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Home > CA Providers > Surgical Oncologists

Dr. Stanley Pui-Lock Leong, MD

(Dr. Stanley PL Leong, MD)

(No ratings)

Specializes in: Surgical Oncology (Cancer Surgery)

Tulane University School of Medicine (1974)

2340 Clay Street 2nd Floor
San Francisco, CA 94115

(415) 600-3800

Dr. Stanley Pui-Lock Leong, MD is a surgical oncologist in San Francisco, CA specializing in surgical oncology (cancer surgery). He graduated from Tulane University School of Medicine in 1974 and has 52 years of experience. Dr. Stanley Pui-Lock Leong, MD is affiliated with SUTTER BAY MEDICAL FOUNDATION.

Office Locations

2340 Clay Street 2nd Floor
San Francisco, CA 94115

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Noteworthy Medicare Patient Procedures Performed by Dr. Stanley Pui-Lock Leong, MD in 2024

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

Top 10%

By Volume:

lymph node procedures

In 2024, Dr. Stanley Pui-Lock Leong, MD performed more lymph node procedures procedures for Medicare patients than 90% of providers in related specialties within California.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Stanley Pui-Lock Leong, MD treated as a surgical oncologist in San Francisco, CA during 2012 were lymph node procedures, open surgery, diagnostic procedures and excision.

Volume of procedures performed by Dr. Stanley Pui-Lock Leong, MD for Medicare patients.

diagnostic procedures	45
doctor visit	81
excision	45
lymph node procedures	93
open surgery	45

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Stanley Pui-Lock Leong, MD treated as a surgical oncologist in San Francisco, CA during 2013 were lymph node procedures, open surgery, diagnostic procedures and excision.

Volume of procedures performed by Dr. Stanley Pui-Lock Leong, MD for Medicare patients.

diagnostic procedures	33
doctor visit	95
excision	33
lymph node procedures	65
open surgery	33

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD.

**Gender**
Male	66
Female	33

**Age**
From 65 to 74	45
From 75 to 84	34
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD in 2013

Hypertension	63
High Cholesterol	47
Stroke	0
Ischemic Heart Disease	36
Depression	14
Chronic Kidney Disease	18
Asthma	0
Osteoperosis	0
Atrial Fibrilation	11
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	11
Dementia	0
Cancer	23

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Stanley Pui-Lock Leong, MD treated as a surgical oncologist in San Francisco, CA during 2014 were lymph node procedures, diagnostic procedures, open surgery and excision.

Volume of procedures performed by Dr. Stanley Pui-Lock Leong, MD for Medicare patients.

diagnostic procedures	60
doctor visit	104
excision	46
lymph node procedures	86
open surgery	46

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD.

**Gender**
Male	59
Female	42

**Ethnicity**
Non-Hispanic White	89
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	58
From 75 to 84	31
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD in 2014

Hypertension	59
High Cholesterol	49
Stroke	0
Ischemic Heart Disease	35
Depression	11
Chronic Kidney Disease	14
Asthma	0
Osteoperosis	0
Atrial Fibrilation	11
Heart Failure	11
Chronic Obstructive Pulmonary Disease	0
Diabetes	20
Dementia	0
Cancer	18

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Stanley Pui-Lock Leong, MD treated as a surgical oncologist in San Francisco, CA during 2015 were lymph node procedures, diagnostic procedures, open surgery and excision.

Volume of procedures performed by Dr. Stanley Pui-Lock Leong, MD for Medicare patients.

diagnostic procedures	38
doctor visit	150
excision	23
lymph node procedures	55
open surgery	23

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD.

**Gender**
Male	150
Female	112

**Ethnicity**
Non-Hispanic White	238
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	120
From 75 to 84	80
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD in 2015

Hypertension	60
High Cholesterol	59
Stroke	0
Ischemic Heart Disease	33
Depression	18
Chronic Kidney Disease	22
Asthma	9
Osteoperosis	0
Atrial Fibrilation	15
Heart Failure	13
Chronic Obstructive Pulmonary Disease	8
Diabetes	20
Dementia	0
Cancer	17

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Stanley Pui-Lock Leong, MD treated as a surgical oncologist in San Francisco, CA during 2016 were lymph node procedures, open surgery, diagnostic procedures and excision.

Volume of procedures performed by Dr. Stanley Pui-Lock Leong, MD for Medicare patients.

diagnostic procedures	44
doctor visit	150
excision	44
lymph node procedures	82
open surgery	44

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD.

**Gender**
Male	67
Female	52

**Ethnicity**
Non-Hispanic White	105
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	65
From 75 to 84	32
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD in 2016

Hypertension	55
High Cholesterol	49
Stroke	0
Ischemic Heart Disease	29
Depression	11
Chronic Kidney Disease	26
Asthma	12
Osteoperosis	0
Atrial Fibrilation	12
Heart Failure	10
Chronic Obstructive Pulmonary Disease	0
Diabetes	19
Dementia	9
Cancer	12

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Stanley Pui-Lock Leong, MD treated as a surgical oncologist in San Francisco, CA during 2017 were lymph node procedures, open surgery, diagnostic procedures and excision.

Volume of procedures performed by Dr. Stanley Pui-Lock Leong, MD for Medicare patients.

diagnostic procedures	33
doctor visit	172
excision	33
lymph node procedures	64
open surgery	33

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD.

**Gender**
Male	60
Female	69

**Ethnicity**
Non-Hispanic White	109
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	72
From 75 to 84	39
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD in 2017

Hypertension	58
High Cholesterol	43
Stroke	0
Ischemic Heart Disease	24
Depression	16
Chronic Kidney Disease	14
Asthma	0
Osteoperosis	9
Atrial Fibrilation	13
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	16
Dementia	9
Cancer	17

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Stanley Pui-Lock Leong, MD treated as a surgical oncologist in San Francisco, CA during 2018 were lymph node procedures, diagnostic procedures, open surgery and excision.

Volume of procedures performed by Dr. Stanley Pui-Lock Leong, MD for Medicare patients.

diagnostic procedures	60
doctor visit	162
excision	42
lymph node procedures	82
open surgery	42
plastic surgery procedures	15
reconstructive surgery	15
tissue transfer	15
wound repair (e.g. stitches)	15

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD.

**Gender**
Male	79
Female	66

**Ethnicity**
Non-Hispanic White	131
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	76
From 75 to 84	49
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD in 2018

Hypertension	58
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	23
Depression	14
Chronic Kidney Disease	15
Asthma	8
Osteoperosis	9
Atrial Fibrilation	12
Heart Failure	14
Chronic Obstructive Pulmonary Disease	0
Diabetes	16
Dementia	0
Cancer	10

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Stanley Pui-Lock Leong, MD treated as a surgical oncologist in San Francisco, CA during 2019 were lymph node procedures, open surgery, diagnostic procedures and excision.

Volume of procedures performed by Dr. Stanley Pui-Lock Leong, MD for Medicare patients.

diagnostic procedures	35
doctor visit	176
excision	35
lymph node procedures	86
open surgery	35

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD.

**Gender**
Male	96
Female	68

**Ethnicity**
Non-Hispanic White	147
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	85
From 75 to 84	57
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD in 2019

Hypertension	53
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	21
Asthma	7
Osteoperosis	0
Atrial Fibrilation	10
Heart Failure	14
Chronic Obstructive Pulmonary Disease	7
Diabetes	20
Dementia	0
Cancer	9

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Stanley Pui-Lock Leong, MD treated as a surgical oncologist in San Francisco, CA during 2020 were lymph node procedures, open surgery, diagnostic procedures and excision.

Volume of procedures performed by Dr. Stanley Pui-Lock Leong, MD for Medicare patients.

diagnostic procedures	23
doctor visit	146
excision	23
lymph node procedures	59
open surgery	23

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD.

**Gender**
Male	72
Female	66

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

**Age**
From 65 to 74	67
From 75 to 84	53
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD in 2020

Hypertension	63
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	29
Depression	17
Chronic Kidney Disease	30
Asthma	9
Osteoperosis	0
Atrial Fibrilation	16
Heart Failure	19
Chronic Obstructive Pulmonary Disease	0
Diabetes	20
Dementia	0
Cancer	14

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Stanley Pui-Lock Leong, MD treated as a surgical oncologist in San Francisco, CA during 2021 were lymph node procedures, reconstructive surgery, plastic surgery procedures and wound repair (e.g. stitches).

Volume of procedures performed by Dr. Stanley Pui-Lock Leong, MD for Medicare patients.

diagnostic procedures	29
doctor visit	158
excision	29
lymph node procedures	67
open surgery	29
plastic surgery procedures	40
reconstructive surgery	40
tissue transfer	40
wound repair (e.g. stitches)	40

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD.

**Gender**
Male	75
Female	68

**Ethnicity**
Non-Hispanic White	123
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	71
From 75 to 84	58
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD in 2021

Hypertension	60
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	27
Depression	16
Chronic Kidney Disease	22
Asthma	0
Osteoperosis	13
Atrial Fibrilation	9
Heart Failure	14
Chronic Obstructive Pulmonary Disease	8
Diabetes	22
Dementia	0
Cancer	14

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Stanley Pui-Lock Leong, MD treated as a surgical oncologist in San Francisco, CA during 2022 were lymph node procedures, open surgery, diagnostic procedures and excision.

Volume of procedures performed by Dr. Stanley Pui-Lock Leong, MD for Medicare patients.

diagnostic procedures	30
doctor visit	163
excision	30
lymph node procedures	68
open surgery	30
plastic surgery procedures	11
reconstructive surgery	11
tissue transfer	11
wound repair (e.g. stitches)	11

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD.

**Gender**
Male	77
Female	65

**Ethnicity**
Non-Hispanic White	130
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	65
From 75 to 84	59
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD in 2022

Hypertension	69
High Cholesterol	74
Stroke	0
Ischemic Heart Disease	25
Depression	13
Chronic Kidney Disease	23
Asthma	11
Osteoperosis	12
Atrial Fibrilation	18
Heart Failure	12
Chronic Obstructive Pulmonary Disease	9
Diabetes	21
Dementia	0
Cancer	23

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Stanley Pui-Lock Leong, MD treated as a surgical oncologist in San Francisco, CA during 2023 were lymph node procedures, open surgery, diagnostic procedures and excision.

Volume of procedures performed by Dr. Stanley Pui-Lock Leong, MD for Medicare patients.

diagnostic procedures	16
doctor visit	171
excision	16
lymph node procedures	35
open surgery	16
plastic surgery procedures	11
reconstructive surgery	11
tissue transfer	11
wound repair (e.g. stitches)	11

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD.

**Gender**
Male	68
Female	67

**Ethnicity**
Non-Hispanic White	118
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	76
From 75 to 84	47
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD in 2023

Hypertension	65
High Cholesterol	68
Stroke	0
Ischemic Heart Disease	20
Depression	11
Chronic Kidney Disease	14
Asthma	0
Osteoperosis	16
Atrial Fibrilation	21
Heart Failure	9
Chronic Obstructive Pulmonary Disease	0
Diabetes	18
Dementia	0
Cancer	21

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Stanley Pui-Lock Leong, MD treated as a surgical oncologist in San Francisco, CA during 2024 were lymph node procedures, open surgery, diagnostic procedures and excision.

Volume of procedures performed by Dr. Stanley Pui-Lock Leong, MD for Medicare patients.

diagnostic procedures	24
doctor visit	170
excision	24
lymph node procedures	58
open surgery	24

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD.

**Gender**
Male	83
Female	54

**Ethnicity**
Non-Hispanic White	119
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	69
From 75 to 84	54
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD in 2024

Hypertension	72
High Cholesterol	71
Stroke	0
Ischemic Heart Disease	30
Depression	0
Chronic Kidney Disease	13
Asthma	0
Osteoperosis	13
Atrial Fibrilation	20
Heart Failure	10
Chronic Obstructive Pulmonary Disease	9
Diabetes	27
Dementia	0
Cancer	20

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Stanley Pui-Lock Leong, MD for Medicare patients.

The highest averages for the top procedures that Dr. Stanley Pui-Lock Leong, MD treated as a surgical oncologist in San Francisco, CA were lymph node procedures, diagnostic procedures, open surgery and excision.

diagnostic procedures	36
doctor visit	146
excision	32
lymph node procedures	69
open surgery	32
plastic surgery procedures	19
reconstructive surgery	19
tissue transfer	19
wound repair (e.g. stitches)	19

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD.

**Gender**
Female	58
Male	73

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	110
Hispanic	0
Native American / Alaskan Native	0
Other	0

**Age**
85 and over	0
75 to 84	45
Less than 65	0
65 to 74	66

Average of Total of Conditions of Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Stanley Pui-Lock Leong, MD treated were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	56
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	23
Depression	10
Chronic Kidney Disease	17
Asthma	4
Osteoporosis	5
Heart Failure	9
Chronic Obstructive Pulmonary Disease	3
Diabetes	17
Atrial Fibrillation	12
Dementia	1
Cancer	15

Education & Training

Dr. Stanley Pui-Lock Leong, MD graduated from Tulane University School of Medicine in 1974. He has a state license in California.

Medical School: Tulane University School of Medicine (1974)

Licensed In: California

Ratings & Reviews

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General Payments

These charts describe general payments received by Dr. Stanley Pui-Lock Leong, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Merck Sharp & Dohme Corporation	$8,022 KEYTRUDA $731	NON-PRODUCT $185	SYLATRON $99	NUVARING $18	$6,988
Amgen Inc.	$6,120 IMLYGIC $4,450	$1,670
Cardinal Health 414 LLC	$5,390 LYMPHOSEEK $3,150	KIT FOR THE PREPARATION OF LYMPHOSEEK (TECHNETIUM TC 99M TILMANOCEPT) $2,205	$35
KCI USA, Inc	$1,300 VAC THERAPY $1,300
CHECKPOINT SURGICAL, INC	$1,250 Checkpoint Stimulators $1,250
Other	$3,827 LIBTAYO $533	OPDIVO $498	YERVOY $292	Zelboraf $211	STRATTICE RECONSTRUCTIVE TISSUE MATRIX BPS $83	Other $2,210

**Types of Payments**
Consulting Fee	$16,720
Food and Beverage	$4,029
Travel and Lodging	$2,622
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$1,300
Education	$1,239

Research Payments

Dr. Stanley Pui-Lock Leong, MD has received 4 research payments totaling $136,006.

Biography

Dr. Stanley Leong sees patients in San Francisco, CA. His medical specialty is surgical oncology (cancer surgery). Dr. Leong has obtained a license to practice in California.

Select Year:

Dr. Stanley Pui-Lock Leong, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Stanley Pui-Lock Leong, MD in 2024

By Volume:

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD in 2023

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

2024 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD in 2024

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Average Medicare Patient Data From 2012 - 2024

Average of Total of Conditions of Medicare patients treated by Dr. Stanley Pui-Lock Leong, MD From 2012 - 2024

Education & Training

Ratings & Reviews

General Payments

Research Payments

Biography

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