PORTLAND GASTROENTEROLOGY ASSOCIATES P.A.
NPI 1508087289
Internal Medicine - Gastroenterology in Portland, ME
About Portland Gastroenterology Associates P.a. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PORTLAND GASTROENTEROLOGY ASSOCIATES P.A. (NPI 1508087289) is a healthcare organization registered as a gastroenterology in Portland, Maine and active in the NPI registry since May 2007. The organization lists Melissa Gousse, Practice Administrator, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Portland Gastroenterology Associates P.a. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by February 28, 2027
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
34Medicare enrollment records show 34 clinicians reassign Medicare billing to Portland Gastroenterology Associates P.A., which bills Medicare for the services they deliver. Of these, 25 practice at this address and 31 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 2
Nearest to this location (20)
See all 34Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Portland Gastroenterology Associates P.A.'s NPI number?
The NPI number for Portland Gastroenterology Associates P.A. is 1508087289. It was assigned to this organization in the NPPES registry on May 1, 2007.
Where is Portland Gastroenterology Associates P.A. located?
Portland Gastroenterology Associates P.A. is located at 161 Marginal Way, Portland, ME 04101. The listed phone number is (207) 773-7964.
What is Portland Gastroenterology Associates P.A.'s specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Portland Gastroenterology Associates P.A. enrolled in Medicare?
Yes. Portland Gastroenterology Associates P.A. is registered in the Medicare PECOS enrollment system.
When is Portland Gastroenterology Associates P.A.'s Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Maine, Clinic/Group Practice) is due for revalidation by February 28, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through Portland Gastroenterology Associates P.A.?
According to the CMS Revalidation Reassignment List (October 2026 release), 34 clinicians in 2 Medicare specialties reassign their Medicare billing to Portland Gastroenterology Associates P.A.. 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 (20) and Nurse Practitioner (14). Of these, 25 practice at this address and 31 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Portland Gastroenterology Associates P.A. accept?
Health plans from Ambetter from NH Healthy Families and Taro Health list Portland Gastroenterology Associates P.A. 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 Portland Gastroenterology Associates P.A. was last updated on February 3, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.
# Portland Gastroenterology Associates P.a. · NPI 1508087289
Gastroenterology organization in Portland, Maine. Organization record, active in the CMS NPPES registry since May 1, 2007.
## Identity
- **NPI:** 1508087289 (Entity type: Organization)
- **Enumerated:** May 1, 2007
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **Organization subpart:** No
- **Authorized official:** Melissa Gousse, PRACTICE ADMINISTRATOR
## Practice location
- **Address:** 161 MARGINAL WAY, Portland, ME 04101
- **Phone:** (207) 773-7964 · **Fax:** (207) 773-9073
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** February 28, 2027 (Non-DME Part B, Maine, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 34 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Gastroenterology (20), Nurse Practitioner (14); 25 practice at this address and 31 within 10 miles; [full list](https://npiprofile.com/npi/1508087289/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 3, 2023
- **Other identifiers:** Medicaid 111280000 (ME)
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Source: [NPI Profile](https://npiprofile.com/npi/1508087289) · Data from the CMS NPPES public registry.