Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Karen Dick, MD

Q: What is the NPI number for Mary Dick?

The National Provider Identifier (NPI) for Mary Dick is 1205454915, a Type 1 (individual) record in the CMS NPPES registry.

Dermatology Physician in Oak Brook, IL · enumerated 2020.

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

National Provider Identifier

1205454915

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Registry record

Entity type Individual (Type 1)

Name Mary Karen Dick

Credential MD

Sex Female

Practice address 2011 York Rd, Oak Brook, IL, 60523

Phone (312) 947-7546

Enumeration date Jul 9, 2020

Last updated in NPPES Nov 18, 2025

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 036-174463 (IL) Primary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License TEP8828 (NE) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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

Where does Mary Dick practice?

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

What is the NPI number for Mary Dick?

The National Provider Identifier (NPI) for Mary Dick is 1205454915, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-18.