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MARY ASHLEY MERCER MD
NPI 1538796925
Student in an Organized Health Care Education/Training Program in Savannah, GA

Active since March 25, 2020PECOS EnrolledAccepts Medicare Assignment
601 E 66TH ST, SAVANNAH, GA 31405(912) 662-0088(912) 527-6072 Get Directions Write a Review

NPPES record last updated: June 17, 2020. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Jun 17, 2020, Mar 25, 2020 (2 updates tracked since 2020).

About Mary Ashley Mercer Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARY ASHLEY MERCER MD (NPI 1538796925) is an individual student in an organized health care education/training program in Savannah, Georgia, licensed in Georgia (11743) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS and is a graduate of Medical University Of South Carolina College Of Medicine (2018).

NPPES Registry Identity

NPI1538796925
Entity TypeIndividualFemale
Primary Taxonomy390200000X
Provider Legal NameMARY ASHLEY MERCERCredential: MD
Location Address601 E 66TH STSavannah, GA 31405-4519
Mailing Address601 E 66th StSavannah, GA 31405-4519 · (912) 662-0088 · Fax (912) 527-6072
Phone(912) 662-0088
Fax(912) 527-6072
Sole ProprietorYes
Medical School CMSMedical University Of South Carolina College Of MedicineGraduated 2018
Enumeration DateMarch 25, 2020
Last NPPES UpdateJune 17, 20202 updates tracked since enumeration
NPPES CertifiedJune 17, 2020
✔ NPI 1538796925 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyStudent in an Organized Health Care Education/Training ProgramStudent, Health Care
Taxonomy Code390200000X
License✔ Licensed in GA · 11743
Definition
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
601 E 66TH ST, Savannah, GA 31405
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mary Ashley Mercer Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9032549233
PECOS Enrollment IDI20230501000370
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Mary Ashley Mercer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Gateway Behavioral Health Services
60 mi
Community Based Residential Treatment Facility, Mental Illness
121 BURGESS RD
Brunswick, GA 31523
  • Reassigned Medicare billing, Georgia enrollment
  • Medicare enrollment name: Gateway Community Service Board
  • 70 clinicians in this Medicare group
NPI 1124254321 (912) 554-8454

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

NISHA BEARD
Psychiatry & Neurology (Psychiatry)
601 E 66TH ST
SAVANNAH, GA 31405
Chatham County (912) 662-0088
AMANDA ROBINSON MD
Student in an Organized Health Care Education/Training Program
601 E 66TH ST
SAVANNAH, GA 31405
Chatham County (912) 662-0088
DR. ABHIRAM SRIVATSA DO
Student in an Organized Health Care Education/Training Program
601 E 66TH ST
SAVANNAH, GA 31405
Chatham County (404) 727-4018
CHANDANI PATEL
Psychiatry & Neurology (Psychiatry)
601 E 66TH ST
SAVANNAH, GA 31405
Chatham County (912) 662-0088
MAYA NICOLE ROGERS BUSSEY
Student in an Organized Health Care Education/Training Program
601 E 66TH ST
SAVANNAH, GA 31405
Chatham County (912) 662-0088
NISHA RAMCHANDER DO
Student in an Organized Health Care Education/Training Program
601 E 66TH ST
SAVANNAH, GA 31405
Chatham County (912) 662-0088
LORELYS ARROYO RIVERA MD
Psychiatry & Neurology (Psychiatry)
601 E 66TH ST
SAVANNAH, GA 31405
Chatham County (912) 662-0088
JESSICA CAUTHEN
Psychiatry & Neurology (Psychiatry)
601 E 66TH ST
SAVANNAH, GA 31405
Chatham County (912) 662-0088

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mary Ashley Mercer's NPI number?

The NPI number for Mary Ashley Mercer is 1538796925. It was assigned to this individual provider in the NPPES registry on March 25, 2020.

Where is Mary Ashley Mercer located?

Mary Ashley Mercer practices at 601 E 66th St, Savannah, GA 31405. The listed phone number is (912) 662-0088.

What is Mary Ashley Mercer's specialty?

The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.

Is Mary Ashley Mercer enrolled in Medicare?

Yes. Mary Ashley Mercer is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Mary Ashley Mercer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Ashley Mercer reassigns Medicare benefits to Gateway Behavioral Health Services (Brunswick, GA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mary Ashley Mercer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mary Ashley Mercer accept?

Health plans from Ambetter Health list Mary Ashley Mercer as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mary Ashley Mercer was last updated on June 17, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.