Find Doctors and Dentists Near You
The location you tried did not return a result. Please enter a valid 5-digit Zip Code.

You can also search by physician, practice, or hospital name

OVERVIEW

Dr. Knapp graduated from the University of Cincinnati College of Medicine in 1997. He works in Westerville, OH and 2 other locations and specializes in Oncology and Hematology. Dr. Knapp is affiliated with Grady Memorial Hospital.

PATIENT'S PERSPECTIVE

Explains conditions and treatments
Takes time to answer my questions
Provides follow-up as needed
Office cleanliness

Based on patient feedback.

RATINGS AND REVIEWS

Dr. Knapp's Rating
5.0
Patient Perspective
5.0 Explains conditions and treatments
5.0 Takes time to answer my questions
5.0 Provides follow-up as needed
Office Rating
Showing ratings for:
495 Cooper Rd, Westerville, OH, 43081
n/a Average office wait time
5.0 Office cleanliness
5.0 Courteous staff
5.0 Scheduling flexibility
Zangmeister Cancer Center
495 Cooper Rd
Westerville, OH, 43081
21 REVIEWS
Showing 1-20 of 21 reviews
"I am very impressed with the amount of time Dr. Knapp spends with me. He is patient, professional, and I leave his office feeling confident that he will provide the best care for me based on my condition. I highly recommend him."
  • July 16, 2024
"I have been very happy with Dr Knapp and his follow-up care after my surgery. He is very thorough and takes whatever time is necessary to address all concerns!"
  • June 28, 2024
"My Physician is Dr Hiral Shaw and she is very concerned about my well being and professionally Precribe's the course of actions we need to take and has a wonderful staff to make sure you're comfortable. Thanks "
  • May 21, 2024
"Dr. Knapp was very informative and helpful very thorough very pleasant would highly recommend to anyone!"
  • April 16, 2024
"He was not a nice doctor to me he even ask me not to come back to his practice i am still confused why this was 8 years ago i"
  • March 6, 2024
"Dr Knapp is an outstanding person and doctor. He listens and never makes you feel rushed. He works well with all my medical doctors. He cares!"
  • February 28, 2024
"Dr Knapp is a wonderful doctor. He takes the time to listen to you and explain your medical history. He works with my other doctors to assure I get the best medical care."
  • February 22, 2024
"Dr. Knapp was wonderful! He was very thorough and explained things in a way that gave me confidence. No fear mongering, just the facts."
  • January 12, 2024
"Explains things. Shows he cares. Involves you in planned treatment. "
  • June 24, 2023
"I highly recommend Dr. Knapp and staff. He and his staff always listen and help with any questions and explain everything"
  • April 20, 2023
"Extremely happy with my care. Dr Knapp listens to my thoughts and opinions and explains his recommendations. "
  • March 23, 2023
"My brother was also a patient of Dr Knapp - altho my brother passed away he was very happy with Dr Knapps care - as I am also. I am with Dr knapp for the long haul. "
  • March 21, 2023
"I have seen Dr. nap once a month for over two years. He is a complete professional spends a lot of time with me answering questions and has taken me through the worst of my multiple myeloma to where I’m pretty stable right now. He and the entire staff at Sangmeister are incredibly good at what they do very kind and caring from labs to the people that check you in to the secretaries and up from the chemo pod."
  • January 26, 2023
"It was my first time visiting this office. He was thorough and kind, patient and was attentive to my questions and concerns. He ran the normal tests but wasn’t a fan of running unnecessary tests based on what he saw in past records from other physicians. He was great!"
  • December 13, 2022
"Hi would highly recommend Dr. Knapp. He is a compassionate person he cares about his patients. He listens to them and understands them. The way the world is now that is a big plus. You can talk to Dr. Knapp about your concerns. "
  • October 4, 2022
"Dr. Knapp, is a very caring person. He always listens to his patients and understands how they feel and what they are going though. He is very compassionate. I would highly recommend Doctor Knapp."
  • October 4, 2022
"Dr Knapp was very thorough and did not rush this first visit. I was impressed that he took as much time as he did to review my medical history and explain next steps. "
  • September 30, 2022
"I have been going to Dr. Knapp for many years. He is really the perfect into my yang he’s very kind calm has a bit of a sense of humor and makes me feel quite like it’s personal. I lucked out!"
  • April 5, 2022
"Dr Napp he’s the best oncologist in Columbus Ohio he’s patient he answer all my questions he explain to me the way I understand and I’m very happy to visit him every time I just wanna say thank you so much for good care of me I would not choose any other doctor over you he’s the best I highly recommend Mark Napp thank you ."
  • April 1, 2022
"Dr. Knapp is the best Oncologist in Ohio in my opinion! I am 7 years cancer free now, and along with the Zangmeister Center, I wouldn’t have wanted to be any place else! He is extremely smart, attentive and thorough! and that is very important when you are fighting for your life!!!"
  • December 24, 2021

LOCATIONS

495 Cooper Rd
Westerville, OH, 43081
3100 Plaza Properties Blvd
Columbus, OH, 43219
Mon6:30 am - 5:00 pm
Tue6:30 am - 5:00 pm
Wed6:30 am - 5:00 pm
Thu6:30 am - 5:00 pm
Fri7:30 am - 3:30 pm
SatClosed
SunClosed
111 S Grant Ave
Columbus, OH, 43215

PROCEDURES PERFORMED

SPECIALTIES

CERTIFICATIONS & EDUCATION

EDUCATION & TRAINING

Medical School
University Of Cincinnati College Of Medicine
Graduated 1997
Residency
St Vincent Hospital

Languages Spoken

  • Spanish
  • English

INSURANCE PLANS ACCEPTED  (51)

Please verify insurance information directly with your doctor's office as it may change frequently.
  • BCBS IL PPO
  • Coventry HealthAmerica PPO
  • UHC Options PPO
  • Humana ChoiceCare Network PPO
  • CIGNA Open Access Plus
  • UHC Navigate HMO
  • Aetna Managed Choice POS Open Access
  • CIGNA HMO
  • Anthem Blue Preferred HMO
  • BCBS Blue Card PPO
  • Humana Choice POS
  • Aetna HMO
  • MMOH SuperMed POS Select
  • UHC Navigate POS
  • Aetna Choice POS II
  • Multiplan PPO
  • First Health PPO
  • Anthem Blue Access PPO
  • PHCS PPO
  • HealthSpan Access PPO
  • Aetna Signature Administrators PPO
  • UHC Choice Plus POS
  • CIGNA PPO
  • Aetna Health Network Option Open Access
  • MMOH SuperMed PPO Plus
  • Medmutual OhioHealth Network MRF
  • Anthem Blue Preferred Plus POS
  • Aexcel PPO
  • MEDICA CHOICE WITH UNITEDHEALTHC
  • Mercy Health - HMO
  • MMOH SuperMed HMO
  • Oscar HMO
  • UHC NAVIGATE PLUS POS
  • CareSource Ohio
  • UHC Nexus Open Access
  • Aetna Elect Choice EPO Open Access
  • Aetna Innovation Health Aetna Premier Care Network Plus
  • Aetna Open Choice PPO
  • Aetna Premier Care Network APCN Choice POS II OAMC
  • Anthem Blue Preferred POS OH
  • Humana / ChoiceCare Network PPO
  • Humana/ChoiceCare+ Network PPO
  • Medica Choice With UHC
  • MMOH Dayton
  • MMOH NE Ohio
  • MMOH Adena
  • MMOH HMO
  • Oscar HMO OH
  • SummaCare Select Fully Insured
  • Anthem Pathway X HMO Tiered Catastrophic - OH
  • Highmark BCBS MY Direct Blue EPO

HOSPITAL AFFILIATIONS

SIMILAR PROVIDERS

Data Transparency and Trust: Understanding WebMD Doctor Listings and Reviews

We know that finding the right doctor or provider is important to your health. That’s why we want to ensure you have confidence in the provider profiles and listings you see on WebMD Care. Our provider data is sourced from the physicians themselves as well as publicly available databases. Any doctor or provider who claims their profile by verifying themselves can update their information and provide additional data on their specialties, education, accepted insurances, conditions they treat, and procedures they perform.

All the physician and provider reviews on WebMD Care are provided by users just like you. Knowing these reviews provide insight into how other patients feel about a doctor, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Providers are not able to remove or modify reviews on their own. Reviews can only be removed after an internal review by our customer service team.

We value your input and encourage you to reach out to our support team if you encounter any issues.