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Dr. Nicholas John Karis, MD, FACS

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Specializes in: Thoracic Surgery
Rosalind Franklin University of Medicine and Science, Chicago Medical School
1415 Portland Avenue Suite 240
Rochester, NY 14621

Dr. Nicholas John Karis, MD, FACS is a thoracic surgeon in Baltimore, MD specializing in thoracic surgery. He graduated from Rosalind Franklin University of Medicine and Science, Chicago Medical School. Dr. Nicholas John Karis, MD, FACS is affiliated with GBMC Healthcare and Sinai Hospital of Baltimore.

View Doctor's Full Profile (585) 544-6550

Office Locations

2535 W. Belvedere Avenue Suite 46
Baltimore, MD 21215
open_in_new
1415 Portland Avenue Suite 240
Rochester, NY 14621
(585) 544-6550
open_in_new

In The News 

“Under the leadership of Dr. Nicholas Karis, Division Chief of Thoracic Surgery, we've expanded our lung screening services, connecting patients with a team dedicated to education, early detection,...”—"LifeBridge Health's lung screenings: Early detection, better outcomes and smoking cessation support", CBS News, January 2025

Noteworthy Medicare Patient Procedures Performed by Dr. Nicholas John Karis, MD, FACS in 2023

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

Top 25%

By Affordability:

lymph node excision

In 2013, Dr. Nicholas John Karis, MD, FACS had a list price for lymph node excision that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Maryland. 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

2013 Medicare Procedure Volume

The top procedures that Dr. Nicholas John Karis, MD, FACS treated as a thoracic surgeon in Baltimore, MD during 2013 were bronchoscopy and minimally invasive procedures.

Volume of procedures performed by Dr. Nicholas John Karis, MD, FACS for Medicare patients.

bronchoscopy 20
doctor visit 25
minimally invasive procedures 20

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Nicholas John Karis, MD, FACS.

Gender
Male 26
Female 30
Ethnicity
Non-Hispanic White 41
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 24
From 75 to 84 13
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Nicholas John Karis, MD, FACS in 2013

The most common conditions of Medicare patients that Dr. Nicholas John Karis, MD, FACS treated during 2013 were hypertension, high cholesterol, ischemic heart disease and cancer.

Hypertension 75
High Cholesterol 68
Stroke 0
Ischemic Heart Disease 54
Depression 46
Chronic Kidney Disease 34
Asthma 0
Osteoperosis 0
Atrial Fibrilation 30
Heart Failure 36
Chronic Obstructive Pulmonary Disease 32
Diabetes 43
Dementia 0
Cancer 46

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Nicholas John Karis, MD, FACS treated as a thoracic surgeon in Baltimore, MD during 2014 were minimally invasive procedures, bronchoscopy, thoracic (chest) surgery procedures and dissection.

Volume of procedures performed by Dr. Nicholas John Karis, MD, FACS for Medicare patients.

bronchoscopy 33
dissection 13
doctor visit 26
excision 13
lobectomy 11
lymph node procedures 13
minimally invasive procedures 57
thoracic (chest) surgery procedures 24

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Nicholas John Karis, MD, FACS.

Gender
Male 39
Female 21
Ethnicity
Non-Hispanic White 45
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 0
From 75 to 84 20
85 and over 0
Less than 65 19

Conditions of Medicare patients treated by Dr. Nicholas John Karis, MD, FACS in 2014

The most common conditions of Medicare patients that Dr. Nicholas John Karis, MD, FACS treated during 2014 were hypertension, high cholesterol, chronic obstructive pulmonary disease and ischemic heart disease.

Hypertension 75
High Cholesterol 65
Stroke 0
Ischemic Heart Disease 57
Depression 45
Chronic Kidney Disease 50
Asthma 0
Osteoperosis 0
Atrial Fibrilation 32
Heart Failure 50
Chronic Obstructive Pulmonary Disease 60
Diabetes 35
Dementia 0
Cancer 50

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Nicholas John Karis, MD, FACS treated as a thoracic surgeon in Baltimore, MD during 2015 were bronchoscopy, minimally invasive procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Nicholas John Karis, MD, FACS for Medicare patients.

bronchoscopy 39
doctor visit 37
hospital care 15
inpatient care 15
minimally invasive procedures 39

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Nicholas John Karis, MD, FACS.

Gender
Male 76
Female 68
Ethnicity
Non-Hispanic White 114
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 60
From 75 to 84 34
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Nicholas John Karis, MD, FACS in 2015

The most common conditions of Medicare patients that Dr. Nicholas John Karis, MD, FACS treated during 2015 were hypertension, high cholesterol, cancer and chronic kidney disease.

Hypertension 75
High Cholesterol 61
Stroke 0
Ischemic Heart Disease 40
Depression 42
Chronic Kidney Disease 49
Asthma 31
Osteoperosis 0
Atrial Fibrilation 25
Heart Failure 43
Chronic Obstructive Pulmonary Disease 49
Diabetes 35
Dementia 0
Cancer 49

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Nicholas John Karis, MD, FACS treated as a thoracic surgeon in Baltimore, MD during 2016 were minimally invasive procedures, bronchoscopy, hospital care and inpatient care.

Volume of procedures performed by Dr. Nicholas John Karis, MD, FACS for Medicare patients.

bronchoscopy 40
doctor visit 36
hospital care 18
inpatient care 18
minimally invasive procedures 54
thoracic (chest) surgery procedures 14

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Nicholas John Karis, MD, FACS.

Gender
Male 35
Female 41
Ethnicity
Non-Hispanic White 63
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 32
From 75 to 84 20
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Nicholas John Karis, MD, FACS in 2016

The most common conditions of Medicare patients that Dr. Nicholas John Karis, MD, FACS treated during 2016 were hypertension, high cholesterol, cancer and chronic kidney disease.

Hypertension 75
High Cholesterol 74
Stroke 0
Ischemic Heart Disease 43
Depression 37
Chronic Kidney Disease 51
Asthma 49
Osteoperosis 0
Atrial Fibrilation 21
Heart Failure 39
Chronic Obstructive Pulmonary Disease 47
Diabetes 46
Dementia 14
Cancer 54

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Nicholas John Karis, MD, FACS treated as a thoracic surgeon in Baltimore, MD during 2017 were hospital care, inpatient care, thoracic (chest) surgery procedures and minimally invasive procedures.

Volume of procedures performed by Dr. Nicholas John Karis, MD, FACS for Medicare patients.

doctor visit 37
hospital care 21
inpatient care 21
minimally invasive procedures 12
thoracic (chest) surgery procedures 12

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Nicholas John Karis, MD, FACS.

Gender
Male 35
Female 47
Ethnicity
Non-Hispanic White 60
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 33
From 75 to 84 0
85 and over 0
Less than 65 25

Conditions of Medicare patients treated by Dr. Nicholas John Karis, MD, FACS in 2017

The most common conditions of Medicare patients that Dr. Nicholas John Karis, MD, FACS treated during 2017 were hypertension, high cholesterol, chronic kidney disease and chronic obstructive pulmonary disease.

Hypertension 75
High Cholesterol 52
Stroke 0
Ischemic Heart Disease 41
Depression 39
Chronic Kidney Disease 48
Asthma 16
Osteoperosis 0
Atrial Fibrilation 20
Heart Failure 38
Chronic Obstructive Pulmonary Disease 45
Diabetes 34
Dementia 13
Cancer 37

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Nicholas John Karis, MD, FACS treated as a thoracic surgeon in Baltimore, MD during 2018 were thoracic (chest) surgery procedures, minimally invasive procedures, excision and dissection.

Volume of procedures performed by Dr. Nicholas John Karis, MD, FACS for Medicare patients.

dissection 17
doctor visit 35
excision 30
hospital care 14
inpatient care 14
lobectomy 13
lymph node procedures 17
minimally invasive procedures 57
thoracic (chest) surgery procedures 57

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Nicholas John Karis, MD, FACS.

Gender
Male 47
Female 37
Ethnicity
Non-Hispanic White 65
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 30
From 75 to 84 27
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Nicholas John Karis, MD, FACS in 2018

The most common conditions of Medicare patients that Dr. Nicholas John Karis, MD, FACS treated during 2018 were hypertension, high cholesterol, chronic kidney disease and chronic obstructive pulmonary disease.

Hypertension 75
High Cholesterol 74
Stroke 0
Ischemic Heart Disease 52
Depression 42
Chronic Kidney Disease 57
Asthma 0
Osteoperosis 0
Atrial Fibrilation 25
Heart Failure 48
Chronic Obstructive Pulmonary Disease 55
Diabetes 46
Dementia 14
Cancer 49

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Nicholas John Karis, MD, FACS treated as a thoracic surgeon in Baltimore, MD during 2019 were hospital care, inpatient care, thoracic (chest) surgery procedures and minimally invasive procedures.

Volume of procedures performed by Dr. Nicholas John Karis, MD, FACS for Medicare patients.

dissection 13
doctor visit 22
excision 13
hospital care 29
inpatient care 29
lobectomy 13
lymph node procedures 13
minimally invasive procedures 26
thoracic (chest) surgery procedures 26

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Nicholas John Karis, MD, FACS.

Gender
Male 49
Female 29
Ethnicity
Non-Hispanic White 51
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 34
From 75 to 84 27
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Nicholas John Karis, MD, FACS in 2019

The most common conditions of Medicare patients that Dr. Nicholas John Karis, MD, FACS treated during 2019 were hypertension, high cholesterol, chronic kidney disease and ischemic heart disease.

Hypertension 75
High Cholesterol 65
Stroke 0
Ischemic Heart Disease 59
Depression 37
Chronic Kidney Disease 63
Asthma 15
Osteoperosis 0
Atrial Fibrilation 17
Heart Failure 46
Chronic Obstructive Pulmonary Disease 56
Diabetes 51
Dementia 24
Cancer 51

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Nicholas John Karis, MD, FACS treated as a thoracic surgeon in Baltimore, MD during 2020 were hospital care, inpatient care, thoracic (chest) surgery procedures and minimally invasive procedures.

Volume of procedures performed by Dr. Nicholas John Karis, MD, FACS for Medicare patients.

dissection 12
doctor visit 31
excision 12
hospital care 122
inpatient care 122
lymph node procedures 12
minimally invasive procedures 25
thoracic (chest) surgery procedures 25

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Nicholas John Karis, MD, FACS.

Gender
Male 47
Female 50
Ethnicity
Non-Hispanic White 52
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 34
From 75 to 84 31
85 and over 17
Less than 65 15

Conditions of Medicare patients treated by Dr. Nicholas John Karis, MD, FACS in 2020

The most common conditions of Medicare patients that Dr. Nicholas John Karis, MD, FACS treated during 2020 were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension 75
High Cholesterol 72
Stroke 13
Ischemic Heart Disease 67
Depression 37
Chronic Kidney Disease 62
Asthma 15
Osteoperosis 0
Atrial Fibrilation 22
Heart Failure 38
Chronic Obstructive Pulmonary Disease 48
Diabetes 43
Dementia 37
Cancer 32

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Nicholas John Karis, MD, FACS treated as a thoracic surgeon in Baltimore, MD during 2021 were hospital care, inpatient care, thoracostomy and thoracic (chest) surgery procedures.

Volume of procedures performed by Dr. Nicholas John Karis, MD, FACS for Medicare patients.

doctor visit 55
hospital care 57
inpatient care 57
open surgery 12
thoracic (chest) surgery procedures 12
thoracostomy 12

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Nicholas John Karis, MD, FACS.

Gender
Male 43
Female 53
Ethnicity
Non-Hispanic White 46
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 46
From 75 to 84 27
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Nicholas John Karis, MD, FACS in 2021

The most common conditions of Medicare patients that Dr. Nicholas John Karis, MD, FACS treated during 2021 were hypertension, high cholesterol, chronic kidney disease and ischemic heart disease.

Hypertension 75
High Cholesterol 69
Stroke 0
Ischemic Heart Disease 50
Depression 32
Chronic Kidney Disease 53
Asthma 13
Osteoperosis 15
Atrial Fibrilation 13
Heart Failure 28
Chronic Obstructive Pulmonary Disease 43
Diabetes 43
Dementia 21
Cancer 39

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Nicholas John Karis, MD, FACS treated as a thoracic surgeon in Baltimore, MD during 2022 were thoracic (chest) surgery procedures, minimally invasive procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Nicholas John Karis, MD, FACS for Medicare patients.

dissection 19
doctor visit 121
excision 35
hospital care 46
inpatient care 46
lobectomy 15
lymph node procedures 19
minimally invasive procedures 50
open surgery 11
thoracic (chest) surgery procedures 61
thoracostomy 11

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Nicholas John Karis, MD, FACS.

Gender
Male 55
Female 59
Ethnicity
Non-Hispanic White 60
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 51
From 75 to 84 41
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Nicholas John Karis, MD, FACS in 2022

The most common conditions of Medicare patients that Dr. Nicholas John Karis, MD, FACS treated during 2022 were high cholesterol, hypertension, cancer and chronic obstructive pulmonary disease.

Hypertension 75
High Cholesterol 75
Stroke 17
Ischemic Heart Disease 41
Depression 32
Chronic Kidney Disease 32
Asthma 17
Osteoperosis 12
Atrial Fibrilation 22
Heart Failure 25
Chronic Obstructive Pulmonary Disease 50
Diabetes 46
Dementia 12
Cancer 57

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Nicholas John Karis, MD, FACS treated as a thoracic surgeon in Baltimore, MD during 2023 were thoracic (chest) surgery procedures, minimally invasive procedures, excision and hospital care.

Volume of procedures performed by Dr. Nicholas John Karis, MD, FACS for Medicare patients.

dissection 15
doctor visit 129
excision 27
hospital care 24
inpatient care 24
lymph node procedures 15
minimally invasive procedures 27
thoracic (chest) surgery procedures 27

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Nicholas John Karis, MD, FACS.

Gender
Male 78
Female 62
Ethnicity
Non-Hispanic White 66
Black 61
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 61
From 75 to 84 54
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Nicholas John Karis, MD, FACS in 2023

The most common conditions of Medicare patients that Dr. Nicholas John Karis, MD, FACS treated during 2023 were high cholesterol, hypertension, cancer and chronic obstructive pulmonary disease.

Hypertension 75
High Cholesterol 75
Stroke 15
Ischemic Heart Disease 43
Depression 26
Chronic Kidney Disease 28
Asthma 16
Osteoperosis 13
Atrial Fibrilation 18
Heart Failure 24
Chronic Obstructive Pulmonary Disease 54
Diabetes 44
Dementia 16
Cancer 59

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2013 - 2023

Volume of procedures performed by Dr. Nicholas John Karis, MD, FACS for Medicare patients.

The highest averages for the top procedures that Dr. Nicholas John Karis, MD, FACS treated as a thoracic surgeon in Baltimore, MD were hospital care, inpatient care, minimally invasive procedures and bronchoscopy.

bronchoscopy 33
dissection 14
doctor visit 50
excision 21
hospital care 38
inpatient care 38
lobectomy 13
lymph node procedures 14
minimally invasive procedures 36
open surgery 11
thoracic (chest) surgery procedures 28
thoracostomy 11

Average Medicare Patient Data From 2013 - 2023

Information about Medicare patients treated by Dr. Nicholas John Karis, MD, FACS.

Gender
Male 48
Female 45
Ethnicity
Black / African American 5
Asian / Pacific Islander 0
Non-Hispanic White 60
Native American / Alaskan Native 0
Hispanic 0
Other 0
Age
75 to 84 26
85 and over 1
Less than 65 5
65 to 74 36

Average of Total of Conditions of Medicare patients treated by Dr. Nicholas John Karis, MD, FACS From 2013 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Nicholas John Karis, MD, FACS treated were hypertension, high cholesterol, chronic obstructive pulmonary disease and ischemic heart disease.

Hypertension 75
High Cholesterol 68
Stroke 4
Ischemic Heart Disease 49
Depression 37
Chronic Kidney Disease 47
Asthma 15
Osteoporosis 3
Heart Failure 37
Chronic Obstructive Pulmonary Disease 49
Diabetes 42
Atrial Fibrillation 22
Cancer 47
Dementia 13

Education & Training

Dr. Nicholas John Karis, MD, FACS graduated from Rosalind Franklin University of Medicine and Science, Chicago Medical School. He completed residency at Mount Sinai Hospital, Chicago. He has a state license in Illinois.

Medical School: Rosalind Franklin University of Medicine and Science, Chicago Medical School

Residency: Mount Sinai Hospital, Chicago

Licensed In: Illinois

Affiliations & Hospitals

Dr. Nicholas John Karis, MD, FACS is associated with these hospitals and organizations:

GBMC Healthcare
Sinai Hospital of Baltimore

Ratings & Reviews

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General Payments

These charts describe general payments received by Dr. Nicholas John Karis, MD, FACS. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

Payments by Company
Intuitive Surgical, Inc. $14,578 Da Vinci Surgical System
$14,578
Ethicon US, LLC $702 ECHELON FLEX Stapler
$404 		Biosurgicals
$213 		Echelon; Endopath
$35 		ECHELON ENDOPATH
$35 		ECHELON ENDOPATH Stapler
$14
Neomend, Inc. $416 SURGICAL
$321 		DAV-Progel
$95
Covidien LP $303 superDimension
$154 		Endo GIA
$149
Olympus Corporation of the Americas $298 SINGLE USE SUCTION VALVE (Sterile)
$298
Other $1,340 Endo Stapling
$295 		Progel
$182 		Sutures
$134 		Osteosynthesis
$106 		Spin
$104 		Other
$518
Types of Payments
Education $10,727
Food and Beverage $3,940
Travel and Lodging $2,968

Biography

Dr. Nicholas Karis is a Baltimore, MD physician who specializes in thoracic surgery. After attending Rosalind Franklin University of Medicine and Science, Chicago Medical School, he completed his residency training at Mount Sinai Hospital, Chicago. Dr. Karis is affiliated with GBMC Healthcare and Sinai Hospital of Baltimore.

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