Mark DiamondMD
Gastroenterology·Baltimore, MD
Mark Diamond, MD is a Gastroenterology provider in Baltimore, MD affiliated with 2 ambulatory surgery centers in MD, as of July 2026.
- NPI1912081019
- Registered2006
- Centers2
- StateMD
- Class of1974
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.
Mark Diamond at a glance
- Provider
- Mark Diamond
- Credential
- MD
- Specialty
- Gastroenterology
- Procedures
- Gastroenterology CPT codes
- Location
- Baltimore, MD
- Medical school
- Ohio State University College of Medicine
- Graduated
- 1974
- NPI registered
- 2006
- NPI
- 1912081019
- 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 Mark Diamond practice?
Mark Diamond, MD is based in Baltimore, MD and is affiliated with 2 ambulatory surgery centers: Maryland Endoscopy Center LLC in Towson, MD and Baltimore Ambulatory Center For Endoscopy in Baltimore, MD. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Mark Diamond's NPI number?
Mark Diamond's National Provider Identifier (NPI) is 1912081019, registered in 2006. Specialty on record: Gastroenterology; credential MD.
Where did Mark Diamond go to medical school?
Mark Diamond, MD attended Ohio State University College of Medicine, graduating in 1974.
How many Gastroenterology providers in Maryland work at ambulatory surgery centers?
170 Gastroenterology surgeons and proceduralists in Maryland are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Mark Diamond among them. The Maryland Gastroenterology directory lists each one by city with credential, NPI, and center affiliations.
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