MARLBOROUGH PRIMARY CARE PLLC
NPI 1285401646
Clinic/Center - Primary Care in Marlborough, MA

Active since December 06, 2023CLIA 22D2346461 · Waiver
757 BOSTON POST RD E STE B, MARLBOROUGH, MA 01752(423) 741-0506 Get Directions Write a Review

NPPES record last updated: June 4, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jun 4, 2025, Dec 6, 2023 (2 updates tracked since 2023).

About Marlborough Primary Care Pllc NPPES

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

MARLBOROUGH PRIMARY CARE PLLC (NPI 1285401646), doing business as Zenith Primary & Urgent Care, is a healthcare organization registered as a primary care in Marlborough, Massachusetts and active in the NPI registry since December 2023. The organization holds a CLIA Waiver certificate valid through June 29, 2028 and lists Badal Kalamkar, Manager, as its authorized official.

NPPES Registry Identity

NPI1285401646
Entity TypeOrganization
Primary Taxonomy261QP2300X
Legal Business NameMARLBOROUGH PRIMARY CARE PLLC
Location Address757 BOSTON POST RD E STE BMarlborough, MA 01752-3704
Mailing Address757 Boston Post Rd EMarlborough, MA 01752-3704 · (617) 500-7922
Organization SubpartNo
Authorized OfficialBadal KalamkarManager · (423) 741-0506
Enumeration DateDecember 6, 2023
Last NPPES UpdateJune 4, 20252 updates tracked since enumeration
NPPES CertifiedJune 4, 2025
✔ NPI 1285401646 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Primary CareAmbulatory Health Care Facilities
Taxonomy Code261QP2300X
757 BOSTON POST RD E STE B, Marlborough, MA 01752

Other Names 1

Doing Business AsZenith Primary & Urgent Care

Accepted 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)

Marlborough Primary Care 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 Marlborough Primary Care PLLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Hospitalist
NPI 1114214756
757 BOSTON POST RD E STE A
Marlborough, MA 01752
(617) 500-7933
✔ PECOSSame address

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 22D2346461

Marlborough Primary Care PLLC · Marlborough, MA
Active · expires Jun 29, 2028
CLIA Number22D2346461
Laboratory TypePhysician Office
Certificate Effective DateJune 30, 2026
Certificate Expiration DateJune 29, 2028
Laboratory DirectorDr. Badal Kalamkar
Laboratory Phone(617) 500-7922
Laboratory LocationMarlborough Primary Care PLLC757 Boston Post Road East, Suite B, Marlborough, MA 01752
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 Marlborough Primary Care PLLC's NPI number?

The NPI number for Marlborough Primary Care PLLC is 1285401646. It was assigned to this organization in the NPPES registry on December 6, 2023. The provider is doing business as Zenith Primary & Urgent Care.

Where is Marlborough Primary Care PLLC located?

Marlborough Primary Care PLLC is located at 757 Boston Post Rd E Ste B, Marlborough, MA 01752. The listed phone number is (423) 741-0506.

What is Marlborough Primary Care PLLC's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Primary Care, with taxonomy code 261QP2300X.

Is Marlborough Primary Care PLLC enrolled in Medicare?

Yes. Marlborough Primary Care PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Marlborough Primary Care PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Hospitalist) reassigns their Medicare billing to Marlborough Primary Care 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.

Does Marlborough Primary Care PLLC hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 22D2346461) is associated with this NPI, valid through June 29, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Marlborough Primary Care PLLC accept?

Health plans from Anthem Blue Cross and Blue Shield list Marlborough Primary Care PLLC 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 Marlborough Primary Care PLLC was last updated on June 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months 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.