Dr. Sina Tebi, MD

Endocrinology, Diabetes & Metabolism*MaleAge 43

Endocrinology, Diabetes & Metabolism*

Dr. Sina Tebi, MD is a diabetes & metabolism endocrinologist in Newhall, CA and has over 15 years of experience in the medical field. Dr. Tebi has extensive experience in Diabetes & Glucose Monitoring, Thyroid Disorders, and Osteoporosis & Screening. He graduated from University of Ca in 2009. He is affiliated with Henry Mayo Newhall Hospital. He is not accepting new patients.

Dr. Sina Tebi, MD

Center for Endocrinology, Diabetes and Metabolic Disorders

23928 Lyons Ave Ste 204 Newhall, CA 91321
Telehealth availableTelehealth services available
Telehealth availableTelehealth services available

At a Glance

  • Area of Expertise
    Dr. Tebi specializes in the area of Diabetes, Metabolism & Endocrinology. See board certifications
  • Offers Telehealth
    This doctor offers telehealth appointments. Call the office to schedule an appointment.
  • Hospital Satisfaction
    Patients said they were highly satisfied at this doctor's hospital. See hospitals
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Dr. Tebi's Reviews

Likelihood to recommend Dr. Tebi

3.3
32 ratings, 22 with a written review
5 star
53%
53%
4 star
3%
3%
3 star
3%
3%
2 star
0%
0%
1 star
41%
41%

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Tebi is an awful endocrinologist. He does not listen to patients, and ignores concerns and physical proof of issues. He gives general advice, that does not pertain to the issues at hand, and then hand waves the patient out to go into DKA. I question his medical history, and if he actually studied diabetes at all. Obvious issues had already arisen, and he just ignored them. If the patient had followed his outgoing advice, then they would have gone back into DKA within a few days. He did not even have the gall to meet the patient in person, nor did he give any instructions on how to use the new insulin the was prescribed. The new insulin worked differently than the previous one the patient was using. Overall an awful experience with this endocrinologist.
What went well
No results
What could be improved
  • Office environment
  • Difficult to schedule appointment
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Staff wasn't friendly
  • Appointment was rushed
  • Didn't trust the provider's decisions
  • Long wait times
1 other person found this helpful
Helpful
Mar 10, 2025
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Office staff is a joke - unhelpful, condescending…. You will NEVER get someone on the phone. This doctor clearly could not care less about his patients if this is how he allows his staff to run the show. All his appointments are at least two months out and he seems to like phone appointments- which he is always late to place.
What went well
No results
What could be improved
  • Office environment
  • Difficult to schedule appointment
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Staff wasn't friendly
  • Appointment was rushed
  • Didn't trust the provider's decisions
  • Long wait times
1 other person found this helpful
Helpful
Pissed Off Cowboy – Jan 25, 2025
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Dr. Tebi is awesome
I love Dr Tebi, but his front desk and staff very unprofessional and very curt.
What went well
No results
What could be improved
  • Difficult to schedule appointment
  • Staff wasn't friendly
Helpful
Aug 06, 2024
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Unreliable Doctor
Telehealth
3 times that I wasted in waiting for this doctor to see me via telehealth and he couldn't even do that. For a year I was diagnosed with Type 2 and turned out I was Type 1. He never saw me but a PA did and all the doctor had to do was call me and walk me through this process. I would not trust him!
What went well
  • Appointment scheduling
  • Staff friendliness
What could be improved
  • I didn't feel respected
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Appointment was rushed
  • Didn't trust the provider's decisions
  • Long wait times
3 others found this helpful
Helpful
Sandra – Nov 16, 2023
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Worst Dr Ive ever experienced. Unprofessional, unorganized and has no compassion. I had complications from a standard thryoid biopsy. Ive been sick for 3 months and Dr Tebi has been incredibly rude, disorganized and shows no urgency for my illness which resulted in his procedure! Theres no direct # to this office which I find very suspicious for any medical practice!
What went well
No results
What could be improved
  • Office environment
  • Difficult to schedule appointment
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Staff wasn't friendly
  • Appointment was rushed
  • Didn't trust the provider's decisions
8 others found this helpful
Helpful
Nm – Jun 05, 2023
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Exceptionally Sharp Specialist
I have been seeing Dr. Tebi since 2020 for my autoimmune disease, and since then my symptoms are under control and I can manage a normal life. Dr. Tebi is knowledgeable, sharp, intelligent, and caring. He takes his time to compare my test results with the previous ones and explain thoroughly what is going on, in a language that I can understand. Dr. Tebi patiently answers my questions and addresses all my concerns in a way that I know I am in good hands. Thank you
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 other person found this helpful
Helpful
May 16, 2023
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The best......he LISTENS to you
Dr. Tebi is very professional and caring. Always explains every lab result in depth and asks if I have any concerns. He's the first doctor that I've had that really listens.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Wait times
What could be improved
No results
Helpful
Susan D Petrie – Mar 31, 2023
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Competent and Friendly Endocrine Doctor
I started going to him in May 2022. It's been seven months and my condition improved. He helped me understand my Hormone issues and gave me hope with immediate care and a long-term treatment plan that I felt comfortable with immediately. Dr. Tebi listens well and answered all my questions in a caring manner and is never dismissive of my questioning like many busy doctors can be. Appointment scheduling is always prompt and convenient for me. Staff friendliness varies depending on how busy they get. Wait times are minimal. Appointment wasn't rushed. I trust Dr. Tebi's decisions.
What went well
No results
What could be improved
No results
3 others found this helpful
Helpful
James M. – Jan 11, 2023
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Exceptional!
We came from out of state to see Dr. Tibi . He took time and explained things about my thyroid disease that no doctor had ever done. I am so fortunate to have found Dr. Tibi.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 other person found this helpful
Helpful
Kerry Dashnaw – Oct 19, 2022
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Great Dr. Thorough and thoughtful.
He helped me understand my Thyroid issues and gave me hope with immediate care and a treatment plan.
What went well
  • Office environment
  • Appointment scheduling
  • Explained conditions well
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
1 other person found this helpful
Helpful
Sep 30, 2022
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After our insurance changed, we made the best decision by choosing Dr. Tebi. My husband and I went to him twice. We both are diabetic. He is treating us with fewer meds and advising us to change our diet. He is very humble and listens to his patients. Soon he will be our family Doctor. My daughters will be going to him too. We like the staff too, I don't know why people are complaining about them.
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
1 other person found this helpful
Helpful
Poonam Parashar – Jul 30, 2021
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Been on hold over 16 minutes … answered said 4 people before me. I’m a potential new patient… doesn’t make u look good
What went well
No results
What could be improved
  • Difficult to schedule appointment
  • Long wait times
7 others found this helpful
Helpful
Jul 07, 2021
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Very good dr, thoroughly listens to patients. Will take care of my whole family's needs
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Staff friendliness
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Jun 16, 2021
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Good
What went well
No results
What could be improved
No results
Helpful
N – Jun 15, 2021
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I have been going to Dr. Tebi for close to a year now and find him an excellent Endo doctor. He is far more knowledgeable than my last three doctors combined. Listens to my concerns and actually acts on them. I've had the best labs in over 8 years. Entire staff is courteous and professional. Wait time is minimal. Very Pleased.
What went well
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 other person found this helpful
Helpful
Jason Penn – Jun 02, 2021
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Both my wife & I have been going to Dr Tebi for a couple of years. He's a top notch endocrinologist & we wouldn't think of going to a different doctor. He really knows his stuff. However, his staff needs a lot of improvement. Since Covid I've called, and always having to leave a voice message, requesting information & can't get anyone to respond. I call the pharmacy & use their automatic refill system & it takes Dr Tebi's staff forever to respond, many times having to send multiple requests or having to call the office & leave the information. Then I get a 30-day prescription instead of a 90-day which saves money. YES... I will finally say something to him on my next visit. One star is for his staff. 5 stars for Dr Tebi.
What went well
  • Listened & answered questions
  • Explained conditions well
  • Appointment wasn't rushed
What could be improved
No results
6 others found this helpful
Helpful
May 08, 2021
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Great communication!
What went well
  • Listened & answered questions
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Marie, – Jul 21, 2020
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He is the BEST.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
1 other person found this helpful
Helpful
Dilsiri Dassanaike in Canyon Country, CA – Oct 01, 2018
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Dr. Tebi is one of the greatest doctors I have encountered. Not only was he the only one who was able to look into my illness and manage my illness with patience but he also took the time to explain and educate me. He even drew pictures to help me understand my condition. In addition, his manners and professionalism is top notch. His staff followed through to make sure I have my lab results and called in to see how I was doing. He is by far the best doctor I have seen.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
2 others found this helpful
Helpful
Sarah G in Los Angeles, CA – Jun 25, 2018
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He is an awesome doctor. He’s a good listener. He’s professional and knowledgeable.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
3 others found this helpful
Helpful
Catherine in Santa Clarita – Oct 19, 2017
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About Me

care philosophy

I am proud to be part of the Optum family of primary care doctors, specialists, and care teams focused on providing care for people ages 65+. At Optum, my team and I help you reach your personal health goals. We focus on your total well-being while...read more
  • Endocrinology, Diabetes & Metabolism

  • Internal Medicine

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • Los Angeles County Harbor - Ucla Medical Center

    Fellowship Hospital
  • University Of California, Irvine School Of Medicine

    Residency Hospital
  • University Of California Irvine

    Internship Hospital
  • University Of Ca

    Medical School, 2009
American Board of Medical Specialties®
American Board of Internal Medicine®
Diabetes, Metabolism & Endocrinology
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.
  • English

  • Armenian

  • Persian

Locations

Center for Endocrinology, Diabetes and Metabolic Disorders

Cedmd23928 Lyons Ave Ste 204 Newhall, CA 91321
1

Benevolence Industries Inc

Benevolence Industries Inc3631 Crenshaw Blvd Los Angeles, CA 90016
2

Practice

Office23938 Lyons Ave # 204 Newhall, CA 91321
3

Affiliated Hospitals

  • Henry Mayo Newhall Hospital

    23845 McBean Pkwy
    Valencia, CA 91355

    How patients felt about the care they received at this hospital.

    85%
    Patients said they were given information about recovering at home

    1% higher than the national average

    77%
    Patients said that doctors always listened to them and explained things well

    1% higher than the national average

    View all patient feedback
Learn more about how Healthgrades measures Hospital Quality