Dr. Douglas K. Demille DDS
Dentist
He is located at 319 Colegate Drive in Marietta, OH 45750. Can help patients with the following: Dental Bridges, Dental Emergency, Dental Exam and Cleaning, Dental Malocclusion, Pericoronitis, Teeth Grinding. His National Provider Identifier (NPI) number is 1942648282. Appointment can be made via the phone number (740) 374-7060. He is affiliated with 1 practices.
Conditions treated
Dr. Douglas K. Demille, 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. Douglas K. Demille.
- 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. Douglas K. Demille as in-network for the following 2026 plans.
Health plans
Oscar Health Insurance
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 16 plans from Oscar Health Insurance
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Bronze Classic 4700 | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Classic Standard | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Elite + PCP Saver Plus | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Simple Breathe Easy with Enhanced COPD Benefits | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Simple Chronic Care CKM | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Simple Diabetes | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Gold Classic | HMO · Gold | Preferred | Accepting new patients |
| Gold Classic Standard | HMO · Gold | Preferred | Accepting new patients |
| Gold Elite Saver Plus | HMO · Gold | Preferred | Accepting new patients |
| Silver Classic Standard | HMO · Silver | Preferred | Accepting new patients |
| Silver Elite Saver Plus | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple Breathe Easy with Enhanced COPD Benefits | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple Chronic Care CKM | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple Diabetes | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple PCP Saver | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple Women's Health with Menopause Benefits | HMO · Silver | Preferred | Accepting new patients |
Oscar Insurance Corporation of Ohio
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 16 plans from Oscar Insurance Corporation of Ohio
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Bronze Classic PCP Saver | Cleveland Clinic | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Classic Standard | Cleveland Clinic | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Simple Breathe Easy with Enhanced COPD Benefits | Cleveland Clinic | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Simple Chronic Care CKM | Cleveland Clinic | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Simple Diabetes | Cleveland Clinic | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Simple HSA | Cleveland Clinic | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Gold Classic Standard | Cleveland Clinic | HMO · Gold | Preferred | Accepting new patients |
| Gold Elite Saver Plus | Cleveland Clinic | HMO · Gold | Preferred | Accepting new patients |
| Gold Elite | Cleveland Clinic | HMO · Gold | Preferred | Accepting new patients |
| Silver Classic Standard | Cleveland Clinic | HMO · Silver | Preferred | Accepting new patients |
| Silver Elite Saver Plus | Cleveland Clinic | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple Breathe Easy with Enhanced COPD Benefits | Cleveland Clinic | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple Chronic Care CKM | Cleveland Clinic | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple Diabetes | Cleveland Clinic | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple PCP Saver | Cleveland Clinic | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple Women's Health with Menopause Benefits | Cleveland Clinic | HMO · Silver | Preferred | Accepting new patients |
Dental plans
BEST Life
Network data as of Sep 8, 2026, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| BEST Life Essential Basic Dental Plan | PPO · Low | In Network | Accepting new patients at some locations |
| BEST Life Essential Value Dental Plan | PPO · Low | In Network | Accepting new patients at some locations |
| BEST Life Preferred Dental Plan | PPO · High | In Network | Accepting new patients at some locations |
| BEST Life Superior Dental Plan | PPO · High | In Network | Accepting new patients at some locations |
Delta Dental of Ohio
Network data as of Sep 12, 2026, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Delta Dental Individual Pediatric-Only PPO, EHB Certified | PPO · High | Delta Dental PPO and Delta Dental Premier | Accepting new patients |
| Delta Dental Individual Pediatric-Only PPO, EHB Certified | PPO · Low | Delta Dental PPO and Delta Dental Premier | Accepting new patients |
| Delta Dental Individual PPO Bronze Plan, EHB Certified | PPO · Low | Delta Dental PPO and Delta Dental Premier | Accepting new patients |
| Delta Dental Individual PPO Gold Plan, EHB Certified | PPO · High | Delta Dental PPO and Delta Dental Premier | Accepting new patients |
| Delta Dental Individual PPO Silver Plan, EHB Certified | PPO · High | Delta Dental PPO and Delta Dental Premier | 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 - Low | PPO · Low | Preferred | Not accepting new patients |
TRUASSURE INSURANCE COMPANY
Network data as of Sep 11, 2026, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| TruAssure Basic Adult or Child Dental Plan | PPO · Low | Preferred | Accepting new patients |
| TruAssure Preferred Adult or Child Dental Plan | PPO · High | Preferred | Accepting new patients |
| TruAssure Preventive Dental Plan | PPO · Low | Preferred | Accepting new patients |
UnitedHealthcare
Network data as of Sep 14, 2026, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Smile Now Ohio - No Waiting Period PPO | PPO · Low | 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. Douglas K. Demille 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. Douglas K. Demille 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 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 Dentists?
Out of the 27 dentists in this region, here are 10 randomly selected ones for you to explore.
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- Address: 124 3rd Street Marietta, 45750, OH
- Gender: Male
- Address: 123 3rd Street Marietta, 45750, OH
- Gender: Male
- Address: 319 Colegate Drive Marietta, 45750, OH
- Gender: Male
- Address: 405 2nd Street Marietta, 45750, OH
- Gender: Male
- Address: 506 2nd Street Marietta, 45750, OH
- Gender: Male
- Address: 319 Colegate Drive Marietta, 45750, OH
- Gender: Female
- Address: 1309 Greene Street Marietta, 45750, OH
Questions & Answers
Does Dr. Douglas K. Demille accept insurance?
Dr. Douglas K. Demille is listed in-network for 46 ACA Marketplace (Obamacare/HealthCare.gov) plans from Oscar Health Insurance, Oscar Insurance Corporation of Ohio, BEST Life, Delta Dental of Ohio, Humana, TRUASSURE INSURANCE COMPANY, UnitedHealthcare. See the Marketplace plans section for details.
What conditions does Dr. Douglas K. Demille treat?
Dr. Douglas K. Demille provides treatment for Dental Bridges, Dental Emergency, Dental Exam and Cleaning, Dental Malocclusion, Pericoronitis, Teeth Grinding. For the full list see this list.
Where can you meet with Dr. Douglas K. Demille?
Dr. Douglas K. Demille's office is located at 319 Colegate Drive in Marietta, OH 45750.
Does Dr. Douglas K. Demille have affiliation with practices?
Dr. Douglas K. Demille is affiliated with Family Tree Dental.