Jonathan EfronM.D.
Colorectal Surgery·Baltimore, MD
Jonathan Efron, M.D. is a Colorectal Surgery provider in Baltimore, MD, as of July 2026.
- NPI1538144647
- Registered2005
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Jonathan Efron at a glance
- Provider
- Jonathan Efron
- Credential
- M.D.
- Specialty
- Colon & Rectal Surgery
- Location
- Baltimore, MD
- NPI registered
- 2005
- NPI
- 1538144647
- 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 Jonathan Efron practice?
Jonathan Efron, M.D. is based in Baltimore, MD. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Jonathan Efron's NPI number?
Jonathan Efron's National Provider Identifier (NPI) is 1538144647, registered in 2005. Specialty on record: Colon & Rectal Surgery; credential M.D.
How many Colorectal Surgery providers in Maryland work at ambulatory surgery centers?
4 Colorectal Surgery surgeons and proceduralists in Maryland are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Jonathan Efron among them. The Maryland Colorectal Surgery directory lists each one by city with credential, NPI, and center affiliations.
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