Ari KaterelosM.D.
Radiation Oncology·San Bernardino, CA
Ari Katerelos, M.D. is a Radiation Oncology provider in San Bernardino, CA, as of July 2026.
- NPI1861607418
- Registered2007
- Class of2005
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Education
Education on record as of August 2026.
Ari Katerelos at a glance
- Provider
- Ari Katerelos
- Credential
- M.D.
- Specialty
- Radiation Oncology
- Location
- San Bernardino, CA
- Medical school
- University of California, Geffen School of Medicine
- Graduated
- 2005
- NPI registered
- 2007
- NPI
- 1861607418
- 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 Ari Katerelos practice?
Ari Katerelos, M.D. is based in San Bernardino, CA. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Ari Katerelos's NPI number?
Ari Katerelos's National Provider Identifier (NPI) is 1861607418, registered in 2007. Specialty on record: Radiation Oncology; credential M.D.
Where did Ari Katerelos go to medical school?
Ari Katerelos, M.D. attended University of California, Geffen School of Medicine, graduating in 2005.
How many Radiation Oncology providers in California work at ambulatory surgery centers?
88 Radiation Oncology surgeons and proceduralists in California are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Ari Katerelos among them. The California Radiation Oncology directory lists each one by city with credential, NPI, and center affiliations.
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