In 2012, Dr. John Mj Ernst, MD had a list price for carpal tunnel surgery, decompression surgery, nerve decompression surgery, nerve procedures, nerve surgery, peripheral nerve decompression surgery, and peripheral nerve surgery that was lower than the list prices billed to Medicare by 75% of providers in related specialties within South Carolina. 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. John Mj Ernst, MD treated as an orthopedist in Charleston, SC during 2012 were injections, aspiration, upper extremity surgery and X-rays.

Volume of procedures performed by Dr. John Mj Ernst, MD for Medicare patients.

aspiration	179
decompression surgery	27
doctor visit	864
injections	308
musculoskeletal imaging	41
nerve procedures	27
open surgery	27
tendon surgery	23
upper extremity surgery	50
X-rays	41

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. John Mj Ernst, MD treated as an orthopedist in Charleston, SC during 2013 were injections, aspiration, X-rays and musculoskeletal imaging.

Volume of procedures performed by Dr. John Mj Ernst, MD for Medicare patients.

aspiration	254
decompression surgery	36
doctor visit	1050
injections	407
musculoskeletal imaging	57
nerve procedures	36
open surgery	36
tendon surgery	12
upper extremity surgery	48
X-rays	57

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John Mj Ernst, MD.

**Gender**
Male	167
Female	367

**Ethnicity**
Non-Hispanic White	421
Black	95
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	278
From 75 to 84	151
85 and over	42
Less than 65	63

Conditions of Medicare patients treated by Dr. John Mj Ernst, MD in 2013

Hypertension	67
High Cholesterol	65
Stroke	3
Ischemic Heart Disease	26
Depression	20
Chronic Kidney Disease	15
Asthma	9
Osteoperosis	7
Atrial Fibrilation	7
Heart Failure	9
Chronic Obstructive Pulmonary Disease	10
Diabetes	31
Dementia	5
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. John Mj Ernst, MD treated as an orthopedist in Charleston, SC during 2014 were injections, aspiration, upper extremity surgery and X-rays.

Volume of procedures performed by Dr. John Mj Ernst, MD for Medicare patients.

aspiration	104
decompression surgery	39
doctor visit	817
injections	236
musculoskeletal imaging	40
nerve procedures	39
open surgery	39
tendon surgery	34
upper extremity surgery	73
X-rays	40

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. John Mj Ernst, MD.

**Gender**
Male	154
Female	253

**Ethnicity**
Non-Hispanic White	321
Black	70
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	217
From 75 to 84	115
85 and over	30
Less than 65	45

Conditions of Medicare patients treated by Dr. John Mj Ernst, MD in 2014

Hypertension	65
High Cholesterol	63
Stroke	0
Ischemic Heart Disease	32
Depression	17
Chronic Kidney Disease	13
Asthma	9
Osteoperosis	8
Atrial Fibrilation	7
Heart Failure	10
Chronic Obstructive Pulmonary Disease	12
Diabetes	29
Dementia	6
Cancer	10

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. John Mj Ernst, MD treated as an orthopedist in Charleston, SC during 2015 were injections, aspiration, musculoskeletal imaging and X-rays.

Volume of procedures performed by Dr. John Mj Ernst, MD for Medicare patients.

aspiration	130
closed (non-surgical) treatment of fracture	14
decompression surgery	30
doctor visit	932
excision	12
fracture reduction (setting broken bones)	14
injections	330
joint surgery	12
musculoskeletal imaging	46
nerve procedures	30
open surgery	30
removal of lesion (e.g. growth)	12
tendon surgery	12
upper extremity surgery	30
X-rays	46

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John Mj Ernst, MD.

**Gender**
Male	376
Female	726

**Ethnicity**
Non-Hispanic White	888
Black	184
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	580
From 75 to 84	310
85 and over	72
Less than 65	140

Conditions of Medicare patients treated by Dr. John Mj Ernst, MD in 2015

Hypertension	70
High Cholesterol	65
Stroke	3
Ischemic Heart Disease	28
Depression	22
Chronic Kidney Disease	17
Asthma	13
Osteoperosis	9
Atrial Fibrilation	10
Heart Failure	9
Chronic Obstructive Pulmonary Disease	14
Diabetes	28
Dementia	5
Cancer	9

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John Mj Ernst, MD treated as an orthopedist in Charleston, SC during 2016 were injections, aspiration, upper extremity surgery and X-rays.

Volume of procedures performed by Dr. John Mj Ernst, MD for Medicare patients.

aspiration	65
decompression surgery	31
doctor visit	941
excision	16
injections	255
joint surgery	16
musculoskeletal imaging	47
nerve procedures	31
open surgery	31
removal of lesion (e.g. growth)	16
tendon surgery	43
upper extremity surgery	58
X-rays	47

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John Mj Ernst, MD.

**Gender**
Male	190
Female	298

**Ethnicity**
Non-Hispanic White	390
Black	84
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	278
From 75 to 84	124
85 and over	41
Less than 65	45

Conditions of Medicare patients treated by Dr. John Mj Ernst, MD in 2016

Hypertension	65
High Cholesterol	58
Stroke	3
Ischemic Heart Disease	25
Depression	17
Chronic Kidney Disease	14
Asthma	15
Osteoperosis	6
Atrial Fibrilation	8
Heart Failure	8
Chronic Obstructive Pulmonary Disease	13
Diabetes	30
Dementia	5
Cancer	11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John Mj Ernst, MD treated as an orthopedist in Charleston, SC during 2017 were injections, aspiration, nerve procedures and open surgery.

Volume of procedures performed by Dr. John Mj Ernst, MD for Medicare patients.

aspiration	74
decompression surgery	34
diabetes management	21
doctor visit	845
injections	238
lab tests	21
musculoskeletal imaging	34
nerve procedures	34
open surgery	34
upper extremity surgery	34
X-rays	34

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John Mj Ernst, MD.

**Gender**
Male	172
Female	270

**Ethnicity**
Non-Hispanic White	338
Black	87
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	253
From 75 to 84	110
85 and over	40
Less than 65	39

Conditions of Medicare patients treated by Dr. John Mj Ernst, MD in 2017

Hypertension	68
High Cholesterol	54
Stroke	2
Ischemic Heart Disease	25
Depression	23
Chronic Kidney Disease	17
Asthma	11
Osteoperosis	7
Atrial Fibrilation	9
Heart Failure	10
Chronic Obstructive Pulmonary Disease	12
Diabetes	29
Dementia	5
Cancer	11

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John Mj Ernst, MD treated as an orthopedist in Charleston, SC during 2018 were injections, upper extremity surgery, aspiration and musculoskeletal imaging.

Volume of procedures performed by Dr. John Mj Ernst, MD for Medicare patients.

aspiration	56
closed (non-surgical) treatment of fracture	11
decompression surgery	28
diabetes management	24
doctor visit	853
immobilization	11
injections	226
lab tests	24
musculoskeletal imaging	31
nerve procedures	28
open surgery	28
tendon surgery	30
upper extremity surgery	58
X-rays	31

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John Mj Ernst, MD.

**Gender**
Male	183
Female	259

**Ethnicity**
Non-Hispanic White	343
Black	82
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	240
From 75 to 84	122
85 and over	39
Less than 65	41

Conditions of Medicare patients treated by Dr. John Mj Ernst, MD in 2018

Hypertension	68
High Cholesterol	68
Stroke	4
Ischemic Heart Disease	27
Depression	23
Chronic Kidney Disease	22
Asthma	9
Osteoperosis	9
Atrial Fibrilation	10
Heart Failure	10
Chronic Obstructive Pulmonary Disease	9
Diabetes	31
Dementia	6
Cancer	12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John Mj Ernst, MD treated as an orthopedist in Charleston, SC during 2019 were injections, upper extremity surgery, X-rays and musculoskeletal imaging.

Volume of procedures performed by Dr. John Mj Ernst, MD for Medicare patients.

aspiration	31
decompression surgery	32
diabetes management	30
doctor visit	835
injections	234
lab tests	30
musculoskeletal imaging	39
nerve procedures	32
open surgery	32
tendon surgery	27
upper extremity surgery	59
X-rays	39

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John Mj Ernst, MD.

**Gender**
Male	194
Female	270

**Ethnicity**
Non-Hispanic White	369
Black	75
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	270
From 75 to 84	120
85 and over	33
Less than 65	41

Conditions of Medicare patients treated by Dr. John Mj Ernst, MD in 2019

Hypertension	67
High Cholesterol	64
Stroke	3
Ischemic Heart Disease	25
Depression	23
Chronic Kidney Disease	21
Asthma	13
Osteoperosis	9
Atrial Fibrilation	10
Heart Failure	10
Chronic Obstructive Pulmonary Disease	10
Diabetes	29
Dementia	3
Cancer	12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. John Mj Ernst, MD treated as an orthopedist in Charleston, SC during 2020 were injections, upper extremity surgery, aspiration and tendon surgery.

Volume of procedures performed by Dr. John Mj Ernst, MD for Medicare patients.

aspiration	38
decompression surgery	19
doctor visit	666
injections	179
musculoskeletal imaging	14
nerve procedures	19
open surgery	19
tendon surgery	24
upper extremity surgery	43
X-rays	14

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John Mj Ernst, MD.

**Gender**
Male	152
Female	198

**Ethnicity**
Non-Hispanic White	271
Black	64
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	185
From 75 to 84	103
85 and over	31
Less than 65	31

Conditions of Medicare patients treated by Dr. John Mj Ernst, MD in 2020

Hypertension	65
High Cholesterol	68
Stroke	0
Ischemic Heart Disease	26
Depression	15
Chronic Kidney Disease	27
Asthma	11
Osteoperosis	9
Atrial Fibrilation	9
Heart Failure	7
Chronic Obstructive Pulmonary Disease	5
Diabetes	31
Dementia	5
Cancer	13

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. John Mj Ernst, MD treated as an orthopedist in Charleston, SC during 2021 were injections, upper extremity surgery, aspiration and nerve procedures.

Volume of procedures performed by Dr. John Mj Ernst, MD for Medicare patients.

aspiration	41
decompression surgery	27
doctor visit	722
injections	231
musculoskeletal imaging	14
nerve procedures	27
open surgery	27
tendon surgery	21
upper extremity surgery	48
X-rays	14

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John Mj Ernst, MD.

**Gender**
Male	138
Female	215

**Ethnicity**
Non-Hispanic White	288
Black	54
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	191
From 75 to 84	106
85 and over	36
Less than 65	20

Conditions of Medicare patients treated by Dr. John Mj Ernst, MD in 2021

Hypertension	70
High Cholesterol	74
Stroke	3
Ischemic Heart Disease	29
Depression	18
Chronic Kidney Disease	20
Asthma	8
Osteoperosis	11
Atrial Fibrilation	12
Heart Failure	11
Chronic Obstructive Pulmonary Disease	7
Diabetes	26
Dementia	5
Cancer	13

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. John Mj Ernst, MD treated as an orthopedist in Charleston, SC during 2022 were injections, upper extremity surgery, tendon surgery and aspiration.

Volume of procedures performed by Dr. John Mj Ernst, MD for Medicare patients.

aspiration	27
decompression surgery	23
doctor visit	629
injections	165
nerve procedures	23
open surgery	23
tendon surgery	29
upper extremity surgery	52

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. John Mj Ernst, MD.

**Gender**
Male	125
Female	196

**Ethnicity**
Non-Hispanic White	267
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	178
From 75 to 84	103
85 and over	29
Less than 65	11

Conditions of Medicare patients treated by Dr. John Mj Ernst, MD in 2022

Hypertension	73
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	25
Depression	20
Chronic Kidney Disease	16
Asthma	12
Osteoperosis	15
Atrial Fibrilation	18
Heart Failure	9
Chronic Obstructive Pulmonary Disease	12
Diabetes	30
Dementia	0
Cancer	16

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. John Mj Ernst, MD treated as an orthopedist in Charleston, SC during 2023 were injections, upper extremity surgery, tendon surgery and aspiration.

Volume of procedures performed by Dr. John Mj Ernst, MD for Medicare patients.

aspiration	25
decompression surgery	13
doctor visit	600
injections	166
nerve procedures	13
open surgery	13
tendon surgery	26
upper extremity surgery	39

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. John Mj Ernst, MD.

**Gender**
Male	118
Female	188

**Ethnicity**
Non-Hispanic White	243
Black	52
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	158
From 75 to 84	117
85 and over	16
Less than 65	15

Conditions of Medicare patients treated by Dr. John Mj Ernst, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	22
Depression	20
Chronic Kidney Disease	18
Asthma	13
Osteoperosis	17
Atrial Fibrilation	17
Heart Failure	10
Chronic Obstructive Pulmonary Disease	13
Diabetes	32
Dementia	0
Cancer	17

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. John Mj Ernst, MD for Medicare patients.

The highest averages for the top procedures that Dr. John Mj Ernst, MD treated as an orthopedist in Charleston, SC were injections, aspiration, upper extremity surgery and musculoskeletal imaging.

aspiration	85
closed (non-surgical) treatment of fracture	12
decompression surgery	28
diabetes management	25
doctor visit	812
excision	14
fracture reduction (setting broken bones)	14
immobilization	11
injections	247
joint surgery	14
lab tests	25
musculoskeletal imaging	36
nerve procedures	28
open surgery	28
removal of lesion (e.g. growth)	14
tendon surgery	25
upper extremity surgery	49
X-rays	36

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. John Mj Ernst, MD.

**Gender**
Male	164
Female	270

**Ethnicity**
Black / African American	70
Asian / Pacific Islander	0
Non-Hispanic White	344
Hispanic	0
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	123
85 and over	34
Less than 65	40
65 to 74	235

Average of Total of Conditions of Medicare patients treated by Dr. John Mj Ernst, MD From 2012 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. John Mj Ernst, MD treated were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	62
High Cholesterol	60
Stroke	3
Ischemic Heart Disease	24
Depression	18
Chronic Kidney Disease	16
Asthma	10
Osteoporosis	8
Heart Failure	8
Chronic Obstructive Pulmonary Disease	9
Diabetes	27
Atrial Fibrillation	9
Cancer	11
Dementia	3

Education & Training

He has a state license in South Carolina.

Licensed In: South Carolina

Ratings & Reviews

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General Payments

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

**Payments by Company**
Integra LifeSciences Corporation	$232 TenoGlide $232
ACUMED LLC	$164 Hand & Wrist $164
AXOGEN	$139 AVANCE NERVE GRAFT $125	$14
Ferring Pharmaceuticals Inc.	$104 EUFLEXXA $104
Endo Pharmaceuticals Inc.	$103 XIAFLEX $103
Other	$237 ArcPhix System $64	XIAFLEX $40	BGS-BHS Stimulators $28	Prineo 42 $27	TRAUMA & EXTREMITIES $27	Other $51

**Types of Payments**
Food and Beverage	$979

Biography

Dr. John Ernst's specialties are hand surgery and orthopedics/orthopedic surgery. Dr. John Ernst practices in Charleston, SC. Dr. Ernst attended medical school at the University of Rochester School of Medicine and Dentistry.