Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Gary L. Peters, MD
Specialist in Worcester, MA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1154306108
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Registry record
Entity type Individual (Type 1)
Name Gary L. Peters
Credential MD
Sex Male
Practice address 123 Summer Street, Suite 320, Worcester, MA, 01608
Phone (508) 368-3140
Fax (508) 368-3143
Enumeration date Dec 13, 2005
Last updated in NPPES Nov 13, 2018
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 6196101 | Medicaid | MA | - |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What is the NPI number for Gary Peters?
The National Provider Identifier (NPI) for Gary Peters is 1154306108, a Type 1 (individual) record in the CMS NPPES registry.
Where does Gary Peters practice?
The practice location on file with NPPES is in Worcester, MA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → George Abraham Internal Medicine Physician · Worcester, MA NPI 1730181876 William Balcom Orthopaedic Surgery Physician · Worcester, MA NPI 1639159841 Gregory Williams Infectious Disease Physician · Worcester, MA NPI 1043288848 Paul Arcand Surgery Physician · Worcester, MA NPI 1750350849 Diane Fruit Nurse Practitioner · Worcester, MA NPI 1205896560 Nitin Trivedi Endocrinology, Diabetes & Metabolism Physician · Worcester, MA NPI 1770543977 Robert Harizi Cardiovascular Disease Physician · Worcester, MA NPI 1093776957 Steven Donhowe Neurology Physician · Worcester, MA NPI 1801858584
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-11-13.