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Home > CO Providers > Anesthesiologists

Dr. Daniel Alan Drennan, MD

(7 Ratings)

Specializes in: Anesthesiology and Pain Medicine

Medical College of Georgia

340 East 1st Avenue Suite 102
Broomfield, CO 80020

(303) 469-3182

Dr. Daniel Alan Drennan, MD is an anesthesiologist in Broomfield, CO specializing in anesthesiology and pain medicine. He graduated from Medical College of Georgia. Dr. Daniel Alan Drennan, MD is affiliated with HealthOne, CommonSpirit Health - Mountain Region and HCA HealthONE Mountain Ridge.

Office Locations

HCA HealthONE Mountain Ridge

340 East 1st Avenue Suite 102
Broomfield, CO 80020

(303) 469-3182

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CommonSpirit Health - Mountain Region

400 Indiana Street Suite 320
Golden, CO 80401

(303) 469-3182

(303) 469-4693

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5351 S Roslyn Street Suite 200
Greenwood Village, CO 80111

(303) 469-4693

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Noteworthy Medicare Patient Procedures Performed by Dr. Daniel Alan Drennan, MD in 2023

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

Top 5%

By Volume:

facet rhizotomy injection

rhizotomy

In 2023, Dr. Daniel Alan Drennan, MD performed more facet rhizotomy injection, and rhizotomy (nerve ablation) procedures for Medicare patients than 95% of providers in related specialties within Colorado.

Top 10%

By Volume:

injections

nerve block

In 2023, Dr. Daniel Alan Drennan, MD performed more injections, and nerve block procedures for Medicare patients than 90% of providers in related specialties within Colorado.

Top 25%

By Volume:

femoral nerve block injection

pain management

sacroiliac joint injection

In 2012, Dr. Daniel Alan Drennan, MD performed more femoral nerve block injection, pain management, and sacroiliac (SI) joint injection procedures for Medicare patients than 75% of providers in related specialties within Colorado.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Daniel Alan Drennan, MD treated as an anesthesiologist in Broomfield, CO during 2012 were pain management, spinal procedures and injections.

Volume of procedures performed by Dr. Daniel Alan Drennan, MD for Medicare patients.

doctor visit	296
injections	14
pain management	14
spinal procedures	14

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Daniel Alan Drennan, MD treated as an anesthesiologist in Broomfield, CO during 2013 were pain management, injections, nerve block and spinal procedures.

Volume of procedures performed by Dr. Daniel Alan Drennan, MD for Medicare patients.

aspiration	28
doctor visit	825
injections	256
minimally invasive procedures	77
nerve block	188
nerve procedures	51
neurostimulator lead placement	26
pain management	279
spinal procedures	185

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel Alan Drennan, MD.

**Gender**
Male	97
Female	162

**Ethnicity**
Non-Hispanic White	225
Black	0
Hispanic	22
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	88
From 75 to 84	0
85 and over	0
Less than 65	134

Conditions of Medicare patients treated by Dr. Daniel Alan Drennan, MD in 2013

Hypertension	44
High Cholesterol	39
Stroke	0
Ischemic Heart Disease	20
Depression	38
Chronic Kidney Disease	16
Asthma	8
Osteoperosis	10
Atrial Fibrilation	0
Heart Failure	10
Chronic Obstructive Pulmonary Disease	13
Diabetes	22
Dementia	6
Cancer	5

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Daniel Alan Drennan, MD treated as an anesthesiologist in Broomfield, CO during 2014 were lab tests, pain management, injections and nerve block.

Volume of procedures performed by Dr. Daniel Alan Drennan, MD for Medicare patients.

aspiration	19
doctor visit	581
injections	241
lab tests	1616
minimally invasive procedures	35
nerve block	206
nerve procedures	35
pain management	257
spinal procedures	93

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel Alan Drennan, MD.

**Gender**
Male	110
Female	189

**Ethnicity**
Non-Hispanic White	246
Black	0
Hispanic	31
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	91
From 75 to 84	0
85 and over	0
Less than 65	170

Conditions of Medicare patients treated by Dr. Daniel Alan Drennan, MD in 2014

Hypertension	52
High Cholesterol	38
Stroke	4
Ischemic Heart Disease	22
Depression	46
Chronic Kidney Disease	20
Asthma	11
Osteoperosis	10
Atrial Fibrilation	5
Heart Failure	13
Chronic Obstructive Pulmonary Disease	18
Diabetes	23
Dementia	6
Cancer	5

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Daniel Alan Drennan, MD treated as an anesthesiologist in Broomfield, CO during 2015 were lab tests, pain management, injections and nerve block.

Volume of procedures performed by Dr. Daniel Alan Drennan, MD for Medicare patients.

aspiration	34
doctor visit	898
injections	219
lab tests	332
mental health therapy	42
minimally invasive procedures	38
nerve block	218
nerve procedures	38
pain management	223
spinal procedures	88

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel Alan Drennan, MD.

**Gender**
Male	220
Female	378

**Ethnicity**
Non-Hispanic White	494
Black	0
Hispanic	68
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	162
From 75 to 84	0
85 and over	0
Less than 65	358

Conditions of Medicare patients treated by Dr. Daniel Alan Drennan, MD in 2015

Hypertension	47
High Cholesterol	33
Stroke	0
Ischemic Heart Disease	23
Depression	41
Chronic Kidney Disease	21
Asthma	17
Osteoperosis	9
Atrial Fibrilation	4
Heart Failure	10
Chronic Obstructive Pulmonary Disease	16
Diabetes	24
Dementia	7
Cancer	6

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Daniel Alan Drennan, MD treated as an anesthesiologist in Broomfield, CO during 2016 were pain management, nerve block, injections and spinal procedures.

Volume of procedures performed by Dr. Daniel Alan Drennan, MD for Medicare patients.

doctor visit	1083
injections	183
mental health therapy	92
minimally invasive procedures	74
nerve block	196
nerve procedures	74
pain management	257
spinal procedures	122

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel Alan Drennan, MD.

**Gender**
Male	113
Female	200

**Ethnicity**
Non-Hispanic White	258
Black	0
Hispanic	34
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	86
From 75 to 84	39
85 and over	12
Less than 65	176

Conditions of Medicare patients treated by Dr. Daniel Alan Drennan, MD in 2016

Hypertension	52
High Cholesterol	38
Stroke	4
Ischemic Heart Disease	20
Depression	42
Chronic Kidney Disease	27
Asthma	22
Osteoperosis	12
Atrial Fibrilation	5
Heart Failure	11
Chronic Obstructive Pulmonary Disease	17
Diabetes	24
Dementia	6
Cancer	7

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Daniel Alan Drennan, MD treated as an anesthesiologist in Broomfield, CO during 2017 were manual therapy, pain management, rehabilitation and nerve block.

Volume of procedures performed by Dr. Daniel Alan Drennan, MD for Medicare patients.

doctor visit	1023
injections	130
manual therapy	284
mental health therapy	35
minimally invasive procedures	155
nerve block	163
nerve procedures	132
neurostimulator lead placement	23
pain management	262
rehabilitation	207
spinal procedures	103

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel Alan Drennan, MD.

**Gender**
Male	104
Female	158

**Ethnicity**
Non-Hispanic White	227
Black	0
Hispanic	21
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	82
From 75 to 84	41
85 and over	14
Less than 65	125

Conditions of Medicare patients treated by Dr. Daniel Alan Drennan, MD in 2017

Hypertension	55
High Cholesterol	35
Stroke	0
Ischemic Heart Disease	24
Depression	42
Chronic Kidney Disease	29
Asthma	11
Osteoperosis	9
Atrial Fibrilation	7
Heart Failure	15
Chronic Obstructive Pulmonary Disease	12
Diabetes	20
Dementia	8
Cancer	6

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Daniel Alan Drennan, MD treated as an anesthesiologist in Broomfield, CO during 2018 were pain management, nerve block, injections and nerve procedures.

Volume of procedures performed by Dr. Daniel Alan Drennan, MD for Medicare patients.

doctor visit	664
injections	252
mental health therapy	62
minimally invasive procedures	200
nerve block	267
nerve procedures	200
pain management	435
spinal procedures	64

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel Alan Drennan, MD.

**Gender**
Male	80
Female	130

**Ethnicity**
Non-Hispanic White	175
Black	0
Hispanic	23
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	78
From 75 to 84	33
85 and over	13
Less than 65	86

Conditions of Medicare patients treated by Dr. Daniel Alan Drennan, MD in 2018

Hypertension	60
High Cholesterol	44
Stroke	0
Ischemic Heart Disease	26
Depression	53
Chronic Kidney Disease	28
Asthma	10
Osteoperosis	11
Atrial Fibrilation	0
Heart Failure	19
Chronic Obstructive Pulmonary Disease	15
Diabetes	24
Dementia	9
Cancer	6

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Daniel Alan Drennan, MD treated as an anesthesiologist in Broomfield, CO during 2019 were pain management, injections, nerve block and manual therapy.

Volume of procedures performed by Dr. Daniel Alan Drennan, MD for Medicare patients.

doctor visit	677
injections	265
manual therapy	233
minimally invasive procedures	171
nerve block	250
nerve procedures	171
pain management	382
rehabilitation	206
spinal procedures	74

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel Alan Drennan, MD.

**Gender**
Male	98
Female	152

**Ethnicity**
Non-Hispanic White	216
Black	0
Hispanic	16
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	109
From 75 to 84	0
85 and over	0
Less than 65	84

Conditions of Medicare patients treated by Dr. Daniel Alan Drennan, MD in 2019

Hypertension	57
High Cholesterol	44
Stroke	0
Ischemic Heart Disease	24
Depression	45
Chronic Kidney Disease	30
Asthma	11
Osteoperosis	19
Atrial Fibrilation	6
Heart Failure	15
Chronic Obstructive Pulmonary Disease	17
Diabetes	20
Dementia	6
Cancer	8

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Daniel Alan Drennan, MD treated as an anesthesiologist in Broomfield, CO during 2020 were pain management, nerve procedures, minimally invasive procedures and injections.

Volume of procedures performed by Dr. Daniel Alan Drennan, MD for Medicare patients.

doctor visit	1207
injections	144
minimally invasive procedures	145
nerve block	108
nerve procedures	145
pain management	257
spinal procedures	96

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel Alan Drennan, MD.

**Gender**
Male	122
Female	186

**Ethnicity**
Non-Hispanic White	276
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	139
From 75 to 84	56
85 and over	13
Less than 65	100

Conditions of Medicare patients treated by Dr. Daniel Alan Drennan, MD in 2020

Hypertension	55
High Cholesterol	41
Stroke	4
Ischemic Heart Disease	25
Depression	44
Chronic Kidney Disease	31
Asthma	10
Osteoperosis	13
Atrial Fibrilation	5
Heart Failure	12
Chronic Obstructive Pulmonary Disease	15
Diabetes	19
Dementia	9
Cancer	6

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Daniel Alan Drennan, MD treated as an anesthesiologist in Broomfield, CO during 2021 were pain management, nerve procedures, minimally invasive procedures and nerve block.

Volume of procedures performed by Dr. Daniel Alan Drennan, MD for Medicare patients.

doctor visit	750
injections	31
minimally invasive procedures	58
nerve block	31
nerve procedures	58
pain management	89
spinal procedures	31

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel Alan Drennan, MD.

**Gender**
Male	87
Female	117

**Ethnicity**
Non-Hispanic White	181
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	96
From 75 to 84	0
85 and over	0
Less than 65	67

Conditions of Medicare patients treated by Dr. Daniel Alan Drennan, MD in 2021

Hypertension	50
High Cholesterol	39
Stroke	0
Ischemic Heart Disease	26
Depression	43
Chronic Kidney Disease	28
Asthma	12
Osteoperosis	10
Atrial Fibrilation	5
Heart Failure	13
Chronic Obstructive Pulmonary Disease	13
Diabetes	18
Dementia	6
Cancer	8

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Daniel Alan Drennan, MD treated as an anesthesiologist in Broomfield, CO during 2022 were pain management, nerve procedures, minimally invasive procedures and injections.

Volume of procedures performed by Dr. Daniel Alan Drennan, MD for Medicare patients.

doctor visit	798
injections	88
minimally invasive procedures	93
nerve block	55
nerve procedures	93
pain management	165
spinal procedures	72

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel Alan Drennan, MD.

**Gender**
Male	80
Female	124

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

**Age**
From 65 to 74	98
From 75 to 84	0
85 and over	0
Less than 65	56

Conditions of Medicare patients treated by Dr. Daniel Alan Drennan, MD in 2022

Hypertension	55
High Cholesterol	54
Stroke	0
Ischemic Heart Disease	16
Depression	38
Chronic Kidney Disease	19
Asthma	10
Osteoperosis	19
Atrial Fibrilation	9
Heart Failure	10
Chronic Obstructive Pulmonary Disease	20
Diabetes	14
Dementia	0
Cancer	13

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Daniel Alan Drennan, MD for Medicare patients.

The highest averages for the top procedures that Dr. Daniel Alan Drennan, MD treated as an anesthesiologist in Broomfield, CO were lab tests, manual therapy, pain management and rehabilitation.

aspiration	27
doctor visit	800
injections	165
lab tests	974
manual therapy	258
mental health therapy	57
minimally invasive procedures	104
nerve block	168
nerve procedures	99
neurostimulator lead placement	24
pain management	238
rehabilitation	206
spinal procedures	85

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Daniel Alan Drennan, MD.

**Gender**
Male	101
Female	163

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	225
Native American / Alaskan Native	0
Hispanic	19
Other	0

**Age**
75 to 84	15
85 and over	4
Less than 65	123
65 to 74	93

Average of Total of Conditions of Medicare patients treated by Dr. Daniel Alan Drennan, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Daniel Alan Drennan, MD treated were hypertension, depression, high cholesterol and chronic kidney disease.

Hypertension	47
High Cholesterol	36
Stroke	1
Ischemic Heart Disease	20
Depression	39
Chronic Kidney Disease	22
Asthma	11
Osteoporosis	11
Heart Failure	11
Chronic Obstructive Pulmonary Disease	14
Diabetes	18
Atrial Fibrillation	4
Dementia	5
Cancer	6

Education & Training

Dr. Daniel Alan Drennan, MD graduated from Medical College of Georgia. He completed residency at University of California, Irvine Affiliated Hospitals. He is certified by the American Board of Anesthesiology (ABA) Anesthesiology and has a state license in Colorado.

Medical School: Medical College of Georgia

Residency: University of California, Irvine Affiliated Hospitals

Board Certification: American Board of Anesthesiology (ABA) Anesthesiology

Licensed In: Colorado

Affiliations & Hospitals

Dr. Daniel Alan Drennan, MD is associated with these hospitals and organizations:

HealthOne

CommonSpirit Health - Mountain Region

HCA HealthONE Mountain Ridge

Ratings & Reviews

Dr. Daniel Alan Drennan, MD has a high overall rating with an average of 3.86 out of 5 stars based on 7 ratings. We collect ratings and reviews of Dr. Daniel Alan Drennan, MD from all over the web to help you find the right in Broomfield, CO.

3.86

Overall Rating

(7 Ratings)

Leave a Review

Reviews Left On DocSpot

Overall Rating: 5.0 2017-10-18

Dr. Drennan has been managing my headaches for almost two years now.  I had trouble maintaining a job and was applying  for disability when I first saw him. Ive been at the same job for over a year now and  haven't used up all my sick days due to my headaches.

General Payments

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

**Payments by Company**
St. Jude Medical, Inc.	$1,781 Neuro-Chronic Pain $1,070	St. Jude Medical $678	S-Series $33
Boston Scientific Corporation	$1,424 SPECTRA WAVEWRITER $332	PAIN MANAGEMENT $302	WaveWriter Alpha Prime 16 $243	GENERAL - PAIN MANAGEMENT $111	GENERAL PAIN MANAGEMENT $104	Other $333
Pfizer Inc.	$248 LYRICA $109	FLECTOR PATCH $59	EMBEDA $58	ZAVZPRET $22
Abbott Laboratories	$213 PROCLAIM $119	Proclaim IPG $56	Axium $22	Spinal Cord Stimulation Accessories $13	Infinity $4
Egalet US Inc	$158 Sprix $158
Other	$1,010 NURTEC ODT $82	UBRELVY $73	INTERVENTIONAL SPINE $68	iFuse Implant $64	Zipsor $62	Other $661

**Types of Payments**
Food and Beverage	$4,177
Travel and Lodging	$644
Education	$13

Research Payments

Dr. Daniel Alan Drennan, MD has received 4 research payments totaling $2,992.

Biography

Dr. Daniel Drennan is a specialist in anesthesiology and pain medicine in Golden, CO, Greenwood Village, CO, and Broomfield, CO. The average patient rating for Dr. Drennan is 4.0 stars (out of 5). Dr. Drennan has a special interest in pain management. His hospital/clinic affiliations include CommonSpirit Health - Mountain Region and HealthOne. After completing medical school at Medical College of Georgia, he performed his residency at a hospital affiliated with the University of California, Irvine.

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Dr. Daniel Alan Drennan, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Daniel Alan Drennan, MD in 2023

By Volume:

By Volume:

By Volume:

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. Daniel Alan Drennan, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel Alan Drennan, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel Alan Drennan, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel Alan Drennan, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel Alan Drennan, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel Alan Drennan, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel Alan Drennan, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel Alan Drennan, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel Alan Drennan, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel Alan Drennan, 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. Daniel Alan Drennan, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Research Payments

Biography

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