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Dr. Glenn Geoffrey Preston, MD

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Specializes in: Adult Oncology and Adult Hematology

University of Missouri-Columbia School of Medicine (1995)

1200 1st Avenue E
Spencer, IA 51301

(712) 264-6550

Dr. Glenn Geoffrey Preston, MD is an oncologist in Spencer, IA specializing in adult oncology and adult hematology. He graduated from University of Missouri-Columbia School of Medicine in 1995 and has 31 years of experience. Dr. Glenn Geoffrey Preston, MD is affiliated with MYMICHIGAN MEDICAL CENTER ALPENA.

Office Locations

1200 1st Avenue E
Spencer, IA 51301

(712) 264-6550

(712) 264-6553

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In The News

“She is a graphic designer in Sioux Falls... - Ambassadors greet new oncologist (Local News ~ 03/21/13)The Spencer Ambassadors welcomed Dr. Glenn Preston, the hospital's new oncologist, during...”—"Stories from Thursday, March 21, 2013", Spencer Daily Reporter, March 2013

“Medical oncologist Dr. Glenn Preston is joining the Abben Cancer Center of Spencer Hospital, providing the region with the first locally based full-time medical oncologist.”—"Stories from Saturday, March 2, 2013", Spencer Daily Reporter, February 2013

“The family offers their thanks for the compassionate care offered by Dr. Glenn Preston and the staff at the Cancer Care Centers of South Texas in Marble Falls.”—"Sarah Rowland Dies at 53", The Austin Chronicle, August 2012

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Glenn Geoffrey Preston, MD treated as an oncologist in Spencer, IA during 2012 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and port flush.

Volume of procedures performed by Dr. Glenn Geoffrey Preston, MD for Medicare patients.

biological response modifier (BRM) therapy	778
chemotherapy	778
doctor visit	2197
hospital care	54
inpatient care	54
minimally invasive procedures	734
port flush	70

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Glenn Geoffrey Preston, MD treated as an oncologist in Spencer, IA during 2013 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and hospital care.

Volume of procedures performed by Dr. Glenn Geoffrey Preston, MD for Medicare patients.

biological response modifier (BRM) therapy	79
chemotherapy	79
doctor visit	1701
hospital care	26
inpatient care	26
minimally invasive procedures	111

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Glenn Geoffrey Preston, MD.

**Gender**
Male	234
Female	320

**Ethnicity**
Non-Hispanic White	539
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	189
From 75 to 84	227
85 and over	105
Less than 65	33

Conditions of Medicare patients treated by Dr. Glenn Geoffrey Preston, MD in 2013

Hypertension	65
High Cholesterol	51
Stroke	3
Ischemic Heart Disease	43
Depression	16
Chronic Kidney Disease	31
Asthma	6
Osteoperosis	9
Atrial Fibrilation	14
Heart Failure	21
Chronic Obstructive Pulmonary Disease	24
Diabetes	30
Dementia	13
Cancer	43

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Glenn Geoffrey Preston, MD treated as an oncologist in Spencer, IA during 2014 were hospital care and inpatient care.

Volume of procedures performed by Dr. Glenn Geoffrey Preston, MD for Medicare patients.

doctor visit	2337
hospital care	121
inpatient care	121

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Glenn Geoffrey Preston, MD.

**Gender**
Male	201
Female	236

**Age**
From 65 to 74	148
From 75 to 84	171
85 and over	85
Less than 65	33

Conditions of Medicare patients treated by Dr. Glenn Geoffrey Preston, MD in 2014

Hypertension	58
High Cholesterol	40
Stroke	3
Ischemic Heart Disease	35
Depression	12
Chronic Kidney Disease	27
Asthma	4
Osteoperosis	4
Atrial Fibrilation	14
Heart Failure	18
Chronic Obstructive Pulmonary Disease	18
Diabetes	27
Dementia	7
Cancer	44

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Glenn Geoffrey Preston, MD treated as an oncologist in Spencer, IA during 2015 were hospital care and inpatient care.

Volume of procedures performed by Dr. Glenn Geoffrey Preston, MD for Medicare patients.

doctor visit	2587
hospital care	55
inpatient care	55

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Glenn Geoffrey Preston, MD.

**Gender**
Male	502
Female	614

**Age**
From 65 to 74	390
From 75 to 84	424
85 and over	218
Less than 65	84

Conditions of Medicare patients treated by Dr. Glenn Geoffrey Preston, MD in 2015

Hypertension	56
High Cholesterol	35
Stroke	4
Ischemic Heart Disease	32
Depression	15
Chronic Kidney Disease	28
Asthma	8
Osteoperosis	6
Atrial Fibrilation	11
Heart Failure	17
Chronic Obstructive Pulmonary Disease	21
Diabetes	28
Dementia	8
Cancer	45

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Glenn Geoffrey Preston, MD treated as an oncologist in Spencer, IA during 2016 were hospital care and inpatient care.

Volume of procedures performed by Dr. Glenn Geoffrey Preston, MD for Medicare patients.

doctor visit	2550
hospital care	31
inpatient care	31

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Glenn Geoffrey Preston, MD.

**Gender**
Male	225
Female	326

**Ethnicity**
Non-Hispanic White	540
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	179
From 75 to 84	236
85 and over	102
Less than 65	34

Conditions of Medicare patients treated by Dr. Glenn Geoffrey Preston, MD in 2016

Hypertension	60
High Cholesterol	39
Stroke	3
Ischemic Heart Disease	31
Depression	18
Chronic Kidney Disease	31
Asthma	20
Osteoperosis	6
Atrial Fibrilation	11
Heart Failure	17
Chronic Obstructive Pulmonary Disease	20
Diabetes	31
Dementia	8
Cancer	45

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Glenn Geoffrey Preston, MD treated as an oncologist in Spencer, IA during 2017 were hospital care and inpatient care.

Volume of procedures performed by Dr. Glenn Geoffrey Preston, MD for Medicare patients.

doctor visit	2447
hospital care	13
inpatient care	13

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Glenn Geoffrey Preston, MD.

**Gender**
Male	226
Female	346

**Age**
From 65 to 74	202
From 75 to 84	228
85 and over	109
Less than 65	33

Conditions of Medicare patients treated by Dr. Glenn Geoffrey Preston, MD in 2017

Hypertension	65
High Cholesterol	44
Stroke	5
Ischemic Heart Disease	29
Depression	20
Chronic Kidney Disease	33
Asthma	4
Osteoperosis	6
Atrial Fibrilation	14
Heart Failure	20
Chronic Obstructive Pulmonary Disease	23
Diabetes	32
Dementia	9
Cancer	47

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

Volume of procedures performed by Dr. Glenn Geoffrey Preston, MD for Medicare patients.

doctor visit	2648

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Glenn Geoffrey Preston, MD.

**Gender**
Male	257
Female	359

**Ethnicity**
Non-Hispanic White	604
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	212
From 75 to 84	231
85 and over	124
Less than 65	49

Conditions of Medicare patients treated by Dr. Glenn Geoffrey Preston, MD in 2018

Hypertension	65
High Cholesterol	49
Stroke	2
Ischemic Heart Disease	30
Depression	20
Chronic Kidney Disease	37
Asthma	4
Osteoperosis	6
Atrial Fibrilation	13
Heart Failure	22
Chronic Obstructive Pulmonary Disease	23
Diabetes	31
Dementia	9
Cancer	49

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

Volume of procedures performed by Dr. Glenn Geoffrey Preston, MD for Medicare patients.

doctor visit	2608

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Glenn Geoffrey Preston, MD.

**Gender**
Male	254
Female	380

**Age**
From 65 to 74	241
From 75 to 84	231
85 and over	115
Less than 65	47

Conditions of Medicare patients treated by Dr. Glenn Geoffrey Preston, MD in 2019

Hypertension	65
High Cholesterol	52
Stroke	4
Ischemic Heart Disease	32
Depression	24
Chronic Kidney Disease	38
Asthma	5
Osteoperosis	8
Atrial Fibrilation	14
Heart Failure	23
Chronic Obstructive Pulmonary Disease	21
Diabetes	30
Dementia	9
Cancer	46

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Glenn Geoffrey Preston, MD treated as an oncologist in Spencer, IA during 2020 were hospital care and inpatient care.

Volume of procedures performed by Dr. Glenn Geoffrey Preston, MD for Medicare patients.

doctor visit	2617
hospital care	20
inpatient care	20

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Glenn Geoffrey Preston, MD.

**Gender**
Male	260
Female	391

**Ethnicity**
Non-Hispanic White	638
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	261
From 75 to 84	233
85 and over	115
Less than 65	42

Conditions of Medicare patients treated by Dr. Glenn Geoffrey Preston, MD in 2020

Hypertension	63
High Cholesterol	51
Stroke	3
Ischemic Heart Disease	28
Depression	22
Chronic Kidney Disease	38
Asthma	4
Osteoperosis	8
Atrial Fibrilation	10
Heart Failure	21
Chronic Obstructive Pulmonary Disease	18
Diabetes	30
Dementia	8
Cancer	49

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

Volume of procedures performed by Dr. Glenn Geoffrey Preston, MD for Medicare patients.

doctor visit	2649

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Glenn Geoffrey Preston, MD.

**Gender**
Male	249
Female	410

**Ethnicity**
Non-Hispanic White	643
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	277
From 75 to 84	248
85 and over	111
Less than 65	23

Conditions of Medicare patients treated by Dr. Glenn Geoffrey Preston, MD in 2021

Hypertension	61
High Cholesterol	50
Stroke	4
Ischemic Heart Disease	27
Depression	20
Chronic Kidney Disease	39
Asthma	3
Osteoperosis	8
Atrial Fibrilation	11
Heart Failure	19
Chronic Obstructive Pulmonary Disease	19
Diabetes	29
Dementia	8
Cancer	52

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

Volume of procedures performed by Dr. Glenn Geoffrey Preston, MD for Medicare patients.

doctor visit	2173

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Glenn Geoffrey Preston, MD.

**Gender**
Male	210
Female	373

**Ethnicity**
Non-Hispanic White	572
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	227
From 75 to 84	233
85 and over	99
Less than 65	24

Conditions of Medicare patients treated by Dr. Glenn Geoffrey Preston, MD in 2022

Hypertension	71
High Cholesterol	64
Stroke	5
Ischemic Heart Disease	20
Depression	22
Chronic Kidney Disease	30
Asthma	6
Osteoperosis	14
Atrial Fibrilation	20
Heart Failure	19
Chronic Obstructive Pulmonary Disease	22
Diabetes	30
Dementia	6
Cancer	62

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Glenn Geoffrey Preston, MD for Medicare patients.

The highest averages for the top procedures that Dr. Glenn Geoffrey Preston, MD treated as an oncologist in Spencer, IA were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and hospital care.

biological response modifier (BRM) therapy	428
chemotherapy	428
doctor visit	2410
hospital care	45
inpatient care	45
minimally invasive procedures	422

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Glenn Geoffrey Preston, MD.

**Gender**
Male	238
Female	341

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	321
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	223
85 and over	107
Less than 65	36
65 to 74	211

Average of Total of Conditions of Medicare patients treated by Dr. Glenn Geoffrey Preston, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Glenn Geoffrey Preston, MD treated were hypertension, cancer, high cholesterol and chronic kidney disease.

Hypertension	57
High Cholesterol	43
Stroke	3
Ischemic Heart Disease	27
Depression	17
Chronic Kidney Disease	30
Asthma	5
Osteoporosis	6
Heart Failure	17
Chronic Obstructive Pulmonary Disease	19
Diabetes	27
Atrial Fibrillation	12
Dementia	7
Cancer	43

Education & Training

Dr. Glenn Geoffrey Preston, MD graduated from University of Missouri-Columbia School of Medicine in 1995. He has a state license in Iowa.

Medical School: University of Missouri-Columbia School of Medicine (1995)

Licensed In: Iowa

Affiliations & Hospitals

Dr. Glenn Geoffrey Preston, MD is associated with these hospitals and organizations:

MYMICHIGAN MEDICAL CENTER ALPENA

Ratings & Reviews

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General Payments

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

**Payments by Company**
Astellas Pharma US Inc	$255 $255
G1 Therapeutics, Inc.	$114 COSELA $114
Amgen Inc.	$65 Kyprolis $33	$32
Celgene Corporation	$32 Revlimid $32
Gilead Sciences, Inc.	$12 $12

**Types of Payments**
Education	$299
Food and Beverage	$180

Biography

Dr. Glenn Preston is a specialist in adult hematology and adult oncology in Spencer, IA. Dr. Preston graduated from the University of Missouri-Columbia School of Medicine.

Select Year:

Dr. Glenn Geoffrey Preston, MD

Office Locations

In The News

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Glenn Geoffrey Preston, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Glenn Geoffrey Preston, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Glenn Geoffrey Preston, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Glenn Geoffrey Preston, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Glenn Geoffrey Preston, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Glenn Geoffrey Preston, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Glenn Geoffrey Preston, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Glenn Geoffrey Preston, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Glenn Geoffrey Preston, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Glenn Geoffrey Preston, MD in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

Average of Total of Conditions of Medicare patients treated by Dr. Glenn Geoffrey Preston, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

Other Providers in Spencer, IA