Kenneth Leo Shan, MD
Gastroenterology Physician · Arcadia, CA
Kenneth Leo Shan, MD is a gastroenterology physician with a practice address in Arcadia, California, and NPI 1629605431, issued on Mar 24, 2020. Check the license (California 185090, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kenneth Leo Shan
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 185090 CA
Self-reported in NPPES; status is on the state search - Practice location
- 612 W Duarte RD Ste 601, Arcadia, CA 91007
- Phone
- (818) 659-5887
- Enumerated
- Mar 24, 2020
- Record last updated
- Mar 12, 2026
- Fax
- (320) 640-1309
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Also registered at 612 W Duarte RD Ste 601
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sunny Lo, D.O.Gastroenterology Physician1891053187
Verify Kenneth Leo Shan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 185090Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average gastroenterology physician in 2024
121 Medicare Part D claims for 32 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 40% of claims.
Most prescribed
- Vemlidy25 claims
- Ursodiol13 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.
Kenneth Leo Shan among 2,140 gastroenterology physician records in California
Kenneth Leo Shan, MD is one of 2,140 gastroenterology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 98% of them.
- NPI issued2020 · 98% of these records are older, 1% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 72% of these records are
- Record last updated2026 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in California
There are 2,140 gastroenterology physician records in California.
All 2,140 in California → Every provider in Arcadia → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Michael Chu, M.D.Arcadia, CA 910071952491805
- Jacob Korula, M.D.Arcadia, CA 910071295732568
- Hanson Lee, M.D.Arcadia, CA 910071730181116
- Sunny Lo, D.O.Arcadia, CA 910071891053187
- Donald Portocarrero, D.O.Arcadia, CA 910071841503570
- George Thomas, M.D.Arcadia, CA 910071649293150
- Elias Tarakji, M.D.Arcadia, CA 910061467454835
- Donald David, MDDuarte, CA 910101588767131
Common questions
What is Kenneth Leo Shan, MD's NPI number?
Kenneth Leo Shan, MD's National Provider Identifier (NPI) is 1629605431, issued on Mar 24, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Kenneth Leo Shan, MD located?
The NPPES record lists a practice address at 612 W Duarte RD Ste 601, Arcadia, CA, 91007. Phone: (818) 659-5887. Providers update this record themselves, so call before visiting.
How can I verify Kenneth Leo Shan, MD's license?
NPPES lists California license number 185090, 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 Kenneth Leo Shan, MD prescribe under Medicare Part D?
In 2024, Kenneth Leo Shan, MD had 121 Medicare Part D claims for 32 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.