Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Sara Adams Aierstuck, RN, NP
Nurse Practitioner in Amherst, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1356429484
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Registry record
Entity type Individual (Type 1)
Name Sara Adams Aierstuck
Credential RN, NP
Sex Female
Practice address 150 Infirmary Way, University Health Services, Amherst, MA, 01002
Phone (413) 577-5000
Fax (413) 577-5117
Enumeration date Nov 2, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 196742NP (MA) Primary
RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam.
About the RN 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
How do I verify Sara Aierstuck's NPI record?
Cross-check NPI 1356429484 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1356429484 active?
Yes, as of the latest NPPES snapshot, NPI 1356429484 is active (record last updated 2007-07-08).
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.