Dr. William N. Castle D.D.S.
Dentist
He is located at 79 North Cooper Street in Memphis, TN 38104. Can help patients with the following: Cosmetic Dentistry, Dental Bridges, Dental Crowns and Caps, Dental Malocclusion, Oral Cancer Examination, Pericoronitis. His National Provider Identifier (NPI) number is 1699892919. Appointment can be made via the phone number (901) 685-5008. He is affiliated with 1 practices.
Conditions treated
Dr. William Nelson Castle, being an dentist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. William N. Castle.
- Bleeding Gums
- Cosmetic Dentistry
- Dental Bridges
- Dental Crowns and Caps
- Dental Emergency
- Dental Exam and Cleaning
- Dental Implants
- Dental Malocclusion
- Dentin Hypersensitivity
- Dentures
- Gum Disease / Gingivitis
- Invisalign
- Laser
- Oral Cancer Examination
- Pericoronitis
- Teeth Grinding
- Teeth Whitening
- Veneers
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. William N. Castle as in-network for the following 2026 plans.
Dental plans
Cigna Healthcare
Network data as of Sep 15, 2026, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Cigna Dental Family + Pediatric | PPO · Low | Preferred | Accepting new patients |
| Cigna Dental Pediatric | PPO · Low | Preferred | Accepting new patients |
Humana
Network data as of Sep 13, 2026, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Humana Dental Smart Choice - High | PPO · High | Preferred | Accepting new patients |
| Humana Dental Smart Choice - Lite | PPO · Low | Preferred | Accepting new patients |
| Humana Dental Smart Choice - Low | PPO · Low | Preferred | Accepting new patients |
UnitedHealthcare
Network data as of Sep 8, 2026, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Smile Now Tennessee - No Waiting Period PPO | PPO · High | 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 Dr. William N. Castle 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 Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.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
Dr. William N. Castle is enrolled to bill Medicare as a Order And Referring Only - Dentist (also registered under: Practitioner - Dentist) .
Based on Medicare's public enrollment records as of Sep 29, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| Tulsa Dental Products | $17 |
| Dash Medical Gloves | $10 |
Other
| Food and Beverage | $17 |
| Other | $10 |
Looking for more Dentists?
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- Address: 1030 Jefferson Avenue Memphis, 38104, TN
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- Address: Suite 1225 1331 Union Avenue Memphis, 38104, TN
- Gender: Male
- Address: 1030 Jefferson Avenue Memphis, 38104, TN
- Gender: Male
- Address: 1030 Jefferson Avenue Memphis, 38104, TN
- Gender: Male
- Address: 1030 Jefferson Avenue Memphis, 38104, TN
- Gender: Male
- Address: 1030 Jefferson Avenue Memphis, 38104, TN
Questions & Answers
What conditions does Dr. William Nelson Castle treat?
Dr. William Nelson Castle provides treatment for Cosmetic Dentistry, Dental Bridges, Dental Crowns and Caps, Dental Malocclusion, Oral Cancer Examination, Pericoronitis. For the full list see this list.
Does Dr. William Nelson Castle accept insurance?
Dr. William Nelson Castle is listed in-network for 6 ACA Marketplace (Obamacare/HealthCare.gov) plans from Cigna Healthcare, Humana, UnitedHealthcare. See the Marketplace plans section for details.
Where can you meet with Dr. William Nelson Castle?
Dr. William Nelson Castle's office is located at 79 North Cooper Street in Memphis, TN 38104.
Does Dr. William Nelson Castle have affiliation with practices?
Dr. William Nelson Castle is affiliated with William N Castle DDS.