Kenneth S. Poon
Hematology & Oncology Physician · San Leandro, CA
Kenneth S. Poon is a hematology & oncology physician with a practice address in San Leandro, California, and NPI 1366768541, issued on Apr 13, 2010. Check the license (California A139907, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kenneth S. Poon
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- A139907 CA
DR.0077442 CO
268932 NY
Self-reported in NPPES; status is on the state search - Practice location
- 2500 Merced St, San Leandro, CA 94577
- Phone
- (510) 454-2760
- Enumerated
- Apr 13, 2010
- Record last updated
- May 1, 2026
- Medicare enrollment
- Enrolled (PECOS I20160824001120); accepts Medicare assignment
- Medical or professional school
- University Of Chicago, Pritzker School Of Medicine, 2010
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Also registered at 2500 Merced St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rabiatu Abdullah, M.D.Emergency Medicine Physician1497833248
- Scott Abramson, M.D.Neurology Physician1891873667
- Jayaprada Achanta, M.D.Anesthesiology Physician1053463851
- Kristi Adachi, PHARMDPharmacist1396456737
- Mary Grace Aguayo, CRTCertified Respiratory Therapist1467923730
- Jatinder AhluwaliaPharmacist1508391483
Verify Kenneth S. Poon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A139907Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average hematology & oncology physician in 2024
1,958 Medicare Part D claims for 204 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 13 claims were for opioids.
Most prescribed
- Lenalidomide341 claims
- Acyclovir253 claims
- Hydroxyurea178 claims
- Dexamethasone168 claims
- Pomalyst87 claims
- Prednisone59 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.
Bills Medicare through one group practice
- Permanente Medical Group IncSan Leandro, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kenneth S. Poon among 1,583 hematology & oncology physician records in California
Kenneth S. Poon is one of 1,583 hematology & oncology 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 2010, is newer than 70% of them.
- NPI issued2010 · 70% of these records are older, 28% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2010 · median 2003 among the 1,124 with a school on file
- Record last updated2026 · 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 207RH0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in California
There are 1,583 hematology & oncology physician records in California.
All 1,583 in California → Every provider in San Leandro → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Ming Kuan, M.D.San Leandro, CA 945771043279995
- Gail Wagner, M.D.San Leandro, CA 945771780756593
- Ravinder Arora, MDSan Leandro, CA 945781952307720
- Bao Lam, M.D.San Leandro, CA 945781639354970
- Ostap Melnyk, MDSan Leandro, CA 945781205834702
- Gregory Smith, M.D.St Helena, CA 945741265408447
- Swaminathan MurugappanSan Ramon, CA 945821336301852
- Amanpreet Buttar, MDDublin, CA 945681962679753
Common questions
What is Kenneth S. Poon's NPI number?
Kenneth S. Poon's National Provider Identifier (NPI) is 1366768541, issued on Apr 13, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Kenneth S. Poon located?
The NPPES record lists a practice address at 2500 Merced St, San Leandro, CA, 94577. Phone: (510) 454-2760. Providers update this record themselves, so call before visiting.
How can I verify Kenneth S. Poon's license?
NPPES lists California license number A139907, 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 S. Poon prescribe under Medicare Part D?
In 2024, Kenneth S. Poon had 1,958 Medicare Part D claims for 204 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.