Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Aliza Rosenstein, CNM, WHNP

Advanced Practice Midwife in Greenfield, MA · enumerated 2018.

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

National Provider Identifier

1841773348

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Registry record

Entity type Individual (Type 1)

Name Aliza Rosenstein

Credential CNM, WHNP

Sex Female

Practice address 48 Sanderson St, Greenfield, MA, 01301

Phone (413) 794-2200

Fax (413) 794-4050

Enumeration date Sep 11, 2018

Last updated in NPPES Feb 9, 2024

Taxonomy & licenses

367A00000X Advanced Practice Midwife Physician Assistants & Advanced Practice Nursing Providers · License RN2328252 (MA) Primary

CNM · Certified Nurse Midwife: An advanced practice nurse specializing in pregnancy, childbirth, and reproductive care. About the CNM 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Aliza Rosenstein?

The National Provider Identifier (NPI) for Aliza Rosenstein is 1841773348, a Type 1 (individual) record in the CMS NPPES registry.

Where does Aliza Rosenstein practice?

The practice location on file with NPPES is in Greenfield, MA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-02-09.