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RIVERSIDE MEDICAL GROUP PC
NPI 1508821646
Internal Medicine in Lowell, MA

Active since April 20, 2006CLIA Certified · 2 labs
275 VARNUM AVE, STE 201, LOWELL, MA 01854(978) 452-9700(978) 441-6075 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Sep 11, 2025, Aug 22, 2020 (2 updates tracked since 2020).

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

NPI1508821646
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameRIVERSIDE MEDICAL GROUP PC
Location Address275 VARNUM AVE, STE 201Lowell, MA 01854-2141
Mailing Address275 Varnum Ave, Ste 201Lowell, MA 01854-2141 · (978) 452-9700 · Fax (978) 441-6075
Phone(978) 452-9700
Fax(978) 441-6075
Organization SubpartNo
Authorized OfficialLincoln N PinskyPresident · (978) 452-9700
Enumeration DateApril 20, 2006
Last NPPES UpdateSeptember 11, 20252 updates tracked since enumeration
✔ NPI 1508821646 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X
275 VARNUM AVE, Lowell, MA 01854
Open in Google Maps ↗

Other Identifiers 1

Medicaid9782796MA

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

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, MA
Active · expires Aug 31, 2026
CLIA Number22D0715516
Laboratory TypePhysician Office
Certificate Effective DateSeptember 1, 2024
Certificate Expiration DateAugust 31, 2026
Laboratory DirectorLincoln N. Pinsky
Laboratory Phone(978) 452-9700
Laboratory LocationRiverside Medical Group PC275 Varnum Avenue Suite 201 & 101, Lowell, MA 01854
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 22D2304408

Riverside Medical Group · Lowell, MA
Active · expires May 12, 2028
CLIA Number22D2304408
Laboratory TypePhysician Office
Certificate Effective DateMay 13, 2026
Certificate Expiration DateMay 12, 2028
Laboratory DirectorDr. Tushar Patel
Laboratory Phone(978) 452-9700
Laboratory LocationRiverside Medical Group33 Bartlett St Ste 504, Lowell, MA 01852
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. NEELAM SIHAG MD
Psychiatry & Neurology (Psychiatry)
275 VARNUM AVE, STE 106
LOWELL, MA 01854
Middlesex County (978) 452-5485
MR. HENRY R P LYLE MD
Internal Medicine (Cardiovascular Disease)
275 VARNUM AVE
LOWELL, MA 01854
Middlesex County (978) 452-9700
DRAGAN S PETAKOV MD
Internal Medicine
275 VARNUM AVE, STE 201
LOWELL, MA 01854
Middlesex County (978) 452-9700
DR. STUART JAY ARBESFELD M.D.
Specialist
275 VARNUM AVE, SUITE 107
LOWELL, MA 01854
Middlesex County (978) 452-3888
REKHA BAINS M.D., PC
Pediatrics
275 VARNUM AVE, SUITE 108
LOWELL, MA 01854
Middlesex County (978) 452-1666
CARLOS A. MADRID PC.
Obstetrics & Gynecology
275 VARNUM AVE, SUITE 208
LOWELL, MA 01854
Middlesex County (978) 458-4333
GOLDA LIZA SOBOL PA-C
Physician Assistant
275 VARNUM AVE, SUITE 201
LOWELL, MA 01854
Middlesex County (978) 452-9700
NORTHEAST MEDICAL GROUP, INC.
Internal Medicine
275 VARNUM AVE, SUITE # 108
LOWELL, MA 01854
Middlesex County (978) 710-4242

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 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.

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.

What insurance does Riverside Medical Group PC accept?

Health plans from Anthem Blue Cross and Blue Shield list Riverside Medical Group 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 Medical Group PC was last updated on September 11, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.