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

Dr. Mark Maddox O'Brien, MD, MPH

Individual provider Developmental - Behavioral Pediatrics Physician · NPI 1972726495

Dr. Mark Maddox O'Brien, MD, MPH is a Developmental - Behavioral Pediatrics Physician in Cranston, Rhode Island. Licensed in Rhode Island. Registered with an NPI since 2007.

Licensed in
RI
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
MPH — Master of Public Health
A graduate degree in population health.

See every abbreviation used in this directory →

Practice location Address checks out

6 Harrington Rd
Cranston, RI 02920-3080
Phone: (401) 462-2760
Fax: (401) 462-2757
Show map & directions

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

Specialties & licences

Developmental - Behavioral Pediatrics Physician (primary) Taxonomy 2080P0006X · Licence MD05818 (RI)

Record details

NPI number1972726495
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , MPH
Sole proprietorNo
NPI enumeratedApril 11, 2007
Last updated in NPPESJuly 8, 2007

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