Summary

Dr. Diane Clausen has practiced oncology and internal medicine for 36 years. She is affiliated with Mather Hospital, Saint Catherine of Siena Medical Center, and Stony Brook University Hospital, and sees patients in Smithtown and Stony Brook, New York. Dr. Clausen earned her medical degree from the Renaissance School of Medicine at Stony Brook University. She speaks English and Spanish. Patients on Vitals rate Dr. Clausen 4.92 out of 5.

Overview based on verified provider data

Quick Facts

  • 4.9
  • 36 years of experience
  • speaks English, Spanish
  • Renaissance School Of Medicine At Stony Brook University
  • 4 written reviews
  • 2 specialties
  • 14 areas of expertise
  • 3 hospital affiliations
  • 2 office locations
  • Female

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Diane M Clausen has 2 locations

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Dr. Diane M Clausen, MDKenneth K. Ng, MDJennifer K. Lue, MDArlyn Apollo, MD
OncologyOncologyOncologyOncology
Accepts New Patients Accepts New Patients Accepts New Patients
4.9 
5 
1 
4.4 
36 Years of Experience 34 Years of Experience 15 Years of Experience 26 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English, Spanish Speaks English Speaks English Speaks English
Smithtown , NYUniondale , NYCommack , NYUniondale , NY
Med School: Renaissance School Of Medicine At Stony Brook University Med School: SUNY University at Buffalo Med School: New York University School of Medicine Med School: Mount Sinai School of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Diane M Clausen

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

Medical Specialties

Dr. Diane M Clausen has the following 2 specialties

Specialty Expertise

Dr. Diane M Clausen has the following 14 areas of expertise

  • Acute Myeloid Leukemia
  • Bone Marrow Transplant
  • Cancer
  • Chemotherapy
  • Chronic B-Cell Lymphocytic Leukemia
  • Chronic Myeloid Leukemia
  • Deep Vein Thrombosis
  • Hepatitis C
  • Holistic Health
  • Internal Medicine
  • Leukemia
  • Lymphoma
  • Myelofibrosis
  • Myeloma

Certifications, License, & Education

36 Years Experience

Dr. Diane M Clausen holds an active medical license in the state of New York.

Medical License

Medical Doctor with an active medical license in the state of New York that expires in 2027.

Education & Training

Medical School

Graduated from Renaissance School Of Medicine At Stony Brook University in 1990.

NPI Number

Dr. Clausen's NPI number is 1447256995.

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Frequently Asked Questions

Does Dr. Diane Clausen accept virtual/telehealth appointments?
Dr. Diane Clausen has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
How can I make an appointment with Dr. Diane Clausen?
You can find contact information for Dr. Diane Clausen here on Vitals.
Where is Dr. Diane Clausen's office located?
Dr. Diane Clausen's office is located at 50 Route 25a, Smithtown, NY, 11787.
Which hospitals is Dr. Diane Clausen affiliated with?
Dr. Diane Clausen is affiliated with Mather Hospital, Saint Catherine Of Siena Medical Center, and STONY BROOK UNIVERSITY HOSPITAL.
Does Dr. Diane Clausen accept my insurance?
You can see the insurance plans that Dr. Diane Clausen accepts on their Vitals profile.

Data Sources

This provider profile is built using data from:

  • NPPES NPI Registry
  • State medical licensing boards
  • Healthcare system and provider network data

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