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Dr. Elizabeth Grethen, MD

Dr. Elizabeth Grethen, MD

Internal Medicine*
15+ years of experience

Dr. Elizabeth Grethen, MD is an internist in Carmel, IN and has over 15 years of experience in the medical field. Dr. Grethen has extensive experience in Thyroid Disorders and Osteoporosis & Screening. She graduated from Loyola University- Stritch School of Medicine in 2006. She is affiliated with medical facilities Ascension St. Vincent Carmel and Ascension St. Vincent Hospital-Indianapolis. She is not accepting new patients.

4 Star Rating
Based on 60 reviews 4 Star Rating (60 reviews)

Ascension Medical Group Pendleton Primary Care

188 W Carmel Dr Carmel, IN 46032
Telehealth available
Patient Favorite Award

Dr. Grethen is a patient favorite Internist

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Dr. Grethen's Reviews

Likelihood to recommend Dr. Grethen

4.0
60 ratings, 43 with a written review
5 star
70%
70%
4 star
5%
5%
3 star
3%
3%
2 star
2%
2%
1 star
20%
20%

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Don't use her portal
She is great, listens, explains a plan of action but communicating with her or her staff after the appointment is impossible. It took her two months to answer my portal question. I need to get labs but Quest didn't get the order. I can't get anyone in her office to answer the portal or call me back! Frustrated beyond belief!
What went well
  • I felt respected
  • Trusted the provider's decisions
What could be improved
  • Difficult to schedule appointment
1 other person found this helpful
Helpful
frustrated – Apr 12, 2024
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Fantastic
This doctor goes above and beyond to care for her patients. Even when dealing with staffing issues and other challenges within the medical system I can tell she cares a lot and wants the best health outcome for everyone she interacts with.
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
Helpful
-R – Jan 20, 2024
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I would recommend Dr. Grethen
I thought the office staff were very nice and responsive. I liked Dr. Grethen and there was a lot to keep track of. I tried to take notes but forgot some of the details. When I went to the portal to view the notes from my visit I didn’t get answers to some of my questions. I left a message with Amber on Friday to clarify some info and also sent a message through the portal. My visit was on 10/19. I still have not heard back after leaving several voicemails on 10/20 and today, 10/23. So I have had difficulty communicating .
What went well
  • I felt respected
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
  • Difficult to schedule appointment
1 other person found this helpful
Helpful
Ellen Williams – Oct 24, 2023
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Very knowledgeable and professional.
What went well
  • I felt respected
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
  • Difficult to schedule appointment
1 other person found this helpful
Helpful
James – Sep 23, 2023
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Top notch care
Dr. Grethen is phenomenal. She is always so thorough, kind, and knowledgeable. She takes time to explain issues in great detail. I have been seeing her for 8 years for my thyroid condition, and I will not see anyone else. Hands down the best doctor I have ever seen.
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
Sarah Small – Sep 13, 2023
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Listened to my problems
She was very caring, and observant.
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
Helpful
Aug 29, 2023
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Treatment
After being treated unsuccessfully by other endocrinologists following surgery for thyroid cancer in 2005, the primary physician sent me to Dr. Grethan. Since then she has treated me carefully and with concern. I have a lot of respect for her, both with her kindness and medical knowledge. Thank you Dr. G!
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
Helpful
Judy Isley – Aug 18, 2023
We are glad we were able to help! -Ascension St.... Read More
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She was very pleasant and down to earth
I think her soft approach in responding to questions..a very down to earth manner making the client feel note worthy of a response.. willingness to take time in answering questions..I like that when visiting a doctor
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
Helpful
Cecelia Kiley – Jul 19, 2023
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Dr. Grethen is very knowledgeable about my case regarding thyroid issues. She uses her expertise to guide me for treatment.
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
Helpful
Jul 19, 2023
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She is a very caring person and will go 100% for her patient would refer her hands down love her would not change a thing
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
Helpful
Sonya Gray Davis – Jul 05, 2023
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First Rate Physician
Dr Grethen is very knowledgeable and current in her field, is very personable and professional as a physician and strikes me as an authentic, concerned, kind, positive, and engaged physician.
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
Helpful
Chris – Jun 28, 2023
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She’s the best
From the check in to the welcoming nurse to the Dr. It was a great experience and Dr. Grethen listened to my concerns and made me feel comfortable and her advice and recommendations made me feel like she was a friend and genuinely cared about my health. So yes she is the best
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
Helpful
May 24, 2023
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Very professional, thorough, and kind
She took the necessary time to determine my insulin needs and ozempic to try to treat my insulin resistance.
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
Helpful
May 06, 2023
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Dr Grethen is very knowledgeable and offers directions into what she thinks will help but is not pushy. Let me think about my options which I like. She is very thorough and likes to be sure she is going down the right path for treatment, which in my case required lab work. I myself like that.
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
Mar 11, 2023
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So understanding
Dr Grethen was fabulous. She spent a lot of time with me a was very thorough. I would recommend her highly
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
Helpful
Cheryl Levine – Mar 07, 2023
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Educational visit
Dr. Grethen listened and answered my list of questions. She gave me great ideas of our to better understand and treat my diabetes. She has always been helpful, but this visit even more so.
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
Mar 04, 2023
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Dr Gretchen explained things to me and helped to ease my mind about what is going on with me. She was encouraging and thorough in my exam and making certain that I understood her diagnosis.
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
Helpful
Feb 03, 2023
Our care team aims to deliver high quality... Read More
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The best communicator
Dr Grethen has been my doctor for 10 years as I have been diagnosed with osteoporosis. Through her my bone density has improved, my meds are carefully monitored, and she thinks through decisions with me regarding meds. She is just the best listener. She takes time. Never seems rushed. Very responsive when I use the patient portal. I wish all my doctors wre as good as she is
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
Nov 01, 2022
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Discussed Libre 2 information. Dr. G happy with my progress. Discussed lab results-made determinations about 2 OTC drugs presently taking. Discussed problems with recurring OTI’s. Discussed 2 RX’s-decided to continue them until next visit in 4 months. Dr. G advised me to contact Urology of Indiana Dr. to give them go ahead for surgery regarding Vaginal Prolapse-make this a priority. Very thorough appointment with all my questions answered. Very pleased with my time spent with her.
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
Helpful
Margaret Reiter – Oct 26, 2022
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Celebrate!
Always gives each patient the necessary time needed per visit so she might be behind on appointment schedule. She's worth the wait! Big Celebration, my Diabetic Neuropathy in my Feet has been resolved... Nothing like feeling cold tile getting out of the shower through the soles of your feet again...
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
Helpful
PKSage – Oct 26, 2022
So glad to hear your positive feedback! Thank you... Read More
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About Me

care philosophy

At Impact Endocrinology, Dr. Grethen approaches every patient with compassion and care, prioritizing their health and well-being through personalized, accessible healthcare. Dr. Grethen believes in fostering a strong patient-doctor relationship,...read more

biography

Dr. Grethen is a double board certified physician specializing in endocrinology, diabetes and metabolism. She cares for patients with conditions such as diabetes, thyroid disorders, osteoporosis, calcium-related disorders, adrenal and pituitary...read more
  • 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.

  • Indiana University

    Fellowship Hospital, 2011
  • Indiana University

    Residency Hospital, 2009
  • Indiana University

    Internship Hospital, 2007
  • Loyola University- Stritch School Of Medicine

    Medical School, 2006
  • Cornell University, Ithaca, Ny

    Undergraduate School, 2002
American Board of Medical Specialties®
American Board of Internal Medicine®
Diabetes, Metabolism & Endocrinology
Internal Medicine
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.
Patient Favorite Award

Dr. Grethen is a patient favorite Internist

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    Locations

    Ascension Medical Group Pendleton Primary Care

    Impact Endocrinology LLC188 W Carmel Dr Carmel, IN 46032
    1
    • Call
    • Fax
    • Hours
      • Mon: 8:30am - 4:30pm
      • Tue: 8:30am - 4:30pm
      • Wed: 8:30am - 4:30pm
      • Thu: closed
      • Fri: 1:00pm - 4:30pm
      • Sat: closed
      • Sun: closed
    • Directions