David W. Brown, MD
Hematology & Oncology Physician · Toledo, OH
David W. Brown, MD is a hematology & oncology physician with a practice address in Toledo, Ohio, and NPI 1710985361, issued on Jul 8, 2005. Check the license (Ohio 35046388B, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- David W. Brown
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 35046388B OH
Self-reported in NPPES; status is on the state search - Practice location
- 4235 Secor RD, Toledo, OH 43623
- Phone
- (419) 473-3561
- Enumerated
- Jul 8, 2005
- Record last updated
- Jan 31, 2025
- Medicaid ID
- 0561351 OH
- Medicare enrollment
- Enrolled (PECOS I20060109000031); accepts Medicare assignment
- Medical or professional school
- Ohio State University College Of Medicine, 1979
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 513 in Ohio → Look up another NPI →
Also registered at 4235 Secor RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Fateh Ahmed, MDPulmonary Disease Physician1306844956
- Jo Dee Ahrens, MDInternal Medicine Physician1770584088
- Olivia Ajja, CRNACertified Registered Nurse Anesthetist1225138431
- Osama Al-Bawab, MDCardiovascular Disease Physician1609877075
- Bayan Al-Hurani, MDInternal Medicine Physician1598260689
- Nasir Ali, MDPulmonary Disease Physician1447257282
Verify David W. Brown in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35046388BCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
51% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
430 Medicare Part D claims for 99 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.
Most prescribed
- Anastrozole116 claims
- Imbruvica33 claims
- Letrozole23 claims
- Sulfamethoxazole-Trimethoprim22 claims
- Hydroxyurea20 claims
- Calquence17 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
- Henry County Hospital IncNapoleon, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David W. Brown among 513 hematology & oncology physician records in Ohio
David W. Brown, MD is one of 513 hematology & oncology physician records with a practice address in Ohio. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 84% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1979 · median 2001 among the 369 with a school on file
- Record last updated2025 · 53% 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 Ohio 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 Ohio
There are 513 hematology & oncology physician records in Ohio.
All 513 in Ohio → Every provider in Toledo → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Glen Burton, MDToledo, OH 436231689672081
- Rex Mowat, MDToledo, OH 436231346247251
- Bahu Shaikh, M.D.Toledo, OH 436231225036668
- Abhay Shelke, MDToledo, OH 436231861682916
- Ahmad Zarzour, M.D.Toledo, OH 436231992149041
- Zauraiz Anjum, MDToledo, OH 436141497364103
- Shaili Desai, MDToledo, OH 436141285845578
- Danae Hamouda, M.D.Toledo, OH 436141316382260
Common questions
What is David W. Brown, MD's NPI number?
David W. Brown, MD's National Provider Identifier (NPI) is 1710985361, issued on Jul 8, 2005. An NPI identifies a provider in billing; it is not a license.
Where is David W. Brown, MD located?
The NPPES record lists a practice address at 4235 Secor RD, Toledo, OH, 43623. Phone: (419) 473-3561. Providers update this record themselves, so call before visiting.
How can I verify David W. Brown, MD's license?
NPPES lists Ohio license number 35046388B, 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 David W. Brown, MD prescribe under Medicare Part D?
In 2024, David W. Brown, MD had 430 Medicare Part D claims for 99 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.