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Home > CA Providers > Foot & Ankle Surgeons

Dr. John S Portwood, MD

(Dr. John Steven Portwood, M.D.)

(5 Ratings)

Specializes in: Foot & Ankle Surgery, Adult Orthopedic Reconstructive Surgery and Orthopedic Trauma

3838 Sherman Drive Suite 2
Riverside, CA 92503

(951) 354-7270

Dr. John S Portwood, MD is a foot and ankle surgeon in Riverside, CA specializing in foot & ankle surgery, adult orthopedic reconstructive surgery and orthopedic trauma.

Office Locations

3838 Sherman Drive Suite 2
Riverside, CA 92503

(951) 354-7270

(951) 354-0625

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. John S Portwood, MD treated as a foot and ankle surgeon in Riverside, CA during 2012 were aspiration, injections, X-rays and musculoskeletal imaging.

Volume of procedures performed by Dr. John S Portwood, MD for Medicare patients.

aspiration	193
doctor visit	525
hip imaging	55
injections	193
joint surgery	20
lower extremity surgery	20
musculoskeletal imaging	55
reconstructive surgery	20
X-rays	55

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. John S Portwood, MD treated as a foot and ankle surgeon in Riverside, CA during 2013 were aspiration, injections, X-rays and musculoskeletal imaging.

Volume of procedures performed by Dr. John S Portwood, MD for Medicare patients.

aspiration	216
doctor visit	517
hip imaging	46
hospital care	14
injections	216
inpatient care	14
joint surgery	14
lower extremity surgery	14
musculoskeletal imaging	46
reconstructive surgery	14
X-rays	46

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John S Portwood, MD.

**Gender**
Male	74
Female	163

**Ethnicity**
Non-Hispanic White	163
Black	18
Hispanic	43
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	99
From 75 to 84	76
85 and over	38
Less than 65	24

Conditions of Medicare patients treated by Dr. John S Portwood, MD in 2013

Hypertension	70
High Cholesterol	55
Stroke	7
Ischemic Heart Disease	35
Depression	25
Chronic Kidney Disease	24
Asthma	11
Osteoperosis	14
Atrial Fibrilation	11
Heart Failure	23
Chronic Obstructive Pulmonary Disease	16
Diabetes	37
Dementia	13
Cancer	8

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. John S Portwood, MD treated as a foot and ankle surgeon in Riverside, CA during 2014 were injections, aspiration, X-rays and musculoskeletal imaging.

Volume of procedures performed by Dr. John S Portwood, MD for Medicare patients.

aspiration	197
doctor visit	588
hip imaging	43
injections	213
joint surgery	15
lower extremity surgery	15
musculoskeletal imaging	43
reconstructive surgery	15
X-rays	43

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. John S Portwood, MD.

**Gender**
Male	79
Female	172

**Ethnicity**
Non-Hispanic White	181
Black	0
Hispanic	45
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	103
From 75 to 84	84
85 and over	42
Less than 65	22

Conditions of Medicare patients treated by Dr. John S Portwood, MD in 2014

Hypertension	68
High Cholesterol	51
Stroke	6
Ischemic Heart Disease	35
Depression	19
Chronic Kidney Disease	27
Asthma	9
Osteoperosis	12
Atrial Fibrilation	12
Heart Failure	22
Chronic Obstructive Pulmonary Disease	18
Diabetes	35
Dementia	13
Cancer	10

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. John S Portwood, MD treated as a foot and ankle surgeon in Riverside, CA during 2015 were aspiration, injections, X-rays and musculoskeletal imaging.

Volume of procedures performed by Dr. John S Portwood, MD for Medicare patients.

aspiration	168
doctor visit	505
hip imaging	34
injections	168
joint surgery	14
lower extremity surgery	14
musculoskeletal imaging	34
reconstructive surgery	14
X-rays	34

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John S Portwood, MD.

**Gender**
Male	146
Female	338

**Ethnicity**
Non-Hispanic White	344
Black	54
Hispanic	64
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	204
From 75 to 84	162
85 and over	64
Less than 65	54

Conditions of Medicare patients treated by Dr. John S Portwood, MD in 2015

Hypertension	63
High Cholesterol	52
Stroke	5
Ischemic Heart Disease	33
Depression	19
Chronic Kidney Disease	23
Asthma	15
Osteoperosis	9
Atrial Fibrilation	11
Heart Failure	24
Chronic Obstructive Pulmonary Disease	17
Diabetes	33
Dementia	7
Cancer	11

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John S Portwood, MD treated as a foot and ankle surgeon in Riverside, CA during 2016 were aspiration, injections, reconstructive surgery and joint surgery.

Volume of procedures performed by Dr. John S Portwood, MD for Medicare patients.

aspiration	207
doctor visit	540
injections	207
joint surgery	22
lower extremity surgery	22
reconstructive surgery	22

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John S Portwood, MD.

**Gender**
Male	88
Female	185

**Ethnicity**
Non-Hispanic White	195
Black	18
Hispanic	41
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	117
From 75 to 84	83
85 and over	45
Less than 65	28

Conditions of Medicare patients treated by Dr. John S Portwood, MD in 2016

Hypertension	65
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	34
Depression	21
Chronic Kidney Disease	29
Asthma	18
Osteoperosis	11
Atrial Fibrilation	11
Heart Failure	23
Chronic Obstructive Pulmonary Disease	16
Diabetes	34
Dementia	12
Cancer	12

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John S Portwood, MD treated as a foot and ankle surgeon in Riverside, CA during 2017 were aspiration, injections, reconstructive surgery and joint surgery.

Volume of procedures performed by Dr. John S Portwood, MD for Medicare patients.

aspiration	222
doctor visit	527
injections	222
joint surgery	25
lower extremity surgery	25
musculoskeletal imaging	18
reconstructive surgery	25
X-rays	18

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John S Portwood, MD.

**Gender**
Male	84
Female	167

**Ethnicity**
Non-Hispanic White	185
Black	17
Hispanic	29
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	107
From 75 to 84	82
85 and over	40
Less than 65	22

Conditions of Medicare patients treated by Dr. John S Portwood, MD in 2017

Hypertension	70
High Cholesterol	50
Stroke	6
Ischemic Heart Disease	35
Depression	22
Chronic Kidney Disease	35
Asthma	8
Osteoperosis	11
Atrial Fibrilation	14
Heart Failure	24
Chronic Obstructive Pulmonary Disease	19
Diabetes	35
Dementia	14
Cancer	13

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John S Portwood, MD treated as a foot and ankle surgeon in Riverside, CA during 2018 were aspiration, injections, reconstructive surgery and joint surgery.

Volume of procedures performed by Dr. John S Portwood, MD for Medicare patients.

aspiration	144
doctor visit	520
injections	144
joint surgery	13
lower extremity surgery	13
reconstructive surgery	13

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John S Portwood, MD.

**Gender**
Male	72
Female	145

**Ethnicity**
Non-Hispanic White	175
Black	11
Hispanic	20
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	100
From 75 to 84	72
85 and over	32
Less than 65	13

Conditions of Medicare patients treated by Dr. John S Portwood, MD in 2018

Hypertension	66
High Cholesterol	58
Stroke	0
Ischemic Heart Disease	29
Depression	21
Chronic Kidney Disease	34
Asthma	8
Osteoperosis	10
Atrial Fibrilation	11
Heart Failure	17
Chronic Obstructive Pulmonary Disease	13
Diabetes	33
Dementia	9
Cancer	14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John S Portwood, MD treated as a foot and ankle surgeon in Riverside, CA during 2019 were aspiration, injections, reconstructive surgery and joint surgery.

Volume of procedures performed by Dr. John S Portwood, MD for Medicare patients.

aspiration	144
doctor visit	463
hospital care	12
injections	144
inpatient care	12
joint surgery	12
lower extremity surgery	12
reconstructive surgery	12

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John S Portwood, MD.

**Gender**
Male	74
Female	134

**Ethnicity**
Non-Hispanic White	159
Black	0
Hispanic	24
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	89
From 75 to 84	71
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John S Portwood, MD in 2019

Hypertension	62
High Cholesterol	54
Stroke	0
Ischemic Heart Disease	32
Depression	20
Chronic Kidney Disease	36
Asthma	7
Osteoperosis	10
Atrial Fibrilation	9
Heart Failure	17
Chronic Obstructive Pulmonary Disease	11
Diabetes	32
Dementia	7
Cancer	10

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. John S Portwood, MD treated as a foot and ankle surgeon in Riverside, CA during 2020 were aspiration and injections.

Volume of procedures performed by Dr. John S Portwood, MD for Medicare patients.

aspiration	118
doctor visit	256
injections	118

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John S Portwood, MD.

**Gender**
Male	48
Female	88

**Ethnicity**
Non-Hispanic White	102
Black	0
Hispanic	15
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	54
From 75 to 84	51
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John S Portwood, MD in 2020

Hypertension	64
High Cholesterol	49
Stroke	0
Ischemic Heart Disease	29
Depression	16
Chronic Kidney Disease	35
Asthma	0
Osteoperosis	12
Atrial Fibrilation	0
Heart Failure	17
Chronic Obstructive Pulmonary Disease	9
Diabetes	29
Dementia	10
Cancer	12

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. John S Portwood, MD treated as a foot and ankle surgeon in Riverside, CA during 2021 were aspiration and injections.

Volume of procedures performed by Dr. John S Portwood, MD for Medicare patients.

aspiration	46
doctor visit	63
injections	46

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John S Portwood, MD.

**Gender**
Male	16
Female	38

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

**Age**
From 65 to 74	16
From 75 to 84	19
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John S Portwood, MD in 2021

Hypertension	67
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	33
Depression	0
Chronic Kidney Disease	37
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	20
Chronic Obstructive Pulmonary Disease	0
Diabetes	30
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2021

Volume of procedures performed by Dr. John S Portwood, MD for Medicare patients.

The highest averages for the top procedures that Dr. John S Portwood, MD treated as a foot and ankle surgeon in Riverside, CA were injections, aspiration, hip imaging and X-rays.

aspiration	165
doctor visit	450
hip imaging	44
hospital care	13
injections	167
inpatient care	13
joint surgery	16
lower extremity surgery	16
musculoskeletal imaging	39
reconstructive surgery	16
X-rays	39

Average Medicare Patient Data From 2012 - 2021

Information about Medicare patients treated by Dr. John S Portwood, MD.

**Gender**
Female	143
Male	68

**Ethnicity**
Black / African American	11
Asian / Pacific Islander	0
Non-Hispanic White	154
Native American / Alaskan Native	0
Hispanic	28
Other	0

**Age**
85 and over	26
75 to 84	70
Less than 65	16
65 to 74	88

Average of Total of Conditions of Medicare patients treated by Dr. John S Portwood, MD From 2012 - 2021

The highest averages of the most common conditions of Medicare patients that Dr. John S Portwood, MD treated were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	59
High Cholesterol	47
Stroke	2
Ischemic Heart Disease	29
Depression	16
Chronic Kidney Disease	28
Asthma	7
Osteoporosis	8
Heart Failure	18
Chronic Obstructive Pulmonary Disease	11
Diabetes	29
Atrial Fibrillation	7
Dementia	8
Cancer	9

Education & Training

He has a state license in California.

Licensed In: California

Ratings & Reviews

Dr. John S Portwood, MD has a good overall rating with an average of 3.4 out of 5 stars based on 5 ratings. We collect ratings and reviews of Dr. John S Portwood, MD from all over the web to help you find the right in Riverside, CA.

3.4

Overall Rating

(5 Ratings)

Leave a Review

General Payments

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

**Payments by Company**
Stryker Corporation	$384 TRAUMA & EXTREMITIES $136	Mako $85	Reunion $52	Variax $36	TRIATHLON $35	Other $39
Purdue Pharma L.P.	$179 OXYCONTIN $80	BUTRANS $54	SYMPROIC $18	INTERMEZZO $14	$13
Daiichi Sankyo Inc.	$138 MOVANTIK $138
Linvatec Corporation	$125 Linvatec Shoulder Arthroscopy $107	Linvatec Extremities $18
Zimmer Biomet Holdings, Inc.	$95 Biomet Orthopak $41	Bone Healing $32	EBI Bone Healing System $22
Other	$610 AMRIX $77	XARTEMIS XR $60	OFIRMEV $58	Duexis $45	CELEBREX $41	Other $328

**Types of Payments**
Food and Beverage	$1,521
Gift	$10

Biography

Dr. John Portwood's specialties are orthopedic trauma, adult orthopedic reconstructive surgery, and foot & ankle surgery. He practices in Riverside, CA. Patient ratings for Dr. Portwood average 3.5 stars (out of 5).

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Dr. John S Portwood, MD

Office Locations

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. John S Portwood, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John S Portwood, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John S Portwood, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John S Portwood, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John S Portwood, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John S Portwood, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John S Portwood, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John S Portwood, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John S Portwood, MD in 2021

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2021

Average Medicare Patient Data From 2012 - 2021

Average of Total of Conditions of Medicare patients treated by Dr. John S Portwood, MD From 2012 - 2021

Education & Training

Ratings & Reviews

General Payments

Biography

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