Doctor profile · Federal record

Dr. Margaret Formoso, FNP-C

Family Nurse Practitioner · Washington, DC

  • NPI 1548940422
  • 3 yrs on file
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2021 K St Nw Ste 600
Washington, DC 200061051
(202) 350-0721

Credentials & registration

NPPES · NUCC
NPI registered
July 2023 — 3 yrs on file
Profile last updated
February 20, 2024
Specialty taxonomy
363LF0000X — NUCC code
State license (1)
District of Columbia #NP1050422

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1548940422. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$276
Transactions
10
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
GlaxoSmithKline, LLC. 7 $203.78
Optinose US, INC. 3 $72.49

By nature of payment

Food and Beverage
$276

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
27
Patients
14
Total drug cost
$301
Drug Type Claims Patients Total cost
Zolpidem Tartrate Generic 15 14 $218
Alprazolam Generic 12 0 $82

Frequently asked questions

Auto-generated from federal data
What is Dr. Margaret Formoso's medical specialty?
Dr. Margaret Formoso practices Family Nurse Practitioner in Washington, DC.
Where does Dr. Margaret Formoso practice?
Dr. Margaret Formoso practices at 2021 K St Nw Ste 600, Washington, DC 200061051. Office phone: 2023500721.
What is Dr. Margaret Formoso's NPI?
Dr. Margaret Formoso's National Provider Identifier (NPI) is 1548940422, issued by NPPES.