Sharmaine Mercer, MSN, AGACNP, PMHNP
NPI 1831805274 · Acute Care Nurse Practitioner · Smyrna, GA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sharmaine Mercer, MSN, AGACNP, PMHNP is a Acute Care Nurse Practitioner provider in Smyrna, GA (NPI 1831805274).
Provider details
- NPI number
- 1831805274
- Entity type
- Individual
- Primary specialty
- Acute Care Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MSN, AGACNP, PMHNP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 282183 (GA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
3 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
25 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 25 | $177 |
Typical Medicare-allowed amounts for these services range $177–$177 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$24 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-01-30
- Last updated
- 2026-03-09
- Certified
- 2026-03-09
Frequently asked questions
- What is Sharmaine Mercer's NPI number?
- Sharmaine Mercer's National Provider Identifier (NPI) is 1831805274, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sharmaine Mercer's specialty?
- Sharmaine Mercer is listed in the NPPES registry with a primary specialty of Acute Care Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Sharmaine Mercer located?
- Sharmaine Mercer's practice location on file with NPPES is 3188 Atlanta Rd Se, Smyrna, GA 30080-8256.
- What is Sharmaine Mercer's phone number?
- The practice phone number listed in the NPPES registry for Sharmaine Mercer is (404) 787-4424.
- Does Sharmaine Mercer accept Medicare?
- Sharmaine Mercer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sharmaine Mercer's NPI active?
- Yes — Sharmaine Mercer's NPI (1831805274) is active in the NPPES registry as of the last update on 2026-03-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.