Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Megan Ann Alfredsen, NP

Family Nurse Practitioner in West Islip, NY · enumerated 2026 · practices at Planned Parenthood Hp.

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

National Provider Identifier

1912829698

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Ms. Megan Ann Alfredsen

Credential NP

Sex Female

Practice address 180 Sunrise Hwy, West Islip, NY, 11795

Phone (631) 893-0150

Enumeration date Jul 27, 2026

Last updated in NPPES Jul 27, 2026

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F359881-01 (NY) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP 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 specialty is Megan Alfredsen?

Megan Alfredsen is registered in NPPES with the primary taxonomy of Family Nurse Practitioner. 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 2026-07-27.