Doctor profile · Federal record

Dr. Margaret Stewart, M.D.

Dermatology Physician · Dermatology Physician · Portsmouth, NH

  • NPI 1649375072
  • 20 yrs on file
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
155 Borthwick Ave, Suite 201 West
Portsmouth, NH 038017156
(603) 433-9575
fax (603) 430-0104
Mailing address
280 Merrimack St Ste 311
Lawrence, MA 018431779

Credentials & registration

NPPES · NUCC
NPI registered
September 2006 — 20 yrs on file
Profile last updated
October 18, 2017
Specialty taxonomy
207N00000X — NUCC code
State licenses (2)
New Hampshire #11839 · Massachusetts #159113

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1649375072. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$42
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
ABBVIE INC. 1 $42.00

By nature of payment

Grant
$42

Frequently asked questions

Auto-generated from federal data
What is Dr. Margaret Stewart's medical specialty?
Dr. Margaret Stewart practices Dermatology Physician in Portsmouth, NH.
Where does Dr. Margaret Stewart practice?
Dr. Margaret Stewart practices at 155 Borthwick Ave, Portsmouth, NH 038017156. Office phone: 6034339575.
What is Dr. Margaret Stewart's NPI?
Dr. Margaret Stewart's National Provider Identifier (NPI) is 1649375072, issued by NPPES.