Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Lakeside Dermatology

Dermatology Physician in Libertyville, IL · enumerated 2015 · authorized official Martha Arroyo, Owner.

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

National Provider Identifier

1508252875

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Registry record

Entity type Organization (Type 2)

Legal business name Lakeside Dermatology

Practice address 1240 N Milwaukee Ave, Libertyville, IL, 60048

Phone (847) 367-5575

Fax (847) 367-5579

Enumeration date Apr 13, 2015

Last updated in NPPES Dec 15, 2021

Taxonomy & classification

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 036.114928 (IL) Primary

Authorized official

Name Martha Arroyo

Title Owner

Phone (847) 367-5575

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2021-12-15. Verify at npiregistry.cms.hhs.gov.

Where is Lakeside Dermatology located?

The practice location on file with NPPES is in Libertyville, IL.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-15.