Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Mark L Westphal

Q: What type of organization is Mark L Westphal?

Mark L Westphal is registered in NPPES as a Dermatology Physician (its primary provider taxonomy).

Dermatology Physician in Carbondale, IL · enumerated 2024 · authorized official Mark Westphal, President.

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

National Provider Identifier

1477311694

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Registry record

Entity type Organization (Type 2)

Legal business name Mark L Westphal

Practice address 665 E Lake Rd, Carbondale, IL, 62901

Phone (618) 549-0841

Fax (618) 529-2442

Enumeration date Mar 12, 2024

Last updated in NPPES Mar 12, 2024

Taxonomy & classification

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Mark Westphal

Title President

Phone (618) 549-0841

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 a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Mark L Westphal?

Mark L Westphal is registered in NPPES as a Dermatology Physician (its primary provider taxonomy).

Providers at this address

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Mark Westphal Dermatology Physician · Carbondale, IL NPI 1043388242 Kelly Hand Physician Assistant · Carbondale, IL NPI 1851502421

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-03-12.