Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. David J Helfman, OD
Optometrist in Nashua, NH · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1275568024
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Registry record
Entity type Individual (Type 1)
Name Dr. David J Helfman
Credential OD
Sex Male
Practice address 505 W Hollis St, Nashua, NH, 03062
Phone (603) 882-0311
Fax (603) 882-3020
Enumeration date Jul 11, 2006
Last updated in NPPES Jan 8, 2020
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 40000603 | Medicaid | NH | - |
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 David Helfman?
The National Provider Identifier (NPI) for David Helfman is 1275568024, a Type 1 (individual) record in the CMS NPPES registry.
Where does David Helfman practice?
The practice location on file with NPPES is in Nashua, NH. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Carol Pelletier Nurse Practitioner · Nashua, NH NPI 1407833155 Hugh Phillis Orthodontics and Dentofacial Orthopedics Dentistry · Nashua, NH NPI 1184667115 Helfman Lasky & Associates P A Optometrist · Nashua, NH NPI 1689603730 Elliot Lasky Optometrist · Nashua, NH NPI 1184659930 John Machell Dentist · Nashua, NH NPI 1124136999 Jaclyn Minar Ziegler Physical Therapist · Nashua, NH NPI 1164534251 Robert Posnick Dermatology Physician · Nashua, NH NPI 1497866388 Julie Beck Goss Clinical Social Worker · Nashua, NH NPI 1700997491
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-01-08.