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Dr. Tanner Michael Johanns, MD, PhD

(60 Ratings)

Specializes in: Medical Oncology and Adult Oncology

University of Minnesota Medical School (2012)

Professional interests include: immunotherapy, clinical trials, merkel cell carcinoma, and more.

4500 Forest Park Avenue
Saint Louis, MO 63108

(314) 747-1171

Dr. Tanner Michael Johanns, MD, PhD is a medical oncologist in Louis, MO specializing in medical oncology and adult oncology. He graduated from University of Minnesota Medical School in 2012 and has 14 years of experience. Dr. Tanner Michael Johanns, MD, PhD is affiliated with WashU Medicine.

Office Locations

4500 Forest Park Avenue Street
Louis, MO 63108

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4500 Forest Park Avenue
Saint Louis, MO 63108

(314) 747-1171

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4921 Parkview Place Suite 7a, 7b, 7c
Saint Louis, MO 63110

1-800-647-2098

(314) 362-3192

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In The News

“The vaccine caused no serious adverse events and extended overall survival in the nine patients included in the study compared with historical outcomes, reported Tanner M. Johanns, MD, PhD, of...”—"Personalized DNA Vaccine Shows Promise in Brain Cancer", MedPage Today, May 2026

“Geneos is also presenting data from its ongoing collaboration with Dr. Tanner Johanns and colleagues at Washington University School of Medicine to treat a patient with newly diagnosed anaplastic...”—"Geneos Therapeutics Announces Clinical Updates on Personalized Cancer Vaccine Program", The Times Herald, June 2021

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Tanner Michael Johanns, MD, PhD treated as a medical oncologist in Louis, MO during 2018 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and blood draw.

Volume of procedures performed by Dr. Tanner Michael Johanns, MD, PhD for Medicare patients.

biological response modifier (BRM) therapy	123
blood draw	36
chemotherapy	123
doctor visit	76
minimally invasive procedures	135

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Tanner Michael Johanns, MD, PhD.

**Gender**
Male	101
Female	71

**Ethnicity**
Non-Hispanic White	136
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	86
From 75 to 84	43
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Tanner Michael Johanns, MD, PhD in 2018

Hypertension	61
High Cholesterol	47
Stroke	7
Ischemic Heart Disease	28
Depression	20
Chronic Kidney Disease	36
Asthma	0
Osteoperosis	0
Atrial Fibrilation	9
Heart Failure	22
Chronic Obstructive Pulmonary Disease	12
Diabetes	25
Dementia	9
Cancer	26

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Tanner Michael Johanns, MD, PhD treated as a medical oncologist in Louis, MO during 2019 were minimally invasive procedures, blood draw, chemotherapy and biological response modifier (BRM) therapy.

Volume of procedures performed by Dr. Tanner Michael Johanns, MD, PhD for Medicare patients.

biological response modifier (BRM) therapy	121
blood draw	122
chemotherapy	121
doctor visit	182
minimally invasive procedures	142

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Tanner Michael Johanns, MD, PhD.

**Gender**
Male	125
Female	120

**Ethnicity**
Non-Hispanic White	204
Black	25
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	137
From 75 to 84	50
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Tanner Michael Johanns, MD, PhD in 2019

Hypertension	61
High Cholesterol	49
Stroke	5
Ischemic Heart Disease	32
Depression	31
Chronic Kidney Disease	46
Asthma	11
Osteoperosis	6
Atrial Fibrilation	9
Heart Failure	24
Chronic Obstructive Pulmonary Disease	15
Diabetes	28
Dementia	9
Cancer	27

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Tanner Michael Johanns, MD, PhD treated as a medical oncologist in Louis, MO during 2020 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and blood draw.

Volume of procedures performed by Dr. Tanner Michael Johanns, MD, PhD for Medicare patients.

biological response modifier (BRM) therapy	291
blood draw	146
chemotherapy	291
doctor visit	172
hospital care	16
inpatient care	16
minimally invasive procedures	346

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Tanner Michael Johanns, MD, PhD.

**Gender**
Male	186
Female	152

**Ethnicity**
Non-Hispanic White	271
Black	46
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	179
From 75 to 84	82
85 and over	13
Less than 65	64

Conditions of Medicare patients treated by Dr. Tanner Michael Johanns, MD, PhD in 2020

Hypertension	62
High Cholesterol	47
Stroke	7
Ischemic Heart Disease	36
Depression	25
Chronic Kidney Disease	48
Asthma	4
Osteoperosis	7
Atrial Fibrilation	9
Heart Failure	20
Chronic Obstructive Pulmonary Disease	16
Diabetes	31
Dementia	8
Cancer	25

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Tanner Michael Johanns, MD, PhD treated as a medical oncologist in Louis, MO during 2021 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and blood draw.

Volume of procedures performed by Dr. Tanner Michael Johanns, MD, PhD for Medicare patients.

biological response modifier (BRM) therapy	290
blood draw	173
chemotherapy	290
doctor visit	248
hospital care	48
inpatient care	48
minimally invasive procedures	348

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Tanner Michael Johanns, MD, PhD.

**Gender**
Male	215
Female	202

**Ethnicity**
Non-Hispanic White	340
Black	58
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	213
From 75 to 84	102
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Tanner Michael Johanns, MD, PhD in 2021

Hypertension	64
High Cholesterol	51
Stroke	6
Ischemic Heart Disease	35
Depression	23
Chronic Kidney Disease	43
Asthma	8
Osteoperosis	8
Atrial Fibrilation	10
Heart Failure	21
Chronic Obstructive Pulmonary Disease	15
Diabetes	26
Dementia	10
Cancer	25

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Tanner Michael Johanns, MD, PhD treated as a medical oncologist in Louis, MO during 2022 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and blood draw.

Volume of procedures performed by Dr. Tanner Michael Johanns, MD, PhD for Medicare patients.

biological response modifier (BRM) therapy	346
blood draw	303
chemotherapy	346
doctor visit	434
hospital care	14
inpatient care	14
minimally invasive procedures	403

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Tanner Michael Johanns, MD, PhD.

**Gender**
Male	231
Female	193

**Ethnicity**
Non-Hispanic White	357
Black	42
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	205
From 75 to 84	114
85 and over	23
Less than 65	82

Conditions of Medicare patients treated by Dr. Tanner Michael Johanns, MD, PhD in 2022

Hypertension	63
High Cholesterol	57
Stroke	12
Ischemic Heart Disease	25
Depression	23
Chronic Kidney Disease	26
Asthma	8
Osteoperosis	10
Atrial Fibrilation	19
Heart Failure	16
Chronic Obstructive Pulmonary Disease	17
Diabetes	25
Dementia	5
Cancer	23

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Tanner Michael Johanns, MD, PhD treated as a medical oncologist in Louis, MO during 2023 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and blood draw.

Volume of procedures performed by Dr. Tanner Michael Johanns, MD, PhD for Medicare patients.

biological response modifier (BRM) therapy	335
blood draw	197
chemotherapy	335
doctor visit	261
hospital care	43
inpatient care	43
minimally invasive procedures	400

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Tanner Michael Johanns, MD, PhD.

**Gender**
Male	247
Female	168

**Ethnicity**
Non-Hispanic White	338
Black	52
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	207
From 75 to 84	112
85 and over	25
Less than 65	71

Conditions of Medicare patients treated by Dr. Tanner Michael Johanns, MD, PhD in 2023

Hypertension	65
High Cholesterol	60
Stroke	13
Ischemic Heart Disease	26
Depression	22
Chronic Kidney Disease	25
Asthma	9
Osteoperosis	11
Atrial Fibrilation	23
Heart Failure	20
Chronic Obstructive Pulmonary Disease	18
Diabetes	29
Dementia	6
Cancer	28

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Tanner Michael Johanns, MD, PhD treated as a medical oncologist in Louis, MO during 2024 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and blood draw.

Volume of procedures performed by Dr. Tanner Michael Johanns, MD, PhD for Medicare patients.

biological response modifier (BRM) therapy	109
blood draw	103
chemotherapy	109
doctor visit	195
minimally invasive procedures	137

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Tanner Michael Johanns, MD, PhD.

**Gender**
Male	140
Female	107

**Ethnicity**
Non-Hispanic White	212
Black	19
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	123
From 75 to 84	70
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Tanner Michael Johanns, MD, PhD in 2024

Hypertension	65
High Cholesterol	62
Stroke	10
Ischemic Heart Disease	22
Depression	21
Chronic Kidney Disease	24
Asthma	9
Osteoperosis	15
Atrial Fibrilation	24
Heart Failure	23
Chronic Obstructive Pulmonary Disease	18
Diabetes	28
Dementia	6
Cancer	27

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2018 - 2024

Volume of procedures performed by Dr. Tanner Michael Johanns, MD, PhD for Medicare patients.

The highest averages for the top procedures that Dr. Tanner Michael Johanns, MD, PhD treated as a medical oncologist in Louis, MO were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and blood draw.

biological response modifier (BRM) therapy	230
blood draw	154
chemotherapy	230
doctor visit	224
hospital care	30
inpatient care	30
minimally invasive procedures	273

Average Medicare Patient Data From 2018 - 2024

Information about Medicare patients treated by Dr. Tanner Michael Johanns, MD, PhD.

**Gender**
Female	144
Male	177

**Ethnicity**
Black / African American	34
Asian / Pacific Islander	0
Non-Hispanic White	265
Hispanic	0
Native American / Alaskan Native	0
Other	0

**Age**
85 and over	8
75 to 84	81
Less than 65	31
65 to 74	164

Average of Total of Conditions of Medicare patients treated by Dr. Tanner Michael Johanns, MD, PhD From 2018 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Tanner Michael Johanns, MD, PhD treated were hypertension, high cholesterol, chronic kidney disease and ischemic heart disease.

Hypertension	63
High Cholesterol	53
Stroke	8
Ischemic Heart Disease	29
Depression	23
Chronic Kidney Disease	35
Asthma	7
Osteoporosis	8
Heart Failure	20
Chronic Obstructive Pulmonary Disease	15
Diabetes	27
Atrial Fibrillation	14
Cancer	25
Dementia	7

Education & Training

Dr. Tanner Michael Johanns, MD, PhD graduated from University of Minnesota Medical School in 2012. He completed residency at Barnes-Jewish Hospital. He is certified by the Board Certification: Medical Oncology and has a state license in Missouri.

Medical School: University of Minnesota Medical School (2012)

Residency: Barnes-Jewish Hospital (2014)

Board Certification: Board Certification: Medical Oncology

Licensed In: Missouri

Affiliations & Hospitals

Dr. Tanner Michael Johanns, MD, PhD is associated with these hospitals and organizations:

WashU Medicine

Ratings & Reviews

Dr. Tanner Michael Johanns, MD, PhD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 60 ratings. We collect ratings and reviews of Dr. Tanner Michael Johanns, MD, PhD from all over the web to help you find the right in Louis, MO.

Overall Rating

(60 Ratings)

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General Payments

These charts describe general payments received by Dr. Tanner Michael Johanns, MD, PhD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Novocure Inc.	$5,251 Oncology $5,251
Celgene Corporation	$324 Abraxane $224	$100
Genentech USA, Inc.	$136 Avastin $13	$123
Servier Pharmaceuticals LLC	$99 $99
Incyte Corporation	$25 $25
Other	$20 KEYTRUDA $20

**Types of Payments**
Honoraria	$3,600
Travel and Lodging	$1,268
Food and Beverage	$987

Research Payments

Dr. Tanner Michael Johanns, MD, PhD has received 33 research payments totaling $831,799.

Biography

Dr. Tanner Johanns practices adult oncology and medical oncology. Dr. Johanns's clinical interests include immunotherapy, clinical trials, and melanoma. His average rating from his patients is 5.0 stars (out of 5). He attended the University of Minnesota Medical School and then went on to complete his residency at Barnes-Jewish Hospital. Dr. Johanns is professionally affiliated with WashU Medicine and Barnes-Jewish Hospital.