Sameer Tolay, MD
Hematology & Oncology Physician · Fond Du Lac, WI
Sameer Tolay, MD is a hematology & oncology physician with a practice address in Fond Du Lac, Wisconsin, and NPI 1376899393, issued on Jul 27, 2012. Check the license (Wisconsin 68436, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Sameer Tolay
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 68436 WI
Self-reported in NPPES; status is on the state search - Practice location
- 480 E Division St, Fond Du Lac, WI 54935
- Phone
- (920) 926-4100
- Enumerated
- Jul 27, 2012
- Record last updated
- Oct 2, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (920) 926-4190
- Medicare enrollment
- Enrolled (PECOS I20180913003447); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 480 E Division St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kelly Hagner, APNPFamily Nurse Practitioner1144827734
- Michael Jones, MDHematology & Oncology Physician1164403226
- Eugene Lambert, MDHematology & Oncology Physician1376524678
- Rebecca Lentscher, APNPFamily Nurse Practitioner1902174089
- Lisa Michels, APNPAdult Health Nurse Practitioner1952735516
- Filip Troicki, MDRadiation Oncology Physician1174756696
Verify Sameer Tolay in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 68436Check 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% more Medicare Part D claims than the average hematology & oncology physician in 2024
1,268 Medicare Part D claims for 201 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Anastrozole200 claims
- Prochlorperazine Maleate127 claims
- Acyclovir114 claims
- Ondansetron Hcl79 claims
- Revlimid70 claims
- Dexamethasone66 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
- Agnesian Healthcare IncFond Du Lac, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hematology & Oncology Physician providers in Wisconsin
There are 295 hematology & oncology physician records in Wisconsin.
Other hematology & oncology physician records in Wisconsin
- Chady Abboud Leon, M.D.Marshfield, WI1770737744
- Kareem Abdelhadi, MDRice Lake, WI1841494432
- Sameem Abedin, MDMilwaukee, WI1063641157
- Faith Abodunrin, MDMilwaukee, WI1437768769
- Rami Abumasmah, MDOshkosh, WI1972779551
- Syed AbutalibMilwaukee, WI1114183290
- Kalid Adab, MDMilwaukee, WI1346473345
- Jacob Adashek, DOGermantown, WI1144780107
- Gulrayz Ahmed, M.D.Milwaukee, WI1033561808
- Othman AkhtarMilwaukee, WI1619325404
Common questions
What is Sameer Tolay, MD's NPI number?
Sameer Tolay, MD's National Provider Identifier (NPI) is 1376899393, issued on Jul 27, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Sameer Tolay, MD located?
The NPPES record lists a practice address at 480 E Division St, Fond Du Lac, WI, 54935. Phone: (920) 926-4100. Providers update this record themselves, so call before visiting.
How can I verify Sameer Tolay, MD's license?
NPPES lists Wisconsin license number 68436, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Sameer Tolay, MD prescribe under Medicare Part D?
In 2024, Sameer Tolay, MD had 1,268 Medicare Part D claims for 201 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.