Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Jeff Mierczynski
Pharmacist in Sacramento, CA · enumerated 2017.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1801327465
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Registry record
Entity type Individual (Type 1)
Name Jeff Mierczynski
Sex Male
Practice address 2025 Morse Ave Fl 2, Sacramento, CA, 95825
Phone (916) 973-4920
Enumeration date Mar 24, 2017
Last updated in NPPES Mar 24, 2017
Taxonomy & licenses
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
Where does Jeff Mierczynski practice?
The practice location on file with NPPES is in Sacramento, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Jeff Mierczynski?
The National Provider Identifier (NPI) for Jeff Mierczynski is 1801327465, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-03-24.