Robert HesselgesserMD
Robert Hesselgesser, MD is a Radiation Oncology provider in Orange, CA, as of July 2026.
- NPI1710979687
- Registered2005
- Class of1971
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Education
Education on record as of August 2026.
Robert Hesselgesser at a glance
- Provider
- Robert Hesselgesser
- Credential
- MD
- Specialty
- Radiation Oncology
- Location
- Orange, CA
- Medical school
- New York Medical College
- Graduated
- 1971
- NPI registered
- 2005
- NPI
- 1710979687
- 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 Robert Hesselgesser practice?
Robert Hesselgesser, MD is based in Orange, CA. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Robert Hesselgesser's NPI number?
Robert Hesselgesser's National Provider Identifier (NPI) is 1710979687, registered in 2005. Specialty on record: Radiation Oncology; credential MD.
Where did Robert Hesselgesser go to medical school?
Robert Hesselgesser, MD attended New York Medical College, graduating in 1971.
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, Robert Hesselgesser among them. The California Radiation Oncology directory lists each one by city with credential, NPI, and center affiliations.
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