Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Alexis Mierzwa, DDS

Dentist in Winchester, VA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1629141452

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Alexis Mierzwa

Credential DDS

Sex Female

Practice address 650 Cedar Creek Grade, Suite 211, Winchester, VA, 22601

Phone (540) 486-5111

Fax (540) 486-5112

Enumeration date Nov 17, 2006

Last updated in NPPES Aug 10, 2015

Taxonomy & licenses

122300000X Dentist Dental Providers · License 0401412114 (VA) Primary

122300000X Dentist Dental Providers · License 052401 (NY) Secondary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Other identifiers

Identifier	Type	State	Issuer
02738663	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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Alexis Mierzwa?

Alexis Mierzwa is registered in NPPES with the primary taxonomy of Dentist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-08-10.