Mary Catherine Gill, DNP, APRN, FNP-C
NPI 1700558079 · Family Nurse Practitioner · Charleston, SC
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Catherine Gill, DNP, APRN, FNP-C is a Family Nurse Practitioner provider in Charleston, SC (NPI 1700558079).
Provider details
- NPI number
- 1700558079
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- DNP, APRN, FNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- 25425 (SC)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
4 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
445 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 158 | $99 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 120 | $13 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 49 | $78 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 48 | $13 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 47 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levetiracetam | 547 | 130 |
| Lacosamide | 404 | 61 |
| Lamotrigine | 349 | 73 |
| Cenobamatebrand: Xcopri | 276 | 35 |
| Zonisamide | 222 | 42 |
| Clobazam | 183 | 28 |
| Oxcarbazepine | 128 | 24 |
| Clonazepam | 123 | 24 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-10-04
- Last updated
- 2022-01-04
- Certified
- 2022-01-04
Frequently asked questions
- What is Mary Catherine Gill's NPI number?
- Mary Catherine Gill's National Provider Identifier (NPI) is 1700558079, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Catherine Gill's specialty?
- Mary Catherine Gill is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Catherine Gill located?
- Mary Catherine Gill's practice location on file with NPPES is 171 Ashley Ave, Charleston, SC 29425-0001.
- What is Mary Catherine Gill's phone number?
- The practice phone number listed in the NPPES registry for Mary Catherine Gill is (843) 792-3223.
- Does Mary Catherine Gill accept Medicare?
- Mary Catherine Gill is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Catherine Gill's NPI active?
- Yes — Mary Catherine Gill's NPI (1700558079) is active in the NPPES registry as of the last update on 2022-01-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.