John ButlerM.D.
John Butler, M.D. is an Ophthalmology provider in Salisbury, MD affiliated with 2 ambulatory surgery centers in MD, as of July 2026.
- NPI1174521264
- Registered2005
- Centers2
- StateMD
- Class of1995
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Ambulatory surgery centers
Centers whose service lines match this provider’s. Affiliations change; verify independently.
Education
Education on record as of August 2026.
John Butler at a glance
- Provider
- John Butler
- Credential
- M.D.
- Specialty
- Ophthalmology
- Procedures
- Ophthalmology CPT codes
- Location
- Salisbury, MD
- Medical school
- University of Maryland School of Medicine
- Graduated
- 1995
- NPI registered
- 2005
- NPI
- 1174521264
- 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 John Butler practice?
John Butler, M.D. is based in Salisbury, MD and is affiliated with 2 ambulatory surgery centers: Azar Eye Surgery Center LLC in Salisbury, MD and Peninsula Eye Center PA in Salisbury, MD. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is John Butler's NPI number?
John Butler's National Provider Identifier (NPI) is 1174521264, registered in 2005. Specialty on record: Ophthalmology; credential M.D.
Where did John Butler go to medical school?
John Butler, M.D. attended University of Maryland School of Medicine, graduating in 1995.
How many Ophthalmology providers in Maryland work at ambulatory surgery centers?
223 Ophthalmology surgeons and proceduralists in Maryland are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, John Butler among them. The Maryland Ophthalmology directory lists each one by city with credential, NPI, and center affiliations.
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