Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Steven A Markow, OD
Optometrist in So Hadley, MA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1093716235
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Registry record
Entity type Individual (Type 1)
Name Steven A Markow
Credential OD
Sex Male
Practice address 7 Hadley St, Suite 1, So Hadley, MA, 01075
Phone (413) 536-6100
Fax (413) 536-8100
Enumeration date Aug 10, 2005
Last updated in NPPES Mar 10, 2008
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD 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
Is NPI 1093716235 active?
Yes, as of the latest NPPES snapshot, NPI 1093716235 is active (record last updated 2008-03-10).
How do I verify Steven Markow's NPI record?
Cross-check NPI 1093716235 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-03-10.