Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Colleen Nielsen
Registered Nurse in Leadville, CO · enumerated 2009.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1497984272
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Registry record
Entity type Individual (Type 1)
Name Colleen Nielsen
Sex Female
Practice address 112 W 5th St, Leadville, CO, 80461
Phone (719) 486-0118
Fax (719) 486-4168
Enumeration date Jul 14, 2009
Last updated in NPPES Jul 14, 2009
Taxonomy & licenses
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.
Frequently asked questions
What specialty is Colleen Nielsen?
Colleen Nielsen is registered in NPPES with the primary taxonomy of Registered Nurse. 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
Browse all → Julie Lewis Registered Nurse · Leadville, CO NPI 1952353336 Frances Jimenez Registered Nurse · Leadville, CO NPI 1194999425 Patricia Kanagy Registered Nurse · Leadville, CO NPI 1447424775 Cornelia Patti Registered Nurse · Leadville, CO NPI 1427287291 Judy Tyson Registered Nurse · Leadville, CO NPI 1831425206 Roberta Seibel Registered Nurse · Leadville, CO NPI 1114257573 Kathy Westover Public Health or Welfare Agency · Leadville, CO NPI 1356680771 Heidi Colley Licensed Practical Nurse · Leadville, CO NPI 1740702190
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-07-14.