Oklahoma Cancer and Blood Specialists

Our People

Meet Our Team

Our physicians and advanced practice providers bring extensive experience and a patient-centered approach to delivering high-quality oncology and hematology care across Oklahoma.

Physicians

Sanjaykumar Hapani, M.D.

Sanjaykumar Hapani, M.D.

Hematologist & Medical Oncologist

Oklahoma CityEnid
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Hassan Kaleem, M.D.

Hassan Kaleem, M.D.

Hematologist & Medical Oncologist

Tulsa
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Robert E. Reynolds, M.D.

Robert E. Reynolds, M.D.

Medical Oncologist & Hematologist

Oklahoma CityWeatherford
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Advanced Practice Providers

Andrea L. Putthoff, DNP

Andrea L. Putthoff, DNP, APRN-CNP, FNP

Doctor of Nursing Practice / Family Nurse Practitioner

Oklahoma City
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Michelle Tull, APRN-CNS

Michelle Tull, APRN-CNS, OCN

Adult-Gerontology Clinical Nurse Specialist, Oncology

Oklahoma CityWeatherford
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Agnes Tonkumoh, MSN

Agnes Tonkumoh, MSN, APRN, FNP

Family Nurse Practitioner

Oklahoma City
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Lehi T. Vang, PA-C

Lehi T. Vang, PA-C

Physician Assistant

Tulsa
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Lora M. Vaverka, APRN

Lora M. Vaverka, APRN, FNP-C

Family Nurse Practitioner

Enid
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