Healthcare Provider Details

I. General information

NPI: 1043250079
Provider Name (Legal Business Name): DENNIS ARTHUR O'BRIEN M.D.
Entity Type: Individual
Gender: Male
Sole Proprietor: Y

II. Dates (important events)

Enumeration Date: 06/07/2006
Last Update Date: 06/08/2026
Certification Date: 06/08/2026
Deactivation Date:
Reactivation Date:

III. Provider practice location address

223 MEDICAL CENTER DR
RIVERDALE GA
30274-2640
US

IV. Provider business mailing address

5325 BRODER BLVD
DUBLIN CA
94568-3309
US

V. Phone/Fax

Practice location:
  • Phone: 770-991-8500
  • Fax:
Mailing address:
  • Phone:
  • Fax:

VI. Provider taxonomy

Scope of Practice (Provider specialty)

# 1
Primary TaxonomyY
Taxonomy Code2084P0800X
TaxonomyPsychiatry Physician
License NumberC161834
License Number StateCA
# 2
Primary TaxonomyN
Taxonomy Code2084P0800X
TaxonomyPsychiatry Physician
License Number025893
License Number StateGA

VIII. Authorized Official

Name:
Title or Position:
Credential:
Phone: