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JASON GRUNES PLLC
NPI 1285083972
Internal Medicine in Woburn, MA

Active since June 03, 2016
2 REHABILITATION WAY, WOBURN, MA 01801(791) 935-5050 Get Directions Write a Review

NPPES record last updated: June 13, 2016. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Jason Grunes Pllc NPPES

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

JASON GRUNES PLLC (NPI 1285083972) is a healthcare organization registered as an internal medicine in Woburn, Massachusetts and active in the NPI registry since June 2016. The organization lists Jason Grunes, Physician, as its authorized official.

NPPES Registry Identity

NPI1285083972
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameJASON GRUNES PLLC
Location Address2 REHABILITATION WAYWoburn, MA 01801-6003
Mailing Address2 Rehabilitation WayWoburn, MA 01801-6003 · (791) 935-5050
Phone(791) 935-5050
Organization SubpartNo
Authorized OfficialJason GrunesPhysician · (781) 933-3734
Enumeration DateJune 3, 2016
Last NPPES UpdateJune 13, 2016
✔ NPI 1285083972 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
2 REHABILITATION WAY, Woburn, MA 01801
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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

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.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)

Jason Grunes Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

5

Medicare enrollment records show 5 clinicians reassign Medicare billing to Jason Grunes PLLC, which bills Medicare for the services they deliver. Of these, 2 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (5)

Alla Tibbetts, M.D., D.O.
Critical Care (Intensivists)
NPI 1386807329
41 MALL RD
Burlington, MA 01805
(781) 744-5238
✔ PECOS✔ Accepts Medicare2.6 mi
Sarietha Mathieu, NP
Nurse Practitioner
NPI 1033727318
830 HARRISON AVE STE 1400
Boston, MA 02118
(617) 638-8124
✔ PECOS✔ Accepts Medicare9.9 mi
Anil Neeli, MD
Internal Medicine
NPI 1669619789
295 VARNUM AVE
Lowell, MA 01854
(978) 937-6938
✔ PECOS✔ Accepts Medicare16 mi
Jason Grunes, M.D.
Internal Medicine
NPI 1619131539
250 POND ST
Braintree, MA 02184
(774) 270-1618
✔ PECOS✔ Accepts Medicare20 mi
Rita Ho, APRN
Nurse Practitioner
NPI 1629805262
1337 BOSTON PROVIDENCE TPKE
Norwood, MA 02062
(781) 725-2225
✔ PECOS✔ Accepts Medicare20 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 Jason Grunes PLLC's NPI number?

The NPI number for Jason Grunes PLLC is 1285083972. It was assigned to this organization in the NPPES registry on June 3, 2016.

Where is Jason Grunes PLLC located?

Jason Grunes PLLC is located at 2 Rehabilitation Way, Woburn, MA 01801. The listed phone number is (791) 935-5050.

What is Jason Grunes PLLC's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Jason Grunes PLLC enrolled in Medicare?

Yes. Jason Grunes PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Jason Grunes PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 5 clinicians reassign their Medicare billing to Jason Grunes PLLC, in Critical Care (Intensivists), Internal Medicine and Nurse Practitioner. 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, 2 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Jason Grunes PLLC accept?

Health plans from Anthem Blue Cross and Blue Shield list Jason Grunes 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 Jason Grunes PLLC was last updated on June 13, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.