Doctor profile · Federal record

Dr. Mary Gast, CRNP

Adult Health Nurse Practitioner · Adult Health Nurse Practitioner · Georgetown, DE

  • NPI 1396963609
  • 19 yrs on file
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
21748 Roth Ave
Georgetown, DE 199473239
(800) 461-8262
fax (302) 633-5379
Mailing address
1601 Kirkwood Hwy
Wilmington, DE 198054917

Credentials & registration

NPPES · NUCC
NPI registered
April 2007 — 19 yrs on file
Profile last updated
February 15, 2024
Specialty taxonomy
363LA2200X — NUCC code
State licenses (2)
Maryland #R157914 · Delaware #LP-0010565

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1396963609. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
29
Distinct HCPCS
1
Medicare allowed
$4,799
HCPCS Description Services Patients Avg allowed
99350 Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes 29 26 $165

In context: peer comparison

Among 1 peers in this city , average services per provider: 29. This provider delivers 1.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
24
Patients
0
Total drug cost
$761
Drug Type Claims Patients Total cost
Furosemide Generic 13 0 $96
Gabapentin Generic 11 0 $665

Frequently asked questions

Auto-generated from federal data
What is Dr. Mary Gast's medical specialty?
Dr. Mary Gast practices Adult Health Nurse Practitioner in Georgetown, DE.
Where does Dr. Mary Gast practice?
Dr. Mary Gast practices at 21748 Roth Ave, Georgetown, DE 199473239. Office phone: 8004618262.
What is Dr. Mary Gast's NPI?
Dr. Mary Gast's National Provider Identifier (NPI) is 1396963609, issued by NPPES.
What procedures does Dr. Mary Gast commonly perform?
Top Medicare-reported procedures in 2023: Residence visit for established patient with high level of medical decision making (HCPCS 99350). Source: CMS Medicare Physician & Other Practitioners file.