Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mark P Wejchert
Pharmacist in Miller Place, NY · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1033391198
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Registry record
Entity type Individual (Type 1)
Name Mark P Wejchert
Sex Male
Practice address 335 Route 25a, Miller Place, NY, 11764
Phone (631) 928-6800
Fax (631) 928-8644
Enumeration date Nov 30, 2007
Last updated in NPPES Nov 30, 2007
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 00351111 | Medicaid | NY | - |
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 is the NPI number for Mark Wejchert?
The National Provider Identifier (NPI) for Mark Wejchert is 1033391198, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mark Wejchert practice?
The practice location on file with NPPES is in Miller Place, NY. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-11-30.