address in Vacaville, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Vacaville → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Marsha Alexander, M.D.Vacaville, CA 956871275692055
- Lesley Carmichael, DOVacaville, CA 956871184848863
- Kam Chan, D.O.Vacaville, CA 956871730304502
- Ana Cherry, M.D.Vacaville, CA 956871679656573
- Joshua Connor, M.D.Vacaville, CA 956871326402736
- Nnenna Ikegbu, M.D.Vacaville, CA 956871801077680
- Shanaz Khambatta, D.O.Vacaville, CA 956871760587570
- David Mathis, M.D.Vacaville, CA 956871285666081
Common questions
What is Brian Sun Leo, M.D.'s NPI number?
Brian Sun Leo, M.D.'s National Provider Identifier (NPI) is 1891970745, issued on Jan 9, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Brian Sun Leo, M.D. located?
The NPPES record lists a practice address at 2100 Peabody RD, Vacaville, CA, 95687. Phone: (707) 451-0182. Providers update this record themselves, so call before visiting.
How can I verify Brian Sun Leo, M.D.'s license?
NPPES lists California license number A101701, 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 Sun Leo, M.D. prescribe under Medicare Part D?
In 2024, Brian Sun Leo, M.D. had 172 Medicare Part D claims for 110 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Brian Sun Leo, M.D.'s MIPS final score?
The 2023 MIPS final score is 80.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.