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Home > TX Providers > Optometrists

Mr. Thomas James Markus, OD

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Specializes in: Optometry (Primary Eye Care)

13333 Dotson Road Suite 200
Houston, TX 77070

(281) 890-1784

Mr. Thomas James Markus, OD is an optometrist in Houston, TX specializing in optometry (primary eye care).

Office Locations

13333 Dotson Road Suite 200
Houston, TX 77070

(281) 890-1784

(281) 890-5733

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Noteworthy Medicare Patient Procedures Performed by Mr. Thomas James Markus, OD in 2023

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

Top 5%

By Volume:

eye procedures

SCODI of the posterior segment

In 2023, Mr. Thomas James Markus, OD performed more eye procedures, and SCODI of the posterior segment (SCODI-P) procedures for Medicare patients than 95% of providers in related specialties within Texas.

Top 25%

By Volume:

epilation for trichiasis

By Affordability:

intermediate eye exam

lab tests

tear osmolarity test

In 2012, among providers in related specialties within Texas, Mr. Thomas James Markus, OD performed more epilation for trichiasis (non-surgical removal of misdirected eyelash) procedures for Medicare patients than 75% of them and he also had a list price for intermediate eye exam, lab tests, and tear osmolarity 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 Mr. Thomas James Markus, OD treated as an optometrist in Houston, TX during 2012 were eye procedures and ultrasound (sonogram).

Volume of procedures performed by Mr. Thomas James Markus, OD for Medicare patients.

eye procedures	1862
ultrasound (sonogram)	64

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Mr. Thomas James Markus, OD treated as an optometrist in Houston, TX during 2013 were eye procedures, lab tests and ultrasound (sonogram).

Volume of procedures performed by Mr. Thomas James Markus, OD for Medicare patients.

eye procedures	1824
lab tests	149
ultrasound (sonogram)	40

2013 Medicare Patient Data

Information about Medicare patients treated by Mr. Thomas James Markus, OD.

**Gender**
Male	170
Female	273

**Ethnicity**
Non-Hispanic White	388
Black	22
Hispanic	22
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	185
From 75 to 84	197
85 and over	45
Less than 65	16

Conditions of Medicare patients treated by Mr. Thomas James Markus, OD in 2013

Hypertension	72
High Cholesterol	61
Stroke	6
Ischemic Heart Disease	43
Depression	16
Chronic Kidney Disease	19
Asthma	5
Osteoperosis	14
Atrial Fibrilation	9
Heart Failure	15
Chronic Obstructive Pulmonary Disease	12
Diabetes	35
Dementia	10
Cancer	12

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Mr. Thomas James Markus, OD treated as an optometrist in Houston, TX during 2014 were eye procedures, lab tests and ultrasound (sonogram).

Volume of procedures performed by Mr. Thomas James Markus, OD for Medicare patients.

eye procedures	1876
lab tests	416
ultrasound (sonogram)	38

2014 Medicare Patient Data

Information about Medicare patients treated by Mr. Thomas James Markus, OD.

**Gender**
Male	161
Female	273

**Ethnicity**
Non-Hispanic White	372
Black	19
Hispanic	19
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	203
From 75 to 84	173
85 and over	45
Less than 65	13

Conditions of Medicare patients treated by Mr. Thomas James Markus, OD in 2014

Hypertension	74
High Cholesterol	63
Stroke	5
Ischemic Heart Disease	38
Depression	15
Chronic Kidney Disease	19
Asthma	6
Osteoperosis	12
Atrial Fibrilation	10
Heart Failure	14
Chronic Obstructive Pulmonary Disease	11
Diabetes	34
Dementia	9
Cancer	11

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Mr. Thomas James Markus, OD treated as an optometrist in Houston, TX during 2015 were eye procedures, lab tests, evoked potential test and ultrasound (sonogram).

Volume of procedures performed by Mr. Thomas James Markus, OD for Medicare patients.

evoked potential test	65
eye procedures	2144
lab tests	255
ultrasound (sonogram)	55

2015 Medicare Patient Data

Information about Medicare patients treated by Mr. Thomas James Markus, OD.

**Gender**
Male	340
Female	590

**Ethnicity**
Non-Hispanic White	800
Black	46
Hispanic	36
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	424
From 75 to 84	364
85 and over	100
Less than 65	42

Conditions of Medicare patients treated by Mr. Thomas James Markus, OD in 2015

Hypertension	73
High Cholesterol	66
Stroke	8
Ischemic Heart Disease	37
Depression	16
Chronic Kidney Disease	18
Asthma	9
Osteoperosis	12
Atrial Fibrilation	11
Heart Failure	14
Chronic Obstructive Pulmonary Disease	11
Diabetes	34
Dementia	9
Cancer	10

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Mr. Thomas James Markus, OD treated as an optometrist in Houston, TX during 2016 were eye procedures, lab tests, evoked potential test and ultrasound (sonogram).

Volume of procedures performed by Mr. Thomas James Markus, OD for Medicare patients.

doctor visit	26
evoked potential test	115
eye procedures	2248
lab tests	247
ultrasound (sonogram)	44

2016 Medicare Patient Data

Information about Medicare patients treated by Mr. Thomas James Markus, OD.

**Gender**
Male	192
Female	305

**Ethnicity**
Non-Hispanic White	426
Black	24
Hispanic	25
Asian	11
Other	11
Native American	0

**Age**
From 65 to 74	237
From 75 to 84	192
85 and over	56
Less than 65	12

Conditions of Medicare patients treated by Mr. Thomas James Markus, OD in 2016

Hypertension	70
High Cholesterol	61
Stroke	4
Ischemic Heart Disease	39
Depression	13
Chronic Kidney Disease	24
Asthma	12
Osteoperosis	7
Atrial Fibrilation	10
Heart Failure	12
Chronic Obstructive Pulmonary Disease	12
Diabetes	32
Dementia	10
Cancer	10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Mr. Thomas James Markus, OD treated as an optometrist in Houston, TX during 2017 were eye procedures, lab tests, evoked potential test and ultrasound (sonogram).

Volume of procedures performed by Mr. Thomas James Markus, OD for Medicare patients.

doctor visit	51
evoked potential test	105
eye procedures	2170
lab tests	290
ultrasound (sonogram)	42

2017 Medicare Patient Data

Information about Medicare patients treated by Mr. Thomas James Markus, OD.

**Gender**
Male	160
Female	298

**Ethnicity**
Non-Hispanic White	400
Black	20
Hispanic	21
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	226
From 75 to 84	159
85 and over	54
Less than 65	19

Conditions of Medicare patients treated by Mr. Thomas James Markus, OD in 2017

Hypertension	74
High Cholesterol	58
Stroke	6
Ischemic Heart Disease	40
Depression	13
Chronic Kidney Disease	27
Asthma	9
Osteoperosis	13
Atrial Fibrilation	12
Heart Failure	14
Chronic Obstructive Pulmonary Disease	15
Diabetes	30
Dementia	9
Cancer	11

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Mr. Thomas James Markus, OD treated as an optometrist in Houston, TX during 2018 were eye procedures, lab tests, evoked potential test and ultrasound (sonogram).

Volume of procedures performed by Mr. Thomas James Markus, OD for Medicare patients.

doctor visit	44
evoked potential test	102
eye procedures	2252
lab tests	354
ultrasound (sonogram)	36

2018 Medicare Patient Data

Information about Medicare patients treated by Mr. Thomas James Markus, OD.

**Gender**
Male	195
Female	307

**Ethnicity**
Non-Hispanic White	422
Black	29
Hispanic	27
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	249
From 75 to 84	189
85 and over	51
Less than 65	13

Conditions of Medicare patients treated by Mr. Thomas James Markus, OD in 2018

Hypertension	69
High Cholesterol	66
Stroke	5
Ischemic Heart Disease	40
Depression	13
Chronic Kidney Disease	27
Asthma	9
Osteoperosis	12
Atrial Fibrilation	12
Heart Failure	12
Chronic Obstructive Pulmonary Disease	13
Diabetes	30
Dementia	7
Cancer	11

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Mr. Thomas James Markus, OD treated as an optometrist in Houston, TX during 2019 were eye procedures, lab tests, evoked potential test and ultrasound (sonogram).

Volume of procedures performed by Mr. Thomas James Markus, OD for Medicare patients.

doctor visit	47
evoked potential test	76
eye procedures	2427
lab tests	332
ultrasound (sonogram)	30

2019 Medicare Patient Data

Information about Medicare patients treated by Mr. Thomas James Markus, OD.

**Gender**
Male	187
Female	323

**Ethnicity**
Non-Hispanic White	440
Black	23
Hispanic	25
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	252
From 75 to 84	199
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Mr. Thomas James Markus, OD in 2019

Hypertension	74
High Cholesterol	69
Stroke	5
Ischemic Heart Disease	41
Depression	16
Chronic Kidney Disease	30
Asthma	9
Osteoperosis	14
Atrial Fibrilation	13
Heart Failure	15
Chronic Obstructive Pulmonary Disease	13
Diabetes	31
Dementia	8
Cancer	12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Mr. Thomas James Markus, OD treated as an optometrist in Houston, TX during 2020 were eye procedures, lab tests, evoked potential test and ultrasound (sonogram).

Volume of procedures performed by Mr. Thomas James Markus, OD for Medicare patients.

doctor visit	70
evoked potential test	28
eye procedures	2212
lab tests	194
ultrasound (sonogram)	22

2020 Medicare Patient Data

Information about Medicare patients treated by Mr. Thomas James Markus, OD.

**Gender**
Male	184
Female	267

**Ethnicity**
Non-Hispanic White	387
Black	23
Hispanic	21
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	219
From 75 to 84	175
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Mr. Thomas James Markus, OD in 2020

Hypertension	70
High Cholesterol	67
Stroke	4
Ischemic Heart Disease	41
Depression	17
Chronic Kidney Disease	30
Asthma	10
Osteoperosis	13
Atrial Fibrilation	12
Heart Failure	14
Chronic Obstructive Pulmonary Disease	10
Diabetes	30
Dementia	8
Cancer	11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Mr. Thomas James Markus, OD treated as an optometrist in Houston, TX during 2021 were eye procedures, lab tests and ultrasound (sonogram).

Volume of procedures performed by Mr. Thomas James Markus, OD for Medicare patients.

doctor visit	225
eye procedures	2212
lab tests	167
ultrasound (sonogram)	21

2021 Medicare Patient Data

Information about Medicare patients treated by Mr. Thomas James Markus, OD.

**Gender**
Male	180
Female	288

**Ethnicity**
Non-Hispanic White	402
Black	24
Hispanic	23
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	210
From 75 to 84	200
85 and over	47
Less than 65	11

Conditions of Medicare patients treated by Mr. Thomas James Markus, OD in 2021

Hypertension	71
High Cholesterol	71
Stroke	5
Ischemic Heart Disease	43
Depression	18
Chronic Kidney Disease	30
Asthma	9
Osteoperosis	14
Atrial Fibrilation	14
Heart Failure	15
Chronic Obstructive Pulmonary Disease	11
Diabetes	32
Dementia	7
Cancer	13

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Mr. Thomas James Markus, OD treated as an optometrist in Houston, TX during 2022 were eye procedures, lab tests, ultrasound (sonogram) and evoked potential test.

Volume of procedures performed by Mr. Thomas James Markus, OD for Medicare patients.

doctor visit	70
evoked potential test	23
eye procedures	2332
lab tests	101
lacrimal (tearing system) procedures	15
ultrasound (sonogram)	31

2022 Medicare Patient Data

Information about Medicare patients treated by Mr. Thomas James Markus, OD.

**Gender**
Male	171
Female	295

**Ethnicity**
Non-Hispanic White	399
Black	16
Hispanic	32
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	194
From 75 to 84	189
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Mr. Thomas James Markus, OD in 2022

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	29
Depression	20
Chronic Kidney Disease	20
Asthma	11
Osteoperosis	21
Atrial Fibrilation	19
Heart Failure	14
Chronic Obstructive Pulmonary Disease	14
Diabetes	32
Dementia	5
Cancer	15

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Mr. Thomas James Markus, OD for Medicare patients.

The highest averages for the top procedures that Mr. Thomas James Markus, OD treated as an optometrist in Houston, TX were eye procedures, lab tests, evoked potential test and ultrasound (sonogram).

doctor visit	76
evoked potential test	73
eye procedures	2141
lab tests	250
lacrimal (tearing system) procedures	15
ultrasound (sonogram)	38

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Mr. Thomas James Markus, OD.

**Gender**
Male	176
Female	292

**Ethnicity**
Black / African American	22
Asian / Pacific Islander	1
Non-Hispanic White	403
Native American / Alaskan Native	0
Hispanic	22
Other	1

**Age**
75 to 84	185
85 and over	36
Less than 65	11
65 to 74	218

Average of Total of Conditions of Medicare patients treated by Mr. Thomas James Markus, OD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Mr. Thomas James Markus, OD treated were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension	65
High Cholesterol	59
Stroke	5
Ischemic Heart Disease	35
Depression	14
Chronic Kidney Disease	22
Asthma	8
Osteoporosis	12
Heart Failure	12
Chronic Obstructive Pulmonary Disease	11
Diabetes	29
Atrial Fibrillation	11
Dementia	7
Cancer	10

Education & Training

He has a state license in Texas.

Licensed In: Texas

Ratings & Reviews

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General Payments

These charts describe general payments received by Mr. Thomas James Markus, OD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Shire North American Group Inc	$546 XIIDRA $507	$39
AbbVie Inc.	$271 LUMIGAN $113	VUITY $85	ALPHAGAN P $74
Allergan Inc.	$243 COMBIGAN $122	RESTASIS $75	LUMIGAN $46
Oyster Point Pharma, Inc.	$204 TYRVAYA $204
Valeant Pharmaceuticals North America LLC	$185 DOCTORS ALLERGY FORMULA $102	PROLENSA $33	LOTEMAX GEL $25	ZYLET $14	ALREX $11
Other	$984 RESTASIS MULTIDOSE $125	TEPEZZA $89	VYZULTA $85	Rocklatan $74	Simbrinza $70	Other $541

**Types of Payments**
Food and Beverage	$2,359
Education	$75

Biography

Dr. Thomas Markus works as an optometry (primary eye care) specialist in Houston, TX. Dr. Markus has obtained a license to practice in Texas.

Select Year:

Mr. Thomas James Markus, OD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Mr. Thomas James Markus, OD in 2023

By Volume:

By Volume:

By Affordability:

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 Mr. Thomas James Markus, OD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Mr. Thomas James Markus, OD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Mr. Thomas James Markus, OD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Mr. Thomas James Markus, OD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Mr. Thomas James Markus, OD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Mr. Thomas James Markus, OD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Mr. Thomas James Markus, OD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Mr. Thomas James Markus, OD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Mr. Thomas James Markus, OD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Mr. Thomas James Markus, OD in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

Average of Total of Conditions of Medicare patients treated by Mr. Thomas James Markus, OD From 2012 - 2022

Education & Training

Ratings & Reviews

General Payments

Biography

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