Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

David Lawrence Harker, MD

Surgery Physician in Riverton, WY · enumerated 2006.

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

National Provider Identifier

1710996020

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Registry record

Entity type Individual (Type 1)

Name David Lawrence Harker

Credential MD

Sex Male

Practice address 2100 W Sunset Dr, Riverton, WY, 82501

Phone (307) 856-4161

Fax (307) 857-5212

Enumeration date Aug 5, 2006

Last updated in NPPES Feb 1, 2019

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 5005151205 (UT) Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 10454A (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

What specialty is David Harker?

David Harker is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

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Brooks Allison, MD PC Specialist · Riverton, WY NPI 1053374876 Archie Allison Specialist · Riverton, WY NPI 1144284506 Thomas L. Walsh, MD PC Specialist · Riverton, WY NPI 1740245695 Matthew Mullinix Certified Registered Nurse Anesthetist · Riverton, WY NPI 1063457893 Kari Sack Certified Registered Nurse Anesthetist · Riverton, WY NPI 1588609325 Ryan Wilcox Certified Registered Nurse Anesthetist · Riverton, WY NPI 1881630994 Riverton Memorial Hospital LLC Medicare Defined Swing Bed Hospital Unit · Riverton, WY NPI 1003902669 Riverton Memorial Hospital LLC Internal Medicine Physician · Riverton, WY NPI 1932247012

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-02-01.