Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Karen Gladstone, OD
Optometrist in Lawrence, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1235158742
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Registry record
Entity type Individual (Type 1)
Name Karen Gladstone
Credential OD
Sex Female
Practice address 439 S Union St, Lawrence, MA, 01843
Phone (978) 686-2983
Fax (978) 686-0684
Enumeration date Jul 18, 2006
Last updated in NPPES Jul 8, 2007
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 |
|---|---|---|---|
| W22052 | Other | MA | BLUE SHIELD |
| 0371441 | 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
How do I verify Karen Gladstone's NPI record?
Cross-check NPI 1235158742 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1235158742 active?
Yes, as of the latest NPPES snapshot, NPI 1235158742 is active (record last updated 2007-07-08).
Other providers at this practice address
Browse all → Paul Arrigg Ophthalmology Physician · Lawrence, MA NPI 1740268127 Fred Arrigg Specialist · Lawrence, MA NPI 1770561235 Arrigg Associates , P.C. Specialist · Lawrence, MA NPI 1821019779 Purvi Patel Optometrist · Lawrence, MA NPI 1538182852 Yen-Linh Nguyen Optometrist · Lawrence, MA NPI 1558471672 Peter Gill Mental Health Counselor · Lawrence, MA NPI 1629114533 Amanda Hemp Clinical Social Worker · Lawrence, MA NPI 1336285402 Maren Matthias Social Worker · Lawrence, MA NPI 1629114764
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.