Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Fw Danby, MD & Lj Margesson, MD, PA

Dermatology Physician in Manchester, NH · enumerated 2007 · authorized official F. Danby, President.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1912115676

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Registry record

Entity type Organization (Type 2)

Legal business name Fw Danby, MD & Lj Margesson, MD, PA

Practice address 721 Chestnut St, Manchester, NH, 03104

Phone (603) 668-0858

Fax (603) 647-0017

Enumeration date May 18, 2007

Last updated in NPPES Jul 16, 2007

Taxonomy & classification

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name F. Danby

Title President

Phone (603) 668-0858

Other identifiers

Identifier	Type	State	Issuer
30010513	Medicaid	NH	-
30010512	Medicaid	NH	-
80004440	Medicaid	NH	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Fw Danby, MD & Lj Margesson, MD, PA?

Fw Danby, MD & Lj Margesson, MD, PA is registered in NPPES as a Dermatology Physician (its primary provider taxonomy).

Providers at this address

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Patricia Magaw Women's Health Nurse Practitioner · Manchester, NH NPI 1427003086

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-16.