Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Matthew S Horsfield, MD

Individual provider Family Medicine Physician · NPI 1013998129

Matthew S Horsfield, MD is a Family Practice in Worcester, Massachusetts. Graduated from University of South Florida College of Medicine in 1994, 32 years ago. Practices with Reliant Medical Group Inc, a 638-clinician group and accepts Medicare assignment. Licensed in Louisiana, Massachusetts, South Carolina and Texas.

Years since qualifying
32
Trained at
University of South Florida College of Medicine
Licensed in
LA, MA, SC, TX
In the registry since
2005
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

5 Neponset St
Worcester, MA 01606-2714
Phone: (508) 425-5566
Fax: (508) 365-6590
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 1015693 (MA)
Family Medicine Physician Taxonomy 207Q00000X · Licence 18082 (SC)
Family Medicine Physician Taxonomy 207Q00000X · Licence 12242R (LA)
Family Medicine Physician Taxonomy 207Q00000X · Licence M5232 (TX)

Record details

NPI number1013998129
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 7, 2005
Last updated in NPPESMay 20, 2024
Certification dateMay 20, 2024
Mailing address5 Neponset St, Worcester, MA 01606-2714

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF SOUTH FLORIDA COLLEGE OF MEDICINE
Graduated 1994 (32 years in practice)
Group practice Reliant Medical Group Inc — 638 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Worcester