GRANITE STATE GASTROINTESTINAL CONSULTANTS PLLC
NPI 1942214457
Internal Medicine - Gastroenterology in Londonderry, NH
About Granite State Gastrointestinal Consultants Pllc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GRANITE STATE GASTROINTESTINAL CONSULTANTS PLLC (NPI 1942214457) is a healthcare organization registered as a gastroenterology in Londonderry, New Hampshire and active in the NPI registry since July 2006. The organization holds a CLIA Certificate of Compliance certificate valid through December 11, 2027 and lists Leon Mclean, Physician Co Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Granite State Gastrointestinal Consultants Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
12Medicare enrollment records show 12 clinicians reassign Medicare billing to Granite State Gastrointestinal Consultants PLLC, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 6 within 10 miles. They are listed nearest first.
Clinicians by Medicare Specialty 4
Clinicians, nearest first (12)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Compliance 30D2335500
Granite State Gastrointestinal Consultants PLLC · Londonderry, NHFrequently 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 Granite State Gastrointestinal Consultants PLLC's NPI number?
The NPI number for Granite State Gastrointestinal Consultants PLLC is 1942214457. It was assigned to this organization in the NPPES registry on July 28, 2006.
Where is Granite State Gastrointestinal Consultants PLLC located?
Granite State Gastrointestinal Consultants PLLC is located at 50 Michels Way, Londonderry, NH 03053. The listed phone number is (603) 432-8802.
What is Granite State Gastrointestinal Consultants PLLC's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Granite State Gastrointestinal Consultants PLLC enrolled in Medicare?
Yes. Granite State Gastrointestinal Consultants PLLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Granite State Gastrointestinal Consultants PLLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 12 clinicians in 4 Medicare specialties reassign their Medicare billing to Granite State Gastrointestinal Consultants PLLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Gastroenterology (8), Pathology (2) and Internal Medicine (1). Of these, 1 practice at this address and 6 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Granite State Gastrointestinal Consultants PLLC hold a CLIA laboratory certificate?
Yes. A Certificate of Compliance (number 30D2335500) is associated with this NPI, valid through December 11, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
What insurance does Granite State Gastrointestinal Consultants PLLC accept?
Health plans from Ambetter from NH Healthy Families, Anthem Blue Cross and Blue Shield and WellSense Health Plan list Granite State Gastrointestinal Consultants PLLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Granite State Gastrointestinal Consultants PLLC was last updated on November 12, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Granite State Gastrointestinal Consultants Pllc · NPI 1942214457
Gastroenterology organization in Londonderry, New Hampshire. Organization record, active in the CMS NPPES registry since July 28, 2006.
## Identity
- **NPI:** 1942214457 (Entity type: Organization)
- **Enumerated:** July 28, 2006
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **Organization subpart:** No
- **Authorized official:** Leon Mclean, PHYSICIAN CO OWNER
## Practice location
- **Address:** 50 MICHELS WAY, Londonderry, NH 03053
- **Phone:** (603) 432-8802 · **Fax:** (603) 437-0118
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 12 clinicians in 4 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Gastroenterology (8), Pathology (2), Internal Medicine (1); 1 practice at this address and 6 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** November 12, 2024
- **Other identifiers:** Medicaid 30002464 (NH)
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1942214457) · Data from the CMS NPPES public registry.