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Walter Ryan, DO — NPI 1073503843, Nashua, NH | NPI Central

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Walter Ryan, DO

NPI 1073503843 · Allergy & Immunology (Internal Medicine) Physician · Nashua, NH

Provider details

NPI number: 1073503843
Entity type: Individual
Primary specialty: Allergy & Immunology (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
Credential: DO
Sex: Male
Sole proprietor: Yes
License: OS10177 (FL)

Specialties & taxonomies

Allergy & Immunology (Internal Medicine) PhysicianPrimary207RA0201XLicense 24463 (NH)
Allopathic & Osteopathic Physicians
Allergy & Immunology Physician207K00000XLicense OS10177 (FL)
Allopathic & Osteopathic Physicians

Practice location

2300 Southwood Dr

Nashua, NH 03063-1818

Phone: (603) 577-4000

Approximate (ZIP-level) locationGet directions

More NH providers

Mailing address

Po Box 810

Hanover, NH 03755-0810

Additional practice locations (1)

350 Nw 84th Ave
Suite 205
Plantation, FL 33324-1817
Phone: (954) 472-4848
Fax: (954) 472-8500

Registry dates

Enumerated: 2005-10-24
Last updated: 2023-08-04
Certified: 2023-07-19

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.