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EMERSON PATHOLOGY ASSOCIATES, INC.
NPI 1881604486
Pathology - Anatomic Pathology & Clinical Pathology in Concord, MA

Active since August 08, 2006
133 OLD RD TO NINE ACRE CORNER, EMERSON HOSPITAL, DEPT. OF PATHOLOGY, CONCORD, MA 01742(978) 287-3355 Get Directions Write a Review

NPPES record last updated: October 7, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Emerson Pathology Associates, Inc. NPPES

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

EMERSON PATHOLOGY ASSOCIATES, INC. (NPI 1881604486) is a healthcare organization registered as an anatomic pathology & clinical pathology in Concord, Massachusetts and active in the NPI registry since August 2006. The organization lists Richard Geller, Partner, as its authorized official.

NPPES Registry Identity

NPI1881604486
Entity TypeOrganization
Primary Taxonomy207ZP0102X
Legal Business NameEMERSON PATHOLOGY ASSOCIATES, INC.
Location Address133 OLD RD TO NINE ACRE CORNER, EMERSON HOSPITAL, DEPT. OF PATHOLOGYConcord, MA 01742
Mailing Address1342 Belmont St Ste 205Brockton, MA 02301-4438 · (508) 580-1670
Phone(978) 287-3355
Organization SubpartNo
Authorized OfficialRichard GellerPartner · (978) 287-3355
Enumeration DateAugust 8, 2006
Last NPPES UpdateOctober 7, 2020
NPPES CertifiedOctober 7, 2020
✔ NPI 1881604486 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZP0102X
Definition
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.
133 OLD RD TO NINE ACRE CORNER, Concord, MA 01742
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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

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)

Emerson Pathology Associates, Inc. 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 IDO20040802000439Non-DME Part B · Clinic/Group PracticeDue dateOctober 31, 2026
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

5

Medicare enrollment records show 5 clinicians reassign Medicare billing to Emerson Pathology Associates, Inc., which bills Medicare for the services they deliver. Of these, 1 practice at this address and 3 within 10 miles. They are listed nearest first.

Clinicians, nearest first (5)

Paul Lysiak
Pathology
NPI 1588747323
133 OLD RD TO NINE ACRE CORNER EMERSON HOSPITAL, DEPT. OF PATHOLOGY
Concord, MA 01742
(978) 287-3355
✔ PECOS✔ Accepts MedicareSame address
Richard Geller, M.D.
Pathology
NPI 1588605133
133 OLD ROAD TO 9 ACRE COR EMERSON HOSPITAL, DEPT. OF PATHOLOGY
Concord, MA 01742
(978) 287-3355
✔ PECOS✔ Accepts Medicare1.6 mi
David Sherman, M.D.
Pathology
NPI 1144284993
133 OLD ROAD TO 9 ACRE COR EMERSON HOSPITAL, DEPT. OF PATHOLOGY
Concord, MA 01742
(978) 287-3355
✔ PECOS✔ Accepts Medicare1.6 mi
Robert Najarian, M.D.
Pathology
NPI 1033367966
115 LINCOLN ST
Framingham, MA 01702
(508) 580-1670
✔ PECOS✔ Accepts Medicare12 mi
Hilde Vardeh, M.D.
Pathology
NPI 1578937587
300 BROOKLINE AVE DEPARTMENT OF PATHOLOGY
Boston, MA 02215
(617) 667-4344
✔ PECOS✔ Accepts Medicare16 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 Emerson Pathology Associates, Inc.'s NPI number?

The NPI number for Emerson Pathology Associates, Inc. is 1881604486. It was assigned to this organization in the NPPES registry on August 8, 2006.

Where is Emerson Pathology Associates, Inc. located?

Emerson Pathology Associates, Inc. is located at 133 Old Rd To Nine Acre Corner Emerson Hospital, Dept. Of Pathology, Concord, MA 01742. The listed phone number is (978) 287-3355.

What is Emerson Pathology Associates, Inc.'s specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

Is Emerson Pathology Associates, Inc. enrolled in Medicare?

Yes. Emerson Pathology Associates, Inc. is registered in the Medicare PECOS enrollment system.

When is Emerson Pathology Associates, Inc.'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 Emerson Pathology Associates, Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 5 clinicians, all in Pathology, reassign their Medicare billing to Emerson Pathology Associates, Inc.. 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 and 3 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Emerson Pathology Associates, Inc. was last updated on October 7, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.