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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

MERRIMACK VALLEY INTERNAL MEDICINE LTC LLC
NPI 1134054547
Internal Medicine in Bedford, MA

Active since June 16, 2026
22 WEBBER AVE, BEDFORD, MA 01730(978) 430-2975 Get Directions Write a Review

NPPES record last updated: July 23, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Merrimack Valley Internal Medicine Ltc Llc NPPES

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

MERRIMACK VALLEY INTERNAL MEDICINE LTC LLC (NPI 1134054547) is a healthcare organization registered as an internal medicine in Bedford, Massachusetts and active in the NPI registry since June 2026. The organization lists Michael G Bertos, Owner, as its authorized official.

NPPES Registry Identity

NPI1134054547
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameMERRIMACK VALLEY INTERNAL MEDICINE LTC LLC
Location Address22 WEBBER AVEBedford, MA 01730-2213
Mailing Address22 Webber AveBedford, MA 01730-2213
Phone(978) 430-2975
Organization SubpartNo
Authorized OfficialMichael G BertosOwner · (978) 430-2975
Enumeration DateJune 16, 2026
Last NPPES UpdateJuly 23, 2026
NPPES CertifiedJuly 23, 2026
✔ NPI 1134054547 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ 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.
22 WEBBER AVE, Bedford, MA 01730
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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

Other Providers at the Same Location NPPES

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

MERRIMACK VALLEY INTERNAL MEDICINE, LLC
Internal Medicine
22 WEBBER AVE
BEDFORD, MA 01730
Middlesex County (978) 430-2975

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 Merrimack Valley Internal Medicine Ltc LLC's NPI number?

The NPI number for Merrimack Valley Internal Medicine Ltc LLC is 1134054547. It was assigned to this organization in the NPPES registry on June 16, 2026.

Where is Merrimack Valley Internal Medicine Ltc LLC located?

Merrimack Valley Internal Medicine Ltc LLC is located at 22 Webber Ave, Bedford, MA 01730. The listed phone number is (978) 430-2975.

What is Merrimack Valley Internal Medicine Ltc LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Merrimack Valley Internal Medicine Ltc LLC was last updated on July 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 days 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.