Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Joanna Machain
Nurse Practitioner in Boston, MA · enumerated 2016.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1932561289
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Registry record
Entity type Individual (Type 1)
Name Joanna Machain
Sex Female
Practice address 84 State St, Suite 660, Boston, MA, 02109
Phone (800) 370-3651
Enumeration date Mar 25, 2016
Last updated in NPPES Mar 9, 2017
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN2307754 (MA) Primary
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 1932561289 active?
Yes, as of the latest NPPES snapshot, NPI 1932561289 is active (record last updated 2017-03-09).
How do I verify Joanna Machain's NPI record?
Cross-check NPI 1932561289 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-03-09.