Tiffany M. Johnston
- Gender: Female
- Experience: 4 years
- Graduation year: 2017
- Sole propriator: No
- NPI: 1437670965
Tiffany M. Johnston CNP
Nurse Practitioner
She is located at 911 East 20th Street Suite 300 in Sioux Falls, SD 57105. Can help patients with the following: Fever, General Care, Headache, Influenza, Nausea and Vomiting, Prescription Refill. Her National Provider Identifier (NPI) number is 1437670965. Appointment can be made via the phone number (605) 322-1300. She is affiliated with 2 practices and 1 hospitals.
Conditions treated
Tiffany Marie Johnston, being an nurse practitioner, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Tiffany M. Johnston.
- Common Cold
- Fever
- General Care
- Headache
- Influenza
- Migraine
- Nausea and Vomiting
- Prescription Refill
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Tiffany M. Johnston as in-network for the following 2026 plans.
Health plans
Avera Health Plans
Network data as of Jan 23, 2026, as reported by the insurer.
Show all 23 plans from Avera Health Plans
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| ConnectPlus $0 Gold (2 plan variants) | PPO · Gold | Commercial | Accepting new patients |
| ConnectPlus $0 Silver (2 plan variants) | PPO · Silver | Commercial | Accepting new patients |
| ConnectPlus $10,600 HSA Eligible HDHP (2 plan variants) | PPO · Catastrophic | Commercial | Accepting new patients |
| ConnectPlus $1800 (2 plan variants) | PPO · Gold | Commercial | Accepting new patients |
| ConnectPlus $4500 (2 plan variants) | PPO · Silver | Commercial | Accepting new patients |
| ConnectPlus $6500 HSA Eligible HDHP (2 plan variants) | PPO · Expanded Bronze | Commercial | Accepting new patients |
| ConnectPlus $7500 HSA Eligible HDHP (2 plan variants) | PPO · Expanded Bronze | Commercial | Accepting new patients |
| ConnectPlus MyWeighForward $2000 (2 plan variants) | PPO · Gold | Commercial | Accepting new patients |
| ConnectPlus MyWeighForward $6000 (2 plan variants) | PPO · Silver | Commercial | Accepting new patients |
| ConnectPlus Standard $2000 (2 plan variants) | PPO · Gold | Commercial | Accepting new patients |
| ConnectPlus Standard $6000 (2 plan variants) | PPO · Silver | Commercial | Accepting new patients |
| ConnectPlus Standard $7500 HSA Eligible HDHP (2 plan variants) | PPO · Expanded Bronze | Commercial | Accepting new patients |
| DirectConnect $0 Gold | HMO · Gold | Direct | Accepting new patients |
| DirectConnect $0 Silver | HMO · Silver | Direct | Accepting new patients |
| DirectConnect $1800 | HMO · Gold | Direct | Accepting new patients |
| DirectConnect $4500 | HMO · Silver | Direct | Accepting new patients |
| DirectConnect $6500 HSA Eligible HDHP | HMO · Expanded Bronze | Direct | Accepting new patients |
| DirectConnect $7500 HSA Eligible HDHP | HMO · Expanded Bronze | Direct | Accepting new patients |
| DirectConnect MyWeighForward $2000 | HMO · Gold | Direct | Accepting new patients |
| DirectConnect MyWeighForward $6000 | HMO · Silver | Direct | Accepting new patients |
| DirectConnect Standard $2000 | HMO · Gold | Direct | Accepting new patients |
| DirectConnect Standard $6000 | HMO · Silver | Direct | Accepting new patients |
| DirectConnect Standard $7500 HSA Eligible HDHP | HMO · Expanded Bronze | Direct | Accepting new patients |
Wellmark of South Dakota, Inc.
Network data as of Sep 8, 2026, as reported by the insurer.
Show all 7 plans from Wellmark of South Dakota, Inc.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Wellmark Bronze HDHP EPO HSA Qualified (2 plan variants) | EPO · Expanded Bronze | Bluerx Essentials | Accepting new patients |
| Wellmark Bronze Traditional EPO (2 plan variants) | EPO · Expanded Bronze | Bluerx Essentials | Accepting new patients |
| Wellmark Gold Traditional EPO (2 plan variants) | EPO · Gold | Bluerx Essentials | Accepting new patients |
| Wellmark Silver Traditional EPO (2 plan variants) | EPO · Silver | Bluerx Essentials | Accepting new patients |
| Wellmark Standard Bronze EPO (2 plan variants) | EPO · Expanded Bronze | Bluerx Essentials | Accepting new patients |
| Wellmark Standard Gold EPO (2 plan variants) | EPO · Gold | Bluerx Essentials | Accepting new patients |
| Wellmark Standard Silver EPO (2 plan variants) | EPO · Silver | Bluerx Essentials | Accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Tiffany M. Johnston is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Tiffany M. Johnston is enrolled to bill Medicare as a Practitioner - Nurse Practitioner .
Bills through: Avera Mckennan
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Studies
Graduated in 2017
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Questions & Answers
What conditions does Tiffany Marie Johnston treat?
Tiffany Marie Johnston provides treatment for Fever, General Care, Headache, Influenza, Nausea and Vomiting, Prescription Refill. For the full list see this list.
Where can you meet with Tiffany Marie Johnston?
Tiffany Marie Johnston's office is located at 911 East 20th Street Suite 300 in Sioux Falls, SD 57105.
Does Tiffany Marie Johnston have affiliation with practices?
Tiffany Marie Johnston is affiliated with Orthopedic Institute. For the full list of practices see this list.
Does Tiffany Marie Johnston accept insurance?
Tiffany Marie Johnston is listed in-network for 30 ACA Marketplace (Obamacare/HealthCare.gov) plans from Avera Health Plans, Wellmark of South Dakota, Inc.. See the Marketplace plans section for details.
Has Tiffany Marie Johnston affiliation with hospitals?
Tiffany Marie Johnston is affiliated with AVERA MCKENNAN HOSPITAL & UNIVERSITY HEALTH CENTER.