Dr. Juanita M. Fonseca
- Gender: Female
- Sole propriator: Yes
- NPI: 1548381288
Dr. Juanita M. Fonseca D.D.S.
Orthodontist
She is located at 278 Lafayette Road Building E in Portsmouth, NH 03801. Can help patients with the following: Dental Implants, Dentin Hypersensitivity, Invisalign, Pericoronitis, Stained Teeth, Toothache. Her National Provider Identifier (NPI) number is 1548381288. Appointment can be made via the phone number (603) 436-7787. She is affiliated with 1 practices.
Conditions treated
Dr. Juanita Margo Fonseca, being an orthodontist, 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. Juanita M. Fonseca.
- Abscessed Tooth
- Bleeding Gums
- Braces
- Cavity
- Cosmetic Dentistry
- Dental Bridges
- Dental Crowns and Caps
- Dental Emergency
- Dental Exam and Cleaning
- Dental Fillings and Repairs
- Dental Implants
- Dental Malocclusion
- Dentin Hypersensitivity
- Dentures
- Gum Disease / Gingivitis
- Invisalign
- Laser
- Lingual Braces
- Loose Tooth
- Oral Cancer Examination
- Orthodontic Retainer
- Palatal Expansion
- Pericoronitis
- Smile Makeover
- Stained Teeth
- Teeth Grinding
- Teeth Whitening
- Temporomandibular Joint Syndrome (TMJ)
- Tooth Extraction
- Toothache
- Traumatic Dental Injury
- Veneers
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Juanita M. Fonseca 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. Juanita M. Fonseca is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Payments received
Drug payment
| GlaxoSmithKline | $24 |
Other
| Food and Beverage | $24 |
Additional Specialities
- Dentist
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Questions & Answers
Does Dr. Juanita Margo Fonseca accept insurance?
Dr. Juanita Margo Fonseca is listed in-network for 4 ACA Marketplace (Obamacare/HealthCare.gov) plans from Northeast Delta Dental. See the Marketplace plans section for details.
Does Dr. Juanita Margo Fonseca have affiliation with practices?
Dr. Juanita Margo Fonseca is affiliated with Stephen E Ananian DMD.
Where can you meet with Dr. Juanita Margo Fonseca?
Dr. Juanita Margo Fonseca's office is located at 278 Lafayette Road Building E in Portsmouth, NH 03801.
What conditions does Dr. Juanita Margo Fonseca treat?
Dr. Juanita Margo Fonseca provides treatment for Dental Implants, Dentin Hypersensitivity, Invisalign, Pericoronitis, Stained Teeth, Toothache. For the full list see this list.