John GreculaMD
Radiation Oncology·Columbus, OH
John Grecula, MD is a Radiation Oncology provider in Columbus, OH, as of July 2026.
- NPI1871691592
- Registered2006
- Class of1987
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Education
Education on record as of August 2026.
John Grecula at a glance
- Provider
- John Grecula
- Credential
- MD
- Specialty
- Radiation Oncology
- Location
- Columbus, OH
- Medical school
- Northeastern Ohio University College of Medicine
- Graduated
- 1987
- NPI registered
- 2006
- NPI
- 1871691592
- Snapshot
- July 2026
Identity, specialty, and affiliations change over time. This is not an endorsement, and not clinical, billing, or legal advice. Providers may request corrections at founders@datalilyai.com. Read the DataLily AI data methodology.
Questions
Where does John Grecula practice?
John Grecula, MD is based in Columbus, OH. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is John Grecula's NPI number?
John Grecula's National Provider Identifier (NPI) is 1871691592, registered in 2006. Specialty on record: Radiation Oncology; credential MD.
Where did John Grecula go to medical school?
John Grecula, MD attended Northeastern Ohio University College of Medicine, graduating in 1987.
How many Radiation Oncology providers in Ohio work at ambulatory surgery centers?
43 Radiation Oncology surgeons and proceduralists in Ohio are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, John Grecula among them. The Ohio Radiation Oncology directory lists each one by city with credential, NPI, and center affiliations.
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