NICHOLAS HARRIS MD
NPI 1144961368
Internal Medicine in Worcester, MA
About Nicholas Harris Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NICHOLAS HARRIS MD (NPI 1144961368) is an individual internal medicine provider in Worcester, Massachusetts, licensed in Massachusetts (1021417) and active in the NPI registry since April 2022. He is enrolled in Medicare PECOS, is affiliated with South Shore Hospital, and is a graduate of Other (2022).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Nicholas Harris Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Nicholas Harris reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Weymouth, MA 02190
- Reassigned Medicare billing, Massachusetts enrollment
- 671 clinicians in this Medicare group
Norwell, MA 02061
- Reassigned Medicare billing, Massachusetts enrollment
- 346 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
South Shore Hospital
Acute Care Hospitals · South Weymouth, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01655 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WORCESTER, MA 01655
WORCESTER, MA 01655
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 Nicholas Harris's NPI number?
The NPI number for Nicholas Harris is 1144961368. It was assigned to this individual provider in the NPPES registry on April 3, 2022.
Where is Nicholas Harris located?
Nicholas Harris practices at 55 Lake Ave N, Worcester, MA 01655. The listed phone number is (508) 334-1000.
What is Nicholas Harris's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Nicholas Harris enrolled in Medicare?
Yes. Nicholas Harris is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Nicholas Harris's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nicholas Harris reassigns Medicare benefits to 2 organizations: Coastal Medical Associates (Weymouth, MA) and South Shore Medical Center, Inc. (Norwell, MA). Each 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 Nicholas Harris's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nicholas Harris accept?
Health plans from Taro Health list Nicholas Harris 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.
Is Nicholas Harris affiliated with any hospitals?
According to CMS data, Nicholas Harris is affiliated with South Shore Hospital.
When was this NPI record last updated?
The NPPES record for Nicholas Harris was last updated on October 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 days 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.
# Nicholas Harris, MD · NPI 1144961368
Internal Medicine physician in Worcester, Massachusetts. Individual provider, active in the CMS NPPES registry since April 3, 2022.
## Identity
- **NPI:** 1144961368 (Entity type: Individual)
- **Enumerated:** April 3, 2022
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 1021417 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 55 LAKE AVE N, Worcester, MA 01655-0002
- **Phone:** (508) 334-1000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Coastal Medical Associates (NPI 1932175684, Weymouth, MA); South Shore Medical Center, Inc. (NPI 1669411856, Norwell, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** October 23, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1144961368) · Data from the CMS NPPES public registry.