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Home > OH Providers > Radiation Oncologists

Dr. Timothy An-Thy Chan, MD, PhD

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Specializes in: Radiation Oncology

Professional interests include: acoustic neuroma, metastatic cancer, cancer, and more.

9500 Euclid Avenue Mail Code Nb40
Cleveland, OH 44195

(216) 444-5571

Dr. Timothy An-Thy Chan, MD, PhD is a radiation oncologist in Cleveland, OH specializing in radiation oncology. Dr. Timothy An-Thy Chan, MD, PhD is affiliated with Cleveland Clinic and Cleveland Clinic Main Campus.

Office Locations

Address:

9500 Euclid Avenue Mail Code Nb40
Cleveland, OH 44195

Some issues Dr. Timothy An-Thy Chan, MD, PhD can help you with:

External Beam Radiation Therapy (EBRT)

External beam radiation therapy (EBRT) is a type of cancer treatment that delivers radiation from outside of the body. The goal of EBRT is to destroy cancer cells and shrink tumors, although it may also be used to alleviate symptoms rather than cure cancer.

EBRT can be delivered through several different methods, which may be combined or used alone. The type and length of treatment vary based on the location of the cancer or tumor and its size. Techniques for EBRT include:

Conventional external beam radiation therapy, which delivers a single beam of radiation from multiple directions. Conventional EBRT is commonly used to treat brain tumors, particularly when the entire brain needs treatment.
Intensity-modulated radiation therapy (IMRT), which uses smaller beams with adjustable intensity levels, so the most intense beams can be directed at the tumor. IMRT is used in several types of cancers, including prostate, gastrointestinal, brain, and lung cancers.
Orthovoltage, which uses low energy X-rays that do not penetrate the skin very deeply. Orthovoltage is typically used for skin cancers or other skin conditions.
Proton therapy, which uses a particle accelerator to deliver positively charged particles (protons) for cancer treatment. Proton beams can be controlled more precisely than X-rays, so there is less risk of damage to healthy tissue. This makes proton therapy a good option for younger patients, as other types of EBRT pose long-term risks such as growth problems and heart disease.
Stereotactic radiosurgery (SRS), which is a non-surgical type of radiation therapy that uses 3-D imaging to directly target tumors and avoid healthy tissue. SRS is often used for small tumors, particularly those in the brain (cranial radiosurgery) and spine (spinal radiosurgery). When performed outside of the brain and spine, it is called stereotactic body radiation therapy (SBRT).

Typically, patients will undergo treatment for five days a week over the course of several weeks, and they should be able to go home the same day. Each session can take less than an hour, with most of the time spent determining proper positioning of the body. Actual delivery of the radiation may only take a few minutes, and patients will wear a lead shield to protect healthy body tissues while receiving their treatment.

EBRT is painless, but it does come with some side effects, such as fatigue. Over the course of the therapy, oncologists will monitor patients' conditions and adjust their dosage, number of sessions, and length of treatment based on their body's response to the radiation.

In The News (see more mentions in the news)

“The current cell map not only charts the many types of human cells, but it also shows the relationships of cells to each other, said Dr. Timothy Chan, a cancer expert at the Cleveland Clinic.”—"Scientists map out the human body one cell at a time", ABC News, November 2024

“This is going to be a boon for identifying and treating cancer cells," said Dr. Timothy Chan of the Cleveland Clinic, who was not directly involved in the studies.”—"Scientists create first draft of human "cell atlas" for disease research", Newsweek, November 2024

“"In the past, all our data on cancer antigen targets came from trial and error," Dr. Timothy Chan, study co-author and chair of Cleveland Clinic's Center for Immunotherapy and Precision...”—"The danger in hospital at home", Politico, February 2024

**Gender**
Male	25
Female	36

**Ethnicity**
Non-Hispanic White	46
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	27
From 75 to 84	19
85 and over	0
Less than 65	0

Hypertension	64
High Cholesterol	59
Stroke	0
Ischemic Heart Disease	46
Depression	36
Chronic Kidney Disease	21
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	18
Diabetes	39
Dementia	0
Cancer	56

doctor visit	122

**Gender**
Male	30
Female	43

**Ethnicity**
Non-Hispanic White	57
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	40
From 75 to 84	0
85 and over	0
Less than 65	0

Hypertension	66
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	51
Depression	34
Chronic Kidney Disease	34
Asthma	0
Osteoperosis	15
Atrial Fibrilation	0
Heart Failure	23
Chronic Obstructive Pulmonary Disease	21
Diabetes	34
Dementia	0
Cancer	59

doctor visit	111

**Gender**
Male	52
Female	76

**Ethnicity**
Non-Hispanic White	104
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	70
From 75 to 84	36
85 and over	0
Less than 65	0

Hypertension	61
High Cholesterol	48
Stroke	0
Ischemic Heart Disease	42
Depression	33
Chronic Kidney Disease	25
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	23
Diabetes	28
Dementia	0
Cancer	58

doctor visit	68

**Gender**
Male	25
Female	31

**Age**
From 65 to 74	26
From 75 to 84	16
85 and over	0
Less than 65	0

Hypertension	57
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	52
Depression	29
Chronic Kidney Disease	36
Asthma	23
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	21
Chronic Obstructive Pulmonary Disease	20
Diabetes	39
Dementia	0
Cancer	57

doctor visit	69

**Gender**
Male	49
Female	48

**Ethnicity**
Non-Hispanic White	74
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	47
From 75 to 84	30
85 and over	0
Less than 65	0

Hypertension	68
High Cholesterol	53
Stroke	13
Ischemic Heart Disease	35
Depression	25
Chronic Kidney Disease	36
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	15
Chronic Obstructive Pulmonary Disease	15
Diabetes	36
Dementia	16
Cancer	56

doctor visit	119

**Gender**
Male	48
Female	61

**Ethnicity**
Non-Hispanic White	79
Black	12
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	55
From 75 to 84	28
85 and over	0
Less than 65	0

Hypertension	67
High Cholesterol	53
Stroke	17
Ischemic Heart Disease	30
Depression	35
Chronic Kidney Disease	42
Asthma	15
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	17
Chronic Obstructive Pulmonary Disease	17
Diabetes	33
Dementia	16
Cancer	58

doctor visit	88

**Gender**
Male	42
Female	40

**Ethnicity**
Non-Hispanic White	59
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	48
From 75 to 84	21
85 and over	0
Less than 65	0

Hypertension	73
High Cholesterol	62
Stroke	21
Ischemic Heart Disease	37
Depression	23
Chronic Kidney Disease	44
Asthma	0
Osteoperosis	0
Atrial Fibrilation	13
Heart Failure	20
Chronic Obstructive Pulmonary Disease	21
Diabetes	43
Dementia	0
Cancer	55

Average Medicare Procedure Volume From 2013 - 2019

Volume of procedures performed by Dr. Timothy An-Thy Chan, MD, PhD for Medicare patients.

doctor visit	99

Average Medicare Patient Data From 2013 - 2019

Information about Medicare patients treated by Dr. Timothy An-Thy Chan, MD, PhD.

**Gender**
Male	27
Female	33

**Ethnicity**
Black / African American	1
Asian / Pacific Islander	0
Non-Hispanic White	41
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	15
85 and over	0
Less than 65	0
65 to 74	31

Average of Total of Conditions of Medicare patients treated by Dr. Timothy An-Thy Chan, MD, PhD From 2013 - 2019

The highest averages of the most common conditions of Medicare patients that Dr. Timothy An-Thy Chan, MD, PhD treated were hypertension, cancer, high cholesterol and ischemic heart disease.

Hypertension	45
High Cholesterol	39
Stroke	5
Ischemic Heart Disease	29
Depression	21
Chronic Kidney Disease	23
Asthma	3
Osteoporosis	1
Heart Failure	9
Chronic Obstructive Pulmonary Disease	13
Diabetes	25
Atrial Fibrillation	1
Cancer	39
Dementia	3

Education & Training

He completed residency at Johns Hopkins University Affiliated Hospitals. He is certified by the Radiology - Radiation Oncology and has a state license in Maryland.

Residency: Johns Hopkins University Affiliated Hospitals (2007)

Board Certification: Radiology - Radiation Oncology

Licensed In: Maryland

Affiliations & Hospitals

Dr. Timothy An-Thy Chan, MD, PhD is associated with these hospitals and organizations:

Cleveland Clinic

Cleveland Clinic Main Campus

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General Payments

These charts describe general payments received by Dr. Timothy An-Thy Chan, MD, PhD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
E.R. Squibb & Sons, L.L.C.	$5,016 OPDIVO $3,034	$1,982
AstraZeneca Pharmaceuticals LP	$3,300 $3,300
Pfizer Inc.	$2,700 $2,700
ImClone Systems, LLC	$1,700 $1,700
Illumina, Inc.	$214 MiSeqDx Instrument $214
Other	$20 Edge $20

**Types of Payments**
Consulting Fee	$9,200
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$2,900
Food and Beverage	$717
Travel and Lodging	$133

Research Payments

Dr. Timothy An-Thy Chan, MD, PhD has received 8 research payments totaling $4,535,043.

Biography

Dr. Timothy Chan's specialty is radiation oncology. Clinical interests for Dr. Chan include intensity-modulated radiation therapy (IMRT), gamma knife radiosurgery, and pituitary tumor. Dr. Chan's training includes a residency program at a hospital affiliated with Johns Hopkins University. He is affiliated with Cleveland Clinic Main Campus.