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SUMMIT INTERNAL MEDICINE LLC
NPI 1295874428
Specialist in Summit, NJ

Active since February 05, 2007CLIA 31D0901063 · Microscopy
33 OVERLOOK RD, SUITE L06, SUMMIT, NJ 07901(908) 522-0050(908) 522-6575 Get Directions Write a Review

NPPES record last updated: July 21, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Summit Internal Medicine Llc NPPES

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

SUMMIT INTERNAL MEDICINE LLC (NPI 1295874428) is a healthcare organization registered as a specialist in Summit, New Jersey and active in the NPI registry since February 2007. The organization holds a CLIA Microscopy certificate valid through May 14, 2027 and lists Lisa H Toffey, Owner, as its authorized official.

NPPES Registry Identity

NPI1295874428
Entity TypeOrganization
Primary Taxonomy174400000X
Legal Business NameSUMMIT INTERNAL MEDICINE LLC
Location Address33 OVERLOOK RD, SUITE L06Summit, NJ 07901-3570
Mailing Address33 Overlook Rd, Suite L06Summit, NJ 07901-3570 · (908) 522-0050 · Fax (908) 522-6575
Phone(908) 522-0050
Fax(908) 522-6575
Organization SubpartNo
Authorized OfficialLisa H ToffeyOwner · (908) 522-0050
Enumeration DateFebruary 5, 2007
Last NPPES UpdateJuly 21, 2022
✔ NPI 1295874428 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers
Taxonomy Code174400000X
Definition
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
33 OVERLOOK RD, Summit, NJ 07901
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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 and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Summit Internal Medicine Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

3

Medicare enrollment records show 3 clinicians reassign Medicare billing to Summit Internal Medicine LLC, which bills Medicare for the services they deliver. Of these, 3 practice at this address. They are listed nearest first.

Clinicians, nearest first (3)

Gomathy Subramanian, MD
Internal Medicine
NPI 1922066182
33 OVERLOOK RD SUITE L06
Summit, NJ 07901
(908) 522-0050
✔ PECOS✔ Accepts MedicareSame address
Lisa Toffey, MD
Internal Medicine
NPI 1699763920
33 OVERLOOK RD SUITE L06
Summit, NJ 07901
(908) 522-0050
✔ PECOS✔ Accepts MedicareSame address
Brittany Toffey
Internal Medicine
NPI 1992332431
33 OVERLOOK RD STE L06
Summit, NJ 07901
(908) 522-0050
✔ PECOS✔ Accepts MedicareSame 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 for Provider-Performed Microscopy Procedures (PPMP) 31D0901063

Summit Internal Medcine · Summit, NJ
Active · expires May 14, 2027
CLIA Number31D0901063
Laboratory TypePhysician Office
Certificate Effective DateMay 15, 2025
Certificate Expiration DateMay 14, 2027
Laboratory DirectorLisa G. Toffey MD
Laboratory Phone(908) 522-5335
Laboratory LocationSummit Internal Medcine33 Overlook Rd Suite L06, Summit, NJ 07901
CLIA data matches this NPI record on: Address
This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform 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 Summit Internal Medicine LLC's NPI number?

The NPI number for Summit Internal Medicine LLC is 1295874428. It was assigned to this organization in the NPPES registry on February 5, 2007.

Where is Summit Internal Medicine LLC located?

Summit Internal Medicine LLC is located at 33 Overlook Rd Suite L06, Summit, NJ 07901. The listed phone number is (908) 522-0050.

What is Summit Internal Medicine LLC's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Is Summit Internal Medicine LLC enrolled in Medicare?

Yes. Summit Internal Medicine LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Summit Internal Medicine LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians, all in Internal Medicine, reassign their Medicare billing to Summit Internal Medicine 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. Of these, 3 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Summit Internal Medicine LLC hold a CLIA laboratory certificate?

Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 31D0901063) is associated with this NPI, valid through May 14, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Summit Internal Medicine LLC was last updated on July 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.