DR. MARGARET I STEWART M.D.
NPI 1649375072
Dermatology in Portsmouth, NH

Active since September 13, 2006
155 BORTHWICK AVE, SUITE 201 WEST, PORTSMOUTH, NH 03801(603) 433-9575(603) 430-0104 Get Directions Write a Review

NPPES record last updated: October 18, 2017. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Margaret I Stewart M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARGARET I STEWART M.D. (NPI 1649375072) is an individual dermatology provider in Portsmouth, New Hampshire, licensed in New Hampshire (11839) and active in the NPI registry since September 2006.

NPPES Registry Identity

NPI1649375072
Entity TypeIndividualFemale
Primary Taxonomy207N00000X
Provider Legal NameDR. MARGARET I STEWARTCredential: M.D.
Location Address155 BORTHWICK AVE, SUITE 201 WESTPortsmouth, NH 03801-7156
Mailing Address280 Merrimack St Ste 311Lawrence, MA 01843-1779 · (978) 691-5690 · Fax (978) 691-5693
Fax(603) 430-0104
Sole ProprietorNo
Enumeration DateSeptember 13, 2006
Last NPPES UpdateOctober 18, 2017
NPI 1649375072 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians
Taxonomy Code207N00000X
Licenses Licensed in NH · 11839 Licensed in MA · 159113
Definition

A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.

155 BORTHWICK AVE, Portsmouth, NH 03801

Other Identifiers 12

Other022071ME · Anthem Maine
OtherJ19743MA · Bcbs Massachusetts
OtherP00366953NH · Railroad Medicare
Other401347MA · Harvard
OtherP00126157MA · Railroad Medicare
Medicare UPINF25527
Other2457634MA · Aetna
Medicare PINME0099ME
Medicare PINA29253MA
Other01Y004640NH01NH · Anthem New Hampshire
Other403898MA · Tufts
Medicare PINRE7082NH

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Dietitian, Registered
155 BORTHWICK AVE
PORTSMOUTH, NH 03801
Internal Medicine
155 BORTHWICK AVE, SUITE 202W
PORTSMOUTH, NH 03801
Naturopath
155 BORTHWICK AVE, WEST #102
PORTSMOUTH, NH 03801
Naturopath
155 BORTHWICK AVE
PORTSMOUTH, NH 03801
Optometrist
155 BORTHWICK AVE, SUITE 200 EAST
PORTSMOUTH, NH 03801
Dermatology (Dermatopathology)
155 BORTHWICK AVE, SUITE 201 WEST
PORTSMOUTH, NH 03801
Optometrist
155 BORTHWICK AVE
PORTSMOUTH, NH 03801
Naturopath
155 BORTHWICK AVE, WEST SUITE 102
PORTSMOUTH, NH 03801

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Margaret Stewart's NPI number?

The NPI number for Margaret Stewart is 1649375072. It was assigned to this individual provider in the NPPES registry on September 13, 2006.

Where is Margaret Stewart located?

Margaret Stewart practices at 155 Borthwick Ave Suite 201 West, Portsmouth, NH 03801. The listed phone number is (603) 433-9575.

What is Margaret Stewart's specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

When was this NPI record last updated?

The NPPES record for Margaret Stewart was last updated on October 18, 2017. NPI Profile syncs with the weekly NPPES data releases published by CMS.