MO
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. O'hara, Hematology / Oncology Specialist in Philadelphia, PA?
Dr. Mark O'hara, MD is a Hematology / Oncology Specialist, who primarily practices in Philadelphia, PA. Dr. O'hara is fluent in English, and is currently seeing new patients. Dr. O'hara’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. O'hara’s office.
What languages does Dr. O'hara speak?
Dr. O'hara and their clinical team can communicate with patients in the following languages:
English
What conditions does a Hematology / Oncology Specialist like Dr. O'hara typically treat?
As a Hematology / Oncology Specialist, Dr. O'hara 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. O'hara. 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:
- Pancreatic Cancer
- Pancreas Cancer
- Malignant Pancreatic Tumor
- Pancreatic Carcinoma
- Cancer of the pancreas
- Malignant neoplasm of pancreas
- Pancreatic adenocarcinoma
ICD-10 Codes:
- C259: Malignant neoplasm of pancreas, unspecified
- C250: Malignant neoplasm of head of pancreas
Also known as:
- Colorectal Cancer
- Colon cancer
- Rectal cancer
- Bowel cancer
- Malignant neoplasm of colon
- Malignant neoplasm of rectum
ICD-10 Codes:
- C189: Malignant neoplasm of colon, unspecified
- C20: Malignant neoplasm of rectum
Also known as:
- Liver Cancer
- Childhood Liver Cancer
- Hepatic Cancer
- Hepatocellular Carcinoma
ICD-10 Codes:
- C220: Liver cell carcinoma
Also known as:
- Stomach Cancer
- Gastric Cancer
- Malignant Neoplasm of Stomach
- Stomach Tumor
ICD-10 Codes:
- C169: Malignant neoplasm of stomach, unspecified
Also known as:
- Bile Duct Cancer
- Liver Cancer
- Cholangiocarcinoma
- Intrahepatic cholangiocarcinoma
ICD-10 Codes:
- C221: Intrahepatic bile duct carcinoma
What procedures does a Hematology / Oncology Specialist like Dr. O'hara typically perform?
As a Hematology / Oncology Specialist, procedures performed by Dr. Mark O'hara may include:
- 3D Conformal Radiotherapy
- Adaptive Radiation Therapy (ART)
- Adrenalectomy
- Blood Thinning Therapy / Anticoagulation
- Blood Transfusion Consultation
- Blood Transfusion Follow Up
- Bone Excision
- Bone Grafting
Please contact Dr. O'hara's office directly to confirm care for your specific procedure, for more information, or to schedule a consultation.
Does Dr. O'hara accept my insurance?
Dr. O'hara accepts most major insurance plans. Important: Please call our office at before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. O'hara accept in Philadelphia, PA?
Dr. O'hara in Philadelphia, PA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Centene Corporation
Cigna Group
CVS Health (formerly Aetna)
Federal government of the United States
Humana
Independence Health Group
Jefferson Health
Medicare
UnitedHealth Group
View All Insurances
Where is Dr. O'hara's office located?
What is Dr. O'hara's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. O'hara's National Provider Identifier (NPI) number is 1225291933.
What common questions do patients ask about Dr. O'hara?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. O'hara
What is Dr. Mark O'hara's specialty?
Dr. O'hara is a Hematology / Oncology Specialist near Philadelphia, PA.
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. Mark O'hara affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. O'hara is affiliated with Penn Medicine Hospital Of The University Of Pennsylvania, Penn Medicine Penn Presbyterian Medical Center, Virtua Our Lady Of Lourdes Hospital, Virtua Voorhees Hospital, Lankenau Medical Center, Lehigh Valley Health Network- Pocono which are a Castle Connolly Top Hospitals. 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 Mark O'hara accepting new patients in Philadelphia, PA?
Yes, Dr. Mark O'hara is accepting new patients at this time.
Does Dr. Mark O'hara offer online booking?
Please contact Dr. O'hara's office for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Mark O'hara?
Please contact Dr. O'hara's office for information regarding telehealth appointment availability or for scheduling assistance.
Other Hematology / Oncology Specialist Near Philadelphia, PA
GF
Medical Oncologist
Dr. Gabriel Francisco Pereira Aleixo, MD is a Medical Oncologist, who primarily practices in Philadelphia, PA.
Philadelphia, PA

Medical Oncologist
Dr. Stephen Keefe, MD is a Medical Oncologist, who primarily practices in Philadelphia, PA. He is board certified.
Philadelphia, PA

Hematology / Oncology Specialist
Dr. Rachel Jankowitz, MD is a Hematology / Oncology Specialist, who primarily practices in Philadelphia, PA. She is board certified.
Philadelphia, PA
Connect with DR. O'hara
3400 Civic Center Blvd
Philadelphia, PA 19104