Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Liam Gerhardt Clark, MD

Q: What is the NPI number for Liam Clark?

The National Provider Identifier (NPI) for Liam Clark is 1871090837, a Type 1 (individual) record in the CMS NPPES registry.

Neurology Physician in Cheyenne, WY · enumerated 2018 · practices at Cheyenne Regional Physicians Group, LLC.

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

National Provider Identifier

1871090837

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Liam Gerhardt Clark

Credential MD

Sex Male

Practice address 2301 House Ave Ste 201, Cheyenne, WY, 82001

Phone (307) 638-7757

Enumeration date Apr 6, 2018

Last updated in NPPES Jan 20, 2026

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 11441506-1205 (UT) Secondary

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 15685A (WY) Primary

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 Liam Clark practice?

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

What is the NPI number for Liam Clark?

The National Provider Identifier (NPI) for Liam Clark is 1871090837, 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 2026-01-20.