About

Jonathan S. Sagum is board certified in internal medicine and specializes in endocrinology and diabetes. Training: • Medical Education: Doctor of Medicine - University of Santo Tomas (1998) • Residency: Internal Medicine - Presence Saint Francis Hospital (2009) • Fellowship: Endocrinology Diabetes & Metabolism - Southern Illinois University School of Medicine (2015)

Locations



Expertise

Education

  • Presence Saint Francis Hospital

    Residency, Internal Medicine, 2009

  • Southern Illinois University School of Medicine

    Fellowship, Endocrinology Diabetes & Metabolism, 2015

  • University of Santo Tomas

    Medical Education, Doctor of Medicine, 1998


Age Groups Seen

Age Groups Seen
Adults
Languages
English
Gender
Male

Reviews

4.90 out of 5 4.9 of 5 stars — 303 Ratings, 78 Reviews

The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.

provider listened carefully 4.90 out of 5 (4.9)
provider gave easy to understand instruction 4.80 out of 5 (4.8)
provider knew important medical history 4.90 out of 5 (4.9)
provider showed concern 4.90 out of 5 (4.9)
provider spent enough time with you 4.90 out of 5 (4.9)
provider rating 4.90 out of 5 (4.9)
provider explained things clearly 4.90 out of 5 (4.9)
likelihood of recommending this provider 4.90 out of 5 (4.9)
provider included you in decisions 4.90 out of 5 (4.9)
provider showed respect for what you said 4.90 out of 5 (4.9)
provider discussed treatment options 4.90 out of 5 (4.9)

5.00 out of 5 5.0 out of 5

Reviewed on 07/02/2026

Very good.

5.00 out of 5 5.0 out of 5

Reviewed on 07/01/2026

Dr.Sagum is a gem. Very kind, very caring, very knowledgeable.

5.00 out of 5 5.0 out of 5

Reviewed on 06/26/2026

The Dr made sure I had all of concerns addressed.

5.00 out of 5 5.0 out of 5

Reviewed on 06/22/2026

Dr. Sagum is fabulous. He always answers my questions and asks how I feel about the changes in treatment. Dr, sagum is a wonderful doctor.

5.00 out of 5 5.0 out of 5

Reviewed on 06/08/2026

This was an excellent annual review with my Dr. I appreciated our discussion of pertinent matters.

5.00 out of 5 5.0 out of 5

Reviewed on 06/04/2026

Good experience

5.00 out of 5 5.0 out of 5

Reviewed on 05/29/2026

Dr. Sagum is an excellent Endocrinologist.

5.00 out of 5 5.0 out of 5

Reviewed on 05/20/2026

Dr. Sagum is a very good physician.

5.00 out of 5 5.0 out of 5

Reviewed on 05/18/2026

I adore Dr. Saginaw! He's extremely knowledgeable and is ALWAYS on top of things. So glad I was recommended to see him!

5.00 out of 5 5.0 out of 5

Reviewed on 05/01/2026

Clearly provided information. Initiated questions to get my input.

5.00 out of 5 5.0 out of 5

Reviewed on 04/24/2026

Very good service

5.00 out of 5 5.0 out of 5

Reviewed on 04/23/2026

Amazing

5.00 out of 5 5.0 out of 5

Reviewed on 03/25/2026

Very good experience

5.00 out of 5 5.0 out of 5

Reviewed on 03/21/2026

Outstanding in explaining conditions & anticipated symptoms

5.00 out of 5 5.0 out of 5

Reviewed on 02/23/2026

Dr. Sagum always answers my questions and provides reassurance with there is uncertainty.

5.00 out of 5 5.0 out of 5

Reviewed on 02/21/2026

I would 10 out 10 recommend him to others

5.00 out of 5 5.0 out of 5

Reviewed on 02/07/2026

I felt like he listened to my needs and delivered exceptional results

5.00 out of 5 5.0 out of 5

Reviewed on 02/05/2026

I'm very grateful for the support and treatment center

5.00 out of 5 5.0 out of 5

Reviewed on 02/01/2026

All good!

5.00 out of 5 5.0 out of 5

Reviewed on 01/31/2026

Dr Sagum is the best endocrinologist in the city and Greg, his phlebotomist, is awesome. Dr Sagum always listens, gives good advice and follows through on his word.

5.00 out of 5 5.0 out of 5

Reviewed on 01/28/2026

Very efficient

5.00 out of 5 5.0 out of 5

Reviewed on 01/24/2026

Thank you!

5.00 out of 5 5.0 out of 5

Reviewed on 01/23/2026

He went above and beyond to provide me with information that I needed. He made sure I had my next appts scheduled. He called me personally the next day to assure I understood what I needed to do and to thank me.

5.00 out of 5 5.0 out of 5

Reviewed on 01/21/2026

Great doctor

5.00 out of 5 5.0 out of 5

Reviewed on 01/21/2026

Very good visit

5.00 out of 5 5.0 out of 5

Reviewed on 01/17/2026

A well good provider.

5.00 out of 5 5.0 out of 5

Reviewed on 01/16/2026

Dr. Sagum is always so nice and polite. And always explains everything. Is nurse was awesome!

5.00 out of 5 5.0 out of 5

Reviewed on 01/14/2026

I like this office very much

5.00 out of 5 5.0 out of 5

Reviewed on 01/07/2026

Knowledgeable and caring.

5.00 out of 5 5.0 out of 5

Reviewed on 01/05/2026

Excellent provider and staff!

5.00 out of 5 5.0 out of 5

Reviewed on 01/02/2026

Dr. Sagun was very smart and professional and also very caring and friendly. I had an unusual condition and he dug in to it very deeply to help diagnose me.

5.00 out of 5 5.0 out of 5

Reviewed on 12/15/2025

Very pleased with the quality of care received

5.00 out of 5 5.0 out of 5

Reviewed on 12/13/2025

Very knowledgeable, friendly and professional. Couldn't ask for for more.

5.00 out of 5 5.0 out of 5

Reviewed on 12/11/2025

Dr. Sagum is a very good Dr. He listens when I have a problem with my meds...and we fix it together... I would not want to switch Drs.

5.00 out of 5 5.0 out of 5

Reviewed on 12/07/2025

He is very caring and loving provider.I am totally satisfied about his treatment

5.00 out of 5 5.0 out of 5

Reviewed on 11/26/2025

Best provider

5.00 out of 5 5.0 out of 5

Reviewed on 11/22/2025

He's great!

5.00 out of 5 5.0 out of 5

Reviewed on 11/22/2025

Dr Sagum is a kind man. He was very respectful, thorough, and is sure to answer any questions I may have. I never feel that he or his staff are rushed during my appointments. I have their full attention during a visit.

5.00 out of 5 5.0 out of 5

Reviewed on 11/22/2025

He was amazing he was informative he gave details about medical care and medications I've seen several endocrinologists in the past and he is hands down the best I have ever worked with I'm very thankful that he is my doctor for my diabetes care it took years for me to find a doctor as good as he is !

5.00 out of 5 5.0 out of 5

Reviewed on 11/21/2025

Awesome doctor!

5.00 out of 5 5.0 out of 5

Reviewed on 11/15/2025

Wonderful Doctor and staf

5.00 out of 5 5.0 out of 5

Reviewed on 11/08/2025

Dr Sagum very proffional and very nice I you prefer him to everybody

5.00 out of 5 5.0 out of 5

Reviewed on 11/05/2025

Dr. Sagum is a wonderful doctor. He always listens to my concerns and answers my questions. He reviews all my test results and makes good decisions based on all information.

5.00 out of 5 5.0 out of 5

Reviewed on 11/01/2025

Dr Sagum is always very thorough

5.00 out of 5 5.0 out of 5

Reviewed on 10/29/2025

Dr Sagum and staff provide exceptional care.

5.00 out of 5 5.0 out of 5

Reviewed on 10/29/2025

This was my first time with this provider. He was patient, listen to my questions, explained things very easily, so I understood them. I would recommend him to others.

5.00 out of 5 5.0 out of 5

Reviewed on 10/21/2025

I am 82 years old and have hearing aids and the Dr made sure I heard all he was telling me. He and his office staff were very helpful and polite.

5.00 out of 5 5.0 out of 5

Reviewed on 10/20/2025

Dr. Sagum and his staff were and have been the utmost professional people in the treatment of my medical care.

5.00 out of 5 5.0 out of 5

Reviewed on 10/18/2025

Good physician. Good office staff. I would highly recommend them to family.

5.00 out of 5 5.0 out of 5

Reviewed on 10/18/2025

Great

5.00 out of 5 5.0 out of 5

Reviewed on 10/14/2025

Doctor Sagum is a great doctor and he cares about my health thank you

5.00 out of 5 5.0 out of 5

Reviewed on 10/04/2025

Dr Sagum has always taken care of my medical needs. He is very professional. He genuinely cares and it shows. His entire staff work well together. I am very happy to have him and his staff as my medical team.

5.00 out of 5 5.0 out of 5

Reviewed on 10/03/2025

Love him!

5.00 out of 5 5.0 out of 5

Reviewed on 10/02/2025

Very thorough

5.00 out of 5 5.0 out of 5

Reviewed on 09/29/2025

Good visit

5.00 out of 5 5.0 out of 5

Reviewed on 09/27/2025

Dr. Sagum is a wonderful doctor. I see him once a year so that he can order a blood test - checking thyroid levels. If the levels aren't 'correct,' he will change the dosage levels.

5.00 out of 5 5.0 out of 5

Reviewed on 09/22/2025

Dr Sagum is excellent. He listens & is knowledgeable about my case. Sarah who was the nurse during my appointment was excellent & made me feel good.

5.00 out of 5 5.0 out of 5

Reviewed on 09/22/2025

He went over my medications and my test results in detail.

5.00 out of 5 5.0 out of 5

Reviewed on 09/20/2025

Good service

5.00 out of 5 5.0 out of 5

Reviewed on 09/12/2025

Muy buena la atenci?n

5.00 out of 5 5.0 out of 5

Reviewed on 09/08/2025

Dr gave shots done a great job with my knees.

5.00 out of 5 5.0 out of 5

Reviewed on 09/06/2025

Dr. Sagum is an excellent care provider!

5.00 out of 5 5.0 out of 5

Reviewed on 09/04/2025

He's very knowledgeable and he knows what he's doing. I'm glad I choose him.

5.00 out of 5 5.0 out of 5

Reviewed on 09/03/2025

Excellent Dr. Great staff

5.00 out of 5 5.0 out of 5

Reviewed on 08/30/2025

A good provider.I

5.00 out of 5 5.0 out of 5

Reviewed on 08/25/2025

Love Dr Sagum. He is well informed about my status and always willing to answer any questions I have!

5.00 out of 5 5.0 out of 5

Reviewed on 08/23/2025

Really like doctor Sagum takes time to explain and let's you have input

5.00 out of 5 5.0 out of 5

Reviewed on 08/22/2025

Constance, the person I spoke to for scheduling the appointment was very nice and efficient. Dr. Sagum was polite, friendly and explained/answered any questions or concerns I had.

5.00 out of 5 5.0 out of 5

Reviewed on 08/16/2025

I believe Doctor Sagum is an outstanding Doctor

5.00 out of 5 5.0 out of 5

Reviewed on 08/14/2025

He is very knowledgeable and polite.

5.00 out of 5 5.0 out of 5

Reviewed on 08/13/2025

Dr Sagum is always so pleasant and he always great about answering my chart questions.

5.00 out of 5 5.0 out of 5

Reviewed on 08/09/2025

Dr.Sagum was incredible. Very knowledgeable and thorough 10/10 always

5.00 out of 5 5.0 out of 5

Reviewed on 08/09/2025

Kind. Very smart. Friendly

5.00 out of 5 5.0 out of 5

Reviewed on 08/08/2025

Very professional and informative

5.00 out of 5 5.0 out of 5

Reviewed on 08/07/2025

Nothing they are so kind and very very polite I'm great full how nice they all are to me

5.00 out of 5 5.0 out of 5

Reviewed on 08/07/2025

Excellent doctor

5.00 out of 5 5.0 out of 5

Reviewed on 08/06/2025

I believe Dr. Sagum truly cares about my health!

5.00 out of 5 5.0 out of 5

Reviewed on 08/04/2025

Dr Sagum greeted me in the waiting room and took me back and performed my weight and blood pressure check as well as my appointment. When I asked him about his nurse he told me he had a new patient and she was busy. He is so kind, thorough, and human. I absolutely had the best experience with him. Endocrinology is a very difficult area and he really breaks it down into manageable conversations. A++++ would highly recommend him!


Insurance

  • Aetna
  • Aetna Better Health
  • Aetna Medicare Advantage
  • Ambetter from MHS
  • Ambetter from WellCare of Kentucky
  • Anthem
  • Anthem Kentucky Medicaid
  • Anthem MediBlue HMO/PPO
  • Anthem Pathway
  • Anthem Pathway Transition
  • CareSource Indiana Medicaid
  • CareSource Marketplace Kentucky and Indiana
  • Cigna
  • CorVel
  • Coventry
  • Encore
  • Essence
  • First Health Group Corp. (First Health)
  • UofL Health – Frazier Rehabilitation Institute
  • HealthSmart
  • Hosparus
  • Humana Medicare
  • Humana Medicaid
  • Indiana Medicaid
  • Indiana Medicare
  • Indiana Health Network
  • Kentucky Medicaid
  • Kentucky Medicare
  • MDwise
  • MHS
  • Molina Healthcare
  • MultiPlan
  • Passport Health Plan Kentucky MCO
  • Passport Marketplace
  • Provider Net/OMCA
  • Sagamore
  • Signature Advantage
  • SIHO
  • TRICARE Humana Military
  • United Healthcare
  • United Healthcare Community Plan Indiana and Kentucky
  • United Healthcare Medicare Advantage
  • Veterans Affairs (VA)
  • WellCare
  • WellCare of Kentucky Medicaid (Kentucky MCO)
  • WellCare Medicare
  • Wellpath
  • Workers’ Compensation
Need Care Now?
Immediate Care

For non-life threatening injury or illness. X-ray and rapid testing available (all ages).

Reserve Your Spot
eCare

Virtual visits for minor illnesses or health concerns (2 years and older).

Start an Online Visit
Norton Prompt Care

For sick visits, sports/ camp physicals, vaccine and more (12 months and older).

Choose an Appointment