MATTHEW S HORSFIELD MD
NPI 1013998129
Family Medicine in Worcester, MA
About Matthew S Horsfield Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MATTHEW S HORSFIELD MD (NPI 1013998129) is an individual family medicine provider in Worcester, Massachusetts, licensed in Massachusetts (1015693) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with St Vincent Hospital, and is a graduate of University Of South Florida College Of Medicine (1994).
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
Matthew S Horsfield 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 Matthew Horsfield reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Worcester, MA 01606
- Reassigned Medicare billing, Massachusetts enrollment
- 718 clinicians in this Medicare group
Houston, TX 77030
- Reassigned Medicare billing, Texas enrollment
- 2,554 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.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Vincent Hospital
Acute Care Hospitals · Worcester, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01606 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Referred Medical Equipment & Supplies CMS DME claims 4
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 01606
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 Matthew Horsfield's NPI number?
The NPI number for Matthew Horsfield is 1013998129. It was assigned to this individual provider in the NPPES registry on November 7, 2005.
Where is Matthew Horsfield located?
Matthew Horsfield practices at 5 Neponset St, Worcester, MA 01606. The listed phone number is (508) 425-5566.
What is Matthew Horsfield's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Matthew Horsfield enrolled in Medicare?
Yes. Matthew Horsfield 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 Matthew Horsfield's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Horsfield reassigns Medicare benefits to 2 organizations: Reliant Medical Group, Inc (Worcester, MA) and Baylor College Of Medicine (Houston, TX). 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 Matthew Horsfield's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Matthew Horsfield accept?
Health plans from Anthem Blue Cross and Blue Shield list Matthew Horsfield 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 Matthew Horsfield affiliated with any hospitals?
According to CMS data, Matthew Horsfield is affiliated with St Vincent Hospital.
When was this NPI record last updated?
The NPPES record for Matthew Horsfield was last updated on May 20, 2024. 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.
# Matthew S Horsfield, MD · NPI 1013998129
Family Medicine physician in Worcester, Massachusetts. Individual provider, active in the CMS NPPES registry since November 7, 2005.
## Identity
- **NPI:** 1013998129 (Entity type: Individual)
- **Enumerated:** November 7, 2005
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 1015693 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 5 NEPONSET ST, Worcester, MA 01606-2714
- **Phone:** (508) 425-5566 · **Fax:** (508) 365-6590
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Reliant Medical Group, Inc (NPI 1720017528, Worcester, MA); Baylor College Of Medicine (NPI 1881026664, Houston, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of South Florida College Of Medicine, class of 1994
## Record status
- **NPPES last updated:** May 20, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1013998129) · Data from the CMS NPPES public registry.