Kyi K. San, M.D.
Internal Medicine Physician · Downey, CA
Kyi K. San, M.D. is an internal medicine physician with a practice address in Downey, California, and NPI 1245438332, issued on Jul 10, 2007. Check the license (California A98231, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kyi K. San
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A98231 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9701 Lakewood Blvd, Downey, CA 90240
- Phone
- (562) 861-8999
- Enumerated
- Jul 10, 2007
- Record last updated
- Feb 8, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (562) 861-0999
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Kyi K. San in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A98231Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average internal medicine physician in 2024
845 Medicare Part D claims for 337 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.
Most prescribed
- Atorvastatin Calcium59 claims
- Levothyroxine Sodium44 claims
- Omeprazole44 claims
- Gabapentin37 claims
- Losartan Potassium32 claims
- Metformin Hcl29 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.
Kyi K. San among 17,696 internal medicine physician records in California
Kyi K. San, M.D. 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 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2012 · 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).
114 internal medicine physician records list a practice address in Downey
They are 114 of the 3,607 NPPES records with a practice address in Downey, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Downey → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Sameer Amin, MDDowney, CA 902401326164633
- Jose Anguiano, M.D.Downey, CA 902401841637576
- Hassan Chahine, MDDowney, CA 902401518326933
- Sepideh Chegini, M.D.Downey, CA 902401871547075
- Stanley Crittenden, M.D.Downey, CA 902401477764678
- John-Khoa Do, D.O.Downey, CA 902401710908223
- Paul Gallardo, MDDowney, CA 902401740392588
- Sachin Jain, MDDowney, CA 902401750540183
Common questions
What is Kyi K. San, M.D.'s NPI number?
Kyi K. San, M.D.'s National Provider Identifier (NPI) is 1245438332, issued on Jul 10, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Kyi K. San, M.D. located?
The NPPES record lists a practice address at 9701 Lakewood Blvd, Downey, CA, 90240. Phone: (562) 861-8999. Providers update this record themselves, so call before visiting.
How can I verify Kyi K. San, M.D.'s license?
NPPES lists California license number A98231, 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 Kyi K. San, M.D. prescribe under Medicare Part D?
In 2024, Kyi K. San, M.D. had 845 Medicare Part D claims for 337 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.