Brendan O'NeillM.D.
Dermatology·Flagstaff, AZ
Brendan O'Neill, M.D. is a Dermatology provider in Flagstaff, AZ, as of July 2026.
- NPI1013170695
- Registered2008
- Class of2007
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Education
Education on record as of August 2026.
Brendan O'Neill at a glance
- Provider
- Brendan O'Neill
- Credential
- M.D.
- Specialty
- Dermatology
- Location
- Flagstaff, AZ
- Medical school
- Drexel University College of Medicine
- Graduated
- 2007
- NPI registered
- 2008
- NPI
- 1013170695
- 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 Brendan O'Neill practice?
Brendan O'Neill, M.D. is based in Flagstaff, AZ. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Brendan O'Neill's NPI number?
Brendan O'Neill's National Provider Identifier (NPI) is 1013170695, registered in 2008. Specialty on record: Dermatology; credential M.D.
Where did Brendan O'Neill go to medical school?
Brendan O'Neill, M.D. attended Drexel University College of Medicine, graduating in 2007.
How many Dermatology providers in Arizona work at ambulatory surgery centers?
75 Dermatology surgeons and proceduralists in Arizona are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Brendan O'Neill among them. The Arizona Dermatology directory lists each one by city with credential, NPI, and center affiliations.
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