John McneilM.D.
Internal Medicine·Silver Spring, MD
John Mcneil, M.D. is an Internal Medicine provider in Silver Spring, MD, as of July 2026.
- NPI1407828254
- Registered2006
- Class of1989
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Education
Education on record as of August 2026.
John Mcneil at a glance
- Provider
- John Mcneil
- Credential
- M.D.
- Specialty
- Internal Medicine
- Procedures
- Internal Medicine CPT codes
- Location
- Silver Spring, MD
- Medical school
- Howard University College of Medicine
- Graduated
- 1989
- NPI registered
- 2006
- NPI
- 1407828254
- 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 Mcneil practice?
John Mcneil, M.D. is based in Silver Spring, MD. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is John Mcneil's NPI number?
John Mcneil's National Provider Identifier (NPI) is 1407828254, registered in 2006. Specialty on record: Internal Medicine; credential M.D.
Where did John Mcneil go to medical school?
John Mcneil, M.D. attended Howard University College of Medicine, graduating in 1989.
How many Internal Medicine providers in Maryland work at ambulatory surgery centers?
47 Internal Medicine surgeons and proceduralists in Maryland are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, John Mcneil among them. The Maryland Internal Medicine directory lists each one by city with credential, NPI, and center affiliations.
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