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Dr. Yoojin Kim Pak, MD

Accepting New Patients

(304 Ratings)

Specializes in: Adult Endocrinology

Rosalind Franklin University of Medicine and Science, Chicago Medical School (2008)

Professional interests include: polycystic ovary syndrome (PCOS), diabetes, parathyroid disease, and more.

430 WARRENVILLE ROAD
Lisle, IL 60532

(630) 469-9200

Dr. Yoojin Kim Pak, MD is an endocrinologist in Lisle, IL specializing in adult endocrinology. She graduated from Rosalind Franklin University of Medicine and Science, Chicago Medical School in 2008 and has 16 years of experience. Dr. Yoojin Kim Pak, MD is affiliated with Duly Health and Care and DUPAGE MEDICAL GROUP LTD.

Office Locations

Address:

430 WARRENVILLE ROAD
Lisle, IL 60532

Some issues Dr. Yoojin Kim Pak, MD can help you with:

Polycystic Ovary Syndrome (PCOS)

Polycystic ovarian syndrome is a common endocrine disorder that causes symptoms such as acne, facial hair, and weight gain. It is often diagnosed when patients experience problems getting pregnant, because PCOS can interfere with ovulation. There is no cure for PCOS, but there are effective treatments that can lessen the severity of the symptoms.

Despite the name, not everyone with polycystic ovarian syndrome develops cysts on their ovaries. It is also possible to have ovarian cysts without having PCOS. The symptoms of polycystic ovarian syndrome are actually related to insulin resistance, a condition where the insulin made by the body is not effectively recognized by the cells. This causes the pancreas to release higher levels of insulin in order to keep blood sugar levels stable, and the excess insulin interferes with hormone production in the pituitary and ovaries, causing the PCOS symptoms.

The symptoms of PCOS include:

Weight gain
Acne
Facial or body hair
Thinning head hair
Missing or irregular periods
Infertility

PCOS is a syndrome, which means that if patients have PCOS, they might not have each and every symptom. Even a few of them might be enough to have physicians check for polycystic ovarian syndrome. A doctor might perform an exam and order blood tests to measure hormone levels.

Treatment for PCOS may include:

Insulin sensitizers, which help the body use insulin more effectively, lowering hormone levels. The most commonly used insulin sensitizer is metformin.
Weight loss. Being overweight does not cause PCOS, and PCOS can make losing weight difficult. Still, weight loss can improve symptoms for many women.
Birth control pills to regulate menstruation and sometimes reduce symptoms such as acne.
Fertility medications, especially medications to stimulate ovulation such as clomiphene.
Anti-androgen medications, which work to treat symptoms such as acne and facial hair.
Low-carb diets, which work similarly to insulin sensitizers to lower hormone levels and help reduce weight.
Ovarian drilling or resectioning, surgical procedures sometimes performed if infertility is a persistent problem. These procedures open up the wall of the ovary to temporarily make ovulation more likely.

Polycystic ovarian syndrome is one of the most common endocrine disorders affecting women. Left untreated, it can increase the risk of diabetes, heart disease, and certain cancers. Fortunately there are many good treatment options available.

Thyroid Problems

Thyroid problems are a group of conditions that alter hormone regulation and metabolism. The thyroid is a small, butterfly-shaped gland located in the lower neck, just below the Adam's apple (laryngeal prominence) and larynx (voice box). Despite its small size, the thyroid has an outsized effect on the body by regulating hormones that control metabolism. Metabolism is the body's process of converting consumed food into fuel to power the entire body. Heart rate, weight, cholesterol, body temperature, and even physical growth and development are all affected by the metabolism.

When the thyroid malfunctions, the body is unable to properly process and allocate energy. Thyroid problems, such as hyperthyroidism (overactive thyroid) and hypothyroidism (underactive thyroid), cause irregular metabolism. In some cases, the body produces antibodies that attack the thyroid cells for unknown reasons. The damaged thyroid responds by releasing either too little or too much T3 and T4 thyroid hormones. Thyroid malfunctions may also arise from genetic causes or iodine deficiency. Thyroid problems may include:

Hashimoto's thyroiditis, an autoimmune disease that causes hypothyroidism
Graves' disease, an autoimmune disease that causes hyperthyroidism
Goiter
Thyroid nodule
Thyroid cancer

Hashimoto's is the leading cause of hypothyroidism, which is when the thyroid does not produce enough hormones to stimulate adequate metabolism. The condition is diagnosed by blood tests that measure TSH (thyroid stimulating hormone) and detect Hashimoto's antibodies. Symptoms of hypothyroidism include sluggish metabolism, inflammation, fatigue, weight gain, brittle hair, dry skin, and sensitivity to cold. To supplement impaired thyroid function, patients with Hashimoto's are typically prescribed synthetic thyroid hormone pills. Such patients may need to consume synthetic thyroids for the rest of their lives. Other treatments may include dietary changes, such as the avoidance of certain foods and medication to reduce inflammation. Frequent blood tests can inform patients if their TSH levels are within a normal range.

Grave's disease is most frequently the cause of hyperthyroidism, which is when the thyroid produces too many hormones, overstimulating one's metabolism. The condition is also diagnosed by blood tests that measure TSH and detect Grave's antibodies. Elevated heart rate, high blood pressure, sweating, bulging eyes, and weight loss are common symptoms of hyperthyroidism. Treatments for hyperthyroidism include oral radioactive iodine, which slowly shrinks the thyroid, slowing the production of excess thyroid hormone. Other anti-thyroid medications such as methimazole (Tapazole) also reduce the production of thyroid hormones. Blood pressure medications known as beta blockers can ease the increased heart rate caused by hyperthyroidism. If treatments are unsuccessful, patients may be prescribed a thyroidectomy, or surgery to remove part or all of the thyroid. Some patients with hyperthyroidism may require ophthalmological (eye medicine) treatments such as eye drops, prednisone, and surgery to reduce eye swelling and bulging.

Untreated thyroid disorders frequently lead to goiters or thyroid nodules. A thyroid goiter is a large lump that can be felt near the base of the neck and is made of swollen thyroid tissue or nodules (excess cell growth). Nodules and goiters are diagnosed by CT scan or ultrasound. Obstructive goiters can cause pain, coughing, and abnormal breathing. The most common cause of goiters is hyperthyroidism (overactive thyroid). However, Hashimoto's is also known to cause goiters or nodules. Goiters develop from continued damage from antibodies to the thyroid over time. At times, a goiter can result from a cancerous thyroid tumor. Most goiters and nodules are themselves benign.

The exact causes of thyroid cancer are unknown. People who develop thyroid cancer may or may not have another thyroid problem such as Hashimoto's or Grave's disease. Symptoms of thyroid cancer include a nodule that can be felt on the neck, hoarseness, difficulty swallowing, swelling in the neck, and neck and throat pain. CT and MRI scans are used to diagnose thyroid cancer. There are four types of thyroid cancer which vary in intensity. Thyroidectomy (thyroid removal surgery) is usually prescribed to treat thyroid cancer.

Thyroid problems are often long-term conditions that require some form of treatment. With regular monitoring and medication, many people with thyroid problems are able to lead active and fulfilling lives.

blood draw	53
diabetes management	17
doctor visit	58
hospital care	30
inpatient care	30
lab tests	3
preventive care	15

**Gender**
Male	39
Female	46

**Ethnicity**
Non-Hispanic White	70
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	58
From 75 to 84	0
85 and over	0
Less than 65	0

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	41
Depression	25
Chronic Kidney Disease	28
Asthma	0
Osteoperosis	14
Atrial Fibrilation	14
Heart Failure	20
Chronic Obstructive Pulmonary Disease	15
Diabetes	58
Dementia	0
Cancer	0

**Gender**
Male	121
Female	140

**Ethnicity**
Non-Hispanic White	224
Black	12
Hispanic	11
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	153
From 75 to 84	62
85 and over	20
Less than 65	26

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	52
Depression	27
Chronic Kidney Disease	41
Asthma	12
Osteoperosis	13
Atrial Fibrilation	23
Heart Failure	32
Chronic Obstructive Pulmonary Disease	19
Diabetes	58
Dementia	12
Cancer	13

blood draw	314
diabetes management	227
doctor visit	433
hospital care	175
inpatient care	175
lab tests	695
preventive care	255
thyroid function tests	313
vaccines	10

**Gender**
Male	260
Female	366

**Ethnicity**
Non-Hispanic White	536
Black	0
Hispanic	28
Asian	24
Other	0
Native American	0

**Age**
From 65 to 74	348
From 75 to 84	160
85 and over	48
Less than 65	70

Hypertension	75
High Cholesterol	74
Stroke	8
Ischemic Heart Disease	50
Depression	24
Chronic Kidney Disease	43
Asthma	14
Osteoperosis	18
Atrial Fibrilation	21
Heart Failure	28
Chronic Obstructive Pulmonary Disease	17
Diabetes	60
Dementia	8
Cancer	12

aspiration	16
blood draw	323
diabetes management	210
diagnostic procedures	16
doctor visit	443
hospital care	306
image guided procedures	16
inpatient care	306
lab tests	931
minimally invasive procedures	16
minor procedures	16
preventive care	269
thyroid function tests	437
vaccines	13

**Gender**
Male	146
Female	218

**Ethnicity**
Non-Hispanic White	304
Black	0
Hispanic	16
Asian	20
Other	0
Native American	0

**Age**
From 65 to 74	201
From 75 to 84	92
85 and over	32
Less than 65	39

Hypertension	74
High Cholesterol	72
Stroke	5
Ischemic Heart Disease	46
Depression	25
Chronic Kidney Disease	56
Asthma	18
Osteoperosis	14
Atrial Fibrilation	24
Heart Failure	28
Chronic Obstructive Pulmonary Disease	18
Diabetes	62
Dementia	9
Cancer	12

blood draw	323
diabetes management	240
doctor visit	504
hospital care	250
inpatient care	250
lab tests	1020
preventive care	324
thyroid function tests	380
vaccines	15

**Gender**
Male	148
Female	229

**Ethnicity**
Non-Hispanic White	321
Black	0
Hispanic	17
Asian	17
Other	0
Native American	0

**Age**
From 65 to 74	208
From 75 to 84	114
85 and over	22
Less than 65	33

Hypertension	73
High Cholesterol	65
Stroke	7
Ischemic Heart Disease	44
Depression	24
Chronic Kidney Disease	59
Asthma	6
Osteoperosis	18
Atrial Fibrilation	20
Heart Failure	27
Chronic Obstructive Pulmonary Disease	13
Diabetes	62
Dementia	13
Cancer	12

blood draw	344
diabetes management	257
doctor visit	489
hospital care	257
inpatient care	257
lab tests	1011
preventive care	349
thyroid function tests	326
vaccines	20

**Gender**
Male	150
Female	251

**Ethnicity**
Non-Hispanic White	341
Black	0
Hispanic	19
Asian	19
Other	0
Native American	0

**Age**
From 65 to 74	212
From 75 to 84	118
85 and over	26
Less than 65	45

Hypertension	72
High Cholesterol	71
Stroke	8
Ischemic Heart Disease	41
Depression	27
Chronic Kidney Disease	61
Asthma	7
Osteoperosis	18
Atrial Fibrilation	18
Heart Failure	24
Chronic Obstructive Pulmonary Disease	14
Diabetes	58
Dementia	11
Cancer	12

blood draw	293
diabetes management	242
doctor visit	483
hospital care	227
inpatient care	227
lab tests	950
preventive care	320
thyroid function tests	280
vaccines	32

**Gender**
Male	158
Female	253

**Ethnicity**
Non-Hispanic White	342
Black	15
Hispanic	19
Asian	19
Other	16
Native American	0

**Age**
From 65 to 74	224
From 75 to 84	123
85 and over	27
Less than 65	37

Hypertension	73
High Cholesterol	71
Stroke	8
Ischemic Heart Disease	43
Depression	21
Chronic Kidney Disease	62
Asthma	7
Osteoperosis	21
Atrial Fibrilation	18
Heart Failure	25
Chronic Obstructive Pulmonary Disease	14
Diabetes	57
Dementia	11
Cancer	13

blood draw	324
diabetes management	219
doctor visit	461
hospital care	205
inpatient care	205
lab tests	1120
preventive care	307
thyroid function tests	344
vaccines	31

**Gender**
Male	163
Female	287

**Ethnicity**
Non-Hispanic White	384
Black	0
Hispanic	20
Asian	23
Other	0
Native American	0

**Age**
From 65 to 74	264
From 75 to 84	124
85 and over	21
Less than 65	41

Hypertension	65
High Cholesterol	68
Stroke	6
Ischemic Heart Disease	36
Depression	23
Chronic Kidney Disease	58
Asthma	6
Osteoperosis	18
Atrial Fibrilation	16
Heart Failure	20
Chronic Obstructive Pulmonary Disease	12
Diabetes	54
Dementia	8
Cancer	11

blood draw	744
diabetes management	639
doctor visit	1234
hospital care	27
inpatient care	27
lab tests	2778
preventive care	782
thyroid function tests	983
vaccines	22

Average Medicare Procedure Volume From 2013 - 2021

Volume of procedures performed by Dr. Yoojin Kim Pak, MD for Medicare patients.

The highest averages for the top procedures that Dr. Yoojin Kim Pak, MD treated as an endocrinologist in Lisle, IL were lab tests, thyroid function tests, blood draw and preventive care.

aspiration	15
blood draw	327
diabetes management	240
diagnostic procedures	15
doctor visit	493
hospital care	197
image guided procedures	15
inpatient care	197
lab tests	991
minimally invasive procedures	15
minor procedures	15
preventive care	308
thyroid function tests	405
vaccines	20

Average Medicare Patient Data From 2013 - 2021

Information about Medicare patients treated by Dr. Yoojin Kim Pak, MD.

**Gender**
Male	118
Female	179

**Ethnicity**
Black / African American	2
Asian / Pacific Islander	12
Non-Hispanic White	252
Native American / Alaskan Native	0
Hispanic	13
Other	1

**Age**
75 to 84	79
85 and over	19
Less than 65	29
65 to 74	166

Average of Total of Conditions of Medicare patients treated by Dr. Yoojin Kim Pak, MD From 2013 - 2021

The highest averages of the most common conditions of Medicare patients that Dr. Yoojin Kim Pak, MD treated were hypertension, high cholesterol, diabetes and chronic kidney disease.

Hypertension	58
High Cholesterol	57
Stroke	5
Ischemic Heart Disease	35
Depression	19
Chronic Kidney Disease	40
Asthma	7
Osteoporosis	13
Heart Failure	20
Chronic Obstructive Pulmonary Disease	12
Diabetes	46
Atrial Fibrillation	15
Cancer	8
Dementia	7

Education & Training

Dr. Yoojin Kim Pak, MD graduated from Rosalind Franklin University of Medicine and Science, Chicago Medical School in 2008. She completed residency at Rush University Medical Center. She is certified by the Internal Medicine, Endocrinology Languages English, Korean and has a state license in Illinois.

Medical School: Rosalind Franklin University of Medicine and Science, Chicago Medical School (2008)

Residency: Rush University Medical Center

Board Certification: Internal Medicine, Endocrinology Languages English, Korean

Licensed In: Illinois

Affiliations & Hospitals

Dr. Yoojin Kim Pak, MD is associated with these hospitals and organizations:

Duly Health and Care

DUPAGE MEDICAL GROUP LTD

Ratings & Reviews

Dr. Yoojin Kim Pak, MD has an exceptional overall rating with an average of 4.9 out of 5 stars based on 304 ratings. We collect ratings and reviews of Dr. Yoojin Kim Pak, MD from all over the web to help you find the right in Lisle, IL.

4.9

Overall Rating

(304 Ratings)

Leave a Review

General Payments

These charts describe general payments received by Dr. Yoojin Kim Pak, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Novo Nordisk Inc	$697 Ozempic $397	Tresiba $195	RYBELSUS $52	Victoza $21	$32
SANOFI-AVENTIS U.S. LLC	$431 LANTUS $280	TOUJEO $110	APIDRA $28	AFREZZA $13
Shire North American Group Inc	$175 NATPARA $158	NATPARA (PARATHYROID HORMONE) $17
MannKind Corporation	$151 AFREZZA $151
Dexcom, Inc.	$142 Dexcom G5 Mobile CGM System $92	Dexcom CGM $36	DEXCOM G6 TRANSMITTER $14
Other	$417 INVOKANA $113	FREESTYLE LIBRE 3 $74	Minimed 670G System $55	Omnipod $51	Continuous Glucose Monitor $40	Other $84

**Types of Payments**
Food and Beverage	$1,909
Gift	$59
Education	$44

Biography

Dr. Yoojin Pak's medical specialty is adult endocrinology. After attending Rosalind Franklin University of Medicine and Science, Chicago Medical School, she completed her residency training at Rush University Medical Center. Patients gave Dr. Pak an average rating of 5.0 stars (out of 5). She speaks Korean. Dr. Pak is professionally affiliated with Duly Health and Care. She has an open panel in Lisle, IL according to Doctor.com.