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Dr. Leslie Thomas Busby, MD

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Specializes in: Medical Oncology, Adult Oncology, Adult Hematology and Hospital Medicine (Hospitalist)

University of Nevada School of Medicine

Professional interests include: hospital care

4715 ARAPAHOE AVENUE
BOULDER, CO 80303

(303) 385-2000

Dr. Leslie Thomas Busby, MD is a medical oncologist in BOULDER, CO specializing in medical oncology, adult oncology, adult hematology and hospital medicine (hospitalist). He graduated from University of Nevada School of Medicine. Dr. Leslie Thomas Busby, MD is affiliated with Boulder Community Health, UCHealth and CommonSpirit Health - Mountain Region.

Office Locations

Boulder Community Health

4715 ARAPAHOE AVENUE
BOULDER, CO 80303

(303) 385-2000

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1024 S. Lemay Avenue
Fort Collins, CO 80526

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In The News

“Dara and her family thank Dr. Leslie T. Busby and Laurie Shumaker, MSN, FNP-C, of the Rocky Mountain Cancer Centers' Boulder office, for being partners with them in her care and the caregivers at...”—"Dara Lynn Miles", Boulder Daily Camera, September 2024

“Leslie Busby, an oncologist from Rocky Mountain Cancer Centers, said that white-bagging "often leads to delays and damaged products" and "unnecessary infrastructure costs" for storing ordered...”—"Lawmakers Seek Easier Access to Injections and IVs for Chronic Illness, Cancer Patients", Westword, April 2024

“Dr. Leslie Busby, chairman of pharmaceuticals and therapeutics at the US Oncology Network, which manages drugs for Rocky Mountain Cancer Centers' 19 Colorado locations, said that during the worst...”—"Colorado cancer centers try to manage chemotherapy drug shortage", Greeley Tribune, August 2023

Noteworthy Medicare Patient Procedures Performed by Dr. Leslie Thomas Busby, MD in 2023

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

Top 5%

By Volume:

biological response modifier therapy

intravenous chemotherapy

intravenous infusion

By Affordability:

hospital care

inpatient care

inpatient hospital care

In 2023, among providers in related specialties within Colorado, Dr. Leslie Thomas Busby, MD performed more biological response modifier (BRM) therapy, intravenous (IV) chemotherapy, and intravenous (IV) infusion procedures for Medicare patients than 95% of them and he also had a list price for hospital care, inpatient care, and inpatient hospital care (for patient admitted to hospital) 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 25%

By Affordability:

antineoplastic hormone therapy

hormone therapy

In 2012, Dr. Leslie Thomas Busby, MD had a list price for antineoplastic hormone therapy, and hormone therapy that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Colorado. 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. Leslie Thomas Busby, MD treated as a medical oncologist in BOULDER, CO during 2012 were minimally invasive procedures, hospital care, inpatient care and chemotherapy.

Volume of procedures performed by Dr. Leslie Thomas Busby, MD for Medicare patients.

biological response modifier (BRM) therapy	180
chemotherapy	180
doctor visit	768
hormone therapy	29
hospital care	181
inpatient care	181
minimally invasive procedures	233

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Leslie Thomas Busby, MD treated as a medical oncologist in BOULDER, CO during 2013 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and hospital care.

Volume of procedures performed by Dr. Leslie Thomas Busby, MD for Medicare patients.

biological response modifier (BRM) therapy	181
chemotherapy	181
doctor visit	729
hormone therapy	28
hospital care	169
inpatient care	169
minimally invasive procedures	225

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Leslie Thomas Busby, MD.

**Gender**
Male	187
Female	217

**Ethnicity**
Non-Hispanic White	366
Black	0
Hispanic	11
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	175
From 75 to 84	134
85 and over	56
Less than 65	39

Conditions of Medicare patients treated by Dr. Leslie Thomas Busby, MD in 2013

Hypertension	50
High Cholesterol	33
Stroke	4
Ischemic Heart Disease	33
Depression	21
Chronic Kidney Disease	28
Asthma	5
Osteoperosis	9
Atrial Fibrilation	11
Heart Failure	19
Chronic Obstructive Pulmonary Disease	17
Diabetes	18
Dementia	8
Cancer	45

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Leslie Thomas Busby, MD treated as a medical oncologist in BOULDER, CO during 2014 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and hospital care.

Volume of procedures performed by Dr. Leslie Thomas Busby, MD for Medicare patients.

biological response modifier (BRM) therapy	191
chemotherapy	191
doctor visit	993
hormone therapy	30
hospital care	175
inpatient care	175
minimally invasive procedures	263
port flush	28

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Leslie Thomas Busby, MD.

**Gender**
Male	236
Female	326

**Ethnicity**
Non-Hispanic White	498
Black	0
Hispanic	26
Asian	0
Other	19
Native American	0

**Age**
From 65 to 74	256
From 75 to 84	192
85 and over	69
Less than 65	45

Conditions of Medicare patients treated by Dr. Leslie Thomas Busby, MD in 2014

Hypertension	50
High Cholesterol	35
Stroke	3
Ischemic Heart Disease	28
Depression	16
Chronic Kidney Disease	27
Asthma	4
Osteoperosis	8
Atrial Fibrilation	14
Heart Failure	18
Chronic Obstructive Pulmonary Disease	16
Diabetes	18
Dementia	7
Cancer	42

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Leslie Thomas Busby, MD treated as a medical oncologist in BOULDER, CO during 2015 were minimally invasive procedures, hospital care, inpatient care and chemotherapy.

Volume of procedures performed by Dr. Leslie Thomas Busby, MD for Medicare patients.

aspiration	15
biological response modifier (BRM) therapy	241
blood draw	21
bone marrow tests	30
chemotherapy	241
diagnostic procedures	30
doctor visit	1078
hormone therapy	24
hospital care	282
inpatient care	282
minimally invasive procedures	311
port flush	32

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Leslie Thomas Busby, MD.

**Gender**
Male	490
Female	550

**Ethnicity**
Non-Hispanic White	914
Black	0
Hispanic	58
Asian	0
Other	30
Native American	0

**Age**
From 65 to 74	502
From 75 to 84	284
85 and over	148
Less than 65	106

Conditions of Medicare patients treated by Dr. Leslie Thomas Busby, MD in 2015

Hypertension	47
High Cholesterol	35
Stroke	4
Ischemic Heart Disease	33
Depression	20
Chronic Kidney Disease	31
Asthma	8
Osteoperosis	8
Atrial Fibrilation	15
Heart Failure	17
Chronic Obstructive Pulmonary Disease	13
Diabetes	19
Dementia	8
Cancer	39

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Leslie Thomas Busby, MD treated as a medical oncologist in BOULDER, CO during 2016 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and hospital care.

Volume of procedures performed by Dr. Leslie Thomas Busby, MD for Medicare patients.

biological response modifier (BRM) therapy	243
chemotherapy	243
doctor visit	945
hormone therapy	25
hospital care	203
inpatient care	203
minimally invasive procedures	313
port flush	31

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Leslie Thomas Busby, MD.

**Gender**
Male	246
Female	277

**Ethnicity**
Non-Hispanic White	467
Black	0
Hispanic	21
Asian	0
Other	21
Native American	0

**Age**
From 65 to 74	265
From 75 to 84	153
85 and over	61
Less than 65	44

Conditions of Medicare patients treated by Dr. Leslie Thomas Busby, MD in 2016

Hypertension	46
High Cholesterol	36
Stroke	3
Ischemic Heart Disease	34
Depression	17
Chronic Kidney Disease	33
Asthma	17
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	17
Chronic Obstructive Pulmonary Disease	15
Diabetes	19
Dementia	10
Cancer	38

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Leslie Thomas Busby, MD treated as a medical oncologist in BOULDER, CO during 2017 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and hospital care.

Volume of procedures performed by Dr. Leslie Thomas Busby, MD for Medicare patients.

biological response modifier (BRM) therapy	253
blood draw	13
chemotherapy	253
doctor visit	952
hormone therapy	20
hospital care	252
inpatient care	252
minimally invasive procedures	336
port flush	37

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Leslie Thomas Busby, MD.

**Gender**
Male	272
Female	241

**Ethnicity**
Non-Hispanic White	447
Black	0
Hispanic	25
Asian	0
Other	21
Native American	0

**Age**
From 65 to 74	246
From 75 to 84	160
85 and over	73
Less than 65	34

Conditions of Medicare patients treated by Dr. Leslie Thomas Busby, MD in 2017

Hypertension	47
High Cholesterol	32
Stroke	5
Ischemic Heart Disease	34
Depression	18
Chronic Kidney Disease	34
Asthma	4
Osteoperosis	7
Atrial Fibrilation	13
Heart Failure	17
Chronic Obstructive Pulmonary Disease	16
Diabetes	17
Dementia	11
Cancer	38

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Leslie Thomas Busby, MD treated as a medical oncologist in BOULDER, CO during 2018 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and hospital care.

Volume of procedures performed by Dr. Leslie Thomas Busby, MD for Medicare patients.

biological response modifier (BRM) therapy	246
blood draw	16
chemotherapy	246
doctor visit	912
hormone therapy	27
hospital care	171
inpatient care	171
minimally invasive procedures	345
port flush	38

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Leslie Thomas Busby, MD.

**Gender**
Male	259
Female	274

**Ethnicity**
Non-Hispanic White	470
Black	0
Hispanic	23
Asian	0
Other	19
Native American	0

**Age**
From 65 to 74	271
From 75 to 84	158
85 and over	63
Less than 65	41

Conditions of Medicare patients treated by Dr. Leslie Thomas Busby, MD in 2018

Hypertension	47
High Cholesterol	33
Stroke	6
Ischemic Heart Disease	35
Depression	23
Chronic Kidney Disease	34
Asthma	6
Osteoperosis	11
Atrial Fibrilation	15
Heart Failure	16
Chronic Obstructive Pulmonary Disease	14
Diabetes	17
Dementia	8
Cancer	40

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Leslie Thomas Busby, MD treated as a medical oncologist in BOULDER, CO during 2019 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and hospital care.

Volume of procedures performed by Dr. Leslie Thomas Busby, MD for Medicare patients.

biological response modifier (BRM) therapy	151
chemotherapy	151
doctor visit	788
hormone therapy	19
hospital care	114
inpatient care	114
minimally invasive procedures	252
port flush	31

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Leslie Thomas Busby, MD.

**Gender**
Male	218
Female	274

**Ethnicity**
Non-Hispanic White	443
Black	0
Hispanic	17
Asian	0
Other	15
Native American	0

**Age**
From 65 to 74	248
From 75 to 84	147
85 and over	47
Less than 65	50

Conditions of Medicare patients treated by Dr. Leslie Thomas Busby, MD in 2019

Hypertension	50
High Cholesterol	37
Stroke	4
Ischemic Heart Disease	34
Depression	23
Chronic Kidney Disease	32
Asthma	7
Osteoperosis	11
Atrial Fibrilation	15
Heart Failure	17
Chronic Obstructive Pulmonary Disease	15
Diabetes	17
Dementia	9
Cancer	36

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Leslie Thomas Busby, MD treated as a medical oncologist in BOULDER, CO during 2020 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and hospital care.

Volume of procedures performed by Dr. Leslie Thomas Busby, MD for Medicare patients.

biological response modifier (BRM) therapy	235
blood draw	16
chemotherapy	235
doctor visit	636
hormone therapy	25
hospital care	82
inpatient care	82
minimally invasive procedures	321
port flush	35

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Leslie Thomas Busby, MD.

**Gender**
Male	229
Female	213

**Ethnicity**
Non-Hispanic White	396
Black	0
Hispanic	15
Asian	0
Other	20
Native American	0

**Age**
From 65 to 74	228
From 75 to 84	144
85 and over	36
Less than 65	34

Conditions of Medicare patients treated by Dr. Leslie Thomas Busby, MD in 2020

Hypertension	46
High Cholesterol	35
Stroke	5
Ischemic Heart Disease	36
Depression	24
Chronic Kidney Disease	33
Asthma	7
Osteoperosis	9
Atrial Fibrilation	14
Heart Failure	19
Chronic Obstructive Pulmonary Disease	12
Diabetes	18
Dementia	9
Cancer	38

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Leslie Thomas Busby, MD treated as a medical oncologist in BOULDER, CO during 2021 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and hospital care.

Volume of procedures performed by Dr. Leslie Thomas Busby, MD for Medicare patients.

biological response modifier (BRM) therapy	218
blood draw	27
chemotherapy	218
doctor visit	652
hormone therapy	35
hospital care	55
inpatient care	55
minimally invasive procedures	351
port flush	20

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Leslie Thomas Busby, MD.

**Gender**
Male	255
Female	262

**Ethnicity**
Non-Hispanic White	467
Black	0
Hispanic	0
Asian	0
Other	24
Native American	0

**Age**
From 65 to 74	251
From 75 to 84	182
85 and over	44
Less than 65	40

Conditions of Medicare patients treated by Dr. Leslie Thomas Busby, MD in 2021

Hypertension	52
High Cholesterol	39
Stroke	4
Ischemic Heart Disease	35
Depression	24
Chronic Kidney Disease	32
Asthma	8
Osteoperosis	15
Atrial Fibrilation	14
Heart Failure	16
Chronic Obstructive Pulmonary Disease	13
Diabetes	17
Dementia	8
Cancer	39

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Leslie Thomas Busby, MD treated as a medical oncologist in BOULDER, CO during 2022 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and hormone therapy.

Volume of procedures performed by Dr. Leslie Thomas Busby, MD for Medicare patients.

biological response modifier (BRM) therapy	285
blood draw	32
chemotherapy	285
doctor visit	768
hormone therapy	95
hospital care	37
inpatient care	37
minimally invasive procedures	455
port flush	20

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Leslie Thomas Busby, MD.

**Gender**
Male	266
Female	283

**Ethnicity**
Non-Hispanic White	485
Black	0
Hispanic	16
Asian	0
Other	30
Native American	0

**Age**
From 65 to 74	243
From 75 to 84	198
85 and over	65
Less than 65	43

Conditions of Medicare patients treated by Dr. Leslie Thomas Busby, MD in 2022

Hypertension	55
High Cholesterol	57
Stroke	9
Ischemic Heart Disease	31
Depression	20
Chronic Kidney Disease	19
Asthma	9
Osteoperosis	22
Atrial Fibrilation	16
Heart Failure	16
Chronic Obstructive Pulmonary Disease	13
Diabetes	16
Dementia	5
Cancer	41

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Leslie Thomas Busby, MD for Medicare patients.

The highest averages for the top procedures that Dr. Leslie Thomas Busby, MD treated as a medical oncologist in BOULDER, CO were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and hospital care.

aspiration	15
biological response modifier (BRM) therapy	220
blood draw	20
bone marrow tests	30
chemotherapy	220
diagnostic procedures	30
doctor visit	838
hormone therapy	32
hospital care	156
inpatient care	156
minimally invasive procedures	309

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Leslie Thomas Busby, MD.

**Gender**
Male	241
Female	265

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	450
Native American / Alaskan Native	0
Hispanic	19
Other	19

**Age**
75 to 84	159
85 and over	60
Less than 65	43
65 to 74	244

Average of Total of Conditions of Medicare patients treated by Dr. Leslie Thomas Busby, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Leslie Thomas Busby, MD treated were hypertension, cancer, high cholesterol and ischemic heart disease.

Hypertension	44
High Cholesterol	33
Stroke	4
Ischemic Heart Disease	30
Depression	18
Chronic Kidney Disease	27
Asthma	6
Osteoporosis	9
Heart Failure	15
Chronic Obstructive Pulmonary Disease	13
Diabetes	16
Atrial Fibrillation	12
Dementia	7
Cancer	36

Education & Training

Dr. Leslie Thomas Busby, MD graduated from University of Nevada School of Medicine. He completed residency at University of Missouri-Kansas City (UMKC) Affiliated Hospitals. He is certified by the Hematology and Medical Oncology and has a state license in Colorado.

Medical School: University of Nevada School of Medicine

Residency: University of Missouri-Kansas City (UMKC) Affiliated Hospitals

Board Certification: Hematology and Medical Oncology

Licensed In: Colorado

Affiliations & Hospitals

Dr. Leslie Thomas Busby, MD is associated with these hospitals and organizations:

Boulder Community Health

UCHealth

CommonSpirit Health - Mountain Region

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General Payments

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

**Payments by Company**
AstraZeneca Pharmaceuticals LP	$11,512 IMFINZI $11,394	$118
Pfizer Inc.	$8,286 INLYTA $1,157	ELIQUIS $19	$7,110
AbbVie, Inc.	$4,690 ABT-199 $4,479	ABT 199 $111	Venclexta $101
Amgen Inc.	$404 Kyprolis $96	XGEVA $92	Prolia $72	$145
Janssen Biotech, Inc.	$261 IMBRUVICA $162	DARZALEX $99
Other	$1,048 Lenvima $123	ORGOVYX $103	ELITEK $100	Star $71	ROLAPITANT IV $50	Other $601

**Types of Payments**
Consulting Fee	$18,444
Travel and Lodging	$3,856
Food and Beverage	$1,654
Honoraria	$1,500
Education	$747

Research Payments

Dr. Leslie Thomas Busby, MD has received 3 research payments totaling $31,587.

Biography

Dr. Leslie Busby is a hospital medicine (hospitalist), adult hematology, and adult oncology specialist. He graduated from the University of Nevada School of Medicine and then he performed his residency at a hospital affiliated with the University of Missouri-Kansas City (UMKC) and a hospital affiliated with the University of Utah. His areas of expertise include hospital care. Dr. Busby is professionally affiliated with CommonSpirit Health - Mountain Region, UCHealth, and Boulder Community Health. According to Doctor.com, Dr. Busby is currently accepting new patients at his office in Boulder, CO.