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

Mrs. Sandy Marchas Duncan, APRN

Individual provider Adult Health Nurse Practitioner · NPI 1255336103

Mrs. Sandy Marchas Duncan, APRN is a Nurse Practitioner in Marietta, Georgia. Qualified in 1998, 28 years ago. Practices with Piedmont Cardiology of Atlanta, LLC, a 479-clinician group and accepts Medicare assignment. Licensed in Georgia.

Years since qualifying
28
Licensed in
GA
In the registry since
2005
What do these letters mean?
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.

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Practice location Address checks out

55 Whitcher St NE Ste 350
Marietta, GA 30060-1155
Phone: (770) 424-6893
Fax: (678) 819-0357
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Adult Health Nurse Practitioner (primary) Taxonomy 363LA2200X · Licence 149029 (GA)

Record details

NPI number1255336103
Entity typeIndividual (Type 1)
GenderFemale
Credentials APRN
Sole proprietorNo
NPI enumeratedJune 16, 2005
Last updated in NPPESJuly 16, 2012

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 1998 (28 years in practice)
Group practice Piedmont Cardiology Of Atlanta, Llc — 479 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Marietta