Hematologists and Oncologists in Ohio
Data updated monthly · Last refresh October 2026
506 Hematology & Oncology providers practice in Ohio, including 208 (41%) offering telehealth. The largest concentration is in Cleveland. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.
506providers
208telehealth
Clevelandtop city
Hematology & Oncology by city in Ohio
Choose a city to see providers there.
Where Hematologists and Oncologists in Ohio practice
From CMS Medicare enrollment records covering 323 of the 506 providers listed here (64%). Providers who do not bill Medicare are not included in these figures.
5%solo or small practice (under 10 clinicians)
15%mid-size group (10 to 99)
80%large group or health system (100+)
Largest practice groups
| Group (as registered with Medicare) | Hematologists and Oncologists | All clinicians in group | Main city |
| Cleveland Clinic | 72 | 6,954 | Cleveland |
| Ohiohealth Corp.oration | 25 | 2,295 | Columbus |
| University Hospitals Medical Group Inc. | 19 | 2,248 | Cleveland |
| Trihealth H LLC | 16 | 850 | Cincinnati |
| University of Cincinnati Physicians Company LLC | 15 | 1,474 | Cincinnati |
Hospitals where they hold privileges
| Hospital | City | Ownership | CMS star rating | Hematologists and Oncologists affiliated |
| Cleveland Clinic | Cleveland | Nonprofit | 4 of 5 | 81 |
| Akron General Medical Center | Akron | Nonprofit | 5 of 5 | 40 |
| Hillcrest Hospital | Mayfield Heights | Nonprofit | 5 of 5 | 37 |
| Cleveland Clinic Avon Hospital | Avon | Nonprofit | 5 of 5 | 32 |
| Riverside Methodist Hospital | Columbus | Nonprofit | 4 of 5 | 29 |
Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.
Hematology & Oncology providers in Ohio
Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
Dr. Ariel Sindel, DOAkron, OH · $83 in drug and device payments (2025) · Telehealth ·
(303) 344-6505 Dr. Bradley Clifford, M.D.Akron, OH · $24 in drug and device payments (2025) · Telehealth ·
(330) 376-1043 Dr. Esther Rehmus, M.D.Akron, OH · No drug or device payments recorded (2025) ·
(330) 344-6505 Dr. Judy Peih-ying Tsai, MDAkron, OH · $247 in drug and device payments (2025) · Telehealth ·
(330) 344-6505 Dr. Kathryn Leininger, MDAkron, OH · No drug or device payments recorded (2025) ·
(330) 344-6505 Dr. Meredith Driscol, M.D.Akron, OH · No drug or device payments recorded (2025) ·
(330) 375-4100 Dr. Sameer Mahesh, M.D.Akron, OH · $19 in drug and device payments (2025) · Telehealth ·
(330) 376-1043 Dr. Weiquan Lu, M.D., PH.D.Akron, OH · $479 in drug and device payments (2025) · Telehealth ·
(330) 344-6505 Dr. Zoraida Mendez Leazard, MDAkron, OH · No drug or device payments recorded (2025) ·
(913) 359-6001 Dr. Ferdinando Cortese, MDAlliance, OH · No drug or device payments recorded (2025) ·
(330) 829-4234 Dr. Mohammad Varghai, M.D.Ashtabula, OH · No drug or device payments recorded (2025) ·
(440) 994-7600 Dr. Adriana Alvarez, MDAvon, OH · $18,474 in drug and device payments (2025) · Telehealth ·
(440) 695-4320 Dr. Larisa Schwartzman, M.D.Avon, OH · No drug or device payments recorded (2025) ·
(440) 695-4000 Dr. Andrew Haas, MDBarberton, OH · $67 in drug and device payments (2025) ·
(330) 753-7876 Dr. Arun Muthiah, MDBeachwood, OH · No drug or device payments recorded (2025) ·
(216) 839-2990 Dr. Prateek Mendiratta, M.D.Beachwood, OH · $54,377 in drug and device payments (2025) · Telehealth ·
(216) 839-2990 Dr. Zion Oshikanlu, MDBeavercreek, OH · No drug or device payments recorded (2025) ·
(937) 490-2264 Dr. Roma Srivastava, M.D.Blue Ash, OH · $694 in drug and device payments (2025) ·
(513) 751-2273 Dr. Dale Cowan, MDBrecksville, OH · No drug or device payments recorded (2025) ·
(216) 798-2722 Dr. Su-chiao Kuo, MDBrunswick, OH · No drug or device payments recorded (2025) ·
(330) 225-7733 Dr. Mahmoud Afifi, MDBryan, OH · No drug or device payments recorded (2025) ·
(419) 636-1131 Dr. Philip Lowry, MDBryan, OH · No drug or device payments recorded (2025) ·
(419) 630-2291 Dr. John Kurtz, M.D.Bucyrus, OH · No drug or device payments recorded (2025) ·
(419) 985-5228 Dr. Baidehi Maiti, M.D., PH.D.Cambridge, OH · $7,945 in drug and device payments (2025) · Telehealth ·
(740) 439-2771 Dr. John Kessler, MDCambridge, OH · No drug or device payments recorded (2025) ·
(740) 439-2771 Dr. Nabiel Alkhouri, M.D.Cambridge, OH · No drug or device payments recorded (2025) ·
(740) 439-2771 Dr. Antoine Chahine, MDCanfield, OH · $3,841 in drug and device payments (2025) ·
(330) 533-3040 Dr. Eledath Krishnan, MDCanfield, OH · No drug or device payments recorded (2025) ·
(330) 533-3040 Dr. John Graham, M.D.Canfield, OH · $3,769 in drug and device payments (2025) ·
(330) 533-3040 Dr. Vaibhav Verma, MDCanfield, OH · $4,207 in drug and device payments (2025) ·
(330) 533-3040 Dr. James Schmotzer, MDCanton, OH · No drug or device payments recorded (2025) ·
(330) 453-3309 Dr. John Jakob, MDCanton, OH · $1,154 in drug and device payments (2025) · Telehealth ·
(330) 438-6333 Dr. Kisa Weeman, MDCanton, OH · No drug or device payments recorded (2025) ·
(330) 438-6333 Dr. Paul Manuszak, MDCanton, OH · No drug or device payments recorded (2025) ·
(330) 438-6333 Dr. Raza Khan, MDCanton, OH · $900 in drug and device payments (2025) · Telehealth ·
(330) 438-6333 Dr. Shruti Trehan, MDCanton, OH · No drug or device payments recorded (2025) ·
(330) 438-6333 Dr. Sunitha Vemulapalli, MD Dr. Hetty Carraway, M.D.Chagrin Falls, OH · $34,560 in drug and device payments (2025) · Telehealth ·
(443) 858-0854 Dr. Himaja Gaddipati, DOChardon, OH · $379 in drug and device payments (2025) · Telehealth ·
(440) 286-5050 Dr. Akaolisa Eziokwu, M.D.Chillicothe, OH · $173 in drug and device payments (2025) ·
(740) 542-3030 Dr. Ralph Roach, MDChillicothe, OH · No drug or device payments recorded (2025) ·
(740) 779-7589 Dr. Sandipkumar Patel, M.D.Chillicothe, OH · $19 in drug and device payments (2025) ·
(740) 542-3030 Dr. Sara SingerChillicothe, OH · $237 in drug and device payments (2025) · Telehealth ·
(740) 542-3030 Dr. Vamsi Koduri, MDChillicothe, OH · $108 in drug and device payments (2025) · Telehealth ·
(740) 672-2025 Dr. Abdul Rahman JaziehCincinnati, OH · $7,768 in drug and device payments (2025) ·
(513) 731-2273 Dr. Adam Rojan, MDCincinnati, OH · $36 in drug and device payments (2025) ·
(513) 475-8500 Dr. Annabelle Anandappa, MDCincinnati, OH · No drug or device payments recorded (2025) ·
(513) 475-8500 Dr. Anu Paul, MBBSCincinnati, OH · $418 in drug and device payments (2025) ·
(513) 751-2273 Conditions Hematology & Oncology providers in Ohio commonly treat
Patients often search by condition rather than specialty. These are conditions typically managed by Hematology & Oncology providers. Individual practices vary, so confirm with the provider before booking.
- Breast cancer
- Lung cancer
- Lymphoma
- Leukemia
- Anemia
- Blood disorders
Common questions
How many Hematology & Oncology providers are in Ohio?There are 506 Hematology & Oncology providers with active NPI records practicing in Ohio, according to federal NPPES data refreshed monthly.
Do Hematology & Oncology providers in Ohio offer telehealth?Yes. 208 of the 506 Hematology & Oncology providers in Ohio (about 41%) report offering telehealth services in CMS data.
Which cities in Ohio have the most Hematology & Oncology providers?Cleveland (130), Cincinnati (60), Columbus (55) have the highest concentration of Hematology & Oncology providers in Ohio.
How many Hematology & Oncology providers in Ohio received drug or device company payments?326 of 506 Hematology & Oncology providers in Ohio (64%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
What conditions do Hematology & Oncology providers in Ohio treat?Hematology & Oncology providers commonly treat breast cancer, lung cancer, lymphoma, leukemia, anemia and related conditions. Individual practices vary, so confirm with the provider before booking.
Where does this data come from?Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
Do most Hematologists and Oncologists in Ohio work in independent practices or large health systems?Among 323 Hematologists and Oncologists in Ohio enrolled in Medicare, 5% bill through a solo or small practice with fewer than 10 clinicians, 15% through a mid-size group of 10 to 99, and 80% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Hematologists and Oncologists in Ohio work at?According to CMS facility affiliation records, the Ohio hospitals where the most Hematologists and Oncologists hold privileges are Cleveland Clinic in Cleveland; Akron General Medical Center in Akron; Hillcrest Hospital in Mayfield Heights.
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