Dr. Sienella Thomaszadeh, DDS

DentistryFemaleAge 38

Dentistry

Dr. Sienella Thomaszadeh, DDS is a Dentistry Practitioner in Atascadero, CA. Her office accepts new patients.

Dr. Sienella Thomaszadeh, DDS

Mark Romanelli, DDS

4555 El Camino Real Ste D Atascadero, CA 93422 ()
Accepting new patients

Accepting new patients

Healthgrades Provider Compare™

Quickly compare more Dentistry Practitioners in your area

At a Glance

  • Explains Conditions Well
    Patients said this doctor explains conditions well. See reviews
  • Trustworthy
    Patients said this doctor is trustworthy. See reviews

Experience and Background Checks

Experience
Background

Background Check

No malpractice claims found for California
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
Learn more about background checks

Experience Check

Check if Dr. Thomaszadeh treats your condition or procedure

Dr. Thomaszadeh's conditions and procedures:

  • Broken Tooth
  • Cavity
  • Chipped Tooth
  • Composite Fillings
  • Dental Bonding
  • Dental Bridge
  • Dental Crown
  • Dental Disorders
  • Dental Inlays
  • Dental Onlay
  • Denture Repair
  • Gingivitis
  • Grinding of Teeth
  • Gum Disease
  • Loose Teeth
  • Lower Dentures
  • Misaligned Teeth
  • Non-Surgical Gum Treatment
  • Porcelain Veneers
  • Restoration of Dental Implants
  • Root Canal
  • Root Planing
  • Simple Tooth Extractions
  • Teeth Extraction
  • Teeth Scaling
  • Teeth Whitening
  • Tempormandibular Joint Pain
  • TMJ
  • Tooth Abrasion
  • Tooth Abscess
  • Tooth Attrition
  • Tooth Damage
  • Tooth Decay
  • Tooth Demineralization
  • Tooth Discoloration
  • Tooth Loss
  • Toothache
  • Ultrasonic Dental Cleaning
  • Upper Dentures

Insurance Check

Search for your insurance provider

Dr. Thomaszadeh accepts

Accepted insurance can change. Please double-check when making an appointment.

(805) 461-1772

Dr. Thomaszadeh accepts the following insurance:

Aetna
Ameritas
Ameritas PPO
Assurant Health
DHA
DHA Premier
Blue Cross Blue Shield
Blue Cross Blue Shield of California
Blue Shield of California
Cigna
Coventry Health Care
Delta Dental
Delta Dental PPO
Delta Dental Premier
Dental Network of America
Dental Network of America DPPO
DenteMax
Dominion Insurance
Dental PPO
First Health (Coventry Health Care)
Guardian
DentalGuard Preferred
Health Net
Humana
Humana PPO
MetLife
MultiPlan
Principal Financial Group
Dental PPO
Total Dental Administrators PPO
Total Dental Administrators PPO PPO
United Concordia
National Fee-for-Service
UnitedHealthCare
Dental

Dr. Thomaszadeh's Reviews

Likelihood to recommend Dr. Thomaszadeh

5.0

Based on 40 ratings

5 Stars
97.5%
(39)
4 Stars
2.5%
(1)
3 Stars
0%
(0)
2 Stars
0%
(0)
1 Star
0%
(0)
healthgrades logo

Leave a review

How likely are you to recommend
Dr. Thomaszadeh
What went well
No reviews yet
What could be improved
No reviews yet

Your trust is our top concern.

We strive to keep the reviews trustworthy, honest & fair.

We monitor all reviews to ensure they comply with our guidelines and don’t include personal information, profanity, libel, defamation, harassment, obscenity or fraud.

All reviews are confirmed and audited before publication, and community members have the ability to flag inappropriate content for further review by our team.

Doctors can not pay for good reviews, nor can they pay to have negative reviews removed.

Any reviews that are deemed fraudulent or violate our guidelines will be removed immediately.

RecentHighestLowestMost Helpful
Reply
Dr. Thomaszadeh and her entire staff are always friendly and make me feel at ease. Today I had a filling replaced, and I swear the shot in the gums (which I absolutely dread) was the easiest, least painful one I've ever had. Every visit is a pleasant experience, which I know is an odd thing to say about a trip to the dentist, but it's true. I highly recommend Dr. Thomaszadeh.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Roni D – Feb 17, 2022
×Post a ResponseAre you Dr. Sienella Thomaszadeh, DDS?
Reply
Excellent care with attention to detail! X-rays done quickly, cleaning was painless. Highly recommend this office and staff
What went well
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Julie C. Fallon – Jan 22, 2022
×Post a ResponseAre you Dr. Sienella Thomaszadeh, DDS?
Reply
Dr. Thomaszeda and the staff are great. My experience was great and the treatment was painless and professionally done.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Dec 23, 2021
×Post a ResponseAre you Dr. Sienella Thomaszadeh, DDS?
Reply
Was a great visit… cleaning was done without no pain very good hygienist
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Don Snyder – Oct 27, 2021
×Post a ResponseAre you Dr. Sienella Thomaszadeh, DDS?
Reply
Dr. T. Is outstanding. Truly state-of-the-art and very patient-centric.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Aug 26, 2021
×Post a ResponseAre you Dr. Sienella Thomaszadeh, DDS?
Reply
I had a crown replaced and she worked hard with my other doctor to ensure I could save my tooth and be safe with all care as I am pregnant.
What went well
  • Staff friendliness
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Aug 05, 2021
×Post a ResponseAre you Dr. Sienella Thomaszadeh, DDS?
Reply
Very happy with Dr Thomaszeda and staff.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Deborah – Apr 23, 2021
×Post a ResponseAre you Dr. Sienella Thomaszadeh, DDS?
Reply
Good job. Thorough and timely. I felt great when we were finished.
What went well
  • Appointment scheduling
  • Wait times
  • Listened & answered questions
What could be improved
No results
Helpful
Tony merrill – Apr 23, 2021
×Post a ResponseAre you Dr. Sienella Thomaszadeh, DDS?
Reply
Such an amazing team! Super friendly and explain everything! Highly recommend this office for a dental visit!
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Apr 16, 2021
×Post a ResponseAre you Dr. Sienella Thomaszadeh, DDS?
Reply
The doctor is the best at explaining what is needed. She is always very conscientious about the outcome. She and her staff are the best at accommodating your needs.
What went well
  • Staff friendliness
  • Appointment wasn't rushed
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Susan – Mar 30, 2021
×Post a ResponseAre you Dr. Sienella Thomaszadeh, DDS?
Reply
???????? I am 100% HAPPY
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Jan 21, 2021
×Post a ResponseAre you Dr. Sienella Thomaszadeh, DDS?
Reply
Professional & caring staff. Dr. Thomaszadeh is wonderful as well. I highly recommend this office from simple cleaning to cavities & crowns.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Dawn Scherer Daner – Jan 15, 2021
×Post a ResponseAre you Dr. Sienella Thomaszadeh, DDS?
Reply
As always everyone took great care of me and were very informative. Great care.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Michelle Clemmensen – Jan 08, 2021
×Post a ResponseAre you Dr. Sienella Thomaszadeh, DDS?
Reply
My husband and I both had appointments with the dental hygienist in December. BethAnne was our go to young lady for our visits. She was polite, professional, and very thorough. She gave my husband and I suggestions on ways to improve our dental health. She was fantastic. The office is following Covid guidelines, using technology to effectively communicate with us prior to our appointment and upon arrival (text ,email and phone). The front desk staff were friendly and welcoming. We’re lucky to be patients with Dr. Thomaszadeh office.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Tony and Lee Villa – Dec 19, 2020
×Post a ResponseAre you Dr. Sienella Thomaszadeh, DDS?
Reply
I had a great experience at my first visit and highly recommend Dr. Thomaszadeh and her staff. They were very friendly and efficient. I was seen on time and out in under 30 minutes. Dr. Thomaszadeh had big shoes to fill after my life long dentist Dr. Romanelli retired, but she met the challenge and I am glad to have a stellar new dentist.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Kasey Urman – Nov 06, 2020
×Post a ResponseAre you Dr. Sienella Thomaszadeh, DDS?
Reply
Great office with kind and helpful employees!!
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Nov 05, 2020
×Post a ResponseAre you Dr. Sienella Thomaszadeh, DDS?
Reply
I really appreciated their sill at evaluating and attending to my issue. Everything was clearly explained.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Oct 17, 2020
×Post a ResponseAre you Dr. Sienella Thomaszadeh, DDS?
Reply
The visit was great. 1. It was on time. I hate waiting so this is important. 2. The texts that I received before my appointment were helpful in reminding me of my date and time. 3. I felt very comfortable with all the precautions they took for the covid19. The online questionnaire was easy and to the point and I was able to fill it out prior to my appointment. I felt safe by the actions they took in the office too. They had air purifiers, hand sanitizer and the staff was decked out in the appropriate attire. I highly recommend Dr. Thomaszadeh and her staff. Beth, who cleaned my teeth was great too.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Ken Danko – Aug 14, 2020
×Post a ResponseAre you Dr. Sienella Thomaszadeh, DDS?
Reply
Dr. Thomaszadeh and staff were very professional and took time to answer questions. I never felt rushed. The entire office complied with CDC guidelines for Covid . I felt very safe in their office. Highly recommend them....
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Anna – Aug 05, 2020
×Post a ResponseAre you Dr. Sienella Thomaszadeh, DDS?
Reply
Awesome as usual
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Jim davis – Aug 04, 2020
×Post a ResponseAre you Dr. Sienella Thomaszadeh, DDS?

Leave a review

How was your experience with Dr. Thomaszadeh?

Is this your profile?

Respond to reviews, add information, and reach more patients. Claiming is free and only takes a minute.

Claim your profile

About Me

Care Philosophy

Establishing a real connection with patients and creating an environment of trust and comfort is what I strive for with every patient. Converting the anxious...Read more

Biography

Dr. Thomaszadeh grew up in the San Fernando Valley of CA where she began her career in the field of dentistry as a dental assistant in 1999 and continued...Read more

Practice Areas

  • Dentistry

Education

NY U Med Ctr
Medical School

Memberships & Affiliations

  • American Dental Association, Member

Frequently Asked Questions

Is Dr. Sienella Thomaszadeh, DDS accepting new patients?

Dr. Sienella Thomaszadeh, DDS generally accepts new patients on Healthgrades. You can see Dr. Thomaszadeh's profile to make an appointment.

Does Dr. Sienella Thomaszadeh, DDS accept my insurance?

Use the Healthgrades insurance check to verify if Dr. Thomaszadeh accepts your insurance.

What are Dr. Sienella Thomaszadeh, DDS's top areas of care?

Dr. Thomaszadeh frequently treats Broken Tooth, Cavity, and Chipped Tooth. See all procedures and conditions Dr. Thomaszadeh treats.

Where is Dr. Sienella Thomaszadeh, DDS's office located?

Dr. Thomaszadeh's office is located at 4555 El Camino Real Ste D, Atascadero, CA 93422. Find other locations and directions on Healthgrades.

Does Dr. Sienella Thomaszadeh, DDS offer telehealth services?

Dr. Thomaszadeh has not yet indicated whether they offer telehealth services. Please contact the office to check for availability/eligibility.

How can I make an appointment with Dr. Sienella Thomaszadeh, DDS?

Find contact information here to make an appointment.

Locations

Mark Romanelli, DDS

Mark Romanelli, DDS4555 El Camino Real Ste D Atascadero, CA 93422
1