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Dr. Takao Ohnuma, MD


  • (212) 241-6756

Dr. Ohnuma's Overview

Dr. Takao Ohnuma graduated from the Tohoku Univ, Fac of Med, Sendai, Japan in 1957. He works in New York, NY and specializes in Hematology/Oncology. Dr. Ohnuma is affiliated with Mount Sinai Medical Center.

Dr. Ohnuma's Experience

Years in Practice: 58

Conditions Treated by Dr. Ohnuma

Procedures Performed by Dr. Ohnuma

  • Not Available

Dr. Ohnuma's Specialties


Dr. Ohnuma's Education & Training

Medical School: Tohoku Univ, Fac of Med, Sendai, Japan; Graduated 1957

Dr. Ohnuma's Rating

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Overall Rating


  • Explains conditions & treatments
  • Takes time to answer my questions
  • Provides follow-up as needed
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Dr. Ohnuma's Accepted Insurance

  • Aetna Choice POS II
  • Aetna Choice POS Open Access
  • Aetna HMO
  • Aetna Managed Choice POS Open Access
  • Aetna Select
  • Aetna Signature Administrators PPO
  • BCBS Blue Card PPO
  • CIGNA Open Access Plus
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Dr. Ohnuma's Office Information & Appointments

Office Locations

Ruttenberg Treatment Center

1470 Madison Ave FL 4
New York, NY 10029
(212) 241-6756


Office Hours and Information

Fax: (212) 241-7141

Practice Website: Not Available

Accepting New Patients: Yes

Medicare Accepted: Yes

Medicaid Accepted: Yes

Monday 7:30 AM - 8:00 PM
Tuesday 7:30 AM - 8:00 PM
Wednesday 7:30 AM - 8:00 PM
Thursday 7:30 AM - 8:00 PM
Friday 7:30 AM - 8:00 PM
Saturday Closed
Sunday Closed

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Dr. Ohnuma's Hospital Affiliations

Office Locations

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