NPPES file of Aug 9, 2026

Jason Grunes PLLC in Woburn, MA

This organization bills under NPI 1285083972, an organization record issued on Jun 3, 2016 with the primary taxonomy Internal Medicine Physician. Each clinician who works there has their own NPI and license.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

Organization recordNPPES, Aug 2026
1285083972
Legal name
Jason Grunes PLLC
Entity
Type 2 · organization
Primary taxonomy
Internal Medicine Physician 207R00000X
Practice location
2 REHABILITATION WAY, Woburn, MA 01801
Phone
791-935-5050
Enumerated
Jun 3, 2016
Record updated
Jun 13, 2016
Authorized official
Physician (title as filed)
Public record from the NPPES NPI Registry (open it on CMS). An NPI identifies who bills; it is not a facility license.

4 clinicians CMS lists with Jason Grunes in Woburn

  1. Jason Grunes, MDInternal Medicine Physician1619131539
  2. Rita Ho, APRNFamily Nurse Practitioner1629805262
  3. Sarietha Mathieu, NPGerontology Nurse Practitioner1033727318
  4. Alla Tibbetts, MD, DOInternal Medicine Physician1386807329

Source: CMS Doctors and Clinicians group affiliations, matched by practice name and city.

Checking an organization

  1. Confirm the business with the Massachusetts secretary of state.
  2. Check the HHS-OIG exclusion list for the organization.
  3. Verify each clinician on their own record and the state license search.

Common questions

Is an organization NPI a license?

No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.

Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.