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Phone: 800-275-6401
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To schedule an appointment

Providers call:1.800.332.8901
Patients call:1.800.275.6401

This provider sees patients at the following locations:

Hematology Oncology Knapper Clinic Danville
100 N Academy Ave
Danville, PA 17822

There is no publicly available rating for this care provider for one or more of the following reasons:
  1. He or she does not see patients in the outpatient clinic setting.
  2. He or she sees patients, but has not yet received the minimum number of Patient Satisfaction Reviews. To be eligible for display, we require a minimum of 40 surveys. This ensures that the rating is accurate and statistically reliable.
  3. He or she is a community provider, not a Geisinger-employed provider. Community providers tend to see patients in their own private outpatient practices, which we do not survey.

Joseph J. L. Vadakara, MD Visit for information on Joseph J. L. Vadakara, MD. Find contact information, medical education, affiliated hospitals and more.
Overall Rating:
4.6 out of 5
1 398 ratings

Practicing Specialties:

  • Hematology, Board Certified, 2013
  • Medical Oncology, Board Certified, 2013
  • Cancer


  • Medical College-Thiruvananthapuram-U. of Kerala 2002


  • Hahnemann University Hospital 2009


  • Fox Chase Cancer Center 2013

Clinical Interests:

Dr. Vadakara specializes in treating solid tumors, hematologic malignancies and benign hematology.

Professional Memberships:

  • American College of Physicians
  • American Society of Clinical Oncology

Patient Satisfaction Ratings:

The Patient Satisfaction Rating is an average of all responses to care provider-related questions on our nationally recognized Press Ganey Patient Satisfaction Survey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Learn more about our survey >
1. Friendliness/courtesy of provider
- 4.7 out of 5
2. Friendliness/courtesy of provider
- 4.8 out of 5
3. Provider explanations of prob/condition
- 4.7 out of 5
4. Provider explanations of prob/condition
- 4.7 out of 5
5. Provider concern for questions/worries
- 4.6 out of 5
6. Provider concern for questions/worries
- 4.7 out of 5
7. Provider efforts to include in decisions
- 4.6 out of 5
8. Provider efforts to include in decisions
- 4.7 out of 5
9. Provider information about medications
- 4.6 out of 5
10. Provider information about medications
- 4.7 out of 5
11. Provider instructions for follow-up care
- 4.6 out of 5
12. Provider instructions for follow-up care
- 4.7 out of 5
13. Provider spoke using clear language
- 4.6 out of 5
14. Provider spoke using clear language
- 4.7 out of 5
15. Time provider spent with patient
- 4.6 out of 5
16. Time provider spent with patient
- 4.6 out of 5
17. Patients' confidence in provider
- 4.6 out of 5
18. Patients' confidence in provider
- 4.7 out of 5
19. Likelihood of recommending provider
- 4.6 out of 5
20. Likelihood of recommending provider
- 4.7 out of 5

Patient Comments:

The comments are submitted by patients (or their caregivers) and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of Geisinger. Learn more about our survey >
Sep 25
I already recommended Dr. Vadakara as a very good doctor an will continue to tell everyone how caring he is
Aug 26
New doctor, don't know 9 & 10.
Jul 21
Dr. Vadakara patiently (pun intended) answered my questions, which were kind of complicated. He seems very knowledgeable about my condition, & inspires trust in his judgment.
Jul 2
I liked the metaphor used to describe difference between a CAT scan & PET scan used by *Dr. V_____ _____ talked to me in laymen terms!!
May 26
When Dr. Vadakara saw a spot on lung from the CAT scan, he wanted me to go to a lung specialist. I didn't want to go. He recommended I go. If it wasn't for him, I wouldn't have known of my sarcoidosis.
May 7
Apr 29
March 27
Dr. Vadakara treats me was if I'm family, asks me intelligent questions gives good explanations give best answers he can and if he can't gets them for me. This cancer is not his specialty but he has made {illegible or inappropriate content} fix me up with doctor at the top of the field.
March 27
This dr. is excellent in all ways I would ask for him again.
March 13
Doctor concerns about situation and went above & beyond to assist with my condition with whatever medications and procedures that were available to consider.
March 13
Dr. Vadakara is very good at explaining everything. Thank you Dr. Vadakara for being so caring.
Feb 27
The doctor asked me why I had bags under my eyes and why I was wearing pressure hose, but he made no recommendations. He asked "Do you want a CT scan?" I am 87 years old and I have no problem with my mortality.
Feb 16
Dr Vadakara always did his best to make me feel comfortable about any problem I had and took his time with me.
Feb 13
i had been with DR. Quiery prior to seeing this doctor. i seen this doctor in August of 2014 for the first time. i was concerned because i had the most confidence in doctor Quiery but this doctor has proven to be wonderful. he is very kind, caring and understanding with all my questions and concerns.
Jan 29
Very satisfied with this hematologist!
Jan 15
Information about my condition and continuing same treatment was welcome news.
Dec 31, 2014
Its a complicated problem, still feel I don't have a clear picture, but feel he was a clear as possible given complexity.
Dec 31, 2014
Bad experience never in a million years would I ever recommend this doctor not EVEN to my worst enemy.
Dec 29, 2014
Dr. Vadakara is excellent. Very patient and answered all questions. I felt like I was his only patient. Very impressed with him & staff.'