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Dr. Lukejohn Welch Day, M.D.

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Specializes in: Adult Gastroenterology

Stanford University School of Medicine (2004)

505 Parnassus Avenue
San Francisco, CA 94143

(415) 377-2176

Dr. Lukejohn Welch Day, M.D. is a gastroenterologist in San Francisco, CA specializing in adult gastroenterology. He graduated from Stanford University School of Medicine in 2004 and has 21 years of experience. Dr. Lukejohn Welch Day, M.D. is affiliated with University of California SFGH Medical Group.

Office Locations

Address:

505 Parnassus Avenue
San Francisco, CA 94143

In The News (see more mentions in the news)

“Dr. LukeJohn Day is the Chief Medical Officer of Zuckerberg San Francisco General Hospital.”—"3 SF emergency departments have the highest percentage of unhoused patients across the state", ABC7 News, December 2022

“The city received about 4,000 doses on Friday, enabling it to restart vaccinations, and hopes to administer them by mid-week, said Dr. Lukejohn Day, chief medical officer at the Zuckerberg San...”—"California governor declares monkeypox state of emergency", Yahoo News, August 2022

“On Saturday, Dr. Lukejohn Day, the Chief Medical Officer for Zuckerberg San Francisco General Hospital, told KPIX 5: "It's skin-to-skin contact, so anyone who comes into contact with the lesion...”—"Stanford experts document non-sexual transmission of monkeypox", CBS Detroit, August 2022

diagnostic procedures	101
gastrointestinal procedures	124
hospital care	20
inpatient care	20
minimally invasive procedures	124
preventive care	23
removal of lesion (e.g. growth)	101

**Gender**
Male	76
Female	56

**Ethnicity**
Non-Hispanic White	25
Black	0
Hispanic	47
Asian	36
Other	0
Native American	0

**Age**
From 65 to 74	56
From 75 to 84	0
85 and over	0
Less than 65	45

Hypertension	58
High Cholesterol	38
Stroke	0
Ischemic Heart Disease	21
Depression	23
Chronic Kidney Disease	27
Asthma	8
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	12
Chronic Obstructive Pulmonary Disease	10
Diabetes	36
Dementia	0
Cancer	11

diagnostic procedures	107
gastrointestinal procedures	126
minimally invasive procedures	126
preventive care	19
removal of lesion (e.g. growth)	107

**Gender**
Male	65
Female	55

**Ethnicity**
Non-Hispanic White	30
Black	0
Hispanic	33
Asian	31
Other	0
Native American	0

**Age**
From 65 to 74	54
From 75 to 84	0
85 and over	0
Less than 65	53

Hypertension	58
High Cholesterol	36
Stroke	0
Ischemic Heart Disease	18
Depression	31
Chronic Kidney Disease	23
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	11
Chronic Obstructive Pulmonary Disease	0
Diabetes	33
Dementia	0
Cancer	13

diagnostic procedures	167
gastrointestinal procedures	192
minimally invasive procedures	192
preventive care	25
removal of lesion (e.g. growth)	167

**Gender**
Male	226
Female	172

**Ethnicity**
Non-Hispanic White	86
Black	0
Hispanic	108
Asian	110
Other	0
Native American	0

**Age**
From 65 to 74	200
From 75 to 84	0
85 and over	0
Less than 65	126

Hypertension	66
High Cholesterol	47
Stroke	0
Ischemic Heart Disease	24
Depression	32
Chronic Kidney Disease	27
Asthma	12
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	13
Chronic Obstructive Pulmonary Disease	16
Diabetes	40
Dementia	6
Cancer	11

diagnostic procedures	166
gastrointestinal procedures	194
hospital care	13
inpatient care	13
minimally invasive procedures	194
preventive care	28
removal of lesion (e.g. growth)	166

**Gender**
Male	100
Female	89

**Ethnicity**
Non-Hispanic White	41
Black	54
Hispanic	0
Asian	51
Other	0
Native American	0

**Age**
From 65 to 74	103
From 75 to 84	0
85 and over	0
Less than 65	59

Hypertension	61
High Cholesterol	34
Stroke	0
Ischemic Heart Disease	17
Depression	29
Chronic Kidney Disease	30
Asthma	18
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	14
Chronic Obstructive Pulmonary Disease	15
Diabetes	37
Dementia	8
Cancer	11

diagnostic procedures	165
gastrointestinal procedures	195
hospital care	16
inpatient care	16
minimally invasive procedures	195
preventive care	30
removal of lesion (e.g. growth)	165

**Gender**
Male	108
Female	74

**Ethnicity**
Non-Hispanic White	41
Black	47
Hispanic	49
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	101
From 75 to 84	0
85 and over	0
Less than 65	51

Hypertension	64
High Cholesterol	31
Stroke	7
Ischemic Heart Disease	21
Depression	30
Chronic Kidney Disease	32
Asthma	7
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	14
Chronic Obstructive Pulmonary Disease	13
Diabetes	30
Dementia	9
Cancer	7

diagnostic procedures	147
gastrointestinal procedures	167
hospital care	63
inpatient care	63
minimally invasive procedures	167
preventive care	20
removal of lesion (e.g. growth)	147

**Gender**
Male	111
Female	76

**Ethnicity**
Non-Hispanic White	43
Black	0
Hispanic	50
Asian	53
Other	0
Native American	0

**Age**
From 65 to 74	101
From 75 to 84	0
85 and over	0
Less than 65	52

Hypertension	60
High Cholesterol	36
Stroke	0
Ischemic Heart Disease	22
Depression	29
Chronic Kidney Disease	35
Asthma	7
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	17
Chronic Obstructive Pulmonary Disease	14
Diabetes	39
Dementia	6
Cancer	12

diagnostic procedures	62
gastrointestinal procedures	79
hospital care	23
inpatient care	23
minimally invasive procedures	79
preventive care	17
removal of lesion (e.g. growth)	62

**Gender**
Male	63
Female	35

**Ethnicity**
Non-Hispanic White	24
Black	21
Hispanic	0
Asian	29
Other	0
Native American	0

**Age**
From 65 to 74	60
From 75 to 84	0
85 and over	0
Less than 65	19

Hypertension	59
High Cholesterol	38
Stroke	0
Ischemic Heart Disease	24
Depression	23
Chronic Kidney Disease	33
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	18
Chronic Obstructive Pulmonary Disease	13
Diabetes	37
Dementia	11
Cancer	0

diagnostic procedures	98
gastrointestinal procedures	109
hospital care	17
inpatient care	17
minimally invasive procedures	109
preventive care	11
removal of lesion (e.g. growth)	98

**Gender**
Male	58
Female	54

**Ethnicity**
Non-Hispanic White	29
Black	0
Hispanic	24
Asian	34
Other	0
Native American	0

**Age**
From 65 to 74	68
From 75 to 84	0
85 and over	0
Less than 65	28

Hypertension	63
High Cholesterol	34
Stroke	0
Ischemic Heart Disease	24
Depression	34
Chronic Kidney Disease	39
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	16
Chronic Obstructive Pulmonary Disease	17
Diabetes	39
Dementia	14
Cancer	14

diagnostic procedures	216
gastrointestinal procedures	250
hospital care	10
inpatient care	10
minimally invasive procedures	250
preventive care	34
removal of lesion (e.g. growth)	216

Average Medicare Procedure Volume From 2013 - 2021

Volume of procedures performed by Dr. Lukejohn Welch Day, M.D. for Medicare patients.

The highest averages for the top procedures that Dr. Lukejohn Welch Day, M.D. treated as a gastroenterologist in San Francisco, CA were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

diagnostic procedures	136
gastrointestinal procedures	159
hospital care	23
inpatient care	23
minimally invasive procedures	159
preventive care	23
removal of lesion (e.g. growth)	136

Average Medicare Patient Data From 2013 - 2021

Information about Medicare patients treated by Dr. Lukejohn Welch Day, M.D..

**Gender**
Male	80
Female	61

**Ethnicity**
Black / African American	12
Asian / Pacific Islander	34
Non-Hispanic White	31
Native American / Alaskan Native	0
Hispanic	31
Other	0

**Age**
85 and over	0
75 to 84	0
Less than 65	43
65 to 74	74

Average of Total of Conditions of Medicare patients treated by Dr. Lukejohn Welch Day, M.D. From 2013 - 2021

The highest averages of the most common conditions of Medicare patients that Dr. Lukejohn Welch Day, M.D. treated were hypertension, diabetes, high cholesterol and chronic kidney disease.

Hypertension	48
High Cholesterol	29
Stroke	0
Ischemic Heart Disease	17
Depression	23
Chronic Kidney Disease	24
Asthma	5
Osteoporosis	0
Heart Failure	11
Chronic Obstructive Pulmonary Disease	9
Diabetes	29
Atrial Fibrillation	0
Dementia	5
Cancer	7

Education & Training

Dr. Lukejohn Welch Day, M.D. graduated from Stanford University School of Medicine in 2004. He has a state license in California.

Medical School: Stanford University School of Medicine (2004)

Licensed In: California

Affiliations & Hospitals

Dr. Lukejohn Welch Day, M.D. is associated with these hospitals and organizations:

University of California SFGH Medical Group

Ratings & Reviews

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Biography

Dr. Lukejohn Day sees patients in San Francisco, CA. His medical specialty is adult gastroenterology. He is affiliated with the University of California SFGH Medical Group. Dr. Day studied medicine at Stanford University School of Medicine.