Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Mary Lou Geiger, RDO
Optician in Melrose, MA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1114126356
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Registry record
Entity type Individual (Type 1)
Name Mrs. Mary Lou Geiger
Credential RDO
Sex Female
Practice address 490 Main St, Melrose, MA, 02176
Phone (781) 665-8828
Fax (781) 665-8828
Enumeration date Jul 17, 2007
Last updated in NPPES Sep 8, 2009
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 110074818/A | 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 specialty is Mary Lou Geiger?
Mary Lou Geiger is registered in NPPES with the primary taxonomy of Optician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-09-08.