John DalenaM.D.
Gastroenterology·Florham Park, NJ
John Dalena, M.D. is a Gastroenterology provider in Florham Park, NJ affiliated with 2 ambulatory surgery centers in NJ, as of July 2026.
- NPI1215944582
- Registered2006
- Centers2
- StateNJ
- Class of1985
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 Dalena at a glance
- Provider
- John Dalena
- Credential
- M.D.
- Specialty
- Gastroenterology
- Procedures
- Gastroenterology CPT codes
- Location
- Florham Park, NJ
- Medical school
- Rutgers New Jersey Medical School
- Graduated
- 1985
- NPI registered
- 2006
- NPI
- 1215944582
- 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 Dalena practice?
John Dalena, M.D. is based in Florham Park, NJ and is affiliated with 2 ambulatory surgery centers: Florham Park Endoscopy Center in Florham Park, NJ and Summit Medical Group PA Dba Summit Medical Group Ambulatory Surgery Center in Berkeley Heights, NJ. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is John Dalena's NPI number?
John Dalena's National Provider Identifier (NPI) is 1215944582, registered in 2006. Specialty on record: Gastroenterology; credential M.D.
Where did John Dalena go to medical school?
John Dalena, M.D. attended Rutgers New Jersey Medical School, graduating in 1985.
How many Gastroenterology providers in New Jersey work at ambulatory surgery centers?
180 Gastroenterology surgeons and proceduralists in New Jersey are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, John Dalena among them. The New Jersey Gastroenterology directory lists each one by city with credential, NPI, and center affiliations.
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