Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. David Z Greenseid, M.D.
Ophthalmology Physician in Lynn, MA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1700881091
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Registry record
Entity type Individual (Type 1)
Name Dr. David Z Greenseid
Credential M.D.
Sex Male
Practice address 225 Boston St, Lynn, MA, 01904
Phone (781) 581-7333
Fax (781) 598-2447
Enumeration date Jun 14, 2005
Last updated in NPPES Sep 10, 2008
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 2012677 | 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
Is NPI 1700881091 active?
Yes, as of the latest NPPES snapshot, NPI 1700881091 is active (record last updated 2008-09-10).
How do I verify David Greenseid's NPI record?
Cross-check NPI 1700881091 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 2008-09-10.