24 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Klein, Hematology / Oncology Specialist in Boston, MA?
Dr. Andreas Klein, MD is a Hematology / Oncology Specialist, who primarily practices in Boston, MA. He has been practicing for over 24 years and is board certified. Dr. Klein completed his residency at Tufts University Affiliated Hospitals. Dr. Klein is fluent in English, Chinese, and Spanish, and is currently seeing new patients. Dr. Klein’s practice accepts Medicare, Aetna, Cigna, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Klein’s office at (617) 636-5000.
What are Areas of Expertise for Dr. Klein?
Dr. Andreas Klein, MD is a highly-rated, board-certified Hematology / Oncology Specialist known for expertly diagnosing, treating, and managing a wide array of related conditions and procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Klein empowers patients to confidently navigate their health journey, specializing in Bone Marrow Transplant, Hematology, Lymphoma, Multiple Myeloma, and comprehensive wellness support. Serving the Boston, MA community, Dr. Klein is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Klein go to medical school and complete their residency?
Fellowship: Duke University Medical Ctr, Hematology/Oncology Fellow
Residency: Tufts University Affiliated Hospitals
Is Dr. Klein board certified as a Hematology / Oncology Specialist?
Yes, Dr. Andreas Klein, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Klein speak?
Dr. Klein and their clinical team can communicate with patients in the following languages:
Chinese
English
Spanish
What conditions does a Hematology / Oncology Specialist like Dr. Klein typically treat?
As a Hematology / Oncology Specialist, Dr. Klein diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Klein. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Cancer Immunotherapy
- Cancer Chemotherapy
- Oncology immunotherapy
- Immune therapy for cancer
- Chemo treatment
- Oncology chemotherapy
- Cancer drug therapy
ICD-10 Codes:
- Z5112: Encounter for antineoplastic immunotherapy
- Z5111: Encounter for antineoplastic chemotherapy
Also known as:
- Chronic Lymphocytic Leukemia
- Acute Myeloid Leukemia
- Chronic Lymphocytic Leukemia Treatment (PDQ®)
- CLL
- B-cell chronic lymphocytic leukemia
- Lymphocytic leukemia
- AML Leukemia
- Acute Myeloblastic Leukemia
- Acute Myelogenous Leukemia
ICD-10 Codes:
- C9110: Chronic lymphocytic leukemia of B-cell type not having achieved remission
- C9200: Acute myeloblastic leukemia, not having achieved remission
Also known as:
- Diffuse Large B-cell Lymphoma
- Lymphoma
- DLBCL
- Aggressive B-cell Lymphoma
- Diffuse B-cell Lymphoma
ICD-10 Codes:
- C8330: Diffuse large B-cell lymphoma, unspecified site
- C8338: Diffuse large B-cell lymphoma, lymph nodes of multiple sites
Also known as:
- Thrombocytopenia
- Platelet Disorder
- Low platelet count
- Platelet deficiency
- Bleeding disorder
ICD-10 Codes:
- D696: Thrombocytopenia, unspecified
What procedures does a Hematology / Oncology Specialist like Dr. Klein typically perform?
As a Hematology / Oncology Specialist, Dr. Klein performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Klein. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Blood Transfusion
- Blood Transfusion and Donation
- Blood product transfusion
- Red blood cell transfusion
- Plasma transfusion
CPT Codes:
- 36430: Transfusion, blood or blood components
Also known as:
- Declotting of Vascular Access Device
- Catheter declotting
- Thrombolytic therapy for catheter
- Blocked port-a-cath treatment
- Vascular access device unblocking
CPT Codes:
- 36593: Declotting by thrombolytic agent of implanted vascular access device or catheter
Also known as:
- Pulse Oximetry
- Oxygen Saturation Test
- Oximeter Reading
- Blood Oxygen Level Test
CPT Codes:
- 94760: Noninvasive ear or pulse oximetry for oxygen saturation; single determination
Also known as:
- Follow-up Medical Nutrition Therapy
- Dietitian Re-assessment
- Nutritional Counseling Session
- Diet and Health Review
CPT Codes:
- 97803: Medical nutrition therapy; re-assessment and intervention, individual, face-to-face with the patient, each 15 minutes
Does Dr. Klein accept my insurance?
Dr. Klein accepts most major insurance plans. Important: Please call our office at (617) 636-5000 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Klein accept in Boston, MA?
Dr. Klein in Boston, MA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Blue Cross Blue Shield of Massachusetts
BMC Health System
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
Medicare
Point32Health
State of Massachusetts
UnitedHealth Group
Unknown
View All Insurances
Where is Dr. Klein's office located?
Recognitions
Castle Connolly Doctor’s Choice Awards
Doctor’s Choice - All Time
Among the most nominated for the Castle Connolly Top Doctor recognition across all time
Doctor’s Choice - 2025
Among the most nominated for the Castle Connolly Top Doctor recognition in 2025
Doctor’s Choice - Last 5 Years
Among the most nominated for the Castle Connolly Top Doctor recognition in the last 5 years
Awards
Boston Super Doctors
Top Doctor, U.S. News & World Report
Assistant Director Adult Bmt Program
What is Dr. Klein's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Klein's National Provider Identifier (NPI) number is 1285740969.
What common questions do patients ask about Dr. Klein?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Klein
What is Dr. Andreas Klein's specialty?
Dr. Klein is a Hematology / Oncology Specialist near Boston, MA.
What does a Hematology / Oncology Specialist do?
An internist doctor of osteopathy specializing in the combined treatment of hematology and oncology disorders. A doctor of osteopathy who is board eligible or certified by the American Osteopathic Board of Internal Medicine was previously able to obtain a Certificate of Special Qualifications in Hematology and Oncology; however, this certificate is no longer available.
Is this Dr. Andreas Klein affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Klein is affiliated with Tufts Medical Center which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
When to see a Hematology / Oncology Specialist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see a Hematology / Oncology Specialist. Explore insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Andreas Klein accepting new patients in Boston, MA?
Yes, Dr. Andreas Klein is accepting new patients at this time.
Does Dr. Andreas Klein offer online booking?
Please contact Dr. Klein's office at (617) 636-5000 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Andreas Klein?
Please contact Dr. Klein's office at (617) 636-5000 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Andreas Klein have?
Dr. Andreas Klein is certified by the American Board of Internal Medicine.
Other Hematology / Oncology Specialist Near Boston, MA
Pediatric Hematologist-Oncologist
Accepting patientsDr. Giannoula Klement, MD is a Pediatric Hematologist-Oncologist, who primarily practices in Boston, MA. She is board certified.
Boston, MA
CR
Pediatric Hematologist-Oncologist
Accepting patientsDr. Cathy Rosenfield, MD is a Pediatric Hematologist-Oncologist, who primarily practices in Boston, MA.
Boston, MA
PB
Hematology / Oncology Specialist
Accepting patientsDr. Parva Bhatt, MD is a Hematology / Oncology Specialist, who primarily practices in Boston, MA.
Boston, MA