NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Jenifer Lyn Alonso, FNP-C

Family Nurse Practitioner in Marshall, MI · enumerated 2023 · practices at Dermatology & Skin Surgery Center.

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

National Provider Identifier

1831887561

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Ms. Jenifer Lyn Alonso
Credential FNP-C
Sex Female
Practice address 203 Winston Dr, Marshall, MI, 49068
Enumeration date May 1, 2023
Last updated in NPPES Jul 30, 2026

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F04230224 (MI) Primary
363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209-035845 (IL) Secondary

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

Where does Jenifer Alonso practice?
The practice location on file with NPPES is in Marshall, MI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Jenifer Alonso?
The National Provider Identifier (NPI) for Jenifer Alonso is 1831887561, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-07-30.