John MarianiDO
John Mariani, DO is an Orthopedic Surgery provider in Sewell, NJ affiliated with 1 ambulatory surgery center in NJ, as of July 2026.
- NPI1811006885
- Registered2006
- Centers1
- StateNJ
- Class of1981
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 Mariani at a glance
- Provider
- John Mariani
- Credential
- DO
- Specialty
- Orthopedic Surgery
- Procedures
- Orthopedic Surgery CPT codes
- Location
- Sewell, NJ
- Medical school
- Philadelphia College of Osteopathic Medicine
- Graduated
- 1981
- NPI registered
- 2006
- NPI
- 1811006885
- 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 Mariani practice?
John Mariani, DO is based in Sewell, NJ and is affiliated with 1 ambulatory surgery center: Summit Surgical Center LLC in Voorhees, NJ. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is John Mariani's NPI number?
John Mariani's National Provider Identifier (NPI) is 1811006885, registered in 2006. Specialty on record: Orthopedic Surgery; credential DO.
Where did John Mariani go to medical school?
John Mariani, DO attended Philadelphia College of Osteopathic Medicine, graduating in 1981.
How many Orthopedic Surgery providers in New Jersey work at ambulatory surgery centers?
147 Orthopedic Surgery surgeons and proceduralists in New Jersey are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, John Mariani among them. The New Jersey Orthopedic Surgery directory lists each one by city with credential, NPI, and center affiliations.
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