Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Connor Eugene Weisser, DO

Family Medicine Physician in Custer, SD · enumerated 2021.

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

National Provider Identifier

1154904613

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Registry record

Entity type Individual (Type 1)

Name Connor Eugene Weisser

Credential DO

Sex Male

Practice address 1220 Montgomery St # 57730, Custer, SD, 57730

Phone (970) 810-2815

Enumeration date May 3, 2021

Last updated in NPPES Aug 27, 2024

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 15731 (SD) 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

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

Is NPI 1154904613 active?

Yes, as of the latest NPPES snapshot, NPI 1154904613 is active (record last updated 2024-08-27).

How do I verify Connor Weisser's NPI record?

Cross-check NPI 1154904613 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-08-27.