Summary

Dr. Kloss graduated from the Universidad Del Noreste Escuela De Medicina Dr Jose Sierra Flores in 1985. He works in Cortland, NY and 1 other location and specializes in Oncology and Internal Medicine. Dr. Kloss is affiliated with Lourdes Hospital, Wilson Medical Center and Guthrie Cortland Medical Center.

Quick Facts

  • 3.1
  • 41 years of experience
  • speaks English, Spanish
  • North Shore University Hospital
  • 4 written reviews
  • 2 specialties
  • 13 areas of expertise
  • 3 hospital affiliations
  • 3 office locations
  • Male

Patients’ Perspective

  • Provided follow-up after the visit
  • Flexible scheduling

Office Locations

Dr. Jonathan David Kloss has 3 locations

The Renzi Cancer Center at Guthrie Cortland Medical Center

34 W Main StCortland, NY 13045

Dr. Jonathan David Kloss

34 Weat Main StCortland, NY 13045

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Dr. Jonathan David Kloss, MD
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Dr. Jonathan David Kloss, MDDr. Douglas Duncan Macqueen, MDDr. Joseph William Flanagan, MDZsofia Franck
OncologyInfectious DiseaseAllergy & ImmunologyInternal Medicine
Accepts New Patients Accepts New Patients
3.1 
3.7 
41 Years of Experience 20 Years of Experience 34 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish Speaks Chinese, English, French, German, Spanish Speaks English, Spanish Speaks Chinese, Spanish
Cortland , NYIthaca , NYCortland , NYIthaca , NY
Med School: Universidad Del Noreste Escuela De Medicina Dr Jose Sierra Flores Med School: Suny Upstate Med Ctr Med School: Suny Upstate Medical University Alan And Marlene Norton Coll Of Med
Current Profile
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Insurance Plans Accepted by Dr. Jonathan David Kloss

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Jonathan David Kloss has the following 2 specialties

Specialty Expertise

Dr. Jonathan David Kloss has the following 13 areas of expertise

  • Blood Cancer
  • Bone Marrow Transplant
  • Cancer
  • Chemotherapy
  • Chronic Myeloid Leukemia
  • Chronic Myelomonocytic Leukemia
  • Deep Vein Thrombosis
  • Hepatitis C
  • Internal Medicine
  • Leukemia
  • Lymphoma
  • Myelofibrosis
  • Myeloma

Certifications, License, & Education

41 Years Experience

Dr. Jonathan David Kloss holds an expired medical license in the state of New York.

Medical License

Medical Doctor with an expired medical license in the state of New York that expired in 2026.

Education & Training

Residency

Completed their residency at North Shore University Hospital.

Medical School

Graduated from Universidad Del Noreste Escuela De Medicina Dr Jose Sierra Flores in 1985.

NPI Number

Dr. Kloss' NPI number is 1134118565.

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Frequently Asked Questions

What languages does Dr. Jonathan Kloss speak?
Dr. Jonathan Kloss speaks English and Spanish.
Is Dr. Jonathan Kloss accepting new patients?
Dr. Jonathan Kloss has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Does Dr. Jonathan Kloss accept my insurance?
You can see the insurance plans that Dr. Jonathan Kloss accepts on their Vitals profile.
Which hospitals is Dr. Jonathan Kloss affiliated with?
Dr. Jonathan Kloss is affiliated with Lourdes Hospital, Wilson Medical Center, and Guthrie Cortland Medical Center.
Where is Dr. Jonathan Kloss's office located?
Dr. Jonathan Kloss's office is located at 134 Homer Ave, Cortland, NY, 13045.

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