NPPES file of Aug 9, 2026

Khaled Aref Hassan, M.D.

Medical Oncology Physician · Cleveland, OH

Khaled Aref Hassan, M.D. is a medical oncology physician with a practice address in Cleveland, Ohio, and NPI 1639291727, issued on Apr 6, 2007. Check the license (Ohio 35.124297, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1639291727
Name
Khaled Aref Hassan
Credential
M.D.
Primary taxonomy
Medical Oncology Physician 207RX0202X
License numbers
35.124297 OH
4301088374 MI
Self-reported in NPPES; status is on the state search
Practice location
9500 Euclid Ave, Cleveland, OH 44195
Phone
(216) 445-9365
Enumerated
Apr 6, 2007
Record last updated
Dec 29, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20190920002099); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest medical oncology physician records → All 169 in Ohio → Look up another NPI →

Also registered at 9500 Euclid Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ksenia Aaron, M.D.Otolaryngology Physician1891176582
  2. Maher Abbas, MDColon & Rectal Surgery Physician1508937491
  3. Mohammad Abbasi, MDClinical Cardiac Electrophysiology Physician1346730603
  4. Mahmoud AbbassyStudent in an Organized Health Care Education/Training Program1366872574
  5. Cassandra Abbatemarco, CNPPsychiatric/Mental Health Nurse Practitioner1417645144
  6. Walid Abboud, MDInternal Medicine Physician1245295559

Verify Khaled Aref Hassan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersState Medical Board of Ohio
    Search for license 35.124297    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Ohio license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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7% fewer Medicare Part D claims than the average medical oncology physician in 2024

652 Medicare Part D claims for 107 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. 29 claims were for opioids.

  1. Khaled Hassan652
  2. Specialty average703

Most prescribed

  1. Olanzapine81 claims
  2. Ondansetron Hcl74 claims
  3. Lumakras45 claims
  4. Alecensa42 claims
  5. Levothyroxine Sodium30 claims
  6. Dexamethasone27 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.

One hospital affiliation

  1. 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.

Khaled Aref Hassan among 169 medical oncology physician records in Ohio

Khaled Aref Hassan, M.D. is one of 169 medical oncology physician records with a practice address in Ohio. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 43% of them.

  • NPI issued2007 · 43% of these records are older, 49% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated1998 · median 2006 among the 132 with a school on file
  • Record last updated2020 · 41% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Oncology Physician providers in Ohio

There are 169 medical oncology physician records in Ohio.

All 169 in Ohio → Every provider in Cleveland → Medical Oncology Physician nationwide →

The 8 medical oncology physician records with the nearest ZIP codes

  1. Brian Bolwell, MDCleveland, OH 441951528022282
  2. G Thomas Budd, MDCleveland, OH 441951457315673
  3. Robert Dean, MDCleveland, OH 441951306800735
  4. Timothy Gilligan, M.D.Cleveland, OH 441951912998113
  5. Daniel Heng, MDCleveland, OH 441951245404813
  6. Susan Legrand, MDCleveland, OH 441951174587794
  7. Wen Wee Ma, MDCleveland, OH 441951386790517
  8. Michael Menefee, MDCleveland, OH 441951760598601

Common questions

What is Khaled Aref Hassan, M.D.'s NPI number?

Khaled Aref Hassan, M.D.'s National Provider Identifier (NPI) is 1639291727, issued on Apr 6, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Khaled Aref Hassan, M.D. located?

The NPPES record lists a practice address at 9500 Euclid Ave, Cleveland, OH, 44195. Phone: (216) 445-9365. Providers update this record themselves, so call before visiting.

How can I verify Khaled Aref Hassan, M.D.'s license?

NPPES lists Ohio license number 35.124297, 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 Khaled Aref Hassan, M.D. prescribe under Medicare Part D?

In 2024, Khaled Aref Hassan, M.D. had 652 Medicare Part D claims for 107 beneficiaries; the average among medical oncology physician prescribers was 703. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.