1. Home
  2. Directory
  3. Massachusetts
  4. Concord
  5. Internal Medicine
  6. NPI Profile

CONCORD INTERNAL MEDICINE ASSOCIATES, P.C.
NPI 1255485058
Internal Medicine in Concord, MA

Active since January 22, 2007CLIA 22D0864902 · Waiver
2284 MAIN ST, CONCORD, MA 01742(978) 369-5575(978) 371-9189 Get Directions Write a Review

NPPES record last updated: November 5, 2010. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Concord Internal Medicine Associates, P.c. NPPES

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

CONCORD INTERNAL MEDICINE ASSOCIATES, P.C. (NPI 1255485058) is a healthcare organization registered as an internal medicine in Concord, Massachusetts and active in the NPI registry since January 2007. The organization holds a CLIA Waiver certificate valid through August 31, 2028 and lists Paul D D'ambrosio, Md, as its authorized official.

NPPES Registry Identity

NPI1255485058
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameCONCORD INTERNAL MEDICINE ASSOCIATES, P.C.
Location Address2284 MAIN STConcord, MA 01742-3829
Mailing Address2284 Main StConcord, MA 01742-3829 · (978) 369-5575 · Fax (978) 371-9189
Phone(978) 369-5575
Fax(978) 371-9189
Organization SubpartNo
Authorized OfficialPaul D D'ambrosioMd · (978) 369-5575
Enumeration DateJanuary 22, 2007
Last NPPES UpdateNovember 5, 2010
✔ NPI 1255485058 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.
2284 MAIN ST, Concord, MA 01742
Open in Google Maps ↗

Other Identifiers 4

Medicaid9778276MA
Medicare ID-Type UnspecifiedM15379MA
Other600583MA · Tufts Health Plan
Medicare PIN1255485058MA

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

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

Concord Internal Medicine Associates, P.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Concord Internal Medicine Associates, P.C., which bills Medicare for the services they deliver. Of these, 1 practice at this address. They are listed nearest first.

Clinicians, nearest first (2)

Paul Dambrosio, M.D.
Internal Medicine
NPI 1033194048
2284 MAIN ST
Concord, MA 01742
(978) 369-5575
✔ PECOS✔ Accepts MedicareSame address
Pavol Sajgalik, MD
Internal Medicine
NPI 1609446020
2100 DORCHESTER AVE
Dorchester, MA 02124
(617) 296-4000
✔ PECOS✔ Accepts Medicare22 mi

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

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 22D0864902

Concord Internal Medicine Associates PC · Concord, MA
Active · expires Aug 31, 2028
CLIA Number22D0864902
Laboratory TypePhysician Office
Certificate Effective DateSeptember 1, 2026
Certificate Expiration DateAugust 31, 2028
Laboratory DirectorPaul D. D Ambrosio, MD
Laboratory Phone(978) 369-5575
Laboratory LocationConcord Internal Medicine Associates PC2284 Main St, Concord, MA 01742
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Concord Internal Medicine Associates, P.C.'s NPI number?

The NPI number for Concord Internal Medicine Associates, P.C. is 1255485058. It was assigned to this organization in the NPPES registry on January 22, 2007.

Where is Concord Internal Medicine Associates, P.C. located?

Concord Internal Medicine Associates, P.C. is located at 2284 Main St, Concord, MA 01742. The listed phone number is (978) 369-5575.

What is Concord Internal Medicine Associates, P.C.'s specialty?

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

Is Concord Internal Medicine Associates, P.C. enrolled in Medicare?

Yes. Concord Internal Medicine Associates, P.C. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Concord Internal Medicine Associates, P.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Internal Medicine, reassign their Medicare billing to Concord Internal Medicine Associates, P.C.. 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. Of these, 1 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Concord Internal Medicine Associates, P.C. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 22D0864902) is associated with this NPI, valid through August 31, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Concord Internal Medicine Associates, P.C. accept?

Health plans from Anthem Blue Cross and Blue Shield list Concord Internal Medicine Associates, P.C. 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 Concord Internal Medicine Associates, P.C. was last updated on November 5, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.