Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Colin Lee Natrop, D.C.
Chiropractor in Rhinelander, WI · enumerated 2015.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1154710812
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Registry record
Entity type Individual (Type 1)
Name Dr. Colin Lee Natrop
Credential D.C.
Sex Male
Practice address 2710 Green Bass Rd, Rhinelander, WI, 54501
Phone (763) 404-6244
Fax (763) 785-4172
Enumeration date Jan 20, 2015
Last updated in NPPES Jan 20, 2015
Taxonomy & licenses
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders.
About the DC 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.
Frequently asked questions
What specialty is Colin Natrop?
Colin Natrop is registered in NPPES with the primary taxonomy of Chiropractor. 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.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-01-20.