LANDMARK MEDICAL OF MASSACHUSETTS PLLC
NPI 1841739489
General Practice in Westborough, MA

Q: What is Landmark Medical Of Massachusetts PLLC's specialty?

The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.

Active since February 15, 2017

1400 COMPUTER DR, WESTBOROUGH, MA 01581(657) 400-5180(844) 698-7227 Get Directions Write a Review

NPPES record last updated: January 30, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 10, 2022, Feb 15, 2017 (2 updates tracked since 2017).

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About Landmark Medical Of Massachusetts Pllc NPPES

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

LANDMARK MEDICAL OF MASSACHUSETTS PLLC (NPI 1841739489) is a healthcare organization registered as a general practice in Westborough, Massachusetts and active in the NPI registry since February 2017. The organization lists Christopher Dennis, Chief Medical Officer, as its authorized official.

NPPES Registry Identity

NPI1841739489

Entity TypeOrganization

Primary Taxonomy208D00000X

Legal Business NameLANDMARK MEDICAL OF MASSACHUSETTS PLLC

Location Address1400 COMPUTER DRWestborough, MA 01581-1760

Mailing Address7755 Center Ave, Ste 630Huntington Beach, CA 92647-3007

Phone(657) 400-5180

Fax(844) 698-7227

Organization SubpartNo

Authorized OfficialChristopher DennisChief Medical Officer · (657) 237-2450

Enumeration DateFebruary 15, 2017

Last NPPES UpdateJanuary 30, 20242 updates tracked since enumeration

NPPES CertifiedJanuary 30, 2024

✔ NPI 1841739489 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyGeneral PracticeAllopathic & Osteopathic Physicians

Taxonomy Code208D00000X

Definition

A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. Source: National Uniform Claim Committee

1400 COMPUTER DR, Westborough, MA 01581

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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

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Landmark Medical Of Massachusetts Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Landmark Medical Of Massachusetts PLLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Elizabeth Nelson-Frazier, NP

Nurse Practitioner

NPI 1952706210

50 ALDREN ROAD
Plymouth, MA 02061

(508) 830-0000

✔ PECOS51 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 Landmark Medical Of Massachusetts PLLC's NPI number?

The NPI number for Landmark Medical Of Massachusetts PLLC is 1841739489. It was assigned to this organization in the NPPES registry on February 15, 2017.

Where is Landmark Medical Of Massachusetts PLLC located?

Landmark Medical Of Massachusetts PLLC is located at 1400 Computer Dr, Westborough, MA 01581. The listed phone number is (657) 400-5180.

What is Landmark Medical Of Massachusetts PLLC's specialty?

The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.

Is Landmark Medical Of Massachusetts PLLC enrolled in Medicare?

Yes. Landmark Medical Of Massachusetts PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Landmark Medical Of Massachusetts PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Nurse Practitioner) reassigns their Medicare billing to Landmark Medical Of Massachusetts PLLC. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Landmark Medical Of Massachusetts PLLC was last updated on January 30, 2024. 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.