Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Sergio Guzman, D.M.D., M.S.D.
Periodontics in Worcester, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1649209487
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Sergio Guzman
Credential D.M.D., M.S.D.
Sex Male
Practice address 255 Park Ave, Suite 701, Worcester, MA, 01609
Phone (508) 363-4400
Fax (508) 363-4700
Enumeration date Jul 2, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees.
About the DMD credential
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
Is NPI 1649209487 active?
Yes, as of the latest NPPES snapshot, NPI 1649209487 is active (record last updated 2007-07-08).
How do I verify Sergio Guzman's NPI record?
Cross-check NPI 1649209487 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Peter Audette General Practice Dentistry · Worcester, MA NPI 1578567228 Philip Cabrera Endodontics · Worcester, MA NPI 1629068820 Walter Goljan Internal Medicine Physician · Worcester, MA NPI 1619942679 James Hurowitz Internal Medicine Physician · Worcester, MA NPI 1063488567 Amy Kendrick Nurse Practitioner · Worcester, MA NPI 1619907094 Michael Shustak General Practice Dentistry · Worcester, MA NPI 1821005562 Robert Greene Podiatrist · Worcester, MA NPI 1205843893 Athan Savas Periodontics · Worcester, MA NPI 1336157874
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.