Roy Kazuo Sumida, M.D.
Vascular & Interventional Radiology Physician · Santa Rosa, CA
Roy Kazuo Sumida, M.D. is a vascular & interventional radiology physician with a practice address in Santa Rosa, California, and NPI 1851471601, issued on Oct 16, 2006. Check the license (California G85276, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Roy Kazuo Sumida
- Credential
- M.D.
- Primary taxonomy
- Vascular & Interventional Radiology Physician 2085R0204X
- License number
- G85276 CA
Self-reported in NPPES; status is on the state search - Practice location
- 121 Sotoyome St, Santa Rosa, CA 95405
- Phone
- (707) 546-4062
- Enumerated
- Oct 16, 2006
- Record last updated
- Jan 14, 2022
- Fax
- (707) 525-4097
- Medicaid ID
- 00G852760 CA
- Medicare enrollment
- Enrolled (PECOS I20080521000332); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 1989
- Entity
- Type 1 · individual
8 nearest vascular & interventional radiology physician records → All 599 in California → Look up another NPI →
Also registered at 121 Sotoyome St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Susan Bishop, N.P.Nurse Practitioner1588744353
- Melissa Bitanga, MGC, CGCGenetic Counselor (M.S.)1427640465
- Scott Booth, M.D.Diagnostic Radiology Physician1841237666
- Brendan Bottari, M.D.Diagnostic Radiology Physician1174611107
- Marek Bozdech, M.D.Hematology & Oncology Physician1679590509
- Michael Caccavale, MDVascular & Interventional Radiology Physician1518164425
Verify Roy Kazuo Sumida in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G85276Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Permanente Medical Group IncSanta Rosa, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Roy Kazuo Sumida among 599 vascular & interventional radiology physician records in California
Roy Kazuo Sumida, M.D. is one of 599 vascular & interventional radiology physician records with a practice address in California. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 66% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 83% of these records are
- Graduated1989 · median 2007 among the 497 with a school on file
- Record last updated2022 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0204X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Vascular & Interventional Radiology Physician providers in California
There are 599 vascular & interventional radiology physician records in California.
All 599 in California → Every provider in Santa Rosa → Vascular & Interventional Radiology Physician nationwide →
The 8 vascular & interventional radiology physician records with the nearest ZIP codes
- Michael Caccavale, MDSanta Rosa, CA 954051518164425
- Raymond Conway, M.D.Santa Rosa, CA 954051578797601
- Alexander Page, M.D.Santa Rosa, CA 954051225471337
- Gary Shaw, M.D.Santa Rosa, CA 954051568542306
- Dhairyasheel PatelOakdale, CA 953611568857571
- Joanne Lim, MDModesto, CA 953561255419081
- Damian Caci, M.D.Modesto, CA 953551427339134
- Stephen Liu, M.D.Modesto, CA 953551306889860
Common questions
What is Roy Kazuo Sumida, M.D.'s NPI number?
Roy Kazuo Sumida, M.D.'s National Provider Identifier (NPI) is 1851471601, issued on Oct 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Roy Kazuo Sumida, M.D. located?
The NPPES record lists a practice address at 121 Sotoyome St, Santa Rosa, CA, 95405. Phone: (707) 546-4062. Providers update this record themselves, so call before visiting.
How can I verify Roy Kazuo Sumida, M.D.'s license?
NPPES lists California license number G85276, 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.
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.