Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Edmund A Hasenjager, D.O.
Optician in Springfield, MA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1689720328
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Registry record
Entity type Individual (Type 1)
Name Edmund A Hasenjager
Credential D.O.
Sex Male
Practice address 352 Cooley St, Springfield, MA, 01128
Phone (413) 782-6401
Fax (413) 782-8760
Enumeration date Jan 26, 2007
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD.
About the DO 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
How do I verify Edmund Hasenjager's NPI record?
Cross-check NPI 1689720328 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1689720328 active?
Yes, as of the latest NPPES snapshot, NPI 1689720328 is active (record last updated 2007-07-08).
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.