Sandra Mazzoni, D.O.
Hematology & Oncology Physician · Cleveland, OH
Sandra Mazzoni, D.O. is a hematology & oncology physician with a practice address in Cleveland, Ohio, and NPI 1902218829, issued on May 27, 2014. Check the license (Ohio 34.014609, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Sandra Mazzoni
- Credential
- D.O.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- 34.014609 OH
5101020994 MI
Self-reported in NPPES; status is on the state search - Practice location
- 9500 Euclid Avenue, Cleveland, OH 44193
- Phone
- (216) 445-2025
- Enumerated
- May 27, 2014
- Record last updated
- Aug 1, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200817000511); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 513 in Ohio → Look up another NPI →
Also registered at 9500 Euclid Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Sandra Mazzoni in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 34.014609Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
802 Medicare Part D claims for 115 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D.
Most prescribed
- Eliquis105 claims
- Acyclovir83 claims
- Revlimid54 claims
- Lenalidomide37 claims
- Doptelet34 claims
- Pomalyst32 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.
Industry payments in 2024: $8,535.59
21 payments; by number, the most common kind was food and beverage; the largest payer was Pharmacosmos Therapeutics 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.
One hospital affiliation
- Cleveland ClinicCleveland, OH · Acute Care Hospitals4 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Sandra Mazzoni among 513 hematology & oncology physician records in Ohio
Sandra Mazzoni, D.O. 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 2014, is newer than 80% of them.
- NPI issued2014 · 80% of these records are older, 17% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2014 · median 2001 among the 369 with a school on file
- Record last updated2020 · 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 Cleveland → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- David Adelstein, M.D.Cleveland, OH 441951922061365
- Ronald Bukowski, MDCleveland, OH 441951952365603
- Matt Kalaycio, MDCleveland, OH 441951710943006
- Omer Koc, MDCleveland, OH 441951588629059
- Alan Lichtin, MDCleveland, OH 441951366406456
- Vinit Makkar, M.D.Cleveland, OH 441951841254083
- Halle Moore, M.D.Cleveland, OH 441951700840683
- Robert Pelley, MDCleveland, OH 441951346205002
Common questions
What is Sandra Mazzoni, D.O.'s NPI number?
Sandra Mazzoni, D.O.'s National Provider Identifier (NPI) is 1902218829, issued on May 27, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Sandra Mazzoni, D.O. located?
The NPPES record lists a practice address at 9500 Euclid Avenue, Cleveland, OH, 44193. Phone: (216) 445-2025. Providers update this record themselves, so call before visiting.
How can I verify Sandra Mazzoni, D.O.'s license?
NPPES lists Ohio license number 34.014609, 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 Sandra Mazzoni, D.O. prescribe under Medicare Part D?
In 2024, Sandra Mazzoni, D.O. had 802 Medicare Part D claims for 115 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.