Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mrs. Carol B. Johnston, APN

Individual provider Family Nurse Practitioner · NPI 1679810337

Mrs. Carol B. Johnston, APN is a Nurse Practitioner in Thornton, Colorado. Qualified in 2012, 14 years ago. Practices with Denver Nephrologists PC, a 44-clinician group and accepts Medicare assignment. Licensed in Colorado.

Years since qualifying
14
Licensed in
CO
In the registry since
2013
What do these letters mean?
APN — Advanced Practice Nurse
The umbrella title some states use for nurse practitioners and other advanced practice nurses.

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Practice location Address checks out

9195 Grant St Ste 225
Thornton, CO 80229-4349
Phone: (720) 536-2460
Fax: (720) 536-2466
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 0990500 (CO)

Record details

NPI number1679810337
Entity typeIndividual (Type 1)
GenderFemale
Credentials APN
Sole proprietorNo
NPI enumeratedJanuary 14, 2013
Last updated in NPPESAugust 27, 2025
Certification dateAugust 27, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2012 (14 years in practice)
Group practice Denver Nephrologists Pc — 44 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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