Ariel Kleman, M.D.
Hematology & Oncology Physician · Milwaukee, WI
Ariel Kleman, M.D. is a hematology & oncology physician with a practice address in Milwaukee, Wisconsin, and NPI 1659758050, issued on May 5, 2015. Check the license (Wisconsin 66587, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Ariel Kleman
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- 66587 WI
66587-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 9200 W Wisconsin Avenue, Milwaukee, WI 53207
- Phone
- (414) 955-8296
- Enumerated
- May 5, 2015
- Record last updated
- Jan 3, 2025
- Medicare enrollment
- Enrolled (PECOS I20210920000819); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 295 in Wisconsin → Look up another NPI →
Verify Ariel Kleman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 66587Check 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
1,270 Medicare Part D claims for 205 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. 18 claims were for opioids.
Most prescribed
- Anastrozole224 claims
- Eliquis109 claims
- Letrozole96 claims
- Prednisone62 claims
- Prochlorperazine Maleate56 claims
- Ondansetron Hcl47 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
- Prohealth Medical Group IncWaukesha, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ariel Kleman among 295 hematology & oncology physician records in Wisconsin
Ariel Kleman, M.D. is one of 295 hematology & oncology physician records with a practice address in Wisconsin. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 81% of them.
- NPI issued2015 · 81% of these records are older, 14% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2015 · median 2004 among the 217 with a school on file
- Record last updated2025 · 51% 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 Wisconsin 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 Wisconsin
There are 295 hematology & oncology physician records in Wisconsin.
All 295 in Wisconsin → Every provider in Milwaukee → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Charles Bomzer, MDMilwaukee, WI 532091629069372
- Corey Shamah, M.D.Milwaukee, WI 532091104910249
- Allan Torkelson, M.D.Milwaukee, WI 532091073587226
- Michael Keefe, MDMilwaukee, WI 532111073510004
- Ranveer Nand, M.D.Milwaukee, WI 532111831262534
- Varsha Shah, M.D.Milwaukee, WI 532111225297856
- Charles Tiber, MDMilwaukee, WI 532111750460200
- Howard Dubner, MDGlendale, WI 532121962493346
Common questions
What is Ariel Kleman, M.D.'s NPI number?
Ariel Kleman, M.D.'s National Provider Identifier (NPI) is 1659758050, issued on May 5, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Ariel Kleman, M.D. located?
The NPPES record lists a practice address at 9200 W Wisconsin Avenue, Milwaukee, WI, 53207. Phone: (414) 955-8296. Providers update this record themselves, so call before visiting.
How can I verify Ariel Kleman, M.D.'s license?
NPPES lists Wisconsin license number 66587, 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 Ariel Kleman, M.D. prescribe under Medicare Part D?
In 2024, Ariel Kleman, M.D. had 1,270 Medicare Part D claims for 205 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.