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Home > CA Providers > Radiation Oncologists

Dr. Percy Po-Yih Lee, MD

Accepting New Patients

(1 Rating)

Specializes in: Radiation Oncology

Harvard Medical School (2003)

1000 Fivepoint
Irvine, CA 92618

(847) 342-6842

Dr. Percy Po-Yih Lee, MD is a radiation oncologist in Irvine, CA specializing in radiation oncology. He graduated from Harvard Medical School in 2003 and has 23 years of experience. Dr. Percy Po-Yih Lee, MD is affiliated with City of Hope.

Office Locations

1000 Fivepoint
Irvine, CA 92618

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In The News (see more mentions in the news)

“City of Hope also brought on physician-scientist Dr. Percy Lee from City of Hope Duarte in 2022 to launch and lead the radiation oncology department at the Lennar Foundation Cancer Center, which is...”—"City of Hope Prepares to See First Patients at Cancer Only Hospital", Orange County Business Journal, November 2025

“City of Hope's radiation oncology department, led by medical director Dr. Percy Lee, has about 50 employees and is home to a trio of advanced machines that tailor radiation therapy to individual...”—"City of Hope Cancer Hospital to Open This Year", Orange County Business Journal, February 2025

“"Those are very sensitive structures that we don't want to overtake with radiation," Dr. Percy Lee, the medical director of City of Hope Orange County's radiation oncology department, told the...”—"New City of Hope Cancer Killer Spares Healthy Cells", Orange County Business Journal, May 2024

Noteworthy Medicare Patient Procedures Performed by Dr. Percy Po-Yih Lee, MD in 2023

Click on any procedure below to see further details on volume and pricing among Medicare patients.

Top 25%

By Affordability:

radiation therapy

In 2012, Dr. Percy Po-Yih Lee, MD had a list price for radiation therapy that was lower than the list prices billed to Medicare by 75% of providers in related specialties within California. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Percy Po-Yih Lee, MD treated as a radiation oncologist in Irvine, CA during 2012 were radiation therapy.

Volume of procedures performed by Dr. Percy Po-Yih Lee, MD for Medicare patients.

doctor visit	486
radiation therapy	63

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Percy Po-Yih Lee, MD treated as a radiation oncologist in Irvine, CA during 2013 were radiation therapy.

Volume of procedures performed by Dr. Percy Po-Yih Lee, MD for Medicare patients.

doctor visit	651
radiation therapy	88

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Percy Po-Yih Lee, MD.

**Gender**
Male	140
Female	134

**Ethnicity**
Non-Hispanic White	185
Black	14
Hispanic	19
Asian	44
Other	12
Native American	0

**Age**
From 65 to 74	130
From 75 to 84	77
85 and over	46
Less than 65	21

Conditions of Medicare patients treated by Dr. Percy Po-Yih Lee, MD in 2013

Hypertension	69
High Cholesterol	49
Stroke	4
Ischemic Heart Disease	47
Depression	27
Chronic Kidney Disease	28
Asthma	9
Osteoperosis	10
Atrial Fibrilation	14
Heart Failure	24
Chronic Obstructive Pulmonary Disease	30
Diabetes	27
Dementia	11
Cancer	75

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Percy Po-Yih Lee, MD treated as a radiation oncologist in Irvine, CA during 2014 were radiation therapy.

Volume of procedures performed by Dr. Percy Po-Yih Lee, MD for Medicare patients.

doctor visit	631
radiation therapy	93

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Percy Po-Yih Lee, MD.

**Gender**
Male	119
Female	129

**Ethnicity**
Non-Hispanic White	164
Black	0
Hispanic	23
Asian	42
Other	0
Native American	0

**Age**
From 65 to 74	125
From 75 to 84	67
85 and over	40
Less than 65	16

Conditions of Medicare patients treated by Dr. Percy Po-Yih Lee, MD in 2014

Hypertension	65
High Cholesterol	50
Stroke	6
Ischemic Heart Disease	46
Depression	25
Chronic Kidney Disease	28
Asthma	12
Osteoperosis	11
Atrial Fibrilation	12
Heart Failure	23
Chronic Obstructive Pulmonary Disease	33
Diabetes	28
Dementia	11
Cancer	75

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Percy Po-Yih Lee, MD treated as a radiation oncologist in Irvine, CA during 2015 were radiation therapy.

Volume of procedures performed by Dr. Percy Po-Yih Lee, MD for Medicare patients.

doctor visit	657
radiation therapy	56

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Percy Po-Yih Lee, MD.

**Gender**
Male	274
Female	258

**Ethnicity**
Non-Hispanic White	348
Black	0
Hispanic	50
Asian	86
Other	0
Native American	0

**Age**
From 65 to 74	244
From 75 to 84	170
85 and over	88
Less than 65	30

Conditions of Medicare patients treated by Dr. Percy Po-Yih Lee, MD in 2015

Hypertension	68
High Cholesterol	50
Stroke	7
Ischemic Heart Disease	45
Depression	29
Chronic Kidney Disease	32
Asthma	22
Osteoperosis	8
Atrial Fibrilation	12
Heart Failure	24
Chronic Obstructive Pulmonary Disease	37
Diabetes	27
Dementia	10
Cancer	75

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Percy Po-Yih Lee, MD treated as a radiation oncologist in Irvine, CA during 2016 were radiation therapy.

Volume of procedures performed by Dr. Percy Po-Yih Lee, MD for Medicare patients.

doctor visit	573
radiation therapy	89

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Percy Po-Yih Lee, MD.

**Gender**
Male	118
Female	108

**Ethnicity**
Non-Hispanic White	148
Black	0
Hispanic	23
Asian	39
Other	0
Native American	0

**Age**
From 65 to 74	89
From 75 to 84	78
85 and over	39
Less than 65	20

Conditions of Medicare patients treated by Dr. Percy Po-Yih Lee, MD in 2016

Hypertension	72
High Cholesterol	48
Stroke	5
Ischemic Heart Disease	46
Depression	20
Chronic Kidney Disease	35
Asthma	31
Osteoperosis	14
Atrial Fibrilation	10
Heart Failure	24
Chronic Obstructive Pulmonary Disease	34
Diabetes	29
Dementia	12
Cancer	75

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Percy Po-Yih Lee, MD treated as a radiation oncologist in Irvine, CA during 2017 were radiation therapy.

Volume of procedures performed by Dr. Percy Po-Yih Lee, MD for Medicare patients.

doctor visit	506
radiation therapy	78

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Percy Po-Yih Lee, MD.

**Gender**
Male	129
Female	131

**Ethnicity**
Non-Hispanic White	177
Black	16
Hispanic	25
Asian	31
Other	11
Native American	0

**Age**
From 65 to 74	117
From 75 to 84	87
85 and over	38
Less than 65	18

Conditions of Medicare patients treated by Dr. Percy Po-Yih Lee, MD in 2017

Hypertension	74
High Cholesterol	51
Stroke	6
Ischemic Heart Disease	44
Depression	27
Chronic Kidney Disease	42
Asthma	10
Osteoperosis	13
Atrial Fibrilation	13
Heart Failure	22
Chronic Obstructive Pulmonary Disease	34
Diabetes	30
Dementia	10
Cancer	75

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Percy Po-Yih Lee, MD treated as a radiation oncologist in Irvine, CA during 2018 were radiation therapy.

Volume of procedures performed by Dr. Percy Po-Yih Lee, MD for Medicare patients.

doctor visit	525
radiation therapy	76

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Percy Po-Yih Lee, MD.

**Gender**
Male	119
Female	124

**Ethnicity**
Non-Hispanic White	168
Black	13
Hispanic	27
Asian	23
Other	12
Native American	0

**Age**
From 65 to 74	104
From 75 to 84	88
85 and over	31
Less than 65	20

Conditions of Medicare patients treated by Dr. Percy Po-Yih Lee, MD in 2018

Hypertension	70
High Cholesterol	58
Stroke	5
Ischemic Heart Disease	45
Depression	26
Chronic Kidney Disease	42
Asthma	11
Osteoperosis	14
Atrial Fibrilation	13
Heart Failure	27
Chronic Obstructive Pulmonary Disease	34
Diabetes	31
Dementia	13
Cancer	75

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Percy Po-Yih Lee, MD treated as a radiation oncologist in Irvine, CA during 2019 were radiation therapy.

Volume of procedures performed by Dr. Percy Po-Yih Lee, MD for Medicare patients.

doctor visit	375
radiation therapy	63

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Percy Po-Yih Lee, MD.

**Gender**
Male	113
Female	101

**Ethnicity**
Non-Hispanic White	150
Black	0
Hispanic	17
Asian	30
Other	0
Native American	0

**Age**
From 65 to 74	94
From 75 to 84	75
85 and over	31
Less than 65	14

Conditions of Medicare patients treated by Dr. Percy Po-Yih Lee, MD in 2019

Hypertension	67
High Cholesterol	59
Stroke	0
Ischemic Heart Disease	53
Depression	27
Chronic Kidney Disease	41
Asthma	9
Osteoperosis	13
Atrial Fibrilation	16
Heart Failure	22
Chronic Obstructive Pulmonary Disease	32
Diabetes	30
Dementia	15
Cancer	75

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Percy Po-Yih Lee, MD treated as a radiation oncologist in Irvine, CA during 2020 were radiation therapy.

Volume of procedures performed by Dr. Percy Po-Yih Lee, MD for Medicare patients.

doctor visit	251
radiation therapy	49

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Percy Po-Yih Lee, MD.

**Gender**
Male	93
Female	66

**Ethnicity**
Non-Hispanic White	122
Black	15
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	97
From 75 to 84	48
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Percy Po-Yih Lee, MD in 2020

Hypertension	71
High Cholesterol	67
Stroke	0
Ischemic Heart Disease	54
Depression	35
Chronic Kidney Disease	38
Asthma	11
Osteoperosis	14
Atrial Fibrilation	15
Heart Failure	18
Chronic Obstructive Pulmonary Disease	43
Diabetes	28
Dementia	12
Cancer	75

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Percy Po-Yih Lee, MD treated as a radiation oncologist in Irvine, CA during 2021 were radiation therapy.

Volume of procedures performed by Dr. Percy Po-Yih Lee, MD for Medicare patients.

doctor visit	267
radiation therapy	45

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Percy Po-Yih Lee, MD.

**Gender**
Male	102
Female	75

**Ethnicity**
Non-Hispanic White	138
Black	15
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	86
From 75 to 84	71
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Percy Po-Yih Lee, MD in 2021

Hypertension	75
High Cholesterol	73
Stroke	8
Ischemic Heart Disease	53
Depression	31
Chronic Kidney Disease	43
Asthma	12
Osteoperosis	11
Atrial Fibrilation	16
Heart Failure	21
Chronic Obstructive Pulmonary Disease	40
Diabetes	30
Dementia	13
Cancer	75

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Percy Po-Yih Lee, MD treated as a radiation oncologist in Irvine, CA during 2022 were radiation therapy.

Volume of procedures performed by Dr. Percy Po-Yih Lee, MD for Medicare patients.

doctor visit	198
radiation therapy	28

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Percy Po-Yih Lee, MD.

**Gender**
Male	80
Female	59

**Ethnicity**
Non-Hispanic White	103
Black	0
Hispanic	0
Asian	20
Other	0
Native American	0

**Age**
From 65 to 74	66
From 75 to 84	53
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Percy Po-Yih Lee, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	40
Depression	14
Chronic Kidney Disease	26
Asthma	14
Osteoperosis	16
Atrial Fibrilation	26
Heart Failure	14
Chronic Obstructive Pulmonary Disease	30
Diabetes	27
Dementia	0
Cancer	75

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Percy Po-Yih Lee, MD for Medicare patients.

The highest averages for the top procedures that Dr. Percy Po-Yih Lee, MD treated as a radiation oncologist in Irvine, CA were radiation therapy.

doctor visit	465
radiation therapy	66

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Percy Po-Yih Lee, MD.

**Gender**
Male	117
Female	107

**Ethnicity**
Black / African American	6
Asian / Pacific Islander	28
Non-Hispanic White	154
Native American / Alaskan Native	0
Hispanic	16
Other	3

**Age**
75 to 84	74
85 and over	28
Less than 65	12
65 to 74	104

Average of Total of Conditions of Medicare patients treated by Dr. Percy Po-Yih Lee, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Percy Po-Yih Lee, MD treated were cancer, hypertension, high cholesterol and ischemic heart disease.

Hypertension	64
High Cholesterol	52
Stroke	3
Ischemic Heart Disease	43
Depression	23
Chronic Kidney Disease	32
Asthma	12
Osteoporosis	11
Heart Failure	19
Chronic Obstructive Pulmonary Disease	31
Diabetes	26
Atrial Fibrillation	13
Dementia	9
Cancer	68

Education & Training

Dr. Percy Po-Yih Lee, MD graduated from Harvard Medical School in 2003. He completed residency at Stanford University Medical Center. He is certified by the American Board of Radiology and has a state license in California.

Medical School: Harvard Medical School (2003)

Residency: Stanford University Medical Center (2004)

Board Certification: American Board of Radiology (2009)

Licensed In: California

Affiliations & Hospitals

Dr. Percy Po-Yih Lee, MD is associated with these hospitals and organizations:

City of Hope

Ratings & Reviews

Dr. Percy Po-Yih Lee, MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 1 ratings. We collect ratings and reviews of Dr. Percy Po-Yih Lee, MD from all over the web to help you find the right in Irvine, CA.

Overall Rating

(1 Rating)

Leave a Review

Reviews Left On DocSpot

Overall Rating: 5.0 2021-11-06

Dr Percy Lee Radiated three tumors on my lower right lung with no problems at U CLA. I may have to go to Huston. In 2020 Drs wanted to do Surgery. I wanted them to use the radiation machine Dr. Percy used. I hope they new what they were doing. I have strong confidence in Dr. Percy Lee.

General Payments

These charts describe general payments received by Dr. Percy Po-Yih Lee, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
VIEWRAY TECHNOLOGIES INC	$60,438 MRIDIAN $36,157	MRIdian LINAC $21,622	$2,659
AstraZeneca Pharmaceuticals LP	$55,230 IMFINZI $49,806	TAGRISSO $3,775	$1,649
Varian Medical Systems, Inc.	$15,697 Treatment Planning Systems $450	TrueBeam $210	$15,037
AstraZeneca UK Limited	$5,298 IMFINZI $1,611	$3,688
VIEWRAY INC	$4,025 MRIDIAN SYSTEM $3,025	VIEWRAY SYSTEM $1,000
Other	$6,374 Alecensa $2,970	TrueBeam $2,074	EUS $500	Non-Product Specific $248	ELEKTA MEDICAL LINEAR ACCELERATOR $167	Other $414

**Types of Payments**
Consulting Fee	$76,253
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$28,450
Honoraria	$20,996
Travel and Lodging	$16,923
Food and Beverage	$4,440

Research Payments

Dr. Percy Po-Yih Lee, MD has received 8 research payments totaling $1,796,416.

Biography

Dr. Percy Lee's area of specialization is radiation oncology. His education and training includes medical school at Harvard Medical School and residency at Stanford University Medical Center. Dr. Lee has received distinctions including Southern California Super Doctors; Texas Super Doctors; and Southern California Rising Stars. He is professionally affiliated with City of Hope. Doctor.com reports that he is accepting new patients at his office in Irvine, CA.