NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Mark Ethan Vannorden, D.O.

Family Medicine Physician in Larned, KS · enumerated 2006 · practices at Rural Medical Services, Inc.

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

National Provider Identifier

1376595959

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Registry record

Entity type Individual (Type 1)
Name Dr. Mark Ethan Vannorden
Credential D.O.
Sex Male
Practice address Larned, KS, 67550
Fax (620) 285-6194
Enumeration date May 16, 2006
Last updated in NPPES Apr 1, 2020

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 0530418 (KS) Secondary
207PE0004X Emergency Medical Services (Emergency Medicine) Physician Allopathic & Osteopathic Physicians · License 05-30418 (KS) Secondary
207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 05-30418 (KS) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
200252510C Medicaid KS -
107025 Other KS BLUE SHIELD
200252510F Medicaid KS -

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.

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Frequently asked questions

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.
What specialty is Mark Vannorden?
Mark Vannorden is registered in NPPES with the primary taxonomy of Family Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-04-01.