RIVERSIDE SURGICAL ASSOCIATES, PC
NPI 1538405378
Surgery in Lowell, MA

Active since December 26, 2012
275 VARNUM AVE STE 203, LOWELL, MA 01854(978) 458-4300(978) 458-4311 Get Directions Write a Review

NPPES record last updated: November 30, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Riverside Surgical Associates, Pc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

RIVERSIDE SURGICAL ASSOCIATES, PC (NPI 1538405378) is a healthcare organization registered as a surgery in Lowell, Massachusetts and active in the NPI registry since December 2012. The organization lists Wassim Mazraany, President, as its authorized official.

NPPES Registry Identity

NPI1538405378
Entity TypeOrganization
Primary Taxonomy208600000X
Legal Business NameRIVERSIDE SURGICAL ASSOCIATES, PC
Location Address275 VARNUM AVE STE 203Lowell, MA 01854-2109
Mailing Address10 Little Brook RdWest Wareham, MA 02576-1222 · (800) 841-5200 · Fax (508) 273-1241
Fax(978) 458-4311
Organization SubpartNo
Authorized OfficialWassim MazraanyPresident · (978) 458-4300
Enumeration DateDecember 26, 2012
Last NPPES UpdateNovember 30, 2023
NPPES CertifiedNovember 30, 2023
✔ NPI 1538405378 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in MA · 235823
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
275 VARNUM AVE STE 203, Lowell, MA 01854

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

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)

Riverside Surgical Associates, Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

8

Medicare enrollment records show 8 clinicians reassign Medicare billing to Riverside Surgical Associates, PC, which bills Medicare for the services they deliver. Of these, 5 practice at this address. They are listed nearest first.

Clinicians, nearest first (8)

General Surgery
NPI 1497163661
275 VARNUM AVE STE 203
Lowell, MA 01854
(978) 458-4300
✔ PECOS✔ Accepts MedicareSame address
General Surgery
NPI 1700952314
275 VARNUM AVE STE 203
Lowell, MA 01854
(978) 458-4300
✔ PECOS✔ Accepts MedicareSame address
General Surgery
NPI 1558654707
275 VARNUM AVE STE 203
Lowell, MA 01854
(978) 458-4300
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1821402108
275 VARNUM AVE STE 203
Lowell, MA 01854
(978) 458-4300
✔ PECOS✔ Accepts MedicareSame address
General Surgery
NPI 1801023601
275 VARNUM AVE STE 203
Lowell, MA 01854
(978) 458-4300
✔ PECOS✔ Accepts MedicareSame address
General Surgery
NPI 1699157941
736 CAMBRIDGE ST
Brighton, MA 02135
(617) 789-2990
✔ PECOS✔ Accepts Medicare23 mi
General Surgery
NPI 1215431671
600 N WOLFE ST
Baltimore, MD 21287
(410) 955-9441
✔ PECOS✔ Accepts Medicare359 mi
General Surgery
NPI 1225561814
400 W MINERAL KING AVE
Visalia, CA 93291
(559) 624-2000
✔ PECOS✔ Accepts Medicare2,565 mi

Source: 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 Riverside Surgical Associates, PC's NPI number?

The NPI number for Riverside Surgical Associates, PC is 1538405378. It was assigned to this organization in the NPPES registry on December 26, 2012.

Where is Riverside Surgical Associates, PC located?

Riverside Surgical Associates, PC is located at 275 Varnum Ave Ste 203, Lowell, MA 01854. The listed phone number is (978) 458-4300.

What is Riverside Surgical Associates, PC's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Riverside Surgical Associates, PC enrolled in Medicare?

Yes. Riverside Surgical Associates, PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Riverside Surgical Associates, PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 8 clinicians in 2 Medicare specialties reassign their Medicare billing to Riverside Surgical Associates, 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 General Surgery (7) and Nurse Practitioner (1). Of these, 5 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Riverside Surgical Associates, PC accept?

Health plans from Anthem Blue Cross and Blue Shield list Riverside Surgical Associates, PC 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 Riverside Surgical Associates, PC was last updated on November 30, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.