Rei Mitsuyama, MD
Internal Medicine Physician · Providence, RI
Rei Mitsuyama, MD is an internal medicine physician with a practice address in Providence, Rhode Island, and NPI 1811519408, issued on May 18, 2020. Check the license (Rhode Island MD19179, as entered in NPPES) on the Rhode Island Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Rei Mitsuyama
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- MD19179 RI
LP04836 RI
Self-reported in NPPES; status is on the state search - Practice location
- 593 Eddy St, Providence, RI 02903
- Phone
- (401) 444-4741
- Enumerated
- May 18, 2020
- Record last updated
- May 1, 2023
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,033 in Rhode Island → Look up another NPI →
Also registered at 593 Eddy St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Rei Mitsuyama in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersRhode Island Board of Medical Licensure and Discipline
Search for license MD19179Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
34 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Industry payments in 2024: $124.11
1 payment: food and beverage; the largest payer was Janssen Biotech, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Rei Mitsuyama among 1,033 internal medicine physician records in Rhode Island
Rei Mitsuyama, MD is one of 1,033 internal medicine physician records with a practice address in Rhode Island. 80% 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 74% of them.
- NPI issued2020 · 74% of these records are older, 23% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2023 · 48% 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 Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
511 internal medicine physician records list a practice address in Providence
They are 511 of the 9,647 NPPES records with a practice address in Providence, and 1,033 internal medicine physician records in Rhode Island.
All 1,033 in Rhode Island → Every provider in Providence → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Kristin Anderson, MDProvidence, RI 029031740236173
- Andrew Bostom, MDProvidence, RI 029031902850274
- Sybil Cineas, MDProvidence, RI 029031053364984
- Heinrich Elinzano, M.D.Providence, RI 029031063477032
- Rebekah Gardner, MDProvidence, RI 029031275597536
- Sajeev Handa, MDProvidence, RI 029031528012747
- William Mason, M.D.Providence, RI 029031679579338
- Donnah Mathews, MDProvidence, RI 029031942288097
Common questions
What is Rei Mitsuyama, MD's NPI number?
Rei Mitsuyama, MD's National Provider Identifier (NPI) is 1811519408, issued on May 18, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Rei Mitsuyama, MD located?
The NPPES record lists a practice address at 593 Eddy St, Providence, RI, 02903. Phone: (401) 444-4741. Providers update this record themselves, so call before visiting.
How can I verify Rei Mitsuyama, MD's license?
NPPES lists Rhode Island license number MD19179, as entered by the provider. Search the Rhode Island Board of Medical Licensure and Discipline at https://healthri.mylicense.com/Verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Rei Mitsuyama, MD prescribe under Medicare Part D?
In 2024, Rei Mitsuyama, MD had 34 Medicare Part D claims; 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.