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Dr. Gregory Leon Umphrey, MD

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Specializes in: Neuromuscular Medicine and Physiatry (Physical Medicine & Rehabilitation)

3090 N 3rd Avenue
Phoenix, AZ 85013

(602) 745-2930

Dr. Gregory Leon Umphrey, MD is a neuromuscular medicine in Scottsdale, AZ specializing in neuromuscular medicine and physiatry (physical medicine & rehabilitation).

Office Locations

13400 E Shea Boulevard
Scottsdale, AZ 85259

open_in_new

3090 N 3rd Avenue
Phoenix, AZ 85013

(602) 745-2930

(602) 745-2964

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Noteworthy Medicare Patient Procedures Performed by Dr. Gregory Leon Umphrey, MD in 2024

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

Top 5%

By Volume:

peripheral nerve block

sacroiliac joint injection

In 2024, Dr. Gregory Leon Umphrey, MD performed more peripheral nerve block, and sacroiliac (SI) joint injection procedures for Medicare patients than 95% of providers in related specialties within Arizona.

Top 25%

By Volume:

injections

major joint aspiration

In 2012, Dr. Gregory Leon Umphrey, MD performed more injections, and major joint aspiration procedures for Medicare patients than 75% of providers in related specialties within Arizona.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Gregory Leon Umphrey, MD treated as a neuromuscular medicine in Scottsdale, AZ during 2012 were injections, pain management, diagnostic procedures and spinal procedures.

Volume of procedures performed by Dr. Gregory Leon Umphrey, MD for Medicare patients.

aspiration	143
diagnostic procedures	309
doctor visit	289
injections	522
lab tests	27
nerve block	100
pain management	379
preventive care	27
spinal procedures	195

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Gregory Leon Umphrey, MD treated as a neuromuscular medicine in Scottsdale, AZ during 2013 were injections, pain management, spinal procedures and aspiration.

Volume of procedures performed by Dr. Gregory Leon Umphrey, MD for Medicare patients.

aspiration	218
diagnostic procedures	34
doctor visit	371
injections	755
lab tests	35
nerve block	78
pain management	537
preventive care	35
spinal procedures	240

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Leon Umphrey, MD.

**Gender**
Male	122
Female	167

**Ethnicity**
Non-Hispanic White	252
Black	0
Hispanic	15
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	153
From 75 to 84	78
85 and over	24
Less than 65	34

Conditions of Medicare patients treated by Dr. Gregory Leon Umphrey, MD in 2013

Hypertension	64
High Cholesterol	54
Stroke	6
Ischemic Heart Disease	34
Depression	18
Chronic Kidney Disease	18
Asthma	6
Osteoperosis	10
Atrial Fibrilation	8
Heart Failure	10
Chronic Obstructive Pulmonary Disease	10
Diabetes	24
Dementia	7
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Gregory Leon Umphrey, MD treated as a neuromuscular medicine in Scottsdale, AZ during 2014 were injections, pain management, spinal procedures and aspiration.

Volume of procedures performed by Dr. Gregory Leon Umphrey, MD for Medicare patients.

aspiration	217
diagnostic procedures	32
doctor visit	384
injections	794
lab tests	40
manual therapy	85
nerve block	206
pain management	563
preventive care	40
spinal procedures	274

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Leon Umphrey, MD.

**Gender**
Male	158
Female	190

**Ethnicity**
Non-Hispanic White	309
Black	0
Hispanic	18
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	190
From 75 to 84	97
85 and over	22
Less than 65	39

Conditions of Medicare patients treated by Dr. Gregory Leon Umphrey, MD in 2014

Hypertension	62
High Cholesterol	59
Stroke	5
Ischemic Heart Disease	28
Depression	24
Chronic Kidney Disease	18
Asthma	10
Osteoperosis	10
Atrial Fibrilation	10
Heart Failure	10
Chronic Obstructive Pulmonary Disease	11
Diabetes	24
Dementia	7
Cancer	10

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Gregory Leon Umphrey, MD treated as a neuromuscular medicine in Scottsdale, AZ during 2015 were injections, pain management, nerve block and spinal procedures.

Volume of procedures performed by Dr. Gregory Leon Umphrey, MD for Medicare patients.

aspiration	108
doctor visit	335
injections	714
lab tests	15
manual therapy	31
nerve block	357
pain management	485
preventive care	15
rehabilitation	14
spinal procedures	281

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Leon Umphrey, MD.

**Gender**
Male	246
Female	374

**Ethnicity**
Non-Hispanic White	548
Black	0
Hispanic	36
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	318
From 75 to 84	192
85 and over	48
Less than 65	62

Conditions of Medicare patients treated by Dr. Gregory Leon Umphrey, MD in 2015

Hypertension	65
High Cholesterol	61
Stroke	5
Ischemic Heart Disease	32
Depression	19
Chronic Kidney Disease	21
Asthma	13
Osteoperosis	13
Atrial Fibrilation	10
Heart Failure	12
Chronic Obstructive Pulmonary Disease	14
Diabetes	23
Dementia	5
Cancer	8

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Gregory Leon Umphrey, MD treated as a neuromuscular medicine in Scottsdale, AZ during 2016 were injections, nerve block, pain management and spinal procedures.

Volume of procedures performed by Dr. Gregory Leon Umphrey, MD for Medicare patients.

aspiration	158
doctor visit	251
injections	624
lab tests	21
nerve block	364
pain management	317
preventive care	21
spinal procedures	237

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Leon Umphrey, MD.

**Gender**
Male	96
Female	137

**Ethnicity**
Non-Hispanic White	204
Black	0
Hispanic	13
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	111
From 75 to 84	86
85 and over	14
Less than 65	22

Conditions of Medicare patients treated by Dr. Gregory Leon Umphrey, MD in 2016

Hypertension	69
High Cholesterol	58
Stroke	0
Ischemic Heart Disease	33
Depression	23
Chronic Kidney Disease	23
Asthma	19
Osteoperosis	12
Atrial Fibrilation	9
Heart Failure	15
Chronic Obstructive Pulmonary Disease	15
Diabetes	24
Dementia	6
Cancer	10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Gregory Leon Umphrey, MD treated as a neuromuscular medicine in Scottsdale, AZ during 2017 were injections, nerve block, pain management and spinal procedures.

Volume of procedures performed by Dr. Gregory Leon Umphrey, MD for Medicare patients.

aspiration	152
diagnostic procedures	28
doctor visit	235
injections	677
lab tests	14
nerve block	398
pain management	277
preventive care	14
spinal procedures	240

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Leon Umphrey, MD.

**Gender**
Male	93
Female	130

**Ethnicity**
Non-Hispanic White	196
Black	0
Hispanic	15
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	110
From 75 to 84	80
85 and over	12
Less than 65	21

Conditions of Medicare patients treated by Dr. Gregory Leon Umphrey, MD in 2017

Hypertension	64
High Cholesterol	54
Stroke	0
Ischemic Heart Disease	36
Depression	25
Chronic Kidney Disease	22
Asthma	9
Osteoperosis	10
Atrial Fibrilation	9
Heart Failure	13
Chronic Obstructive Pulmonary Disease	13
Diabetes	22
Dementia	5
Cancer	9

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Gregory Leon Umphrey, MD treated as a neuromuscular medicine in Scottsdale, AZ during 2018 were injections, nerve block, pain management and aspiration.

Volume of procedures performed by Dr. Gregory Leon Umphrey, MD for Medicare patients.

aspiration	194
diagnostic procedures	54
doctor visit	239
injections	608
lab tests	16
nerve block	330
pain management	231
preventive care	16
spinal procedures	194

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Leon Umphrey, MD.

**Gender**
Male	111
Female	146

**Ethnicity**
Non-Hispanic White	233
Black	0
Hispanic	13
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	123
From 75 to 84	98
85 and over	19
Less than 65	17

Conditions of Medicare patients treated by Dr. Gregory Leon Umphrey, MD in 2018

Hypertension	63
High Cholesterol	64
Stroke	4
Ischemic Heart Disease	36
Depression	25
Chronic Kidney Disease	31
Asthma	9
Osteoperosis	11
Atrial Fibrilation	9
Heart Failure	17
Chronic Obstructive Pulmonary Disease	14
Diabetes	25
Dementia	5
Cancer	12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Gregory Leon Umphrey, MD treated as a neuromuscular medicine in Scottsdale, AZ during 2019 were injections, nerve block, pain management and spinal procedures.

Volume of procedures performed by Dr. Gregory Leon Umphrey, MD for Medicare patients.

aspiration	122
diagnostic procedures	60
doctor visit	198
injections	537
lab tests	16
nerve block	344
pain management	243
preventive care	16
spinal procedures	214

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Leon Umphrey, MD.

**Gender**
Male	112
Female	134

**Ethnicity**
Non-Hispanic White	229
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	121
From 75 to 84	91
85 and over	19
Less than 65	15

Conditions of Medicare patients treated by Dr. Gregory Leon Umphrey, MD in 2019

Hypertension	63
High Cholesterol	64
Stroke	0
Ischemic Heart Disease	34
Depression	29
Chronic Kidney Disease	26
Asthma	10
Osteoperosis	15
Atrial Fibrilation	6
Heart Failure	15
Chronic Obstructive Pulmonary Disease	12
Diabetes	24
Dementia	6
Cancer	11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Gregory Leon Umphrey, MD treated as a neuromuscular medicine in Scottsdale, AZ during 2020 were injections, nerve block, pain management and spinal procedures.

Volume of procedures performed by Dr. Gregory Leon Umphrey, MD for Medicare patients.

aspiration	117
diagnostic procedures	26
doctor visit	152
injections	399
nerve block	228
pain management	162
spinal procedures	150

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Leon Umphrey, MD.

**Gender**
Male	81
Female	117

**Ethnicity**
Non-Hispanic White	179
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

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

Conditions of Medicare patients treated by Dr. Gregory Leon Umphrey, MD in 2020

Hypertension	69
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	36
Depression	25
Chronic Kidney Disease	24
Asthma	11
Osteoperosis	19
Atrial Fibrilation	6
Heart Failure	11
Chronic Obstructive Pulmonary Disease	8
Diabetes	23
Dementia	8
Cancer	9

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Gregory Leon Umphrey, MD treated as a neuromuscular medicine in Scottsdale, AZ during 2021 were injections, pain management, nerve block and spinal procedures.

Volume of procedures performed by Dr. Gregory Leon Umphrey, MD for Medicare patients.

aspiration	112
doctor visit	137
injections	337
minimally invasive procedures	17
nerve block	166
nerve procedures	17
pain management	181
spinal procedures	121

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Leon Umphrey, MD.

**Gender**
Male	71
Female	95

**Ethnicity**
Non-Hispanic White	149
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	77
From 75 to 84	71
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Gregory Leon Umphrey, MD in 2021

Hypertension	72
High Cholesterol	69
Stroke	0
Ischemic Heart Disease	35
Depression	24
Chronic Kidney Disease	33
Asthma	9
Osteoperosis	16
Atrial Fibrilation	7
Heart Failure	10
Chronic Obstructive Pulmonary Disease	8
Diabetes	19
Dementia	7
Cancer	14

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Gregory Leon Umphrey, MD treated as a neuromuscular medicine in Scottsdale, AZ during 2022 were injections, aspiration, pain management and nerve block.

Volume of procedures performed by Dr. Gregory Leon Umphrey, MD for Medicare patients.

aspiration	122
doctor visit	133
injections	305
nerve block	89
pain management	117
spinal procedures	59

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Leon Umphrey, MD.

**Gender**
Male	99
Female	125

**Ethnicity**
Non-Hispanic White	200
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	98
From 75 to 84	96
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Gregory Leon Umphrey, MD in 2022

Hypertension	70
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	28
Depression	20
Chronic Kidney Disease	24
Asthma	13
Osteoperosis	23
Atrial Fibrilation	17
Heart Failure	13
Chronic Obstructive Pulmonary Disease	13
Diabetes	17
Dementia	0
Cancer	23

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Gregory Leon Umphrey, MD treated as a neuromuscular medicine in Scottsdale, AZ during 2023 were injections, aspiration, pain management and spinal procedures.

Volume of procedures performed by Dr. Gregory Leon Umphrey, MD for Medicare patients.

aspiration	148
doctor visit	148
injections	245
pain management	97
spinal procedures	35

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Leon Umphrey, MD.

**Gender**
Male	127
Female	161

**Ethnicity**
Non-Hispanic White	256
Black	0
Hispanic	0
Asian	0
Other	15
Native American	0

**Age**
From 65 to 74	123
From 75 to 84	122
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Gregory Leon Umphrey, MD in 2023

Hypertension	68
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	27
Depression	17
Chronic Kidney Disease	20
Asthma	15
Osteoperosis	23
Atrial Fibrilation	22
Heart Failure	15
Chronic Obstructive Pulmonary Disease	14
Diabetes	19
Dementia	0
Cancer	26

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Gregory Leon Umphrey, MD treated as a neuromuscular medicine in Scottsdale, AZ during 2024 were injections, aspiration, pain management and nerve block.

Volume of procedures performed by Dr. Gregory Leon Umphrey, MD for Medicare patients.

aspiration	170
doctor visit	189
injections	284
nerve block	31
pain management	87
spinal procedures	28

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Leon Umphrey, MD.

**Gender**
Male	156
Female	169

**Ethnicity**
Non-Hispanic White	294
Black	0
Hispanic	0
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	150
From 75 to 84	133
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Gregory Leon Umphrey, MD in 2024

Hypertension	70
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	32
Depression	17
Chronic Kidney Disease	20
Asthma	14
Osteoperosis	20
Atrial Fibrilation	20
Heart Failure	14
Chronic Obstructive Pulmonary Disease	12
Diabetes	22
Dementia	0
Cancer	23

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Gregory Leon Umphrey, MD for Medicare patients.

The highest averages for the top procedures that Dr. Gregory Leon Umphrey, MD treated as a neuromuscular medicine in Scottsdale, AZ were injections, pain management, nerve block and spinal procedures.

aspiration	152
diagnostic procedures	77
doctor visit	235
injections	523
lab tests	23
manual therapy	58
minimally invasive procedures	17
nerve block	224
nerve procedures	17
pain management	282
preventive care	23
rehabilitation	14
spinal procedures	174

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Gregory Leon Umphrey, MD.

**Gender**
Female	149
Male	113

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	234
Hispanic	8
Native American / Alaskan Native	0
Other	2

**Age**
85 and over	13
75 to 84	93
Less than 65	17
65 to 74	128

Average of Total of Conditions of Medicare patients treated by Dr. Gregory Leon Umphrey, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Gregory Leon Umphrey, MD treated were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	61
High Cholesterol	59
Stroke	3
Ischemic Heart Disease	30
Depression	20
Chronic Kidney Disease	21
Asthma	10
Osteoporosis	14
Heart Failure	11
Chronic Obstructive Pulmonary Disease	11
Diabetes	20
Atrial Fibrillation	10
Cancer	12
Dementia	4

Education & Training

He has a state license in Arizona.

Licensed In: Arizona

Ratings & Reviews

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General Payments

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

**Payments by Company**
Lundbeck LLC	$149 VYEPTI $149
Nevro Corp.	$146 Senza Spinal Cord Stimulation System $146
Canon Medical Systems USA, Inc.	$67 DIAGNOSTIC ULTRASOUND SYSTEM $46	GENERAL DEVICE(S) $21
Averitas Pharma Inc.	$23 QUTENZA $23
HydroCision, Inc.	$19 TenJet $19
Other	$49 Allograft $18	MONOVISC $16	NON-PRODUCT $14

**Types of Payments**
Food and Beverage	$438
Education	$14

Biography

Dr. Gregory Umphrey is a specialist in physiatry (physical medicine & rehabilitation) and neuromuscular medicine. He works in Phoenix, AZ and Scottsdale, AZ. Dr. Umphrey obtained a license to practice in Arizona.