MRS. SANDY MARCHAS DUNCAN (APRN) – Adult Health Nurse Practitioner, NPI 1255336103

MRS. SANDY MARCHAS DUNCAN (APRN) is a healthcare provider. based in Marietta, Georgia. specializing in NURSE PRACTITIONER. They hold the professional credentials APRN. They hold a License No. 149029 (GA). The NPI Number for MRS. SANDY MARCHAS DUNCAN (APRN) is 1255336103

Main info

Female
28 Years Of Experience
Accepts Medicare Assignment
Name
MRS. SANDY MARCHAS DUNCAN (APRN)
NPI
1255336103
Phone
(770) 424-6893
Address
55 WHITCHER ST NE
Enumeration Date
16 June 2005
Last Update Date
16 July 2012

Doctor Profile

Medical School Name
OTHER
Secondary Phone
4046055000
Graduation Year
1998 (28 years ago)
PAC ID
1557254760
Group Practice PAC ID
0345321691
Professional Enrollment ID
I20040203000400
Address ID
GA303091281AT1968XNWXX401
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

9,652 NURSE PRACTITIONER in GA

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Provider Addresses for MRS. SANDY MARCHAS DUNCAN (APRN)

  • 55, Whitcher Street Northwest, Elizabeth, Marietta, Cobb, Georgia, 30060, United States

    SUITE 350

    MARIETTA, GA 300601155

    Phone: (770) 424-6893

    Fax: (678) 819-0357

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 10 Open Payments records for all available years, with a total value of $310.

Total Amount is formed as General ($310) + Research ($0) + Ownership ($0) = $310.

Last reported payment date: 2024-08-21 • Largest payer in this snapshot: Boston Scientific Corporation ($78).

Total Amount

$310

General + Research + Ownership

Payments

10

Total payment records

General Amount

$310

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-08-21

Latest reported date

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2004-02-03

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Past revalidation due date

Earliest CMS due date was 2023-08-31 (1012 days ago).

Enrollment records

1

Earliest due date

2023-08-31

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20040203000400INurse PractitionerGA2023-08-31

What to do next

  • Verify current status on the CMS Revalidation Lookup Tool immediately.
  • Complete revalidation in PECOS or contact your Medicare Administrative Contractor (MAC).
  • Overdue revalidation can lead to deactivation of Medicare billing privileges.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 30060)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 0345321691View full group profile
NameSpecialtyState
Nurse PractitionerTN
-GA
-GA
-GA
Nurse PractitionerGA
Internal MedicineOH
Nurse PractitionerGA
Advanced Heart Failure And Transplant Cardiology, Cardiovascular Disease (Cardiology)GA
Cardiovascular Disease (Cardiology)GA
-GA

Reviews

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Frequently asked questions

Can I verify MRS. SANDY MARCHAS DUNCAN (APRN) with an NPI only?
You can start verification with NPI 1255336103 for MRS. SANDY MARCHAS DUNCAN (APRN), then check state licensing separately.
Is MRS. SANDY MARCHAS DUNCAN (APRN) listed as active for patients and plans?
The listing shows MRS. SANDY MARCHAS DUNCAN (APRN) as active in the NPI system.
What is MRS. SANDY MARCHAS DUNCAN (APRN) best known for clinically?
Directory data describes MRS. SANDY MARCHAS DUNCAN (APRN) with Adult Health Nurse Practitioner. Clinical services aligned with this taxonomy classification.
Where should I expect MRS. SANDY MARCHAS DUNCAN (APRN) on a map?
Expect Marietta, Georgia as a primary anchor for MRS. SANDY MARCHAS DUNCAN (APRN) unless the record lists multiple sites.
How many locations tie to this NPI?
2 practice locations appear in the available data.

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