Johnna Diaz
- Gender: Female
- Sole propriator: No
- NPI: 1144843673
Johnna Diaz APRN, FNP-C
Family Nurse Practitioner
She is located at 21245 Lorain Road in Fairview Park, OH 44126. Can help patients with the following: Arthritis, Attention-Deficit/Hyperactivity Disorder (ADHD), Child or Adolescent, Fever, Migraine, Women's Health. Her National Provider Identifier (NPI) number is 1144843673. Appointment can be made via the phone number (440) 949-9835.
Conditions treated
Johnna Diaz, being an family 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 Johnna Diaz.
- Acne
- Allergies
- Anxiety
- Arthritis
- Asthma
- Attention-Deficit/Hyperactivity Disorder (ADHD)
- Child or Adolescent
- Common Cold
- Depression
- Diabetes
- Fever
- General Care
- Gynecological Exam
- Headache
- High Cholesterol
- Hypertension
- Influenza
- Insomnia
- Migraine
- Nausea and Vomiting
- Obesity
- Prescription Refill
- Sexually Transmitted Diseases (STDs)
- Weight Loss
- Women's Health
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Johnna Diaz as in-network for the following 2026 plans.
Health plans
CareSource
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 21 plans from CareSource
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Bronze 7500 $25 Generic Drugs | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze 7500 $25 Generic Drugs + Adult Vision & Fitness | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Core Gold 1500 $10 Generic Drugs | HMO · Gold | Preferred | Accepting new patients |
| Core Gold 1500 $10 Generic Drugs + Adult Vision & Fitness | HMO · Gold | Preferred | Accepting new patients |
| Diabetes Gold 3000 $0 Chronic Care Drugs & Services | HMO · Gold | Preferred | Accepting new patients |
| Diabetes Gold 3000 $0 Chronic Care Drugs & Services + Adult Vision & Fitness | HMO · Gold | Preferred | Accepting new patients |
| Diabetes Silver 5000 $0 Chronic Care Drugs & Services | HMO · Silver | Preferred | Accepting new patients |
| Diabetes Silver 5000 $0 Chronic Care Drugs & Services + Adult Vision & Fitness | HMO · Silver | Preferred | Accepting new patients |
| Gold 2000 $15 Generic Drugs | HMO · Gold | Preferred | Accepting new patients |
| Gold 2000 $15 Generic Drugs + Adult Vision & Fitness | HMO · Gold | Preferred | Accepting new patients |
| HDHP Preventive Silver 5500 $0 Chronic Care Drugs | HMO · Silver | Preferred | Accepting new patients |
| Healthy Heart Gold 3000 $0 Chronic Care Drugs & Services | HMO · Gold | Preferred | Accepting new patients |
| Healthy Heart Gold 3000 $0 Chronic Care Drugs & Services + Adult Vision & Fitness | HMO · Gold | Preferred | Accepting new patients |
| Healthy Heart Silver 5000 $0 Chronic Care Drugs & Services | HMO · Silver | Preferred | Accepting new patients |
| Healthy Heart Silver 5000 $0 Chronic Care Drugs & Services + Adult Vision & Fitness | HMO · Silver | Preferred | Accepting new patients |
| Low Premium Bronze 10600 $25 Generic Drugs | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Low Premium Bronze 10600 $25 Generic Drugs + Adult Vision & Fitness | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Low Premium Silver 6200 $3 Generic Drugs | HMO · Silver | Preferred | Accepting new patients |
| Low Premium Silver 6200 $3 Generic Drugs + Adult Vision & Fitness | HMO · Silver | Preferred | Accepting new patients |
| Silver 6000 $20 Generic Drugs | HMO · Silver | Preferred | Accepting new patients |
| Silver 6000 $20 Generic Drugs + Adult Vision & Fitness | HMO · Silver | Preferred | 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 Johnna Diaz 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
Johnna Diaz is enrolled to bill Medicare as a Practitioner - Nurse Practitioner .
Bills through: Community Hospitalist Llc
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.
Looking for more Family Nurse Practitioners?
There are 7 other family nurse practitioners in this region.
- Gender: Female
- Address: 1120 East Broad Street Elyria, 44035, OH
- Gender: Female
- Address: 1532 Abbe Road South Elyria, 44035, OH
- Gender: Female
- Address: 20 South 3rd Street Suite 210 Columbus, 43215, OH
- Gender: Female
- Address: 630 East River Street Elyria, 44035, OH
- Gender: Female
- Address: 630 East River Street Elyria, 44035, OH
- Gender: Female
- Address: 18099 Lorain Avenue Suite 445 Cleveland, 44111, OH
- Gender: Female
- Address: 6140 South Broadway Lorain, 44053, OH
Questions & Answers
What conditions does Johnna Diaz treat?
Johnna Diaz provides treatment for Arthritis, Attention-Deficit/Hyperactivity Disorder (ADHD), Child or Adolescent, Fever, Migraine, Women's Health. For the full list see this list.
Does Johnna Diaz accept insurance?
Johnna Diaz is listed in-network for 21 ACA Marketplace (Obamacare/HealthCare.gov) plans from CareSource. See the Marketplace plans section for details.
Where can you meet with Johnna Diaz?
Johnna Diaz's office is located at 21245 Lorain Road in Fairview Park, OH 44126.