Doctor profile · Federal record

Dr. Mary Gallagher, CNP

Family Nurse Practitioner (CMS: Nurse Practitioner) · Family Nurse Practitioner · Charleston, SC

  • NPI 1093258832
  • Accepts Medicare
  • 10 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
171 Ashley Ave
Charleston, SC 294251218
(843) 792-1414
Mailing address
Po Box 751461
Charlotte, NC 282751461

Credentials & registration

NPPES · NUCC
NPI registered
November 2016 — 10 yrs on file
Profile last updated
January 26, 2021
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
363LF0000X — NUCC code
State licenses (2)
South Carolina #24025 · Massachusetts #2273041

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1093258832. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
209
Distinct HCPCS
5
Medicare allowed
$25,227
HCPCS Description Services Patients Avg allowed
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 49 49 $138
G0426 Telehealth consultation, emergency department or initial inpatient, typically 50 minutes communicating with the patient via telehealth 49 48 $105
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 48 47 $105
G0427 Telehealth consultation, emergency department or initial inpatient, typically 70 minutes or more communicating with the patient via telehealth 41 41 $150
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 22 20 $96

In context: peer comparison

Among 70 peers in Charleston Family Nurse Practitioner, average services per provider: 309. This provider delivers 0.7× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$141
Transactions
3
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Abbvie INC. 3 $141.33

By nature of payment

Food and Beverage
$141

Frequently asked questions

Auto-generated from federal data
What is Dr. Mary Gallagher's medical specialty?
Dr. Mary Gallagher practices Family Nurse Practitioner in Charleston, SC.
Where does Dr. Mary Gallagher practice?
Dr. Mary Gallagher practices at 171 Ashley Ave, Charleston, SC 294251218. Office phone: 8437921414.
What is Dr. Mary Gallagher's NPI?
Dr. Mary Gallagher's National Provider Identifier (NPI) is 1093258832, issued by NPPES.
Does Dr. Mary Gallagher accept Medicare assignment?
Yes. Dr. Mary Gallagher accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary Gallagher commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with moderate level of medical decision making (HCPCS 99223); Telehealth consultation, emergency department or initial inpatient, typically 50 minutes communicating with the patient via telehealth (HCPCS G0426); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.