Dr. Kristina Zoulas, DDS · South San Francisco
Your South San Francisco Dental Home
We are a dental home to our patients. Our vision is to create long-lasting relationships built on quality care, conservative dentistry, and the time to listen to every person who sits in our chair.
Since 2014
Dr. Zoulas has owned Westborough Dental Care for more than a decade.
14 PPO plans
Accepted in-network — Cigna, Aetna, Blue Shield, Anthem, Humana and more.
See accepted carriersSame-day crowns
CEREC milling means most permanent crowns are placed on a single visit.
See our techComprehensive dentistry under one roof
From routine cleanings to same-day crowns and Invisalign, every service at Westborough Dental Care is delivered with conservative, patient-first care.
Preventative Dentistry
Cleanings, exams, sealants, oral cancer screening — keeping problems away before they start.
Learn moreGeneral Dentistry
Fillings, extractions, root canals, periodontal therapy, laser dentistry, teeth whitening.
Learn moreRestorative Dentistry
Dental implants, bridges, inlays & onlays, same-day crowns milled in-office with CEREC.
Learn moreCosmetic Dentistry
Porcelain crowns, dentures, and Invisalign clear aligners for a confident smile.
Learn moreInvisalign
The invisible way to straighten your teeth without metal wires or brackets — 9 to 15 months avg.
Learn moreDigital Dentistry
Cone Beam CT, iTero & Primescan scanners, CEREC milling, 3D printing — the "no-goop" office.
Learn moreConservative dentistry, modern technology
Dr. Kristina Zoulas has owned Westborough Dental Care since 2014. She adheres to the principles of conservative dentistry: treating fewer patients per day, and spending more time with each person to understand their unique needs.
The office is mercury-free and "green-friendly" — computerized X-rays minimize radiation exposure and eliminate film-processing chemicals, and same-day crown milling means most patients leave with their permanent restoration on the same visit.
Testimonials
What our patients say
“Dr. Zoulas is the BEST dentist I have ever been to! She is so caring and super gentle.”
“The whole staff made me feel at ease. Thank you!”
“Love Dr. Zoulas! She's so incredibly patient, clear, and most importantly truly cares about my care.”
“Excellent, thorough, comfortable care from the entire team — from the front desk to the chair.”
“Very welcoming. Everyone is so kind. No pressure and so willing to work with me.”
“Wow, I have two beautiful front teeth now! Thank you, thank you so much Jordan and Dr. Zoulas.”
In-network with 14 PPO insurance plans
PPO-only — we are not contracted with HMO dental plans. Click any carrier for plan-specific details.
Aetna
PPO plans — in-network.
Learn more
Blue Shield of California
PPO plans — in-network.
Learn more
Cigna
DPPO in-network. DPPO Advantage is out-of-network.
Learn more
Anthem
Anthem 300 + Anthem Complete in-network.
Learn more
Humana
PPO plans — in-network.
Learn moreSee all 14 PPO plans
Full list — major carriers, national PPOs, and networks.
Browse all carriersThree ways to pay
Insurance, transparent UCR fees, or our monthly membership plan — pick the path that fits.
Accepted Insurance
PPO-only — in-network with 14 dental insurance carriers.
- You pay your plan's deductible and co-insurance
- Cigna, Aetna, Blue Shield, Anthem, Humana and more
- Out-of-network plans: we file claims; your plan reimburses you
Published UCR Fees
Transparent fees for common procedures — no surprises.
- Every common CDT code listed with our published fee
- Free written treatment plans with cost estimates
- Same UCR fee whether you pay direct or through insurance
Membership Plan
For patients without dental insurance.
- $45/month adult — 2 cleanings, 2 exams, X-rays, fluoride
- One emergency visit per year included
- Member discount on additional treatment
How it works
Your first visit
About 60 to 90 minutes total. Comfortable clothes, your insurance card, and a list of medications are all you need.
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01
Step 1
1. Paperwork + welcome
Brief medical history; we verify your insurance benefits up front.
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02
Step 2
2. Comprehensive exam
Dr. Zoulas walks through teeth, gums, bite, soft tissues, and oral cancer screening.
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03
Step 3
3. Digital X-rays
A complete digital series — lower radiation than film, no chemicals.
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04
Step 4
4. Cleaning
Hygienist cleaning if time and gum-health allow — otherwise scheduled as a follow-up.
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05
Step 5
5. Treatment plan
A written breakdown of what we found, costs, and insurance coverage — yours to take home.
Dr. Zoulas explains it on video
Short patient-education videos from Dr. Zoulas — the questions patients ask most often.
Favorite dental products
Toothbrushes, toothpaste, floss — what Dr. Zoulas recommends at home.
Watch the video
Same-day crowns explained
How the PrimeScan + CEREC workflow replaces traditional impression material.
Watch the video
Preventative dentistry
What preventative care looks like at our office and at home.
Watch the videoReady to book your visit?
New patients are welcome. Book online through Oryx or Zocdoc, or call (650) 873-6681 — we usually answer on the first ring.