John Leonard D'Souza, M.D.
Diagnostic Radiology Physician · Toledo, OH
John Leonard D'Souza, M.D. is a diagnostic radiology physician with a practice address in Toledo, Ohio, and NPI 1770504318, issued on Jul 21, 2006. Check the license (Ohio 35079797D, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- John Leonard D'Souza
- Credential
- M.D.
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License numbers
- 35079797D OH
246971 TN
Self-reported in NPPES; status is on the state search - Practice location
- 3900 Sunforest CT Ste 136, Toledo, OH 43623
- Phone
- (419) 474-1104
- Enumerated
- Jul 21, 2006
- Record last updated
- Jun 16, 2026
- Fax
- (419) 473-2867
- Medicaid ID
- 2250040 OH
- Medicare enrollment
- Enrolled (PECOS I20031211000277); accepts Medicare assignment
- Medical or professional school
- State University Of New York At Buffalo School Of Medicine, 1994
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 1,582 in Ohio → Look up another NPI →
Also registered at 3900 Sunforest CT Ste 136
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Patrick Gustine, M.D.Diagnostic Radiology Physician1548281116
- Frederic Mattes, M.D.Diagnostic Radiology Physician1982625356
- Gunvantray Mehta, M.D.Diagnostic Radiology Physician1376565184
Verify John Leonard D'Souza in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35079797DCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
45% fewer Medicare Part D claims than the average diagnostic radiology physician in 2024
28 Medicare Part D claims, against an average of 51 among the 2,711 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: $13.26
1 payment: food and beverage; the largest payer was Philips North America LLC. The 8,048 providers of this specialty with any payment received $2,488.38 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.
Bills Medicare through one group practice
- Toledo Clinic IncorporatedToledo, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Leonard D'Souza among 1,582 diagnostic radiology physician records in Ohio
John Leonard D'Souza, M.D. is one of 1,582 diagnostic radiology physician records with a practice address in Ohio. 71% 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 19% of them.
- NPI issued2006 · 19% of these records are older, 42% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated1994 · median 2002 among the 1,060 with a school on file
- Record last updated2026 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Diagnostic Radiology Physician providers in Ohio
There are 1,582 diagnostic radiology physician records in Ohio.
All 1,582 in Ohio → Every provider in Toledo → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Patrick Gustine, M.D.Toledo, OH 436231548281116
- Frederic Mattes, M.D.Toledo, OH 436231982625356
- Gunvantray Mehta, M.D.Toledo, OH 436231376565184
- David Szczesniak, MDToledo, OH 436231376591503
- Gerald Glassberg, M.D.Toledo, OH 436241699778696
- George Jacobs, MDToledo, OH 436241578648812
- Vincent Perez, MDToledo, OH 436241881779197
- Peter Royen, M.D.Toledo, OH 436241700889086
Common questions
What is John Leonard D'Souza, M.D.'s NPI number?
John Leonard D'Souza, M.D.'s National Provider Identifier (NPI) is 1770504318, issued on Jul 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Leonard D'Souza, M.D. located?
The NPPES record lists a practice address at 3900 Sunforest CT Ste 136, Toledo, OH, 43623. Phone: (419) 474-1104. Providers update this record themselves, so call before visiting.
How can I verify John Leonard D'Souza, M.D.'s license?
NPPES lists Ohio license number 35079797D, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Leonard D'Souza, M.D. prescribe under Medicare Part D?
In 2024, John Leonard D'Souza, M.D. had 28 Medicare Part D claims; the average among diagnostic radiology physician prescribers was 51. 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.