Doctor profile · Federal record

Dr. Carol Johnston, APN

Family Nurse Practitioner (CMS: Nurse Practitioner) · Thornton, CO

  • NPI 1679810337
  • Accepts Medicare
  • 14 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
9195 Grant St Ste 225
Thornton, CO 802294349
(720) 536-2460
fax (720) 536-2466

Credentials & registration

NPPES · NUCC
NPI registered
January 2013 — 13 yrs on file
Profile last updated
August 27, 2025
Year of graduation
2012 — 14 yrs since
Specialty taxonomy
363LF0000X — NUCC code
State license (1)
Colorado #0990500
Medicaid
CO #46324879

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1679810337. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
52
Distinct HCPCS
2
Medicare allowed
$6,868
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 40 14 $100
99496 Transitional care management services for problem of high complexity 12 11 $238

In context: peer comparison

Among 8 peers in Thornton Family Nurse Practitioner, average services per provider: 61. This provider delivers 0.9× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$25
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Ardelyx, INC. 1 $24.75

By nature of payment

Food and Beverage
$25

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
319
Patients
54
Total drug cost
$86,048
Drug Type Claims Patients Total cost
Sevelamer Carbonate Generic 56 23 $17,521
Furosemide Generic 47 20 $617
Lidocaine-Prilocaine (Lidocaine/Prilocaine) Brand 24 11 $1,079
Calcium Acetate Generic 22 0 $4,381
Auryxia (Ferric Citrate) Brand 21 0 $30,884
Lokelma (Sodium Zirconium Cyclosilicate) Brand 21 0 $19,036
Levothyroxine Sodium Generic 20 0 $398
Midodrine Hcl Generic 20 0 $2,406
Amlodipine Besylate Generic 19 0 $154
Atorvastatin Calcium Generic 18 0 $257

Frequently asked questions

Auto-generated from federal data
What is Dr. Carol Johnston's medical specialty?
Dr. Carol Johnston practices Family Nurse Practitioner in Thornton, CO.
Where does Dr. Carol Johnston practice?
Dr. Carol Johnston practices at 9195 Grant St Ste 225, Thornton, CO 802294349. Office phone: 7205362460.
What is Dr. Carol Johnston's NPI?
Dr. Carol Johnston's National Provider Identifier (NPI) is 1679810337, issued by NPPES.
Does Dr. Carol Johnston accept Medicare assignment?
Yes. Dr. Carol Johnston accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Carol Johnston commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Transitional care management services for problem of high complexity (HCPCS 99496). Source: CMS Medicare Physician & Other Practitioners file.