Eric Michael Masao Imoto, D.O.
Hematology & Oncology Physician · San Jose, CA
Eric Michael Masao Imoto, D.O. is a hematology & oncology physician with a practice address in San Jose, California, and NPI 1396056438, issued on Jun 23, 2010. Check the license (California 20A13427, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Eric Michael Masao Imoto
- Credential
- D.O.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 20A13427 CA
Self-reported in NPPES; status is on the state search - Practice location
- 270 International Cir, San Jose, CA 95119
- Phone
- (408) 972-7000
- Enumerated
- Jun 23, 2010
- Record last updated
- Oct 18, 2022
- Medicare enrollment
- Enrolled (PECOS I20171030000632); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Also registered at 270 International Cir
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Aniamma Alex, NPNurse Practitioner1407653991
- Alaa AltahanHematology & Oncology Physician1952757684
- Paul Anderson, RRTRegistered Respiratory Therapist1215540869
- Stephania Bell, P.T.Orthopedic Physical Therapist1669526463
- Aaron BoselPhysical Therapist1043649189
- Katherine Casto, PTPhysical Therapist1013064708
Verify Eric Michael Masao Imoto in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A13427Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% more Medicare Part D claims than the average hematology & oncology physician in 2024
1,114 Medicare Part D claims for 217 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 61 claims were for opioids.
Most prescribed
- Anastrozole99 claims
- Tagrisso87 claims
- Ondansetron Hcl86 claims
- Dexamethasone82 claims
- Hydrocodone-Acetaminophen37 claims
- Potassium Chloride31 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 Jose, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Eric Michael Masao Imoto among 1,583 hematology & oncology physician records in California
Eric Michael Masao Imoto, D.O. 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 updated2022 · 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 Jose → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Alaa AltahanSan Jose, CA 951191952757684
- Jankikeerthika Dharmarpandi, MDSan Jose, CA 951191861055782
- Maria Pilar Ivanov, MDSan Jose, CA 951191700930468
- Myron Kwong, MDSan Jose, CA 951191992881403
- Michael Lee, MDSan Jose, CA 951191629631296
- Leonid Yavorkovsky, MDSan Jose, CA 951191689750119
- Tin Hla, M.D.San Jose, CA 951161326098179
- Charlene Lee, MDSan Jose, CA 951161831488337
Common questions
What is Eric Michael Masao Imoto, D.O.'s NPI number?
Eric Michael Masao Imoto, D.O.'s National Provider Identifier (NPI) is 1396056438, issued on Jun 23, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Eric Michael Masao Imoto, D.O. located?
The NPPES record lists a practice address at 270 International Cir, San Jose, CA, 95119. Phone: (408) 972-7000. Providers update this record themselves, so call before visiting.
How can I verify Eric Michael Masao Imoto, D.O.'s license?
NPPES lists California license number 20A13427, 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 Eric Michael Masao Imoto, D.O. prescribe under Medicare Part D?
In 2024, Eric Michael Masao Imoto, D.O. had 1,114 Medicare Part D claims for 217 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.