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Dr. Donny Li-Fan Chang, MD, PHD

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Specializes in: Adult Endocrinology

Boston University School of Medicine

Professional interests include: pituitary disorders, parathyroid disease, osteoporosis, and more.

21 Main Street
Maynard, MA 01754

(978) 287-8520

Dr. Donny Li-Fan Chang, MD, PHD is an endocrinologist in Maynard, MA specializing in adult endocrinology. He graduated from Boston University School of Medicine. Dr. Donny Li-Fan Chang, MD, PHD is affiliated with Emerson Health, EMERSON PRACTICE ASSOCIATES, INC and Emerson Health Endocrinology.

Office Locations

Address:

21 Main Street
Maynard, MA 01754

Address:

225 New Lancaster Road
Leominster, MA 01453

Some issues Dr. Donny Li-Fan Chang, MD, PHD can help you with:

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.

In The News

“DR. TALLEY WHANG and DR. DONNY CHANG were hired by Reliant Medical Group of Worcester.”—"Movers & Shakers", Worcester Business Journal, September 2013

blood draw	39
diabetes management	23
doctor visit	82
lab tests	23

**Gender**
Male	32
Female	32

**Age**
From 65 to 74	0
From 75 to 84	0
85 and over	0
Less than 65	28

Hypertension	75
High Cholesterol	73
Stroke	0
Ischemic Heart Disease	41
Depression	42
Chronic Kidney Disease	27
Asthma	22
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	25
Chronic Obstructive Pulmonary Disease	19
Diabetes	59
Dementia	0
Cancer	0

blood draw	145
diabetes management	39
doctor visit	237
lab tests	39

**Gender**
Male	69
Female	90

**Ethnicity**
Non-Hispanic White	125
Black	0
Hispanic	18
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	63
From 75 to 84	0
85 and over	0
Less than 65	58

Hypertension	72
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	36
Depression	40
Chronic Kidney Disease	40
Asthma	19
Osteoperosis	8
Atrial Fibrilation	9
Heart Failure	25
Chronic Obstructive Pulmonary Disease	16
Diabetes	67
Dementia	8
Cancer	7

blood draw	201
diabetes management	54
doctor visit	291
lab tests	54

**Gender**
Male	176
Female	216

**Ethnicity**
Non-Hispanic White	306
Black	0
Hispanic	48
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	180
From 75 to 84	0
85 and over	0
Less than 65	130

Hypertension	75
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	33
Depression	35
Chronic Kidney Disease	47
Asthma	22
Osteoperosis	11
Atrial Fibrilation	10
Heart Failure	17
Chronic Obstructive Pulmonary Disease	15
Diabetes	66
Dementia	8
Cancer	7

blood draw	171
diabetes management	39
doctor visit	347
lab tests	39

**Gender**
Male	94
Female	109

**Ethnicity**
Non-Hispanic White	158
Black	0
Hispanic	22
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	80
From 75 to 84	38
85 and over	12
Less than 65	73

Hypertension	73
High Cholesterol	74
Stroke	0
Ischemic Heart Disease	31
Depression	33
Chronic Kidney Disease	61
Asthma	22
Osteoperosis	10
Atrial Fibrilation	9
Heart Failure	15
Chronic Obstructive Pulmonary Disease	17
Diabetes	71
Dementia	0
Cancer	6

blood draw	204
diabetes management	40
doctor visit	327
lab tests	40

**Gender**
Male	85
Female	123

**Ethnicity**
Non-Hispanic White	159
Black	0
Hispanic	26
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	93
From 75 to 84	37
85 and over	12
Less than 65	66

Hypertension	74
High Cholesterol	73
Stroke	0
Ischemic Heart Disease	31
Depression	33
Chronic Kidney Disease	64
Asthma	16
Osteoperosis	9
Atrial Fibrilation	9
Heart Failure	14
Chronic Obstructive Pulmonary Disease	17
Diabetes	72
Dementia	6
Cancer	9

blood draw	192
diabetes management	43
doctor visit	326
lab tests	43

**Gender**
Male	98
Female	113

**Ethnicity**
Non-Hispanic White	161
Black	0
Hispanic	26
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	99
From 75 to 84	45
85 and over	12
Less than 65	55

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	35
Depression	34
Chronic Kidney Disease	64
Asthma	11
Osteoperosis	11
Atrial Fibrilation	9
Heart Failure	17
Chronic Obstructive Pulmonary Disease	13
Diabetes	73
Dementia	6
Cancer	9

blood draw	187
diabetes management	57
doctor visit	381
lab tests	57

**Gender**
Male	106
Female	139

**Ethnicity**
Non-Hispanic White	194
Black	0
Hispanic	28
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	113
From 75 to 84	57
85 and over	12
Less than 65	63

Hypertension	65
High Cholesterol	69
Stroke	0
Ischemic Heart Disease	32
Depression	38
Chronic Kidney Disease	61
Asthma	12
Osteoperosis	13
Atrial Fibrilation	9
Heart Failure	16
Chronic Obstructive Pulmonary Disease	14
Diabetes	67
Dementia	8
Cancer	9

blood draw	189
diabetes management	14
doctor visit	290
lab tests	14

**Gender**
Male	110
Female	135

**Ethnicity**
Non-Hispanic White	190
Black	11
Hispanic	27
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	118
From 75 to 84	60
85 and over	0
Less than 65	0

Hypertension	66
High Cholesterol	67
Stroke	6
Ischemic Heart Disease	35
Depression	36
Chronic Kidney Disease	62
Asthma	11
Osteoperosis	13
Atrial Fibrilation	10
Heart Failure	18
Chronic Obstructive Pulmonary Disease	12
Diabetes	66
Dementia	4
Cancer	7

blood draw	382
diabetes management	19
doctor visit	693
lab tests	19

Average Medicare Procedure Volume From 2013 - 2021

Volume of procedures performed by Dr. Donny Li-Fan Chang, MD, PHD for Medicare patients.

The highest averages for the top procedures that Dr. Donny Li-Fan Chang, MD, PHD treated as an endocrinologist in Maynard, MA were blood draw, lab tests and diabetes management.

blood draw	190
diabetes management	36
doctor visit	331
lab tests	36

Average Medicare Patient Data From 2013 - 2021

Information about Medicare patients treated by Dr. Donny Li-Fan Chang, MD, PHD.

**Gender**
Male	77
Female	95

**Ethnicity**
Black / African American	1
Asian / Pacific Islander	0
Non-Hispanic White	129
Native American / Alaskan Native	0
Hispanic	19
Other	0

**Age**
75 to 84	23
85 and over	4
Less than 65	47
65 to 74	74

Average of Total of Conditions of Medicare patients treated by Dr. Donny Li-Fan Chang, MD, PHD From 2013 - 2021

The highest averages of the most common conditions of Medicare patients that Dr. Donny Li-Fan Chang, MD, PHD treated were high cholesterol, hypertension, diabetes and chronic kidney disease.

Hypertension	57
High Cholesterol	58
Stroke	1
Ischemic Heart Disease	27
Depression	29
Chronic Kidney Disease	42
Asthma	13
Osteoporosis	7
Heart Failure	14
Chronic Obstructive Pulmonary Disease	12
Diabetes	54
Atrial Fibrillation	6
Cancer	5
Dementia	4

Education & Training

Dr. Donny Li-Fan Chang, MD, PHD graduated from Boston University School of Medicine. He completed residency at Boston Medical Center. He is certified by the Internal Medicine and has a state license in Massachusetts.

Medical School: Boston University School of Medicine

Residency: Boston Medical Center

Board Certification: Internal Medicine

Licensed In: Massachusetts

Affiliations & Hospitals

Dr. Donny Li-Fan Chang, MD, PHD is associated with these hospitals and organizations:

Emerson Health

EMERSON PRACTICE ASSOCIATES, INC

Emerson Health Endocrinology

Ratings & Reviews

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General Payments

These charts describe general payments received by Dr. Donny Li-Fan Chang, MD, PHD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Abbott Laboratories	$39 FreeStyle Libre blood glucose Flash Monitoring System $21	FREESTYLE LIBRE 3 $18
Dexcom, Inc.	$24 DEXCOM G6 TRANSMITTER $24
Novo Nordisk Inc	$23 RYBELSUS $23
SANOFI-AVENTIS U.S. LLC	$23 APIDRA $23
Lilly USA, LLC	$17 TRADJENTA $17
Other	$23 t-slim insulin pump $12	V-GO $11

**Types of Payments**
Food and Beverage	$137
Education	$11

Biography

Dr. Donny Chang is an adult endocrinology specialist. His clinical interests include diabetes, thyroid problems, and pituitary disorders. Dr. Chang is affiliated with Emerson Hospital. He graduated from Boston University School of Medicine. For his professional training, Dr. Chang completed a residency program at Boston Medical Center.

Select Year:

Dr. Donny Li-Fan Chang, MD, PHD

Office Locations

Some issues Dr. Donny Li-Fan Chang, MD, PHD can help you with:

In The News

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Donny Li-Fan Chang, MD, PHD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Donny Li-Fan Chang, MD, PHD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Donny Li-Fan Chang, MD, PHD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Donny Li-Fan Chang, MD, PHD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Donny Li-Fan Chang, MD, PHD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Donny Li-Fan Chang, MD, PHD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Donny Li-Fan Chang, MD, PHD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Donny Li-Fan Chang, MD, PHD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

Average Medicare Procedure Volume From 2013 - 2021

Average Medicare Patient Data From 2013 - 2021

Average of Total of Conditions of Medicare patients treated by Dr. Donny Li-Fan Chang, MD, PHD From 2013 - 2021

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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