Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Janet Johnston, RD
Registered Dietitian in Denver, CO · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1619015542
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Registry record
Entity type Individual (Type 1)
Name Janet Johnston
Credential RD
Sex Female
Practice address 1400 Jackson St, Denver, CO, 80206
Phone (303) 388-4461
Fax (303) 270-2174
Enumeration date Feb 2, 2007
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 684986 (CO) Primary
RD · Registered Dietitian: A nutrition professional credentialed by the Commission on Dietetic Registration.
About the RD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| ADA 001 | Other | CO | AMERICAN DIETIC ASSOC |
| 002 | Other | OK | OKLAHOMA STATE UNIVERSITY |
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 Janet Johnston?
Janet Johnston is registered in NPPES with the primary taxonomy of Registered Dietitian. 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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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.