Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Alissa R Long, O.D.
Optometrist in Wilmington, DE · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1639326721
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Registry record
Entity type Individual (Type 1)
Name Alissa R Long
Credential O.D.
Sex Female
Practice address 1941 Limestone Rd Ste 200, Wilmington, DE, 19808
Phone (302) 998-2333
Fax (302) 998-2982
Enumeration date Aug 20, 2008
Last updated in NPPES May 8, 2024
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 |
|---|---|---|---|
| G00016 | Other | - | MEDICARE GRP PTAN |
| I3-0001342 | Other | DE | DE STATE LICENSE |
| P00947088 | Other | DE | PALMETTO GBA RR MEDICARE PTAN |
| 1639326721 | Other | DE | INDIVIDUAL NPI |
| 1245251313 | Other | DE | MEDICARE GROUP NPI |
| 802115H16 | Other | - | MEDICARE GRP MEMBER PTAN |
| 11895550 | Other | DE | CAQH ID |
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 1639326721 active?
Yes, as of the latest NPPES snapshot, NPI 1639326721 is active (record last updated 2024-05-08).
How do I verify Alissa Long's NPI record?
Cross-check NPI 1639326721 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 →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-05-08.