Londonderry Gastroenterology Associates PA
NPI 1851318281 · Specialist · Londonderry, NH
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Londonderry Gastroenterology Associates PA is a Specialist organization in Londonderry, NH (NPI 1851318281).
Provider details
- NPI number
- 1851318281
- Entity type
- Organization
- Primary specialty
- SpecialistOther Service Providers
- Organization subpart
- No
- Authorized official
- Mark Detweiler, Physician(603) 818-4712
- License
- 6919 (NH)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-15
- Last updated
- 2015-10-19
Frequently asked questions
- What is Londonderry Gastroenterology Associates PA's NPI number?
- Londonderry Gastroenterology Associates PA's National Provider Identifier (NPI) is 1851318281, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Londonderry Gastroenterology Associates PA?
- Londonderry Gastroenterology Associates PA is classified in the NPPES registry as Specialist (Other Service Providers).
- Where is Londonderry Gastroenterology Associates PA located?
- Londonderry Gastroenterology Associates PA's practice location on file with NPPES is 1b Commons Dr, Londonderry, NH 03053-3441.
- What is Londonderry Gastroenterology Associates PA's phone number?
- The practice phone number listed in the NPPES registry for Londonderry Gastroenterology Associates PA is (603) 818-4712.
- Does Londonderry Gastroenterology Associates PA accept Medicare?
- Londonderry Gastroenterology Associates PA is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Londonderry Gastroenterology Associates PA?
- The authorized official listed on Londonderry Gastroenterology Associates PA's NPPES record is Mark Detweiler, Physician. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Londonderry Gastroenterology Associates PA's NPI active?
- Yes — Londonderry Gastroenterology Associates PA's NPI (1851318281) is active in the NPPES registry as of the last update on 2015-10-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.