John R Demais, MD

Anesthesiology

Millburn, NJ

Specialty

Anesthesiology

Credential

NPI

1558320564

Affiliated Facility

Short Hills Surgery Center

187 Millburn Avenue, Millburn, NJ 07041

(973) 671-0555

Medicare★ 4.9 Google (1654)96% Patient Rating

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Procedures & Specialty

John R Demais specializes in Anesthesiology procedures performed in an outpatient ambulatory surgical setting.

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About this profile: Surgeon information is sourced from the CMS National Plan and Provider Enumeration System (NPPES) NPI Registry and reflects the practice address on file as of February 2026. Facility affiliation is based on matching practice address to CMS-certified ambulatory surgery center locations.