Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. John R Demais, MD

Individual provider Anesthesiology Physician · NPI 1558320564

Dr. John R Demais, MD is an Anesthesiology Physician in Millburn, New Jersey. Licensed in New Jersey. Registered with an NPI since 2006.

Licensed in
NJ
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

187 Millburn Ave
Millburn, NJ 07041
Phone: (973) 467-1466
Fax: (973) 467-1422
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 25MA40996 (NJ)

Record details

NPI number1558320564
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 20, 2006
Last updated in NPPESDecember 11, 2009

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