Mark JohnsonMD
Surgery·Portsmouth, VA
Mark Johnson, MD is a Surgery provider in Portsmouth, VA, as of July 2026.
- NPI1235142357
- Registered2006
- Class of2006
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Education
Education on record as of August 2026.
Mark Johnson at a glance
- Provider
- Mark Johnson
- Credential
- MD
- Specialty
- Surgery
- Location
- Portsmouth, VA
- Medical school
- University of Massachusetts Medical School
- Graduated
- 2006
- NPI registered
- 2006
- NPI
- 1235142357
- 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 Johnson practice?
Mark Johnson, MD is based in Portsmouth, VA. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Mark Johnson's NPI number?
Mark Johnson's National Provider Identifier (NPI) is 1235142357, registered in 2006. Specialty on record: Surgery; credential MD.
Where did Mark Johnson go to medical school?
Mark Johnson, MD attended University of Massachusetts Medical School, graduating in 2006.
How many Surgery providers in Virginia work at ambulatory surgery centers?
6 Surgery surgeons and proceduralists in Virginia are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Mark Johnson among them. The Virginia Surgery directory lists each one by city with credential, NPI, and center affiliations.
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