Dr. Mark W. Hartzler
- Gender: Male
- Sole propriator: No
- NPI: 1215287271
Dr. Mark W. Hartzler DMD
Dentist
He is located at 22 Exchange Street in Gorham, NH 03581. Can help patients with the following: Bleeding Gums, Cosmetic Dentistry, Dental Exam and Cleaning, Dental Implants, Gum Disease / Gingivitis, Laser. His National Provider Identifier (NPI) number is 1215287271. Appointment can be made via the phone number (603) 466-5015. He is affiliated with 1 practices.
Conditions treated
Dr. Mark William Hartzler, 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. Mark W. Hartzler.
- 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. Mark W. Hartzler as in-network for the following 2026 plans.
Dental plans
Northeast Delta Dental
Network data as of Sep 12, 2026, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Delta Dental Family High Plan | PPO · High | Delta Dental PPO and Delta Dental Premier | Accepting new patients |
| Delta Dental Family Low Plan | PPO · Low | Delta Dental PPO and Delta Dental Premier | Accepting new patients |
| Delta Dental Pediatric High Plan | PPO · High | Delta Dental PPO and Delta Dental Premier | Accepting new patients |
| Delta Dental Pediatric Low Plan | PPO · Low | Delta Dental PPO and Delta Dental Premier | 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. Mark W. Hartzler 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 Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.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. Mark W. Hartzler 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.
Payments received
Drug payment
| Zimmer Biomet | $179 |
| Straumann | $88 |
| Dentsply | $46 |
Other
| Food and Beverage | $259 |
| Travel and Lodging | $55 |
Looking for more Dentists?
There are 6 other dentists in this region.
- Gender: Male
- Address: 22 Exchange Street Gorham, 3581, NH
- Gender: Male
- Address: 22 Exchange Street Gorham, 3581, NH
- Gender: Male
- Address: 22 Exchange Street Gorham, 3581, NH
- Gender: Male
- Address: 22 Exchange Street Gorham, 3581, NH
- Gender: Male
- Address: 18 Park Street Gorham, 3581, NH
- Gender: Female
- Address: 22 Exchange Street Gorham, 3581, NH
Questions & Answers
What conditions does Dr. Mark William Hartzler treat?
Dr. Mark William Hartzler provides treatment for Bleeding Gums, Cosmetic Dentistry, Dental Exam and Cleaning, Dental Implants, Gum Disease / Gingivitis, Laser. For the full list see this list.
Where can you meet with Dr. Mark William Hartzler?
Dr. Mark William Hartzler's office is located at 22 Exchange Street in Gorham, NH 03581.
Does Dr. Mark William Hartzler have affiliation with practices?
Dr. Mark William Hartzler is affiliated with North Country Dental.
Does Dr. Mark William Hartzler accept insurance?
Dr. Mark William Hartzler is listed in-network for 4 ACA Marketplace (Obamacare/HealthCare.gov) plans from Northeast Delta Dental. See the Marketplace plans section for details.