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Dr. Michael Drew Duffin, MD

(5 Ratings)

Specializes in: Adult Rheumatology

3565 Del Amo Boulevard
Torrance, CA 90503

(310) 214-0811

Dr. Michael Drew Duffin, MD is a rheumatologist in Torrance, CA specializing in adult rheumatology. Dr. Michael Drew Duffin, MD is affiliated with SKY LAKES MEDICAL CENTER INC.

Office Locations

3565 Del Amo Boulevard
Torrance, CA 90503

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Michael Drew Duffin, MD treated as a rheumatologist in Torrance, CA during 2012 were injections, aspiration and pain management.

Volume of procedures performed by Dr. Michael Drew Duffin, MD for Medicare patients.

aspiration	59
doctor visit	255
injections	77
pain management	18

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Michael Drew Duffin, MD treated as a rheumatologist in Torrance, CA during 2013 were injections, aspiration and pain management.

Volume of procedures performed by Dr. Michael Drew Duffin, MD for Medicare patients.

aspiration	58
doctor visit	214
injections	76
pain management	18

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Drew Duffin, MD.

**Gender**
Male	38
Female	79

**Ethnicity**
Non-Hispanic White	44
Black	22
Hispanic	31
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	48
From 75 to 84	0
85 and over	0
Less than 65	40

Conditions of Medicare patients treated by Dr. Michael Drew Duffin, MD in 2013

Hypertension	57
High Cholesterol	41
Stroke	0
Ischemic Heart Disease	26
Depression	24
Chronic Kidney Disease	22
Asthma	10
Osteoperosis	10
Atrial Fibrilation	0
Heart Failure	15
Chronic Obstructive Pulmonary Disease	11
Diabetes	40
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Michael Drew Duffin, MD treated as a rheumatologist in Torrance, CA during 2014 were injections, aspiration and pain management.

Volume of procedures performed by Dr. Michael Drew Duffin, MD for Medicare patients.

aspiration	73
doctor visit	230
injections	91
pain management	18

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Drew Duffin, MD.

**Gender**
Male	30
Female	79

**Ethnicity**
Non-Hispanic White	46
Black	17
Hispanic	30
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	49
From 75 to 84	0
85 and over	0
Less than 65	33

Conditions of Medicare patients treated by Dr. Michael Drew Duffin, MD in 2014

Hypertension	65
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	31
Depression	27
Chronic Kidney Disease	22
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	17
Chronic Obstructive Pulmonary Disease	17
Diabetes	43
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Michael Drew Duffin, MD treated as a rheumatologist in Torrance, CA during 2015 were injections, aspiration, X-rays and musculoskeletal imaging.

Volume of procedures performed by Dr. Michael Drew Duffin, MD for Medicare patients.

aspiration	75
doctor visit	218
injections	100
musculoskeletal imaging	27
pain management	25
X-rays	27

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Drew Duffin, MD.

**Gender**
Male	72
Female	158

**Ethnicity**
Non-Hispanic White	90
Black	44
Hispanic	52
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	102
From 75 to 84	46
85 and over	22
Less than 65	60

Conditions of Medicare patients treated by Dr. Michael Drew Duffin, MD in 2015

Hypertension	58
High Cholesterol	49
Stroke	0
Ischemic Heart Disease	25
Depression	22
Chronic Kidney Disease	29
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	14
Chronic Obstructive Pulmonary Disease	0
Diabetes	34
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Michael Drew Duffin, MD treated as a rheumatologist in Torrance, CA during 2016 were injections, aspiration, pain management and blood draw.

Volume of procedures performed by Dr. Michael Drew Duffin, MD for Medicare patients.

aspiration	116
blood draw	24
doctor visit	284
injections	153
pain management	37

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Drew Duffin, MD.

**Gender**
Male	33
Female	89

**Ethnicity**
Non-Hispanic White	52
Black	0
Hispanic	28
Asian	20
Other	0
Native American	0

**Age**
From 65 to 74	48
From 75 to 84	32
85 and over	14
Less than 65	28

Conditions of Medicare patients treated by Dr. Michael Drew Duffin, MD in 2016

Hypertension	65
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	24
Depression	24
Chronic Kidney Disease	29
Asthma	13
Osteoperosis	9
Atrial Fibrilation	0
Heart Failure	14
Chronic Obstructive Pulmonary Disease	9
Diabetes	32
Dementia	12
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Michael Drew Duffin, MD treated as a rheumatologist in Torrance, CA during 2017 were injections, aspiration, blood draw and pain management.

Volume of procedures performed by Dr. Michael Drew Duffin, MD for Medicare patients.

aspiration	114
blood draw	38
doctor visit	233
injections	146
pain management	32

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Drew Duffin, MD.

**Gender**
Male	40
Female	94

**Ethnicity**
Non-Hispanic White	64
Black	17
Hispanic	29
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	57
From 75 to 84	30
85 and over	18
Less than 65	29

Conditions of Medicare patients treated by Dr. Michael Drew Duffin, MD in 2017

Hypertension	66
High Cholesterol	43
Stroke	0
Ischemic Heart Disease	25
Depression	22
Chronic Kidney Disease	34
Asthma	9
Osteoperosis	12
Atrial Fibrilation	9
Heart Failure	18
Chronic Obstructive Pulmonary Disease	12
Diabetes	34
Dementia	12
Cancer	0

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

Volume of procedures performed by Dr. Michael Drew Duffin, MD for Medicare patients.

doctor visit	16

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Drew Duffin, MD.

**Age**
From 65 to 74	11
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Michael Drew Duffin, MD in 2018

Hypertension	71
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Michael Drew Duffin, MD treated as a rheumatologist in Torrance, CA during 2019 were aspiration and injections.

Volume of procedures performed by Dr. Michael Drew Duffin, MD for Medicare patients.

aspiration	80
doctor visit	949
injections	80

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Drew Duffin, MD.

**Gender**
Male	128
Female	333

**Ethnicity**
Non-Hispanic White	412
Black	0
Hispanic	24
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	222
From 75 to 84	115
85 and over	33
Less than 65	91

Conditions of Medicare patients treated by Dr. Michael Drew Duffin, MD in 2019

Hypertension	60
High Cholesterol	38
Stroke	0
Ischemic Heart Disease	26
Depression	34
Chronic Kidney Disease	30
Asthma	10
Osteoperosis	17
Atrial Fibrilation	7
Heart Failure	18
Chronic Obstructive Pulmonary Disease	19
Diabetes	30
Dementia	6
Cancer	9

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Michael Drew Duffin, MD treated as a rheumatologist in Torrance, CA during 2020 were aspiration and injections.

Volume of procedures performed by Dr. Michael Drew Duffin, MD for Medicare patients.

aspiration	99
doctor visit	949
injections	99

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Drew Duffin, MD.

**Gender**
Male	129
Female	317

**Ethnicity**
Non-Hispanic White	400
Black	0
Hispanic	19
Asian	0
Other	0
Native American	13

**Age**
From 65 to 74	208
From 75 to 84	113
85 and over	33
Less than 65	92

Conditions of Medicare patients treated by Dr. Michael Drew Duffin, MD in 2020

Hypertension	55
High Cholesterol	33
Stroke	3
Ischemic Heart Disease	27
Depression	30
Chronic Kidney Disease	26
Asthma	8
Osteoperosis	17
Atrial Fibrilation	7
Heart Failure	16
Chronic Obstructive Pulmonary Disease	17
Diabetes	26
Dementia	7
Cancer	8

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Michael Drew Duffin, MD treated as a rheumatologist in Torrance, CA during 2021 were aspiration and injections.

Volume of procedures performed by Dr. Michael Drew Duffin, MD for Medicare patients.

aspiration	95
doctor visit	936
injections	95

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Drew Duffin, MD.

**Gender**
Male	128
Female	312

**Ethnicity**
Non-Hispanic White	390
Black	0
Hispanic	23
Asian	0
Other	0
Native American	13

**Age**
From 65 to 74	215
From 75 to 84	108
85 and over	28
Less than 65	89

Conditions of Medicare patients treated by Dr. Michael Drew Duffin, MD in 2021

Hypertension	60
High Cholesterol	35
Stroke	0
Ischemic Heart Disease	25
Depression	31
Chronic Kidney Disease	28
Asthma	8
Osteoperosis	17
Atrial Fibrilation	8
Heart Failure	16
Chronic Obstructive Pulmonary Disease	15
Diabetes	29
Dementia	7
Cancer	8

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Michael Drew Duffin, MD treated as a rheumatologist in Torrance, CA during 2022 were aspiration and injections.

Volume of procedures performed by Dr. Michael Drew Duffin, MD for Medicare patients.

aspiration	50
doctor visit	891
injections	50

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Drew Duffin, MD.

**Gender**
Male	144
Female	300

**Ethnicity**
Non-Hispanic White	396
Black	0
Hispanic	20
Asian	0
Other	0
Native American	16

**Age**
From 65 to 74	211
From 75 to 84	128
85 and over	20
Less than 65	85

Conditions of Medicare patients treated by Dr. Michael Drew Duffin, MD in 2022

Hypertension	67
High Cholesterol	49
Stroke	3
Ischemic Heart Disease	20
Depression	25
Chronic Kidney Disease	19
Asthma	12
Osteoperosis	23
Atrial Fibrilation	14
Heart Failure	12
Chronic Obstructive Pulmonary Disease	20
Diabetes	29
Dementia	5
Cancer	9

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Michael Drew Duffin, MD for Medicare patients.

The highest averages for the top procedures that Dr. Michael Drew Duffin, MD treated as a rheumatologist in Torrance, CA were injections, aspiration, blood draw and X-rays.

aspiration	81
blood draw	31
doctor visit	470
injections	96
musculoskeletal imaging	27
pain management	24
X-rays	27

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Michael Drew Duffin, MD.

**Gender**
Male	67
Female	160

**Ethnicity**
Black / African American	9
Asian / Pacific Islander	1
Non-Hispanic White	172
Hispanic	23
Native American / Alaskan Native	3
Other	0

**Age**
75 to 84	52
85 and over	15
Less than 65	49
65 to 74	106

Average of Total of Conditions of Medicare patients treated by Dr. Michael Drew Duffin, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Michael Drew Duffin, MD treated were hypertension, high cholesterol, diabetes and chronic kidney disease.

Hypertension	56
High Cholesterol	42
Stroke	0
Ischemic Heart Disease	20
Depression	21
Chronic Kidney Disease	21
Asthma	6
Osteoporosis	9
Heart Failure	12
Chronic Obstructive Pulmonary Disease	10
Diabetes	27
Atrial Fibrillation	4
Cancer	3
Dementia	4

Education & Training

He has a state license in California.

Licensed In: California

Affiliations & Hospitals

Dr. Michael Drew Duffin, MD is associated with these hospitals and organizations:

SKY LAKES MEDICAL CENTER INC

Ratings & Reviews

Dr. Michael Drew Duffin, MD has an exceptional overall rating with an average of 4.6 out of 5 stars based on 5 ratings. We collect ratings and reviews of Dr. Michael Drew Duffin, MD from all over the web to help you find the right in Torrance, CA.

4.6

Overall Rating

(5 Ratings)

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General Payments

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

**Payments by Company**
Janssen Biotech, Inc.	$1,053 SIMPONI ARIA $441	STELARA $329	SIMPONI $231	REMICADE $52
AbbVie, Inc.	$969 Humira $865	$104
Amgen Inc.	$908 Enbrel $662	Prolia $219	$26
Pfizer Inc.	$784 XELJANZ $681	LYRICA $78	INFLECTRA $26
Celgene Corporation	$755 $755
Other	$2,939 COSENTYX $194	RAYOS $171	Actemra $167	Rituxan $163	FORTEO $161	Other $2,083