RIVERSIDE MEDICAL GROUP PC
NPI 1508821646
Internal Medicine in Lowell, MA
About Riverside Medical Group Pc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RIVERSIDE MEDICAL GROUP PC (NPI 1508821646) is a healthcare organization registered as an internal medicine in Lowell, Massachusetts and active in the NPI registry since April 2006. The organization holds 2 active CLIA laboratory certificates and lists Lincoln N Pinsky, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Riverside Medical Group Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
14Medicare enrollment records show 14 clinicians reassign Medicare billing to Riverside Medical Group PC, which bills Medicare for the services they deliver. Of these, 8 practice at this address and 13 within 10 miles. They are listed nearest first.
Clinicians by Medicare Specialty 2
Clinicians, nearest first (14)
Lowell, MA 01854
Lowell, MA 01854
Lowell, MA 01854
Lowell, MA 01854
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 2
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 Waiver 22D0715516
Riverside Medical Group PC · Lowell, MACertificate of Waiver 22D2304408
Riverside Medical Group · Lowell, MAFrequently 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 Riverside Medical Group PC's NPI number?
The NPI number for Riverside Medical Group PC is 1508821646. It was assigned to this organization in the NPPES registry on April 20, 2006.
Where is Riverside Medical Group PC located?
Riverside Medical Group PC is located at 275 Varnum Ave Ste 201, Lowell, MA 01854. The listed phone number is (978) 452-9700.
What is Riverside Medical Group PC's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Riverside Medical Group PC enrolled in Medicare?
Yes. Riverside Medical Group PC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Riverside Medical Group PC?
According to the CMS Revalidation Reassignment List (October 2026 release), 14 clinicians in 2 Medicare specialties reassign their Medicare billing to Riverside Medical Group PC. 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 Internal Medicine (8) and Nurse Practitioner (6). Of these, 8 practice at this address and 13 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Riverside Medical Group PC hold CLIA laboratory certificates?
Yes. 2 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.
When was this NPI record last updated?
The NPPES record for Riverside Medical Group PC was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Riverside Medical Group Pc · NPI 1508821646
Internal Medicine organization in Lowell, Massachusetts. Organization record, active in the CMS NPPES registry since April 20, 2006.
## Identity
- **NPI:** 1508821646 (Entity type: Organization)
- **Enumerated:** April 20, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Organization subpart:** No
- **Authorized official:** Lincoln Pinsky, PRESIDENT
## Practice location
- **Address:** 275 VARNUM AVE, STE 201, Lowell, MA 01854-2141
- **Phone:** (978) 452-9700 · **Fax:** (978) 441-6075
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 14 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Internal Medicine (8), Nurse Practitioner (6); 8 practice at this address and 13 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 11, 2025
- **Other identifiers:** Medicaid 9782796 (MA)
- **CLIA laboratory certificates:** 2 on file
---
Source: [NPI Profile](https://npiprofile.com/npi/1508821646) · Data from the CMS NPPES public registry.