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Dr. Alfred Darrell Johnson, MD

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Specializes in: Internal Medicine (Adult Medicine) and General Pediatrics

University of Missouri-Columbia School of Medicine

1241 West Stadium Boulevard
Jefferson City, MO 65109

(573) 635-5264

Dr. Alfred Darrell Johnson, MD is an internist in Jefferson City, MO specializing in internal medicine (adult medicine) and general pediatrics. He graduated from University of Missouri-Columbia School of Medicine. Dr. Alfred Darrell Johnson, MD is affiliated with Jefferson City Medical Group, SSM Health and SSM Health St. Mary's Hospital - Jefferson City.

Office Locations

1241 West Stadium Boulevard
Jefferson City, MO 65109

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Noteworthy Medicare Patient Procedures Performed by Dr. Alfred Darrell Johnson, MD in 2023

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

Top 5%

By Volume:

creatinine urine test

lab tests

By Affordability:

metabolic panel

In 2023, among providers in related specialties within Missouri, Dr. Alfred Darrell Johnson, MD performed more creatinine urine test, and lab tests procedures for Medicare patients than 95% of them and he also had a list price for metabolic panel that was lower than the list prices billed to Medicare by 95% 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.

Top 10%

By Volume:

preventive care

By Affordability:

blood draw

blood draw for lab tests

phlebotomy for lab tests

venipuncture

In 2023, among providers in related specialties within Missouri, Dr. Alfred Darrell Johnson, MD performed more preventive care procedures for Medicare patients than 90% of them and he also had a list price for blood draw, blood draw for lab tests, phlebotomy for lab tests, and venipuncture (phlebotomy) that was lower than the list prices billed to Medicare by 90% 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.

Top 25%

By Volume:

complete blood count

lipid profile

By Affordability:

blood count tests

cholesterol screening

complete blood count

lipid profile

microalbumin test

microalbumin urine test

prostate screening

prostate-specific antigen test

screening PSA test

thyroid blood test

thyroid function tests

In 2012, among providers in related specialties within Missouri, Dr. Alfred Darrell Johnson, MD performed more complete blood count (CBC), and lipid profile procedures for Medicare patients than 75% of them and he also had a list price for blood count tests, cholesterol screening, complete blood count (CBC), lipid profile, microalbumin test, microalbumin urine test, prostate screening, prostate-specific antigen (PSA) test, screening PSA test, thyroid blood test, and thyroid function tests 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

2012 Medicare Procedure Volume

The top procedures that Dr. Alfred Darrell Johnson, MD treated as an internist in Jefferson City, MO during 2012 were lab tests, preventive care, blood draw and thyroid function tests.

Volume of procedures performed by Dr. Alfred Darrell Johnson, MD for Medicare patients.

blood draw	49
diabetes management	12
doctor visit	161
lab tests	131
preventive care	61
thyroid function tests	25
vaccines	22

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Alfred Darrell Johnson, MD treated as an internist in Jefferson City, MO during 2013 were lab tests, preventive care, blood draw and hospital care.

Volume of procedures performed by Dr. Alfred Darrell Johnson, MD for Medicare patients.

blood draw	210
diabetes management	67
doctor visit	595
hospital care	127
inpatient care	109
lab tests	651
outpatient care	18
preventive care	240
thyroid function tests	83
vaccines	73

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Alfred Darrell Johnson, MD.

**Gender**
Male	114
Female	167

**Ethnicity**
Non-Hispanic White	259
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	113
From 75 to 84	65
85 and over	36
Less than 65	67

Conditions of Medicare patients treated by Dr. Alfred Darrell Johnson, MD in 2013

Hypertension	70
High Cholesterol	51
Stroke	4
Ischemic Heart Disease	34
Depression	30
Chronic Kidney Disease	23
Asthma	6
Osteoperosis	14
Atrial Fibrilation	18
Heart Failure	24
Chronic Obstructive Pulmonary Disease	24
Diabetes	40
Dementia	10
Cancer	7

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Alfred Darrell Johnson, MD treated as an internist in Jefferson City, MO during 2014 were lab tests, preventive care, blood draw and vaccines.

Volume of procedures performed by Dr. Alfred Darrell Johnson, MD for Medicare patients.

blood draw	299
diabetes management	102
doctor visit	691
hospital care	184
inpatient care	184
lab tests	1062
preventive care	484
thyroid function tests	112
vaccines	191

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Alfred Darrell Johnson, MD.

**Gender**
Male	196
Female	199

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

**Age**
From 65 to 74	172
From 75 to 84	115
85 and over	44
Less than 65	64

Conditions of Medicare patients treated by Dr. Alfred Darrell Johnson, MD in 2014

Hypertension	63
High Cholesterol	52
Stroke	4
Ischemic Heart Disease	33
Depression	21
Chronic Kidney Disease	18
Asthma	5
Osteoperosis	7
Atrial Fibrilation	10
Heart Failure	16
Chronic Obstructive Pulmonary Disease	15
Diabetes	33
Dementia	8
Cancer	11

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Alfred Darrell Johnson, MD treated as an internist in Jefferson City, MO during 2015 were lab tests, preventive care, blood draw and vaccines.

Volume of procedures performed by Dr. Alfred Darrell Johnson, MD for Medicare patients.

blood draw	373
diabetes management	131
doctor visit	579
lab tests	1306
preventive care	661
thyroid function tests	160
vaccines	246

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Alfred Darrell Johnson, MD.

**Gender**
Male	412
Female	370

**Ethnicity**
Non-Hispanic White	726
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	384
From 75 to 84	228
85 and over	58
Less than 65	112

Conditions of Medicare patients treated by Dr. Alfred Darrell Johnson, MD in 2015

Hypertension	60
High Cholesterol	47
Stroke	0
Ischemic Heart Disease	30
Depression	17
Chronic Kidney Disease	18
Asthma	7
Osteoperosis	8
Atrial Fibrilation	6
Heart Failure	11
Chronic Obstructive Pulmonary Disease	12
Diabetes	33
Dementia	7
Cancer	8

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Alfred Darrell Johnson, MD treated as an internist in Jefferson City, MO during 2016 were lab tests, preventive care, blood draw and thyroid function tests.

Volume of procedures performed by Dr. Alfred Darrell Johnson, MD for Medicare patients.

blood draw	505
diabetes management	178
doctor visit	679
lab tests	1619
preventive care	744
thyroid function tests	220
vaccines	193

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Alfred Darrell Johnson, MD.

**Gender**
Male	208
Female	188

**Ethnicity**
Non-Hispanic White	360
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	199
From 75 to 84	103
85 and over	32
Less than 65	62

Conditions of Medicare patients treated by Dr. Alfred Darrell Johnson, MD in 2016

Hypertension	65
High Cholesterol	46
Stroke	0
Ischemic Heart Disease	30
Depression	15
Chronic Kidney Disease	23
Asthma	14
Osteoperosis	5
Atrial Fibrilation	11
Heart Failure	17
Chronic Obstructive Pulmonary Disease	15
Diabetes	35
Dementia	6
Cancer	7

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Alfred Darrell Johnson, MD treated as an internist in Jefferson City, MO during 2017 were lab tests, preventive care, blood draw and thyroid function tests.

Volume of procedures performed by Dr. Alfred Darrell Johnson, MD for Medicare patients.

blood draw	527
diabetes management	191
doctor visit	676
lab tests	1639
preventive care	821
thyroid function tests	205
vaccines	191

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Alfred Darrell Johnson, MD.

**Gender**
Male	217
Female	181

**Ethnicity**
Non-Hispanic White	352
Black	34
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	201
From 75 to 84	106
85 and over	32
Less than 65	59

Conditions of Medicare patients treated by Dr. Alfred Darrell Johnson, MD in 2017

Hypertension	64
High Cholesterol	46
Stroke	0
Ischemic Heart Disease	29
Depression	16
Chronic Kidney Disease	24
Asthma	3
Osteoperosis	6
Atrial Fibrilation	8
Heart Failure	14
Chronic Obstructive Pulmonary Disease	12
Diabetes	35
Dementia	6
Cancer	8

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Alfred Darrell Johnson, MD treated as an internist in Jefferson City, MO during 2018 were lab tests, preventive care, blood draw and thyroid function tests.

Volume of procedures performed by Dr. Alfred Darrell Johnson, MD for Medicare patients.

blood draw	554
breast procedures	11
diabetes management	197
doctor visit	608
lab tests	1889
preventive care	841
thyroid function tests	258
vaccines	137
women's imaging	11
X-rays	11

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Alfred Darrell Johnson, MD.

**Gender**
Male	204
Female	173

**Ethnicity**
Non-Hispanic White	333
Black	31
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	197
From 75 to 84	101
85 and over	32
Less than 65	47

Conditions of Medicare patients treated by Dr. Alfred Darrell Johnson, MD in 2018

Hypertension	62
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	30
Depression	16
Chronic Kidney Disease	21
Asthma	0
Osteoperosis	5
Atrial Fibrilation	6
Heart Failure	13
Chronic Obstructive Pulmonary Disease	12
Diabetes	34
Dementia	6
Cancer	7

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Alfred Darrell Johnson, MD treated as an internist in Jefferson City, MO during 2019 were lab tests, preventive care, blood draw and thyroid function tests.

Volume of procedures performed by Dr. Alfred Darrell Johnson, MD for Medicare patients.

blood draw	348
diabetes management	151
doctor visit	464
lab tests	1340
preventive care	566
thyroid function tests	190
vaccines	91

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Alfred Darrell Johnson, MD.

**Gender**
Male	153
Female	114

**Ethnicity**
Non-Hispanic White	237
Black	19
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	127
From 75 to 84	79
85 and over	26
Less than 65	35

Conditions of Medicare patients treated by Dr. Alfred Darrell Johnson, MD in 2019

Hypertension	73
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	30
Depression	20
Chronic Kidney Disease	26
Asthma	0
Osteoperosis	6
Atrial Fibrilation	6
Heart Failure	10
Chronic Obstructive Pulmonary Disease	13
Diabetes	37
Dementia	7
Cancer	8

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Alfred Darrell Johnson, MD treated as an internist in Jefferson City, MO during 2020 were lab tests, preventive care, blood draw and thyroid function tests.

Volume of procedures performed by Dr. Alfred Darrell Johnson, MD for Medicare patients.

blood draw	320
diabetes management	134
doctor visit	457
lab tests	1233
preventive care	530
thyroid function tests	185
vaccines	86

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Alfred Darrell Johnson, MD.

**Gender**
Male	140
Female	101

**Ethnicity**
Non-Hispanic White	210
Black	20
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	112
From 75 to 84	68
85 and over	30
Less than 65	31

Conditions of Medicare patients treated by Dr. Alfred Darrell Johnson, MD in 2020

Hypertension	68
High Cholesterol	63
Stroke	0
Ischemic Heart Disease	28
Depression	16
Chronic Kidney Disease	20
Asthma	0
Osteoperosis	0
Atrial Fibrilation	7
Heart Failure	10
Chronic Obstructive Pulmonary Disease	9
Diabetes	32
Dementia	6
Cancer	7

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Alfred Darrell Johnson, MD treated as an internist in Jefferson City, MO during 2021 were lab tests, preventive care, blood draw and thyroid function tests.

Volume of procedures performed by Dr. Alfred Darrell Johnson, MD for Medicare patients.

blood draw	253
diabetes management	126
doctor visit	460
lab tests	1191
preventive care	456
thyroid function tests	210
vaccines	79

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Alfred Darrell Johnson, MD.

**Gender**
Male	199
Female	155

**Ethnicity**
Non-Hispanic White	304
Black	33
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	202
From 75 to 84	85
85 and over	36
Less than 65	31

Conditions of Medicare patients treated by Dr. Alfred Darrell Johnson, MD in 2021

Hypertension	45
High Cholesterol	43
Stroke	0
Ischemic Heart Disease	19
Depression	8
Chronic Kidney Disease	12
Asthma	0
Osteoperosis	0
Atrial Fibrilation	7
Heart Failure	7
Chronic Obstructive Pulmonary Disease	8
Diabetes	23
Dementia	4
Cancer	6

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Alfred Darrell Johnson, MD treated as an internist in Jefferson City, MO during 2022 were lab tests, preventive care, blood draw and thyroid function tests.

Volume of procedures performed by Dr. Alfred Darrell Johnson, MD for Medicare patients.

blood draw	251
diabetes management	112
doctor visit	430
lab tests	1175
preventive care	446
thyroid function tests	226
vaccines	78

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Alfred Darrell Johnson, MD.

**Gender**
Male	136
Female	93

**Ethnicity**
Non-Hispanic White	194
Black	22
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	120
From 75 to 84	59
85 and over	26
Less than 65	24

Conditions of Medicare patients treated by Dr. Alfred Darrell Johnson, MD in 2022

Hypertension	71
High Cholesterol	72
Stroke	5
Ischemic Heart Disease	23
Depression	12
Chronic Kidney Disease	8
Asthma	0
Osteoperosis	0
Atrial Fibrilation	14
Heart Failure	10
Chronic Obstructive Pulmonary Disease	14
Diabetes	33
Dementia	0
Cancer	13

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Alfred Darrell Johnson, MD for Medicare patients.

The highest averages for the top procedures that Dr. Alfred Darrell Johnson, MD treated as an internist in Jefferson City, MO were lab tests, preventive care, blood draw and thyroid function tests.

blood draw	335
breast procedures	11
diabetes management	127
doctor visit	527
hospital care	155
inpatient care	146
lab tests	1203
outpatient care	18
preventive care	531
thyroid function tests	170
vaccines	126
women's imaging	11
X-rays	11

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Alfred Darrell Johnson, MD.

**Gender**
Male	179
Female	158

**Ethnicity**
Black / African American	14
Asian / Pacific Islander	0
Non-Hispanic White	304
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	91
85 and over	32
Less than 65	48
65 to 74	166

Average of Total of Conditions of Medicare patients treated by Dr. Alfred Darrell Johnson, MD From 2012 - 2022

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

Hypertension	58
High Cholesterol	48
Stroke	1
Ischemic Heart Disease	26
Depression	15
Chronic Kidney Disease	17
Asthma	3
Osteoporosis	4
Heart Failure	12
Chronic Obstructive Pulmonary Disease	12
Diabetes	30
Atrial Fibrillation	8
Cancer	7
Dementia	5

Education & Training

Dr. Alfred Darrell Johnson, MD graduated from University of Missouri-Columbia School of Medicine. He completed residency at University of Missouri Health System. He is certified by the Drug Enforcement Administration Missouri Dept of Health/Narcotics&Dangerous Drugs Missouri State Board of Registration and has a state license in Missouri.

Medical School: University of Missouri-Columbia School of Medicine

Residency: University of Missouri Health System

Board Certification: Drug Enforcement Administration Missouri Dept of Health/Narcotics&Dangerous Drugs Missouri State Board of Registration

Licensed In: Missouri

Affiliations & Hospitals

Dr. Alfred Darrell Johnson, MD is associated with these hospitals and organizations:

Jefferson City Medical Group

SSM Health

SSM Health St. Mary's Hospital - Jefferson City

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General Payments

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

**Payments by Company**
Pfizer Inc.	$390 COLOGUARD $107	ELIQUIS $97	LYRICA $85	VIAGRA $45	EUCRISA $17	Other $39
AbbVie Inc.	$359 UBRELVY $170	QULIPTA $170	VRAYLAR $19
GlaxoSmithKline, LLC.	$221 BEXSERO $99	SHINGRIX $43	PEDIARIX $37	ANORO $28	AREXVY $14
Amgen Inc.	$177 Repatha $107	Prolia $56	Aimovig $14
Lilly USA, LLC	$177 BASAGLAR $113	JARDIANCE $26	REYVOW $21	TRULICITY $16
Other	$1,623 ABILIFY TABLET $138	Trintellix $110	ELIQUIS $105	JARDIANCE $92	Ozempic $89	Other $1,088

**Types of Payments**
Food and Beverage	$2,809
Education	$138

Biography

Dr. Alfred Johnson's area of specialization is general pediatrics. He graduated from the University of Missouri-Columbia School of Medicine and then he performed his residency at the University of Missouri Health System. Dr. Johnson is affiliated with Jefferson City Medical Group and SSM Health St. Mary's Hospital - Jefferson City.