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Dr. Thomas F. Gregory, MD

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Specializes in: Medical Oncology, Adult Oncology and Hematology (Blood Disorders)

University of Texas Medical Branch School of Medicine (1993)

501 Saunders Avenue
Tyler, TX 75702

(903) 579-9800

Dr. Thomas F. Gregory, MD is a medical oncologist in Tyler, TX specializing in medical oncology, adult oncology and hematology (blood disorders). He graduated from University of Texas Medical Branch School of Medicine in 1993 and has 33 years of experience. Dr. Thomas F. Gregory, MD is affiliated with CHRISTUS Health and Texas Oncology.

Office Locations

CHRISTUS Health

501 Saunders Avenue
Tyler, TX 75702

(903) 579-9800

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Noteworthy Medicare Patient Procedures Performed by Dr. Thomas F. Gregory, MD in 2023

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

Top 5%

By Affordability:

blood differential tests

blood smear

blood urea nitrogen test

conventional external beam radiation therapy

reticulocyte count

therapeutic phlebotomy

white blood cell differential

In 2023, Dr. Thomas F. Gregory, MD had a list price for blood differential tests, blood smear, blood urea nitrogen (BUN) test, conventional external beam radiation therapy, reticulocyte count (immature red blood cell count), therapeutic phlebotomy, and white blood cell (WBC) differential that was lower than the list prices billed to Medicare by 95% of providers in related specialties within Texas. 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 Volume:

biological response modifier therapy

intravenous chemotherapy

intravenous infusion

By Affordability:

carcinoembryonic antigen test

external beam radiation therapy

iron tests

kidney function tests

lactate dehydrogenase test

magnesium test

prostate-specific antigen test

radiation therapy

total PSA test

In 2023, among providers in related specialties within Texas, Dr. Thomas F. Gregory, MD performed more biological response modifier (BRM) therapy, intravenous (IV) chemotherapy, and intravenous (IV) infusion procedures for Medicare patients than 90% of them and he also had a list price for carcinoembryonic antigen (CEA) test, external beam radiation therapy (EBRT), iron tests, kidney function tests, lactate dehydrogenase (LDH) test, magnesium test, prostate-specific antigen (PSA) test, radiation therapy, and total PSA test that was lower than the list prices billed to Medicare by 90% 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 25%

By Volume:

blood draw

blood tests

complete blood count

phlebotomy for lab tests

white blood cell differential

By Affordability:

antigen tests

antineoplastic hormone therapy

inpatient hospital care

In 2012, among providers in related specialties within Texas, Dr. Thomas F. Gregory, MD performed more blood draw, blood tests, complete blood count (CBC), phlebotomy for lab tests, and white blood cell (WBC) differential procedures for Medicare patients than 75% of them and he also had a list price for antigen tests, antineoplastic hormone therapy, blood count tests, chest CT scan, complete blood count (CBC), hormone therapy, hospital care, inpatient care, inpatient hospital care (for patient admitted to hospital), liver function tests (LFTs), port flush, thoracic (chest) imaging, and vitamin B12 test 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. Thomas F. Gregory, MD treated as a medical oncologist in Tyler, TX during 2012 were lab tests, blood draw, inpatient care and hospital care.

Volume of procedures performed by Dr. Thomas F. Gregory, MD for Medicare patients.

abdominal imaging	72
aspiration	16
biological response modifier (BRM) therapy	487
blood draw	2189
bone marrow tests	33
chemotherapy	487
CT scan	246
diagnostic procedures	33
doctor visit	1576
hospital care	627
inpatient care	627
lab tests	5189
minimally invasive procedures	559
neck imaging	17
pelvic imaging	49
port flush	58
thoracic (chest) imaging	171
X-rays	14

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Thomas F. Gregory, MD treated as a medical oncologist in Tyler, TX during 2013 were lab tests, blood draw, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. Thomas F. Gregory, MD for Medicare patients.

abdominal imaging	114
biological response modifier (BRM) therapy	642
blood draw	2368
chemotherapy	642
CT scan	317
doctor visit	1846
hospital care	569
inpatient care	569
lab tests	6153
minimally invasive procedures	739
neck imaging	22
pelvic imaging	94
port flush	70
preventive care	35
thoracic (chest) imaging	181
vaccines	23

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas F. Gregory, MD.

**Gender**
Male	250
Female	271

**Ethnicity**
Non-Hispanic White	449
Black	57
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	253
From 75 to 84	157
85 and over	58
Less than 65	53

Conditions of Medicare patients treated by Dr. Thomas F. Gregory, MD in 2013

Hypertension	74
High Cholesterol	52
Stroke	3
Ischemic Heart Disease	42
Depression	25
Chronic Kidney Disease	35
Asthma	7
Osteoperosis	8
Atrial Fibrilation	14
Heart Failure	24
Chronic Obstructive Pulmonary Disease	25
Diabetes	34
Dementia	13
Cancer	48

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Thomas F. Gregory, MD treated as a medical oncologist in Tyler, TX during 2014 were lab tests, blood draw, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. Thomas F. Gregory, MD for Medicare patients.

abdominal imaging	104
biological response modifier (BRM) therapy	592
blood draw	2428
chemotherapy	592
CT scan	303
doctor visit	1780
hospital care	467
inpatient care	467
lab tests	5956
minimally invasive procedures	757
neck imaging	20
pelvic imaging	104
port flush	25
preventive care	22
thoracic (chest) imaging	179
vaccines	22

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas F. Gregory, MD.

**Gender**
Male	242
Female	226

**Ethnicity**
Non-Hispanic White	411
Black	42
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	219
From 75 to 84	154
85 and over	52
Less than 65	43

Conditions of Medicare patients treated by Dr. Thomas F. Gregory, MD in 2014

Hypertension	75
High Cholesterol	57
Stroke	7
Ischemic Heart Disease	42
Depression	22
Chronic Kidney Disease	30
Asthma	6
Osteoperosis	7
Atrial Fibrilation	17
Heart Failure	26
Chronic Obstructive Pulmonary Disease	24
Diabetes	34
Dementia	10
Cancer	44

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Thomas F. Gregory, MD treated as a medical oncologist in Tyler, TX during 2015 were lab tests, blood draw, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. Thomas F. Gregory, MD for Medicare patients.

abdominal imaging	112
biological response modifier (BRM) therapy	518
blood draw	2304
chemotherapy	518
CT scan	284
doctor visit	1779
hospital care	376
inpatient care	376
lab tests	6416
minimally invasive procedures	655
pelvic imaging	112
preventive care	14
thoracic (chest) imaging	172
thyroid function tests	31
vaccines	14

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas F. Gregory, MD.

**Gender**
Male	540
Female	660

**Ethnicity**
Non-Hispanic White	1056
Black	114
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	546
From 75 to 84	386
85 and over	136
Less than 65	132

Conditions of Medicare patients treated by Dr. Thomas F. Gregory, MD in 2015

Hypertension	75
High Cholesterol	57
Stroke	9
Ischemic Heart Disease	43
Depression	25
Chronic Kidney Disease	38
Asthma	14
Osteoperosis	7
Atrial Fibrilation	14
Heart Failure	27
Chronic Obstructive Pulmonary Disease	24
Diabetes	35
Dementia	10
Cancer	44

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Thomas F. Gregory, MD treated as a medical oncologist in Tyler, TX during 2016 were lab tests, blood draw, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. Thomas F. Gregory, MD for Medicare patients.

abdominal imaging	82
biological response modifier (BRM) therapy	375
blood draw	2112
chemotherapy	375
CT scan	239
doctor visit	1628
hospital care	363
inpatient care	363
lab tests	5813
minimally invasive procedures	575
neck imaging	13
pelvic imaging	82
port flush	86
radiation therapy	51
thoracic (chest) imaging	144
thyroid function tests	81

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas F. Gregory, MD.

**Gender**
Male	351
Female	496

**Ethnicity**
Non-Hispanic White	724
Black	93
Hispanic	18
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	388
From 75 to 84	307
85 and over	73
Less than 65	79

Conditions of Medicare patients treated by Dr. Thomas F. Gregory, MD in 2016

Hypertension	75
High Cholesterol	60
Stroke	6
Ischemic Heart Disease	39
Depression	22
Chronic Kidney Disease	34
Asthma	21
Osteoperosis	9
Atrial Fibrilation	14
Heart Failure	21
Chronic Obstructive Pulmonary Disease	21
Diabetes	32
Dementia	9
Cancer	49

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Thomas F. Gregory, MD treated as a medical oncologist in Tyler, TX during 2017 were lab tests, blood draw, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. Thomas F. Gregory, MD for Medicare patients.

abdominal imaging	113
biological response modifier (BRM) therapy	445
blood draw	2187
chemotherapy	445
CT scan	257
doctor visit	1552
hormone therapy	24
hospital care	213
inpatient care	213
lab tests	5814
minimally invasive procedures	641
pelvic imaging	113
port flush	45
preventive care	17
radiation therapy	42
thoracic (chest) imaging	144
thyroid function tests	89
vaccines	17

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas F. Gregory, MD.

**Gender**
Male	396
Female	551

**Ethnicity**
Non-Hispanic White	819
Black	100
Hispanic	15
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	443
From 75 to 84	331
85 and over	89
Less than 65	84

Conditions of Medicare patients treated by Dr. Thomas F. Gregory, MD in 2017

Hypertension	73
High Cholesterol	48
Stroke	6
Ischemic Heart Disease	34
Depression	23
Chronic Kidney Disease	37
Asthma	6
Osteoperosis	10
Atrial Fibrilation	12
Heart Failure	21
Chronic Obstructive Pulmonary Disease	21
Diabetes	32
Dementia	9
Cancer	49

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Thomas F. Gregory, MD treated as a medical oncologist in Tyler, TX during 2018 were lab tests, blood draw, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. Thomas F. Gregory, MD for Medicare patients.

abdominal imaging	101
biological response modifier (BRM) therapy	430
blood draw	1941
chemotherapy	430
CT scan	233
doctor visit	1188
hospital care	145
inpatient care	145
lab tests	5298
minimally invasive procedures	589
pelvic imaging	101
port flush	50
radiation therapy	33
thoracic (chest) imaging	132
thyroid function tests	162

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas F. Gregory, MD.

**Gender**
Male	391
Female	527

**Ethnicity**
Non-Hispanic White	812
Black	76
Hispanic	18
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	424
From 75 to 84	327
85 and over	99
Less than 65	68

Conditions of Medicare patients treated by Dr. Thomas F. Gregory, MD in 2018

Hypertension	70
High Cholesterol	56
Stroke	7
Ischemic Heart Disease	34
Depression	23
Chronic Kidney Disease	35
Asthma	5
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	22
Chronic Obstructive Pulmonary Disease	22
Diabetes	30
Dementia	9
Cancer	50

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Thomas F. Gregory, MD treated as a medical oncologist in Tyler, TX during 2019 were lab tests, blood draw, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. Thomas F. Gregory, MD for Medicare patients.

abdominal imaging	82
biological response modifier (BRM) therapy	550
blood draw	1658
chemotherapy	550
CT scan	221
doctor visit	1173
hormone therapy	32
hospital care	153
inpatient care	153
lab tests	4707
minimally invasive procedures	747
neck imaging	14
pelvic imaging	82
port flush	65
radiation therapy	74
thoracic (chest) imaging	125
thyroid function tests	331

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas F. Gregory, MD.

**Gender**
Male	464
Female	577

**Ethnicity**
Non-Hispanic White	922
Black	81
Hispanic	23
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	465
From 75 to 84	390
85 and over	108
Less than 65	78

Conditions of Medicare patients treated by Dr. Thomas F. Gregory, MD in 2019

Hypertension	73
High Cholesterol	58
Stroke	6
Ischemic Heart Disease	36
Depression	24
Chronic Kidney Disease	42
Asthma	6
Osteoperosis	11
Atrial Fibrilation	14
Heart Failure	22
Chronic Obstructive Pulmonary Disease	23
Diabetes	30
Dementia	10
Cancer	49

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Thomas F. Gregory, MD treated as a medical oncologist in Tyler, TX during 2020 were lab tests, blood draw, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. Thomas F. Gregory, MD for Medicare patients.

abdominal imaging	69
biological response modifier (BRM) therapy	505
blood draw	1357
chemotherapy	505
CT scan	158
doctor visit	973
hormone therapy	23
hospital care	99
inpatient care	99
lab tests	4133
minimally invasive procedures	679
pelvic imaging	69
port flush	66
radiation therapy	46
thoracic (chest) imaging	89
thyroid function tests	406

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas F. Gregory, MD.

**Gender**
Male	402
Female	534

**Ethnicity**
Non-Hispanic White	840
Black	65
Hispanic	18
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	430
From 75 to 84	365
85 and over	94
Less than 65	47

Conditions of Medicare patients treated by Dr. Thomas F. Gregory, MD in 2020

Hypertension	73
High Cholesterol	58
Stroke	5
Ischemic Heart Disease	36
Depression	26
Chronic Kidney Disease	45
Asthma	7
Osteoperosis	11
Atrial Fibrilation	15
Heart Failure	21
Chronic Obstructive Pulmonary Disease	21
Diabetes	31
Dementia	10
Cancer	52

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Thomas F. Gregory, MD treated as a medical oncologist in Tyler, TX during 2021 were lab tests, blood draw, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. Thomas F. Gregory, MD for Medicare patients.

abdominal imaging	68
biological response modifier (BRM) therapy	522
blood draw	1299
chemotherapy	522
CT scan	189
doctor visit	973
hormone therapy	38
hospital care	100
inpatient care	100
lab tests	3393
minimally invasive procedures	712
neck imaging	11
pelvic imaging	68
port flush	62
radiation therapy	115
thoracic (chest) imaging	110
thyroid function tests	27

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas F. Gregory, MD.

**Gender**
Male	426
Female	567

**Ethnicity**
Non-Hispanic White	895
Black	67
Hispanic	19
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	442
From 75 to 84	401
85 and over	103
Less than 65	47

Conditions of Medicare patients treated by Dr. Thomas F. Gregory, MD in 2021

Hypertension	73
High Cholesterol	61
Stroke	5
Ischemic Heart Disease	33
Depression	26
Chronic Kidney Disease	41
Asthma	6
Osteoperosis	11
Atrial Fibrilation	14
Heart Failure	21
Chronic Obstructive Pulmonary Disease	21
Diabetes	30
Dementia	11
Cancer	50

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Thomas F. Gregory, MD treated as a medical oncologist in Tyler, TX during 2022 were lab tests, blood draw, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. Thomas F. Gregory, MD for Medicare patients.

abdominal imaging	53
biological response modifier (BRM) therapy	480
blood draw	1302
chemotherapy	480
CT scan	158
doctor visit	987
hormone therapy	32
hospital care	117
inpatient care	117
lab tests	3596
minimally invasive procedures	618
pelvic imaging	53
port flush	46
radiation therapy	89
thoracic (chest) imaging	105

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas F. Gregory, MD.

**Gender**
Male	427
Female	553

**Ethnicity**
Non-Hispanic White	859
Black	83
Hispanic	20
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	426
From 75 to 84	418
85 and over	96
Less than 65	40

Conditions of Medicare patients treated by Dr. Thomas F. Gregory, MD in 2022

Hypertension	75
High Cholesterol	69
Stroke	7
Ischemic Heart Disease	33
Depression	24
Chronic Kidney Disease	33
Asthma	10
Osteoperosis	16
Atrial Fibrilation	22
Heart Failure	19
Chronic Obstructive Pulmonary Disease	22
Diabetes	28
Dementia	6
Cancer	55

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Thomas F. Gregory, MD for Medicare patients.

The highest averages for the top procedures that Dr. Thomas F. Gregory, MD treated as a medical oncologist in Tyler, TX were lab tests, blood draw, minimally invasive procedures and chemotherapy.

abdominal imaging	88
aspiration	16
biological response modifier (BRM) therapy	504
blood draw	1922
bone marrow tests	33
chemotherapy	504
CT scan	236
diagnostic procedures	33
doctor visit	1405
hormone therapy	29
hospital care	293
inpatient care	293
lab tests	5133
minimally invasive procedures	661
neck imaging	16
pelvic imaging	84
preventive care	22
radiation therapy	64
thoracic (chest) imaging	141
thyroid function tests	161
vaccines	19
X-rays	14

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Thomas F. Gregory, MD.

**Gender**
Male	353
Female	451

**Ethnicity**
Black / African American	70
Asian / Pacific Islander	0
Non-Hispanic White	707
Hispanic	11
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	294
85 and over	82
Less than 65	61
65 to 74	366

Average of Total of Conditions of Medicare patients treated by Dr. Thomas F. Gregory, MD From 2012 - 2022

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

Hypertension	66
High Cholesterol	52
Stroke	5
Ischemic Heart Disease	33
Depression	21
Chronic Kidney Disease	33
Asthma	8
Osteoporosis	8
Heart Failure	20
Chronic Obstructive Pulmonary Disease	20
Diabetes	28
Atrial Fibrillation	13
Cancer	44
Dementia	8

Education & Training

Dr. Thomas F. Gregory, MD graduated from University of Texas Medical Branch School of Medicine in 1993. He completed residency at Internal Medicine: University of Texas Medical Branch at Galveston, Galveston, Texas. He is certified by the Board Certification: Medical Oncology and has a state license in Texas.

Medical School: University of Texas Medical Branch School of Medicine (1993)

Residency: Internal Medicine: University of Texas Medical Branch at Galveston, Galveston, Texas

Board Certification: Board Certification: Medical Oncology

Licensed In: Texas

Affiliations & Hospitals

Dr. Thomas F. Gregory, MD is associated with these hospitals and organizations:

CHRISTUS Health

Texas Oncology

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General Payments

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

**Payments by Company**
Janssen Scientific Affairs, LLC	$237 ZYTIGA $129	DARZALEX $108
Pharmacyclics LLC, An AbbVie Company	$179 IMBRUVICA $128	EPKINLY $51
Regeneron Healthcare Solutions, Inc.	$128 LIBTAYO $128
GlaxoSmithKline, LLC.	$118 JEMPERLI $90	ZEJULA $28
Takeda Pharmaceuticals U.S.A., Inc.	$117 NINLARO $117
Other	$1,412 MONJUVI $89	VELCADE $82	Enhertu $74	ONIVYDE $69	SARCLISA $66	Other $1,032

**Types of Payments**
Food and Beverage	$1,926
Education	$266

Biography

Dr. Thomas Gregory's specialties are adult oncology, medical oncology, and hematology (blood disorders). His hospital/clinic affiliations include CHRISTUS Health and Texas Oncology. Dr. Gregory attended medical school at the University of Texas Medical Branch School of Medicine. He is conversant in Spanish.