Christopher CallahanMD
Geriatric Medicine·Indianapolis, IN
Christopher Callahan, MD is a Geriatric Medicine provider in Indianapolis, IN, as of July 2026.
- NPI1104867043
- Registered2006
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Christopher Callahan at a glance
- Provider
- Christopher Callahan
- Credential
- MD
- Specialty
- Geriatric Medicine
- Location
- Indianapolis, IN
- NPI registered
- 2006
- NPI
- 1104867043
- 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 Christopher Callahan practice?
Christopher Callahan, MD is based in Indianapolis, IN. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Christopher Callahan's NPI number?
Christopher Callahan's National Provider Identifier (NPI) is 1104867043, registered in 2006. Specialty on record: Geriatric Medicine; credential MD.
How many Geriatric Medicine providers in Indiana work at ambulatory surgery centers?
9 Geriatric Medicine surgeons and proceduralists in Indiana are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Christopher Callahan among them. The Indiana Geriatric Medicine directory lists each one by city with credential, NPI, and center affiliations.
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