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LGH MERRIMACK VALLEY CARDIOLOGY ASSOCIATES, LLC
NPI 1952695884
Internal Medicine - Cardiovascular Disease in North Chelmsford, MA

Active since June 08, 2011
14 RESEARCH PL, NORTH CHELMSFORD, MA 01863(978) 256-6607 Get Directions Write a Review

NPPES record last updated: February 11, 2013. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Lgh Merrimack Valley Cardiology Associates, Llc NPPES

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

LGH MERRIMACK VALLEY CARDIOLOGY ASSOCIATES, LLC (NPI 1952695884) is a healthcare organization registered as a cardiovascular disease in North Chelmsford, Massachusetts and active in the NPI registry since June 2011. The organization lists Susan Green, Cfo, as its authorized official.

NPPES Registry Identity

NPI1952695884
Entity TypeOrganization
Primary Taxonomy207RC0000X
Legal Business NameLGH MERRIMACK VALLEY CARDIOLOGY ASSOCIATES, LLC
Location Address14 RESEARCH PLNorth Chelmsford, MA 01863-2412
Mailing Address14 Research PlNorth Chelmsford, MA 01863-2412 · (978) 256-6607
Phone(978) 256-6607
Organization SubpartYesParent: Circle Health Physicians, Inc
Authorized OfficialSusan GreenCfo · (978) 937-6201
Enumeration DateJune 8, 2011
Last NPPES UpdateFebruary 11, 2013
✔ NPI 1952695884 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
14 RESEARCH PL, North Chelmsford, MA 01863
Open in Google Maps ↗

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, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Lgh Merrimack Valley Cardiology Associates, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by October 31, 2026

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateMassachusettsEnrollment IDO20111005000134Non-DME Part B · Clinic/Group PracticeDue dateOctober 31, 2026
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

23

Medicare enrollment records show 23 clinicians reassign Medicare billing to Lgh Merrimack Valley Cardiology Associates, LLC, which bills Medicare for the services they deliver. Of these, 19 practice at this address and 20 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 5

Cardiovascular Disease (Cardiology)10
Nurse Practitioner7
Interventional Cardiology3
Internal Medicine2
Cardiac Electrophysiology1

Nearest to this location (20)

See all 23
Walter Jo, MD
Cardiovascular Disease (Cardiology)
NPI 1043250004
14 RESEARCH PL
N Chelmsford, MA 01863
(978) 256-6607
✔ PECOS✔ Accepts MedicareSame address
Omar Ali, MD
Interventional Cardiology
NPI 1881634848
14 RESEARCH PL
N Chelmsford, MA 01863
(978) 256-6607
✔ PECOS✔ Accepts MedicareSame address
Artem Astsaturov, M.D.
Cardiovascular Disease (Cardiology)
NPI 1588058036
14 RESEARCH PL FL 3D
North Chelmsford, MA 01863
(978) 256-6607
✔ PECOS✔ Accepts MedicareSame address
Rylee Coutu, FNP-BC
Nurse Practitioner
NPI 1912646118
14 RESEARCH PL
North Chelmsford, MA 01863
(978) 256-6607
✔ PECOS✔ Accepts MedicareSame address
Brian Cullingford, M.D.
Cardiovascular Disease (Cardiology)
NPI 1033378088
14 RESEARCH PL
N Chelmsford, MA 01863
(978) 256-6607
✔ PECOS✔ Accepts MedicareSame address
Bryan Dolan, D.O.
Cardiovascular Disease (Cardiology)
NPI 1801259296
14 RESEARCH PL
North Chelmsford, MA 01863
(978) 256-6607
✔ PECOS✔ Accepts MedicareSame address
Eric Ewald, MD
Cardiovascular Disease (Cardiology)
NPI 1639126311
14 RESEARCH PL
N Chelmsford, MA 01863
(978) 256-6607
✔ PECOS✔ Accepts MedicareSame address
Christopher Hong, M.D.
Cardiovascular Disease (Cardiology)
NPI 1730234626
14 RESEARCH PL
North Chelmsford, MA 01863
(978) 256-6607
✔ PECOS✔ Accepts MedicareSame address
Miret Ibrahim, MD
Cardiovascular Disease (Cardiology)
NPI 1467637884
14 RESEARCH PL
N Chelmsford, MA 01863
(978) 256-6607
✔ PECOS✔ Accepts MedicareSame address
Heather Lacharite, A-GNP-C
Nurse Practitioner
NPI 1750016028
14 RESEARCH PL STE 3
North Chelmsford, MA 01863
(978) 256-6607
✔ PECOS✔ Accepts MedicareSame address
Kirk Macnaught, MD
Interventional Cardiology
NPI 1043267636
14 RESEARCH PL
N Chelmsford, MA 01863
(978) 256-6607
✔ PECOS✔ Accepts MedicareSame address
Lindsay Paula, NP
Nurse Practitioner
NPI 1710359898
14 RESEARCH PL FL 3
N Chelmsford, MA 01863
(978) 256-6607
✔ PECOS✔ Accepts MedicareSame address
Harsh Sanchorawala, MD
Cardiovascular Disease (Cardiology)
NPI 1497783294
14 RESEARCH PL
N Chelmsford, MA 01863
(978) 256-6607
✔ PECOS✔ Accepts MedicareSame address
Benjamin Smith, MD
Cardiac Electrophysiology
NPI 1922159326
14 RESEARCH PL
N Chelmsford, MA 01863
(978) 256-6607
✔ PECOS✔ Accepts MedicareSame address
Nancy Sydow, N.P.
Nurse Practitioner
NPI 1912156027
14 RESEARCH PL
N Chelmsford, MA 01863
(978) 256-6607
✔ PECOS✔ Accepts MedicareSame address
Arash Tabaee, M.D.
Cardiovascular Disease (Cardiology)
NPI 1962499608
14 RESEARCH PL
N Chelmsford, MA 01863
(978) 256-6607
✔ PECOS✔ Accepts MedicareSame address
James Waters, MD
Interventional Cardiology
NPI 1821038878
14 RESEARCH PL
N Chelmsford, MA 01863
(978) 256-6607
✔ PECOS✔ Accepts MedicareSame address
Cecillia Wong, M.D.
Cardiovascular Disease (Cardiology)
NPI 1225560485
14 RESEARCH PL STE 3
North Chelmsford, MA 01863
(978) 571-5154
✔ PECOS✔ Accepts MedicareSame address
Timothy Wymer, M.D.
Internal Medicine
NPI 1376937268
14 RESEARCH PL STE 3
North Chelmsford, MA 01863
(660) 797-8256
✔ PECOS✔ Accepts MedicareSame address
Kerry Keating, CNP
Nurse Practitioner
NPI 1215419247
295 VARNUM AVE
Lowell, MA 01854
(978) 937-6000
✔ PECOS✔ Accepts Medicare2.0 mi
See all 23 clinicians

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 Lgh Merrimack Valley Cardiology Associates, LLC's NPI number?

The NPI number for Lgh Merrimack Valley Cardiology Associates, LLC is 1952695884. It was assigned to this organization in the NPPES registry on June 8, 2011.

Where is Lgh Merrimack Valley Cardiology Associates, LLC located?

Lgh Merrimack Valley Cardiology Associates, LLC is located at 14 Research Pl, North Chelmsford, MA 01863. The listed phone number is (978) 256-6607.

What is Lgh Merrimack Valley Cardiology Associates, LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Lgh Merrimack Valley Cardiology Associates, LLC enrolled in Medicare?

Yes. Lgh Merrimack Valley Cardiology Associates, LLC is registered in the Medicare PECOS enrollment system.

When is Lgh Merrimack Valley Cardiology Associates, LLC's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Massachusetts, Clinic/Group Practice) is due for revalidation by October 31, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Lgh Merrimack Valley Cardiology Associates, LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 23 clinicians in 5 Medicare specialties reassign their Medicare billing to Lgh Merrimack Valley Cardiology Associates, LLC. 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 Cardiovascular Disease (Cardiology) (10), Nurse Practitioner (7) and Interventional Cardiology (3). Of these, 19 practice at this address and 20 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Lgh Merrimack Valley Cardiology Associates, LLC accept?

Health plans from Anthem Blue Cross and Blue Shield list Lgh Merrimack Valley Cardiology Associates, LLC 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 Lgh Merrimack Valley Cardiology Associates, LLC was last updated on February 11, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.