Procedure Volume Patient Data Patient Conditions Reviews General Payments Back to Top

Home > FL Providers > Spine Surgeons

Dr. Gregory C. Keller, MD

(No ratings)

Specializes in: Spine Surgery and Orthopedics/Orthopedic Surgery

Vanderbilt University School of Medicine

1325 San Marco Boulevard Suite 200
Jacksonville, FL 32207

(904) 346-3465

Dr. Gregory C. Keller, MD is a spine surgeon in Jacksonville, FL specializing in spine surgery and orthopedics/orthopedic surgery. He graduated from Vanderbilt University School of Medicine. Dr. Gregory C. Keller, MD is affiliated with Baptist Medical Center Jacksonville, Baptist Health, Baptist Medical Center South, Wolfson Children's Hospital, Baptist Medical Center Beaches and Baptist Medical Center Nassau.

Office Locations

Wolfson Children's Hospital

1325 San Marco Boulevard Suite 200
Jacksonville, FL 32207

(904) 346-3465

(904) 391-6828

open_in_new

Noteworthy Medicare Patient Procedures Performed by Dr. Gregory C. Keller, MD in 2023

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

Top 5%

By Volume:

spinal procedures

spine X-ray

By Affordability:

joint X-ray

knee X-ray

In 2023, among providers in related specialties within Florida, Dr. Gregory C. Keller, MD performed more spinal procedures, and spine X-ray procedures for Medicare patients than 95% of them and he also had a list price for joint X-ray, and knee X-ray 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 10%

By Affordability:

neck X-ray

spine imaging

spine X-ray

In 2023, Dr. Gregory C. Keller, MD had a list price for neck X-ray, spine imaging, and spine X-ray that was lower than the list prices billed to Medicare by 90% of providers in related specialties within Florida. 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 Volume:

nerve block

nerve block for pain

By Affordability:

posterior spinal fusion

In 2012, among providers in related specialties within Florida, Dr. Gregory C. Keller, MD performed more nerve block, and nerve block for pain procedures for Medicare patients than 75% of them and he also had a list price for posterior spinal fusion that was lower than the list prices billed to Medicare by 75% 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.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Gregory C. Keller, MD treated as a spine surgeon in Jacksonville, FL during 2012 were spinal procedures, X-rays, injections and aspiration.

Volume of procedures performed by Dr. Gregory C. Keller, MD for Medicare patients.

arthrodesis (bone fusion surgery)	25
aspiration	103
decompression surgery	44
doctor visit	987
hip imaging	31
hospital care	24
image guided procedures	42
injections	200
inpatient care	24
minimally invasive procedures	42
musculoskeletal imaging	83
nerve block	55
nerve procedures	44
pain management	97
spinal procedures	885
X-rays	781

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Gregory C. Keller, MD treated as a spine surgeon in Jacksonville, FL during 2013 were spinal procedures, X-rays, injections and musculoskeletal imaging.

Volume of procedures performed by Dr. Gregory C. Keller, MD for Medicare patients.

arthrodesis (bone fusion surgery)	11
aspiration	89
decompression surgery	41
doctor visit	990
hip imaging	78
hospital care	24
image guided procedures	36
injections	165
inpatient care	24
joint surgery	12
lower extremity surgery	12
minimally invasive procedures	36
musculoskeletal imaging	137
nerve block	40
nerve procedures	41
pain management	76
reconstructive surgery	12
rehabilitation	27
spinal procedures	889
X-rays	871

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory C. Keller, MD.

**Gender**
Male	199
Female	357

**Ethnicity**
Non-Hispanic White	501
Black	39
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	264
From 75 to 84	167
85 and over	63
Less than 65	62

Conditions of Medicare patients treated by Dr. Gregory C. Keller, MD in 2013

Hypertension	75
High Cholesterol	65
Stroke	6
Ischemic Heart Disease	40
Depression	25
Chronic Kidney Disease	23
Asthma	10
Osteoperosis	10
Atrial Fibrilation	13
Heart Failure	17
Chronic Obstructive Pulmonary Disease	15
Diabetes	31
Dementia	10
Cancer	12

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Gregory C. Keller, MD treated as a spine surgeon in Jacksonville, FL during 2014 were spinal procedures, X-rays, injections and musculoskeletal imaging.

Volume of procedures performed by Dr. Gregory C. Keller, MD for Medicare patients.

arthrodesis (bone fusion surgery)	21
aspiration	88
decompression surgery	35
doctor visit	897
hip imaging	46
hospital care	28
image guided procedures	52
injections	164
inpatient care	28
minimally invasive procedures	52
musculoskeletal imaging	122
nerve block	24
nerve procedures	35
pain management	76
pelvic imaging	16
spinal procedures	732
X-rays	712

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory C. Keller, MD.

**Gender**
Male	216
Female	347

**Ethnicity**
Non-Hispanic White	497
Black	48
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	251
From 75 to 84	176
85 and over	62
Less than 65	74

Conditions of Medicare patients treated by Dr. Gregory C. Keller, MD in 2014

Hypertension	75
High Cholesterol	63
Stroke	6
Ischemic Heart Disease	42
Depression	27
Chronic Kidney Disease	28
Asthma	13
Osteoperosis	13
Atrial Fibrilation	17
Heart Failure	18
Chronic Obstructive Pulmonary Disease	21
Diabetes	33
Dementia	11
Cancer	12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Gregory C. Keller, MD treated as a spine surgeon in Jacksonville, FL during 2015 were spinal procedures, X-rays, injections and musculoskeletal imaging.

Volume of procedures performed by Dr. Gregory C. Keller, MD for Medicare patients.

arthrodesis (bone fusion surgery)	33
aspiration	66
decompression surgery	30
doctor visit	899
hip imaging	45
image guided procedures	19
injections	101
minimally invasive procedures	19
musculoskeletal imaging	86
neck surgery	14
nerve block	16
nerve procedures	30
pain management	35
pelvic imaging	14
spinal procedures	739
X-rays	712

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory C. Keller, MD.

**Gender**
Male	428
Female	728

**Ethnicity**
Non-Hispanic White	1034
Black	82
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	532
From 75 to 84	372
85 and over	108
Less than 65	144

Conditions of Medicare patients treated by Dr. Gregory C. Keller, MD in 2015

Hypertension	75
High Cholesterol	66
Stroke	7
Ischemic Heart Disease	43
Depression	27
Chronic Kidney Disease	27
Asthma	17
Osteoperosis	13
Atrial Fibrilation	13
Heart Failure	19
Chronic Obstructive Pulmonary Disease	18
Diabetes	33
Dementia	9
Cancer	16

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Gregory C. Keller, MD treated as a spine surgeon in Jacksonville, FL during 2016 were spinal procedures, X-rays, injections and aspiration.

Volume of procedures performed by Dr. Gregory C. Keller, MD for Medicare patients.

arthrodesis (bone fusion surgery)	24
aspiration	36
decompression surgery	19
doctor visit	892
image guided procedures	11
injections	47
minimally invasive procedures	11
musculoskeletal imaging	17
nerve procedures	19
pain management	11
spinal procedures	625
X-rays	554

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory C. Keller, MD.

**Gender**
Male	229
Female	345

**Ethnicity**
Non-Hispanic White	494
Black	54
Hispanic	0
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	282
From 75 to 84	172
85 and over	54
Less than 65	66

Conditions of Medicare patients treated by Dr. Gregory C. Keller, MD in 2016

Hypertension	75
High Cholesterol	61
Stroke	5
Ischemic Heart Disease	40
Depression	25
Chronic Kidney Disease	29
Asthma	18
Osteoperosis	13
Atrial Fibrilation	12
Heart Failure	15
Chronic Obstructive Pulmonary Disease	15
Diabetes	33
Dementia	9
Cancer	13

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Gregory C. Keller, MD treated as a spine surgeon in Jacksonville, FL during 2017 were spinal procedures, X-rays, aspiration and injections.

Volume of procedures performed by Dr. Gregory C. Keller, MD for Medicare patients.

arthrodesis (bone fusion surgery)	19
aspiration	45
decompression surgery	16
doctor visit	868
injections	45
musculoskeletal imaging	34
nerve procedures	16
spinal procedures	603
X-rays	573

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory C. Keller, MD.

**Gender**
Male	188
Female	298

**Ethnicity**
Non-Hispanic White	427
Black	40
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	229
From 75 to 84	164
85 and over	44
Less than 65	49

Conditions of Medicare patients treated by Dr. Gregory C. Keller, MD in 2017

Hypertension	75
High Cholesterol	56
Stroke	6
Ischemic Heart Disease	41
Depression	27
Chronic Kidney Disease	27
Asthma	12
Osteoperosis	11
Atrial Fibrilation	13
Heart Failure	14
Chronic Obstructive Pulmonary Disease	14
Diabetes	30
Dementia	9
Cancer	14

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Gregory C. Keller, MD treated as a spine surgeon in Jacksonville, FL during 2018 were spinal procedures, X-rays, injections and pain management.

Volume of procedures performed by Dr. Gregory C. Keller, MD for Medicare patients.

arthrodesis (bone fusion surgery)	22
aspiration	35
doctor visit	861
image guided procedures	30
implant removal	14
injections	78
minimally invasive procedures	30
musculoskeletal imaging	23
nerve block	13
pain management	43
spinal procedures	649
X-rays	557

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory C. Keller, MD.

**Gender**
Male	214
Female	302

**Ethnicity**
Non-Hispanic White	460
Black	37
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	248
From 75 to 84	161
85 and over	59
Less than 65	48

Conditions of Medicare patients treated by Dr. Gregory C. Keller, MD in 2018

Hypertension	74
High Cholesterol	66
Stroke	6
Ischemic Heart Disease	47
Depression	28
Chronic Kidney Disease	34
Asthma	9
Osteoperosis	13
Atrial Fibrilation	14
Heart Failure	17
Chronic Obstructive Pulmonary Disease	17
Diabetes	31
Dementia	11
Cancer	14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Gregory C. Keller, MD treated as a spine surgeon in Jacksonville, FL during 2019 were spinal procedures, X-rays, injections and pain management.

Volume of procedures performed by Dr. Gregory C. Keller, MD for Medicare patients.

arthrodesis (bone fusion surgery)	23
aspiration	28
decompression surgery	19
doctor visit	887
image guided procedures	16
injections	76
minimally invasive procedures	16
musculoskeletal imaging	25
nerve block	32
nerve procedures	19
pain management	48
spinal procedures	635
X-rays	543

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory C. Keller, MD.

**Gender**
Male	206
Female	294

**Ethnicity**
Non-Hispanic White	443
Black	35
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	244
From 75 to 84	163
85 and over	52
Less than 65	41

Conditions of Medicare patients treated by Dr. Gregory C. Keller, MD in 2019

Hypertension	75
High Cholesterol	65
Stroke	5
Ischemic Heart Disease	42
Depression	26
Chronic Kidney Disease	34
Asthma	10
Osteoperosis	13
Atrial Fibrilation	13
Heart Failure	15
Chronic Obstructive Pulmonary Disease	16
Diabetes	30
Dementia	10
Cancer	12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Gregory C. Keller, MD treated as a spine surgeon in Jacksonville, FL during 2020 were spinal procedures, X-rays, injections and nerve block.

Volume of procedures performed by Dr. Gregory C. Keller, MD for Medicare patients.

arthrodesis (bone fusion surgery)	15
aspiration	20
decompression surgery	19
doctor visit	586
injections	53
nerve block	33
nerve procedures	19
pain management	33
spinal procedures	393
X-rays	310

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory C. Keller, MD.

**Gender**
Male	155
Female	232

**Ethnicity**
Non-Hispanic White	333
Black	31
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	203
From 75 to 84	134
85 and over	30
Less than 65	20

Conditions of Medicare patients treated by Dr. Gregory C. Keller, MD in 2020

Hypertension	75
High Cholesterol	72
Stroke	4
Ischemic Heart Disease	41
Depression	30
Chronic Kidney Disease	34
Asthma	10
Osteoperosis	12
Atrial Fibrilation	12
Heart Failure	17
Chronic Obstructive Pulmonary Disease	13
Diabetes	32
Dementia	9
Cancer	13

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Gregory C. Keller, MD treated as a spine surgeon in Jacksonville, FL during 2021 were spinal procedures, X-rays, injections and nerve block.

Volume of procedures performed by Dr. Gregory C. Keller, MD for Medicare patients.

arthrodesis (bone fusion surgery)	11
aspiration	33
decompression surgery	22
doctor visit	674
injections	99
musculoskeletal imaging	36
nerve block	66
nerve procedures	22
pain management	66
spinal procedures	442
X-rays	357

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory C. Keller, MD.

**Gender**
Male	196
Female	237

**Ethnicity**
Non-Hispanic White	373
Black	37
Hispanic	0
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	196
From 75 to 84	162
85 and over	44
Less than 65	31

Conditions of Medicare patients treated by Dr. Gregory C. Keller, MD in 2021

Hypertension	75
High Cholesterol	70
Stroke	5
Ischemic Heart Disease	42
Depression	27
Chronic Kidney Disease	36
Asthma	10
Osteoperosis	13
Atrial Fibrilation	16
Heart Failure	16
Chronic Obstructive Pulmonary Disease	14
Diabetes	31
Dementia	9
Cancer	13

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Gregory C. Keller, MD treated as a spine surgeon in Jacksonville, FL during 2022 were spinal procedures, X-rays, injections and pain management.

Volume of procedures performed by Dr. Gregory C. Keller, MD for Medicare patients.

arthrodesis (bone fusion surgery)	17
aspiration	38
doctor visit	689
injections	111
musculoskeletal imaging	37
nerve block	61
pain management	73
spinal procedures	460
X-rays	391

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory C. Keller, MD.

**Gender**
Male	168
Female	223

**Ethnicity**
Non-Hispanic White	341
Black	29
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	176
From 75 to 84	159
85 and over	31
Less than 65	25

Conditions of Medicare patients treated by Dr. Gregory C. Keller, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	31
Depression	30
Chronic Kidney Disease	30
Asthma	16
Osteoperosis	18
Atrial Fibrilation	19
Heart Failure	15
Chronic Obstructive Pulmonary Disease	19
Diabetes	32
Dementia	6
Cancer	17

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Gregory C. Keller, MD treated as a spine surgeon in Jacksonville, FL during 2023 were spinal procedures, X-rays, injections and nerve block.

Volume of procedures performed by Dr. Gregory C. Keller, MD for Medicare patients.

arthrodesis (bone fusion surgery)	26
aspiration	54
decompression surgery	11
doctor visit	726
injections	115
musculoskeletal imaging	34
nerve block	61
nerve procedures	11
pain management	61
spinal procedures	506
X-rays	409

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory C. Keller, MD.

**Gender**
Male	187
Female	262

**Ethnicity**
Non-Hispanic White	385
Black	35
Hispanic	13
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	205
From 75 to 84	179
85 and over	46
Less than 65	19

Conditions of Medicare patients treated by Dr. Gregory C. Keller, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	36
Depression	30
Chronic Kidney Disease	26
Asthma	16
Osteoperosis	23
Atrial Fibrilation	18
Heart Failure	16
Chronic Obstructive Pulmonary Disease	21
Diabetes	34
Dementia	6
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Gregory C. Keller, MD for Medicare patients.

The highest averages for the top procedures that Dr. Gregory C. Keller, MD treated as a spine surgeon in Jacksonville, FL were spinal procedures, X-rays, injections and musculoskeletal imaging.

arthrodesis (bone fusion surgery)	20
aspiration	52
decompression surgery	25
doctor visit	829
hip imaging	50
hospital care	25
image guided procedures	29
implant removal	14
injections	104
inpatient care	25
joint surgery	12
lower extremity surgery	12
minimally invasive procedures	29
musculoskeletal imaging	57
neck surgery	14
nerve block	40
nerve procedures	25
pain management	56
pelvic imaging	15
reconstructive surgery	12
rehabilitation	27
spinal procedures	629
X-rays	564

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Gregory C. Keller, MD.

**Gender**
Male	198
Female	302

**Ethnicity**
Black / African American	38
Asian / Pacific Islander	0
Non-Hispanic White	440
Hispanic	1
Native American / Alaskan Native	0
Other	1

**Age**
75 to 84	167
85 and over	49
Less than 65	48
65 to 74	235

Average of Total of Conditions of Medicare patients treated by Dr. Gregory C. Keller, MD From 2012 - 2023

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

Hypertension	68
High Cholesterol	61
Stroke	6
Ischemic Heart Disease	37
Depression	25
Chronic Kidney Disease	27
Asthma	11
Osteoporosis	12
Heart Failure	14
Chronic Obstructive Pulmonary Disease	15
Diabetes	29
Atrial Fibrillation	13
Cancer	12
Dementia	8

Education & Training

Dr. Gregory C. Keller, MD graduated from Vanderbilt University School of Medicine. He completed residency at University of Florida Health Science Center and Affiliated Hospitals. He is certified by the American Board of Orthopaedic Surgery (Orthopaedic Surgery) and has a state license in Florida.

Medical School: Vanderbilt University School of Medicine

Residency: University of Florida Health Science Center and Affiliated Hospitals

Board Certification: American Board of Orthopaedic Surgery (Orthopaedic Surgery)

Licensed In: Florida

Affiliations & Hospitals

Dr. Gregory C. Keller, MD is associated with these hospitals and organizations:

Baptist Medical Center Jacksonville

Baptist Health

Baptist Medical Center South

Wolfson Children's Hospital

Baptist Medical Center Beaches

Baptist Medical Center Nassau

Ratings & Reviews

Dr. Gregory C. Keller, MD does not have any reviews yet, be the first to leave a review of Dr. Gregory C. Keller, MD here: Leave a Review

(No ratings)

Leave a Review

General Payments

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

**Payments by Company**
Medtronic USA, Inc.	$2,403 VERTEX $650	CLYDESDALE $346	Spinal Cord Neurostimulation - Neuro $321	MazorX Renaissance $191	nanoLOCK-L $161	Other $732
Medtronic Sofamor Danek USA, Inc.	$1,170 Thoracolumbar - TL Therapies $799	Spinal Surgery $134	Pain Therapies $117	Interventional Therapies $96	PRESTIGE $15	Other $10
NUVASIVE, INC.	$1,143 Thoracolumbar $1,143
SI-Bone, Inc.	$1,139 iFuse Implant $920	$219
The Institute of Musculoskeletal Science and Education	$896 $896
Other	$4,159 Spinal Implant $552	ORTHO - HIPS $519	FORTEO $338	MAZOR X SYSTEM $173	XIA $147	Other $2,430

**Types of Payments**
Food and Beverage	$6,248
Travel and Lodging	$3,475
Consulting Fee	$896
Education	$182
Gift	$109

Research Payments

Dr. Gregory C. Keller, MD has received 16 research payments totaling $64,147.

Biography

Dr. Gregory Keller practices spine surgery and orthopedics/orthopedic surgery in Jacksonville, FL. He graduated from Vanderbilt University School of Medicine. Dr. Keller's training includes a residency program at a hospital affiliated with the University of Florida Health Science Center. He is affiliated with Baptist Medical Center Beaches, Baptist Medical Center Jacksonville, and Baptist Medical Center South.