Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mackenzie Tatar, PA
Physician Assistant in Boston, MA · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1457069494
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Registry record
Entity type Individual (Type 1)
Name Mackenzie Tatar
Credential PA
Sex Female
Practice address 725 Albany St Ste 4b, Boston, MA, 02118
Phone (617) 638-5633
Fax (617) 414-5226
Enumeration date Nov 8, 2022
Last updated in NPPES Feb 19, 2026
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA9164 (MA) Primary
PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program.
About the PA 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
What specialty is Mackenzie Tatar?
Mackenzie Tatar is registered in NPPES with the primary taxonomy of Physician Assistant. 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
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-19.