Joseph Kash, MD
Hematology & Oncology Physician · Naperville, IL
Joseph Kash, MD is a hematology & oncology physician with a practice address in Naperville, Illinois, and NPI 1043297971, issued on Dec 30, 2005. Check the license (Illinois 36091682, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Joseph Kash
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 36091682 IL
Self-reported in NPPES; status is on the state search - Practice location
- 120 Spalding Dr, Naperville, IL 60540
- Phone
- (630) 527-3788
- Enumerated
- Dec 30, 2005
- Record last updated
- Apr 2, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (630) 646-6071
- Medicaid ID
- 036091682 2 IL
- Medicare enrollment
- Enrolled (PECOS I20040816000613); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1993
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 666 in Illinois → Look up another NPI →
Also registered at 120 Spalding Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amy Batista, NPAdult Health Nurse Practitioner1770844060
- Rosemarie Batiste, APN-CNPNurse Practitioner1245434851
- Mansoina Baweja, MDHematology & Oncology Physician1629052089
- Michael Caron, MDNeurological Surgery Physician1275738023
- Cathleen Cregier, APNInternal Medicine Physician1245227271
- Neil Das Gupta, M.D.Radiation Oncology Physician1316974363
Verify Joseph Kash in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 36091682Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average hematology & oncology physician in 2024
2,142 Medicare Part D claims for 314 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims. 246 claims were for opioids.
Most prescribed
- Anastrozole273 claims
- Letrozole213 claims
- Xarelto186 claims
- Eliquis145 claims
- Hydrocodone-Acetaminophen89 claims
- Warfarin Sodium84 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.
The MIPS final score for 2023 (Medicare payment program): 91.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $558.63
24 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 8,560 providers of this specialty with any payment received $7,481.41 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
- Endeavor Health Medical GroupNaperville, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joseph Kash among 666 hematology & oncology physician records in Illinois
Joseph Kash, MD is one of 666 hematology & oncology physician records with a practice address in Illinois. 84% 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, 85% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1993 · median 2003 among the 461 with a school on file
- Record last updated2013 · 49% 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 Illinois 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 Illinois
There are 666 hematology & oncology physician records in Illinois.
All 666 in Illinois → Every provider in Naperville → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Mohammed Azeem, MD, MPHNaperville, IL 605401144583030
- Fariborze Barhamand, MDNaperville, IL 605401093810491
- Mansoina Baweja, MDNaperville, IL 605401629052089
- William Broderick, M.D.Naperville, IL 605401164696464
- Alexander Hantel, MDNaperville, IL 605401083691349
- Rand Naffouje, M.D.Naperville, IL 605401124469267
- Hassan Pervez, M.D.Naperville, IL 605401144373457
- Maria Quejada, MDNaperville, IL 605401558348722
Common questions
What is Joseph Kash, MD's NPI number?
Joseph Kash, MD's National Provider Identifier (NPI) is 1043297971, issued on Dec 30, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Joseph Kash, MD located?
The NPPES record lists a practice address at 120 Spalding Dr, Naperville, IL, 60540. Phone: (630) 527-3788. Providers update this record themselves, so call before visiting.
How can I verify Joseph Kash, MD's license?
NPPES lists Illinois license number 36091682, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Joseph Kash, MD prescribe under Medicare Part D?
In 2024, Joseph Kash, MD had 2,142 Medicare Part D claims for 314 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Joseph Kash, MD's MIPS final score?
The 2023 MIPS final score is 91.4 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.