Endocrinologist and Medical Weight Loss Doctor in Chicago
Dr. Mahwash Siddiqui, MD, DABOM, FACE
Dr. Siddiqui is triple board certified in Internal Medicine, Endocrinology and Obesity Medicine. She is Division Head of Endocrinology at Sinai Chicago and treats weight, diabetes, thyroid and hormone conditions, in English and Urdu.
- FDA-approved GLP-1 care
- Hormone-first workup
- English and Urdu
Credentials
Dr. Mahwash Fatima Siddiqui, MD, DABOM, FACE
- Triple Board CertifiedInternal Medicine, Endocrinology and Obesity Medicine
- Fellow, American Association of Clinical EndocrinologyFACE
- Division Head of EndocrinologySinai Chicago
- Clinical Associate ProfessorRosalind Franklin University of Medicine and Science
- Endocrinology Fellowship Site DirectorRosalind Franklin University at Sinai Chicago
- English and UrduCare for Chicago's communities
- 3xBoard certified
- Division HeadEndocrinology, Sinai Chicago
- Associate ProfessorRosalind Franklin University
- FACEFellow, AACE
- 30+Research papers and abstracts
A hormone specialist who treats the whole person
An endocrinologist is a doctor trained to treat the glands and hormones that control your metabolism, weight, energy, blood sugar and bones.
Dr. Mahwash Siddiqui is triple board certified in Internal Medicine, Endocrinology, Diabetes and Metabolism, and Obesity Medicine, and is a Fellow of the American Association of Clinical Endocrinology. She is Division Head of Endocrinology at Sinai Chicago, where she leads the Medical Weight Wellness Program, and Clinical Associate Professor of Endocrinology at Rosalind Franklin University of Medicine and Science.
She trained at Chicago Medical School, where she was Chief Medical Resident, and at UT Southwestern Medical Center, where she was Chief Endocrinology Fellow.
- Listens first, explains clearly, plans with you
- Uses current guidelines and FDA-approved treatments
- Treats weight, diabetes and hormones in one plan
Medical weight loss, led by an endocrinologist
Most weight loss clinics in Chicago start with a shot. Dr. Siddiqui, who is board certified in Obesity Medicine, starts with you: your hormones, your labs, your history and your goals. Then she builds a plan that may include today's most effective FDA-approved medicines.
- Thyroid, insulin resistance, PCOS and medication review
- Slow, safe dosing with real follow-up
- A plan to keep the weight off
Tirzepatide
Zepbound, Mounjaro
About 21 percent average weight loss at the top dose in SURMOUNT-1.
Weekly injectionSemaglutide
Wegovy, Ozempic
About 15 percent average weight loss in STEP 1, plus proven heart benefits.
Daily pillWegovy Pill
Oral semaglutide
FDA approved in December 2025. About 14 percent average loss in OASIS 4.
Daily pillFoundayo
Orforglipron
FDA approved in April 2026. Taken any time, no food or water rules.
Specialized endocrine care in Chicago
From blood sugar to bone health, Dr. Siddiqui treats the full range of hormone and metabolic conditions.
Medical Weight Loss
GLP-1 and dual-agonist medicine, labs and a long-term plan built around your hormones.
Learn moreDiabetes Care
Type 1, type 2 and prediabetes care with GLP-1s, SGLT2s, insulin and CGMs.
Learn moreThyroid Care
Hypothyroidism, hyperthyroidism, Hashimoto's, Graves', nodules and thyroid cancer follow-up.
Learn moreHormone Conditions
PCOS, low testosterone, insulin resistance and metabolic health.
Learn moreBone Health
Bone density review, fracture risk scoring and bone-building treatment.
Learn morePituitary and Adrenal
Adrenal nodules, cortisol problems, aldosteronism and pituitary tumors.
Learn moreWhy see an endocrinologist for weight loss?
Many places now offer weight loss shots. Here is what a board-certified endocrinologist adds.
With Dr. Siddiqui
- Board certified in Obesity Medicine and Endocrinology
- Tests for thyroid disease, insulin resistance, PCOS and cortisol problems
- FDA-approved medicines from licensed pharmacies
- Adjusts diabetes and blood pressure medicines as you lose weight
- Protects muscle and bone and plans for maintenance
What to watch for elsewhere
- No physician exam or lab work before starting
- Compounded products the FDA has warned about
- Same plan for everyone, no hormone workup
- Little follow-up once the prescription is sent
- No plan for what happens when you stop
Your first steps
Call Sinai Chicago
Call (773) 884-9000 to request a visit with Dr. Siddiqui.
First visit
A full review of your history, medicines, symptoms and goals.
Testing
Lab work and, when needed, imaging chosen for your situation.
Your plan
Clear treatment and follow-up, adjusted as you make progress.
Affiliations, training and certification
Honored for patient care and teaching
Co-Chair, Host Committee and CME Chair
DOGANA Annual Retreat, Dow Graduates Association of North America.
APPNA Award of Excellence
Presented at the APPNA Spring Meeting in Chicago by the Association of Physicians of Pakistani Descent of North America.
Chair, Annual Meeting
Pakistani-Descent Physician Society (PDPS).
Clear answers to common questions
Ozempic vs Wegovy vs Zepbound: What Is the Difference?
Three famous names, two medicines. Here is how Ozempic, Wegovy and Zepbound compare, in plain English.
How Much Weight Can You Lose on Semaglutide?
What the clinical trials show, what a realistic timeline looks like, and what helps people do better.
GLP-1 Side Effects and How to Manage Them
Most GLP-1 side effects are mild and fade over time. Here is what to expect and what helps.
Frequently asked questions
What does an endocrinologist do?
An endocrinologist is a doctor who treats hormone and metabolism problems, including diabetes, thyroid disease, obesity, osteoporosis, PCOS, low testosterone and pituitary and adrenal conditions.
Is Dr. Mahwash Siddiqui board certified?
Yes. Dr. Siddiqui is triple board certified: in Internal Medicine and in Endocrinology, Diabetes and Metabolism by the American Board of Internal Medicine, and in Obesity Medicine by the American Board of Obesity Medicine. She is also a Fellow of the American Association of Clinical Endocrinology (FACE).
Does Dr. Siddiqui offer medical weight loss in Chicago?
Yes. Dr. Siddiqui is board certified in Obesity Medicine and leads the Medical Weight Wellness Program at Sinai Chicago. Care includes a hormone workup, FDA-approved medicines such as Wegovy, Zepbound and GLP-1 pills when appropriate, and regular follow-up.
Where does Dr. Siddiqui see patients?
Dr. Siddiqui practices with Sinai Chicago. Her listed office is at 2701 W 68th St, Chicago, IL 60629.
What languages does Dr. Siddiqui speak?
Dr. Siddiqui sees patients in English and Urdu.
How do I request an appointment?
Call Sinai Chicago at (773) 884-9000 to request a visit with Dr. Siddiqui.
Ready to feel better?
Whether it is weight, blood sugar, thyroid or hormones, call Sinai Chicago to request a visit. Care in English and Urdu.