WORCESTER INTERNAL MEDICINE, INC.
NPI 1063565422
Internal Medicine in Worcester, MA

Active since January 19, 2007CLIA 22D0718726 · Waiver
416 BELMONT ST, WORCESTER, MA 01604(508) 756-1808(508) 798-0538 Get Directions Write a Review

NPPES record last updated: December 5, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Worcester Internal Medicine, Inc. NPPES

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

WORCESTER INTERNAL MEDICINE, INC. (NPI 1063565422) is a healthcare organization registered as an internal medicine in Worcester, Massachusetts and active in the NPI registry since January 2007. The organization holds a CLIA Waiver certificate valid through November 30, 2027 and lists Thomas R Patnaude, Owner, as its authorized official.

NPPES Registry Identity

NPI1063565422
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameWORCESTER INTERNAL MEDICINE, INC.
Location Address416 BELMONT STWorcester, MA 01604-1086
Mailing Address416 Belmont StWorcester, MA 01604-1086 · (508) 756-1808 · Fax (508) 798-0538
Fax(508) 798-0538
Organization SubpartNo
Authorized OfficialThomas R PatnaudeOwner · (508) 756-1808
Enumeration DateJanuary 19, 2007
Last NPPES UpdateDecember 5, 2023
NPPES CertifiedDecember 5, 2023
✔ NPI 1063565422 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MA · 40759
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.
416 BELMONT ST, Worcester, MA 01604

Other Identifiers 3

Other722326MA · Tufts
Other7810MA · Fallon Comm. Health Plan
Medicaid9726993MA

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)

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

Medicare Revalidation Due Date

Revalidation due by February 28, 2027

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 IDO20040802000222Non-DME Part B · Clinic/Group PracticeDue dateFebruary 28, 2027
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

22

Medicare enrollment records show 22 clinicians reassign Medicare billing to Worcester Internal Medicine, Inc., which bills Medicare for the services they deliver. Of these, 6 practice at this address and 15 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 2

Nurse Practitioner17
Internal Medicine5

Nearest to this location (20)

See all 22
Nurse Practitioner
NPI 1972938983
416 BELMONT ST
Worcester, MA 01604
(508) 756-6609
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1639231426
416 BELMONT ST
Worcester, MA 01604
(508) 756-1808
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1427576453
416 BELMONT ST
Worcester, MA 01604
(508) 756-6609
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1649641689
416 BELMONT ST WORCESTER INTERNAL MEDICINE
Worcester, MA 01604
(508) 756-6609
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1124421862
416 BELMONT ST
Worcester, MA 01604
(915) 667-2684
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1003469230
416 BELMONT ST
Worcester, MA 01604
(508) 756-6609
✔ PECOSSame address
Nurse Practitioner
NPI 1376927400
630 PLANTATION ST
Worcester, MA 01605
(508) 852-0600
✔ PECOS✔ Accepts Medicare1.3 mi
Internal Medicine
NPI 1588831259
119 BELMONT ST
Worcester, MA 01605
(508) 334-8630
✔ PECOS1.6 mi
Nurse Practitioner
NPI 1194881789
291 LINCOLN ST
Worcester, MA 01605
(508) 334-6251
✔ PECOS✔ Accepts Medicare1.7 mi
Nurse Practitioner
NPI 1447919535
19 TACOMA ST
Worcester, MA 01605
(508) 852-1805
✔ PECOS✔ Accepts Medicare2.0 mi
Nurse Practitioner
NPI 1790476968
100 GROVE ST STE 115
Worcester, MA 01605
(214) 597-0265
✔ PECOS✔ Accepts Medicare2.1 mi
Internal Medicine
NPI 1699732800
405 GROVE ST
Worcester, MA 01605
(508) 756-6609
✔ PECOS✔ Accepts Medicare2.6 mi
Internal Medicine
NPI 1316994049
405 GROVE ST
Worcester, MA 01605
(508) 756-6609
✔ PECOS✔ Accepts Medicare2.6 mi
Nurse Practitioner
NPI 1598212730
189 MAY ST
Worcester, MA 01602
(508) 334-7672
✔ PECOS✔ Accepts Medicare4.0 mi
Nurse Practitioner
NPI 1316659824
60A APTHORP ST
Worcester, MA 01606
(508) 615-2569
✔ PECOS✔ Accepts Medicare4.2 mi
Nurse Practitioner
NPI 1558070466
10 VETERANS MEMORIAL DR
Milford, MA 01757
(508) 473-6414
✔ PECOS✔ Accepts Medicare16 mi
Nurse Practitioner
NPI 1700694833
19 W TREMLETT ST UNIT 2
Dorchester, MA 02124
(978) 821-0889
✔ PECOS✔ Accepts Medicare35 mi
Nurse Practitioner
NPI 1790804433
2 DUDLEY ST SUITE 470
Providence, RI 02905
(401) 272-1800
✔ PECOS✔ Accepts Medicare37 mi
Nurse Practitioner
NPI 1043437809
103 MYRON ST SUITE A
West Springfield, MA 01089
(413) 592-1980
✔ PECOS✔ Accepts Medicare46 mi
Internal Medicine
NPI 1194107987
580 COURT ST
Keene, NH 03431
(603) 354-5400
✔ PECOS✔ Accepts Medicare54 mi
See all 22 clinicians

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 22D0718726

Worcester Internal Medicine · Worcester, MA
Active · expires Nov 30, 2027
CLIA Number22D0718726
Laboratory TypePhysician Office
Certificate Effective DateDecember 1, 2025
Certificate Expiration DateNovember 30, 2027
Laboratory DirectorThomas Patnaude
Laboratory Phone(508) 756-6609
Laboratory LocationWorcester Internal Medicine416 Belmont St, Worcester, MA 01604
CLIA data matches this NPI record on: Address Name
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 Worcester Internal Medicine, Inc.'s NPI number?

The NPI number for Worcester Internal Medicine, Inc. is 1063565422. It was assigned to this organization in the NPPES registry on January 19, 2007.

Where is Worcester Internal Medicine, Inc. located?

Worcester Internal Medicine, Inc. is located at 416 Belmont St, Worcester, MA 01604. The listed phone number is (508) 756-1808.

What is Worcester Internal Medicine, Inc.'s specialty?

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

Is Worcester Internal Medicine, Inc. enrolled in Medicare?

Yes. Worcester Internal Medicine, Inc. is registered in the Medicare PECOS enrollment system.

When is Worcester Internal Medicine, 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 February 28, 2027. 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 Worcester Internal Medicine, Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 22 clinicians in 2 Medicare specialties reassign their Medicare billing to Worcester Internal Medicine, 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. The largest specialties are Nurse Practitioner (17) and Internal Medicine (5). Of these, 6 practice at this address and 15 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Worcester Internal Medicine, Inc. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 22D0718726) is associated with this NPI, valid through November 30, 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 Worcester Internal Medicine, Inc. was last updated on December 5, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.