Dr. Karla J. Sermeno de Castillo
- Gender: Female
- Sole propriator: Yes
- NPI: 1093294852
Dr. Karla J. Sermeno de Castillo
Endodontist
She is located at 5841 Northwest Loop 410 Suite 110 in San Antonio, TX 78238. Can help patients with the following: Abscessed Tooth, Bad Breath, Loose Tooth, Sensitive Teeth, Teeth Whitening, Traumatic Dental Injury. Her National Provider Identifier (NPI) number is 1093294852. Appointment can be made via the phone number (210) 521-4600. She is affiliated with 1 practices.
Conditions treated
Dr. Karla Judith Sermeno De Castillo, being an endodontist, 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. Karla J. Sermeno de Castillo.
- Abscessed Tooth
- Bad Breath
- Bleeding Gums
- Canker Sore
- Cavity
- Cosmetic Dentistry
- Cracked Tooth
- Dental Bridges
- Dental Crowns and Caps
- Dental Exam and Cleaning
- Dental Fillings and Repairs
- Dental Implants
- Dental Malocclusion
- Dental Plaque
- Dental Sealant
- Dentures
- Edentulism
- Gum Disease / Gingivitis
- Loose Tooth
- Oral Cancer Examination
- Root Canal
- Sensitive Teeth
- Smile Makeover
- Stained Teeth
- Teeth Grinding
- Teeth Whitening
- Temporomandibular Joint Syndrome (TMJ)
- Tongue Problems
- Tooth Extraction
- Tooth Resorption
- Toothache
- Traumatic Dental Injury
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Karla J. Sermeno de Castillo as in-network for the following 2026 plans.
Health plans
Oscar Insurance Company
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 11 plans from Oscar Insurance Company
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Gold Classic Guided Care (8 plan variants) | HMO · Gold | Preferred | Accepting new patients |
| Gold Classic Standard Guided Care (8 plan variants) | HMO · Gold | Preferred | Accepting new patients |
| Gold Simple Diabetes Guided Care (8 plan variants) | HMO · Gold | Preferred | Accepting new patients |
| Gold Simple Guided Care (8 plan variants) | HMO · Gold | Preferred | Accepting new patients |
| Silver Classic Standard Guided Care (8 plan variants) | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple Breathe Easy with Enhanced COPD Benefits Guided Care (8 plan variants) | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple Chronic Care CKM Guided Care (8 plan variants) | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple Diabetes Guided Care (8 plan variants) | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple Guided Care (8 plan variants) | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple PCP Saver Guided Care (8 plan variants) | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple Women's Health with Menopause Benefits Guided Care (8 plan variants) | HMO · Silver | Preferred | Accepting new patients |
WellPoint
Network data as of Sep 10, 2026, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Wellpoint Essential Bronze 6000 Adult Dental/Vision ($0 Virtual PCP+$0 Select Drugs) | HMO · Expanded Bronze | Participating | Accepting new patients |
| Wellpoint Essential Silver 3500 Adult Dental/Vision ($0 Virtual PCP + $0 Select Drugs + Incentives) | HMO · Silver | Participating | 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 |
| BEST Life Essential Value Dental Plan | PPO · Low | In Network | Accepting new patients |
| BEST Life Preferred Dental Plan | PPO · High | In Network | Accepting new patients |
| BEST Life Superior Dental Plan | PPO · High | In Network | Accepting new patients |
Blue Cross and Blue Shield of Texas
Network data as of Jun 19, 2026, as reported by the insurer.
Show all 6 plans from Blue Cross and Blue Shield of Texas
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| BlueCare Dental 1D | PPO · Low | Preferred | Accepting new patients |
| BlueCare Dental 4 Kids℠ 1A | PPO · High | Preferred | Accepting new patients |
| BlueCare Dental 4 Kids℠ 1B | PPO · Low | Preferred | Accepting new patients |
| BlueCare Dental℠ 1A | PPO · High | Preferred | Accepting new patients |
| BlueCare Dental℠ 1B | PPO · Low | Preferred | Accepting new patients |
| BlueCare Dental℠ 1C | PPO · Low | Preferred | Accepting new patients |
DeltaCare USA
Network data as of Sep 12, 2026, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| DeltaCare USA Basic Plan for Families | HMO · Low | Deltacare USA | Accepting new patients |
| DeltaCare USA Preferred Plan for Families | HMO · High | Deltacare USA | Accepting new patients |
Delta Dental PPO
Network data as of Sep 12, 2026, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Delta Dental Individual and Family DPO Basic Plan for Families | PPO · Low | Delta Dental PPO | Accepting new patients |
| Delta Dental Individual and Family DPO Preferred Plan for Families | PPO · High | Delta Dental PPO | Accepting new patients |
| Delta Dental Individual and Family DPO Preventive Plan for Families | PPO · High | Delta Dental PPO | Accepting new patients |
EMI Health
Network data as of Sep 16, 2026, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| EMI Health Advantage | PPO · Low | Preferred | Accepting new patients |
| EMI Health Advantage Co-Pay | PPO · Low | Preferred | Accepting new patients |
| EMI Health Advantage Low | PPO · Low | Preferred | Accepting new patients |
| EMI Health Premier PPO (High) | PPO · High | Preferred | Accepting new patients |
| EMI Health Premier PPO (Low) | 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 |
Renaissance Dental
Network data as of Sep 16, 2026, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Texas Preferred Plan | PPO · Low | Preferred | Accepting new patients |
| Texas Preferred Plan (Pediatric Only) | PPO · Low | Preferred | Accepting new patients |
| Texas Preferred Plus Plan | PPO · High | Preferred | Accepting new patients |
| Texas Preferred Plus Plan (Pediatric Only) | PPO · High | Preferred | Accepting new patients |
| Texas Wellness Essentials Plan | PPO · Low | Preferred | Accepting new patients |
Solstice Healthplans of Texas, Inc.
Network data as of Sep 14, 2026, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| EssentialSmile Texas | EPO · High | Preferred | Accepting new patients |
| Lone Star - Total Care | EPO · High | Preferred | 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 |
|---|---|---|---|
| Lone Star - Smile Now | PPO · Low | Preferred | Accepting new patients |
| Smile Now Texas- No Waiting Period Plan | 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. Karla J. Sermeno de Castillo is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Questions & Answers
What conditions does Dr. Karla Judith Sermeno De Castillo treat?
Dr. Karla Judith Sermeno De Castillo provides treatment for Abscessed Tooth, Bad Breath, Loose Tooth, Sensitive Teeth, Teeth Whitening, Traumatic Dental Injury. For the full list see this list.
Does Dr. Karla Judith Sermeno De Castillo have affiliation with practices?
Dr. Karla Judith Sermeno De Castillo is affiliated with South Austin Microendodontics.
Where can you meet with Dr. Karla Judith Sermeno De Castillo?
Dr. Karla Judith Sermeno De Castillo's office is located at 5841 Northwest Loop 410 Suite 110 in San Antonio, TX 78238.
Does Dr. Karla Judith Sermeno De Castillo accept insurance?
Dr. Karla Judith Sermeno De Castillo is listed in-network for 48 ACA Marketplace (Obamacare/HealthCare.gov) plans from Oscar Insurance Company, WellPoint, BEST Life, Blue Cross and Blue Shield of Texas, DeltaCare USA, Delta Dental PPO, EMI Health, Humana, Renaissance Dental, Solstice Healthplans of Texas, Inc., TRUASSURE INSURANCE COMPANY, UnitedHealthcare. See the Marketplace plans section for details.