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Dr. Stephen Lawler Hasak, MD, MPH

(1 Rating)

Specializes in: Adult Gastroenterology

Albany Medical College (2013)

Professional interests include: esophageal cancer, cancer, acid reflux (GERD), and more.

1 Barnes Jewish Hospital Plaza
Saint Louis, MO 63110

(314) 747-2075

Dr. Stephen Lawler Hasak, MD, MPH is a gastroenterologist in Saint Louis, MO specializing in adult gastroenterology. He graduated from Albany Medical College in 2013 and has 12 years of experience. Dr. Stephen Lawler Hasak, MD, MPH is affiliated with Albany Medical Center and Albany Medical College.

Office Locations

1 Barnes Jewish Hospital Plaza
Saint Louis, MO 63110

(314) 747-2075

(314) 454-5042

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250 Delaware Avenue Suite 202
Delmar, NY 12054

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Albany Medical Center

43 New Scotland Avenue James J. Barba Physicians Pavilion (a Building), Floor 4, Suite 48
Albany, NY 12208

(518) 262-5276

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453 Route 146 Suite 204
Clifton Park, NY 12065

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Some issues Dr. Stephen Lawler Hasak, MD, MPH can help you with:

Gastrointestinal Problems (Digestive Disorders)

The gastrointestinal system, or GI tract, is the name given to a collection of organs that work together to digest food. These organs fit together in a long tube, running from the mouth to the anus, and include the esophagus, stomach, and intestines, among others. With so many parts working together, complicated by today's busy lifestyles and diets, digestive problems are common. As many as 1 in 3 Americans have a digestive or GI disorder. There are a huge variety of digestive problems, but the most common are IBS, constipation, GERD, hemorrhoids, and ulcers.

IBS, or irritable bowel syndrome, happens when the muscles surrounding the colon contract too easily or frequently. The result is abdominal pain, cramps, diarrhea or constipation, gas and bloating. IBS attacks can often be brought on by specific triggers, so a key part of treatment is learning which foods trigger IBS attacks and avoiding them. Treatment also includes exercise, avoiding stress, and medications if needed.

Constipation, or large, hard, or infrequent stools, happens to everyone at some point. It can be caused by a disruption in routine or food, or by eating a diet without many fresh fruits and vegetables. Although it is uncomfortable, constipation is common and usually not serious, but it can sometimes become chronic. Adding fiber to the diet, exercising, and taking medications may help.

GERD, or gastroesophageal reflux disease, is a severe form of chronic heartburn where stomach acid spills back up into the esophagus. Left untreated, the acid may even eat away at the esophagus and cause serious damage. Treatment includes changing the diet to avoid trigger foods, losing weight if needed, medications, or even surgery.

Hemorrhoids are blood vessels around the rectum that become irritated, swollen or torn while straining during a bowel movement. They are most often caused by constipation, but can also be caused by pregnancy, diarrhea, or simply a genetic predisposition towards hemorrhoids. Treatment involves first treating any constipation issues, then keeping the area clean and soothed until it has healed. If these measures are ineffective, surgery is sometimes used.

Peptic ulcers are sores or spots of inflammation in the lining of the stomach or close to the stomach in the small intestine. Usually this area is coated with a protective lining that shields the tissue from the strong stomach acid, but a break in the lining can let acid in, causing the sores. It used to be thought that stress caused ulcers, but now it is known that is not the case. Most often, they are caused by an infection by H. pylori bacteria, but ulcers can also be caused by alcohol abuse or overuse of aspirin, ibuprofen, naproxen, or other NSAIDS. The symptoms of an ulcer are pain, hunger, nausea, and fatigue.

Gastrointestinal problems, perhaps more than any other area, are markedly affected by lifestyle. Many disorders can be prevented or treated at least in part by eating a healthy diet high in fiber, exercising regularly, drinking enough water, and limiting alcohol intake. Still, the frequency of digestive disorders means that even the healthiest person can be affected by them. Anyone who notices blood in their stool, experiences abdominal pain, unexplained weight loss, or any significant change in bowel movements should see a doctor.

Noteworthy Medicare Patient Procedures Performed by Dr. Stephen Lawler Hasak, MD, MPH in 2023

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

Top 5%

By Volume:

EGD with endoscopic ultrasound

endoscopy

ERCP with foreign body removal

ERCP with stent placement

gastrointestinal procedures

In 2023, Dr. Stephen Lawler Hasak, MD, MPH performed more EGD with endoscopic ultrasound, endoscopy, ERCP with foreign body removal, ERCP with stent placement, and gastrointestinal procedures procedures for Medicare patients than 95% of providers in related specialties within Missouri.

Top 25%

By Volume:

EGD with biopsy

EGD with lesion removal

inpatient hospital care

By Affordability:

ERCP with foreign body removal

ERCP with papillotomy

ERCP with sphincterotomy

ERCP with stent placement

ERCP with stent removal

ERCP with stent replacement

In 2013, among providers in related specialties within Missouri, Dr. Stephen Lawler Hasak, MD, MPH performed more EGD with biopsy, EGD with lesion removal, and inpatient hospital care (for patient admitted to hospital) procedures for Medicare patients than 75% of them and he also had a list price for ERCP with foreign body removal, ERCP with papillotomy, ERCP with sphincterotomy, ERCP with stent placement, ERCP with stent removal, and ERCP with stent replacement that was lower than the list prices billed to Medicare by 75% of them. 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

2019 Medicare Procedure Volume

The top procedures that Dr. Stephen Lawler Hasak, MD, MPH treated as a gastroenterologist in Saint Louis, MO during 2019 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Stephen Lawler Hasak, MD, MPH for Medicare patients.

diagnostic procedures	41
gastrointestinal procedures	85
hospital care	12
inpatient care	12
minimally invasive procedures	85
preventive care	16
removal of lesion (e.g. growth)	41

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Stephen Lawler Hasak, MD, MPH.

**Gender**
Male	55
Female	57

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

**Age**
From 65 to 74	48
From 75 to 84	24
85 and over	12
Less than 65	28

Conditions of Medicare patients treated by Dr. Stephen Lawler Hasak, MD, MPH in 2019

The most common conditions of Medicare patients that Dr. Stephen Lawler Hasak, MD, MPH treated during 2019 were chronic kidney disease, hypertension, ischemic heart disease and high cholesterol.

Hypertension	75
High Cholesterol	67
Stroke	12
Ischemic Heart Disease	70
Depression	46
Chronic Kidney Disease	75
Asthma	12
Osteoperosis	15
Atrial Fibrilation	26
Heart Failure	51
Chronic Obstructive Pulmonary Disease	32
Diabetes	53
Dementia	27
Cancer	13

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Stephen Lawler Hasak, MD, MPH treated as a gastroenterologist in Saint Louis, MO during 2020 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Stephen Lawler Hasak, MD, MPH for Medicare patients.

diagnostic procedures	87
doctor visit	12
gastrointestinal procedures	147
hospital care	139
inpatient care	139
minimally invasive procedures	147
preventive care	17
removal of lesion (e.g. growth)	87
ultrasound (sonogram)	25

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Stephen Lawler Hasak, MD, MPH.

**Gender**
Male	103
Female	109

**Ethnicity**
Non-Hispanic White	170
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	77
From 75 to 84	53
85 and over	19
Less than 65	63

Conditions of Medicare patients treated by Dr. Stephen Lawler Hasak, MD, MPH in 2020

The most common conditions of Medicare patients that Dr. Stephen Lawler Hasak, MD, MPH treated during 2020 were hypertension, chronic kidney disease, high cholesterol and ischemic heart disease.

Hypertension	75
High Cholesterol	66
Stroke	12
Ischemic Heart Disease	57
Depression	38
Chronic Kidney Disease	67
Asthma	12
Osteoperosis	9
Atrial Fibrilation	24
Heart Failure	46
Chronic Obstructive Pulmonary Disease	32
Diabetes	47
Dementia	27
Cancer	13

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Stephen Lawler Hasak, MD, MPH treated as a gastroenterologist in Saint Louis, MO during 2021 were gastrointestinal procedures, minimally invasive procedures, inpatient care and hospital care.

Volume of procedures performed by Dr. Stephen Lawler Hasak, MD, MPH for Medicare patients.

aspiration	30
diagnostic procedures	130
doctor visit	62
foreign body removal	15
gastrointestinal procedures	396
hospital care	216
image guided procedures	30
inpatient care	216
minimally invasive procedures	396
minor procedures	30
preventive care	13
removal of lesion (e.g. growth)	130
stent placement (stenting)	55
ultrasound (sonogram)	120

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Stephen Lawler Hasak, MD, MPH.

**Gender**
Male	126
Female	149

**Ethnicity**
Non-Hispanic White	236
Black	23
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	102
From 75 to 84	83
85 and over	26
Less than 65	64

Conditions of Medicare patients treated by Dr. Stephen Lawler Hasak, MD, MPH in 2021

The most common conditions of Medicare patients that Dr. Stephen Lawler Hasak, MD, MPH treated during 2021 were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	75
High Cholesterol	68
Stroke	12
Ischemic Heart Disease	58
Depression	33
Chronic Kidney Disease	57
Asthma	12
Osteoperosis	6
Atrial Fibrilation	25
Heart Failure	31
Chronic Obstructive Pulmonary Disease	26
Diabetes	37
Dementia	20
Cancer	15

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Stephen Lawler Hasak, MD, MPH treated as a gastroenterologist in Saint Louis, MO during 2022 were gastrointestinal procedures, minimally invasive procedures, inpatient care and hospital care.

Volume of procedures performed by Dr. Stephen Lawler Hasak, MD, MPH for Medicare patients.

aspiration	42
diagnostic procedures	157
doctor visit	102
foreign body removal	35
gastrointestinal procedures	519
hospital care	290
image guided procedures	42
inpatient care	290
minimally invasive procedures	519
minor procedures	42
preventive care	12
removal of lesion (e.g. growth)	157
stent placement (stenting)	81
ultrasound (sonogram)	128

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Stephen Lawler Hasak, MD, MPH.

**Gender**
Male	148
Female	185

**Ethnicity**
Non-Hispanic White	295
Black	14
Hispanic	0
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	119
From 75 to 84	104
85 and over	45
Less than 65	65

Conditions of Medicare patients treated by Dr. Stephen Lawler Hasak, MD, MPH in 2022

The most common conditions of Medicare patients that Dr. Stephen Lawler Hasak, MD, MPH treated during 2022 were high cholesterol, hypertension, ischemic heart disease and diabetes.

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	42
Depression	31
Chronic Kidney Disease	34
Asthma	13
Osteoperosis	14
Atrial Fibrilation	31
Heart Failure	27
Chronic Obstructive Pulmonary Disease	31
Diabetes	39
Dementia	12
Cancer	21

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Stephen Lawler Hasak, MD, MPH treated as a gastroenterologist in Saint Louis, MO during 2023 were gastrointestinal procedures, minimally invasive procedures, inpatient care and hospital care.

Volume of procedures performed by Dr. Stephen Lawler Hasak, MD, MPH for Medicare patients.

aspiration	32
diagnostic procedures	171
doctor visit	136
foreign body removal	36
gastrointestinal procedures	654
hospital care	331
image guided procedures	32
inpatient care	331
minimally invasive procedures	654
minor procedures	32
preventive care	18
removal of lesion (e.g. growth)	171
stent placement (stenting)	94
ultrasound (sonogram)	125

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Stephen Lawler Hasak, MD, MPH.

**Gender**
Male	228
Female	225

**Ethnicity**
Non-Hispanic White	397
Black	24
Hispanic	0
Asian	0
Other	17
Native American	0

**Age**
From 65 to 74	172
From 75 to 84	134
85 and over	53
Less than 65	94

Conditions of Medicare patients treated by Dr. Stephen Lawler Hasak, MD, MPH in 2023

The most common conditions of Medicare patients that Dr. Stephen Lawler Hasak, MD, MPH treated during 2023 were high cholesterol, hypertension, ischemic heart disease and diabetes.

Hypertension	75
High Cholesterol	75
Stroke	14
Ischemic Heart Disease	43
Depression	30
Chronic Kidney Disease	32
Asthma	14
Osteoperosis	13
Atrial Fibrilation	29
Heart Failure	27
Chronic Obstructive Pulmonary Disease	29
Diabetes	36
Dementia	11
Cancer	21

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2019 - 2023

Volume of procedures performed by Dr. Stephen Lawler Hasak, MD, MPH for Medicare patients.

The highest averages for the top procedures that Dr. Stephen Lawler Hasak, MD, MPH treated as a gastroenterologist in Saint Louis, MO were gastrointestinal procedures, minimally invasive procedures, inpatient care and hospital care.

aspiration	34
diagnostic procedures	117
doctor visit	78
foreign body removal	28
gastrointestinal procedures	360
hospital care	197
image guided procedures	34
inpatient care	197
minimally invasive procedures	360
minor procedures	34
preventive care	15
removal of lesion (e.g. growth)	117
stent placement (stenting)	76
ultrasound (sonogram)	99

Average Medicare Patient Data From 2019 - 2023

Information about Medicare patients treated by Dr. Stephen Lawler Hasak, MD, MPH.

**Gender**
Male	132
Female	145

**Ethnicity**
Black / African American	12
Asian / Pacific Islander	0
Non-Hispanic White	234
Native American / Alaskan Native	0
Hispanic	0
Other	6

**Age**
75 to 84	79
85 and over	31
Less than 65	62
65 to 74	103

Average of Total of Conditions of Medicare patients treated by Dr. Stephen Lawler Hasak, MD, MPH From 2019 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Stephen Lawler Hasak, MD, MPH treated were hypertension, high cholesterol, chronic kidney disease and ischemic heart disease.

Hypertension	75
High Cholesterol	70
Stroke	12
Ischemic Heart Disease	54
Depression	35
Chronic Kidney Disease	53
Asthma	12
Osteoporosis	11
Heart Failure	36
Chronic Obstructive Pulmonary Disease	30
Diabetes	42
Atrial Fibrillation	27
Cancer	16
Dementia	19

Education & Training

Dr. Stephen Lawler Hasak, MD, MPH graduated from Albany Medical College in 2013. He completed residency at Barnes-Jewish Hospital. He is certified by the Gastroenterology American Board of Internal Medicine Internal Medicine American Board of Internal Medicine and has a state license in Missouri.

Medical School: Albany Medical College (2013)

Residency: Barnes-Jewish Hospital (2016)

Board Certification: Gastroenterology American Board of Internal Medicine Internal Medicine American Board of Internal Medicine (2019)

Licensed In: Missouri

Affiliations & Hospitals

Dr. Stephen Lawler Hasak, MD, MPH is associated with these hospitals and organizations:

Albany Medical Center

Albany Medical College

Ratings & Reviews

Dr. Stephen Lawler Hasak, MD, MPH has an average of 1.0 out of 5 stars based on 1 ratings. We collect ratings and reviews of Dr. Stephen Lawler Hasak, MD, MPH from all over the web to help you find the right in Saint Louis, MO.

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Overall Rating: 1.0 2023-08-21

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General Payments

These charts describe general payments received by Dr. Stephen Lawler Hasak, MD, MPH. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Cook Medical LLC	$43,432 Evolution $38	EchoTip $31	Cook Medical Evolution $12	$43,350
Boston Scientific Corporation	$25,086 GENERAL BILIARY DEVICES $12,586	General - Biliary Devices $12,500
Olympus Corporation of the Americas	$3,393 DISPOSABLE DISTAL ATTACHMENT $1,732	Single Use Electrosurgical Hemostatic Forceps $970	Olympus $514	Single Use Electrosurgical Knife KD-655 $176
AbbVie Inc.	$760 Skyrizi $554	Humira $109	Rinvoq $98
Janssen Biotech, Inc.	$486 STELARA $257	REMICADE $161	Tremfya $68
Other	$2,844 STELARA $150	GI GENIUS $149	CONMED Biliary $149	CONMED Hemostasis $130	TERLIVAZ $129	Other $2,138

**Types of Payments**
Grant	$67,700
Food and Beverage	$4,364
Travel and Lodging	$3,663
Education	$274

Biography

Dr. Stephen Hasak is a specialist in general practice and adult gastroenterology in Clifton Park, NY, Albany, NY, and Latham, NY. His clinical interests include esophageal cancer, cancer screening, and anal cancer. Dr. Hasak is professionally affiliated with Albany Medical College. He obtained his medical school training at Albany Medical College and performed his residency at Barnes-Jewish Hospital.