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Dr. Hassan M. Alissa, MD

(8 Ratings)

Specializes in: Adult Rheumatology

University of Damascus Faculty of Medicine

Professional interests include: arthritis

1340 Wonder World Drive Suite 2203
San Marcos, TX 78666

(512) 667-7123

Dr. Hassan M. Alissa, MD is a rheumatologist in San Marcos, TX specializing in adult rheumatology. He graduated from University of Damascus Faculty of Medicine. Dr. Hassan M. Alissa, MD is affiliated with Ascension.

Office Locations

Ascension

1340 Wonder World Drive Suite 2203
San Marcos, TX 78666

(512) 667-7123

(512) 667-7328

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Hassan M. Alissa, MD treated as a rheumatologist in San Marcos, TX during 2012 were X-rays, musculoskeletal imaging, chemotherapy and biological response modifier (BRM) therapy.

Volume of procedures performed by Dr. Hassan M. Alissa, MD for Medicare patients.

aspiration	207
biological response modifier (BRM) therapy	425
chemotherapy	425
doctor visit	2565
hip imaging	81
injections	207
minimally invasive procedures	425
musculoskeletal imaging	943
spinal procedures	53
X-rays	1023

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Hassan M. Alissa, MD treated as a rheumatologist in San Marcos, TX during 2013 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and aspiration.

Volume of procedures performed by Dr. Hassan M. Alissa, MD for Medicare patients.

aspiration	154
biological response modifier (BRM) therapy	540
chemotherapy	540
doctor visit	2377
injections	154
minimally invasive procedures	540

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Hassan M. Alissa, MD.

**Gender**
Male	114
Female	464

**Ethnicity**
Non-Hispanic White	386
Black	33
Hispanic	146
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	238
From 75 to 84	133
85 and over	38
Less than 65	169

Conditions of Medicare patients treated by Dr. Hassan M. Alissa, MD in 2013

Hypertension	67
High Cholesterol	54
Stroke	4
Ischemic Heart Disease	30
Depression	28
Chronic Kidney Disease	16
Asthma	11
Osteoperosis	16
Atrial Fibrilation	8
Heart Failure	18
Chronic Obstructive Pulmonary Disease	13
Diabetes	31
Dementia	8
Cancer	5

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Hassan M. Alissa, MD treated as a rheumatologist in San Marcos, TX during 2014 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and aspiration.

Volume of procedures performed by Dr. Hassan M. Alissa, MD for Medicare patients.

aspiration	201
biological response modifier (BRM) therapy	683
chemotherapy	683
doctor visit	2371
injections	201
minimally invasive procedures	683

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Hassan M. Alissa, MD.

**Gender**
Male	138
Female	534

**Ethnicity**
Non-Hispanic White	473
Black	0
Hispanic	154
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	270
From 75 to 84	177
85 and over	41
Less than 65	184

Conditions of Medicare patients treated by Dr. Hassan M. Alissa, MD in 2014

Hypertension	65
High Cholesterol	56
Stroke	4
Ischemic Heart Disease	31
Depression	26
Chronic Kidney Disease	19
Asthma	10
Osteoperosis	15
Atrial Fibrilation	9
Heart Failure	17
Chronic Obstructive Pulmonary Disease	11
Diabetes	30
Dementia	8
Cancer	7

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Hassan M. Alissa, MD treated as a rheumatologist in San Marcos, TX during 2015 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and aspiration.

Volume of procedures performed by Dr. Hassan M. Alissa, MD for Medicare patients.

aspiration	182
biological response modifier (BRM) therapy	684
chemotherapy	684
doctor visit	2179
injections	182
minimally invasive procedures	684

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Hassan M. Alissa, MD.

**Gender**
Male	298
Female	1092

**Ethnicity**
Non-Hispanic White	980
Black	0
Hispanic	334
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	588
From 75 to 84	382
85 and over	74
Less than 65	346

Conditions of Medicare patients treated by Dr. Hassan M. Alissa, MD in 2015

Hypertension	71
High Cholesterol	58
Stroke	4
Ischemic Heart Disease	33
Depression	25
Chronic Kidney Disease	22
Asthma	14
Osteoperosis	13
Atrial Fibrilation	10
Heart Failure	18
Chronic Obstructive Pulmonary Disease	12
Diabetes	31
Dementia	8
Cancer	6

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Hassan M. Alissa, MD treated as a rheumatologist in San Marcos, TX during 2016 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and aspiration.

Volume of procedures performed by Dr. Hassan M. Alissa, MD for Medicare patients.

aspiration	125
biological response modifier (BRM) therapy	528
chemotherapy	528
doctor visit	2050
injections	125
minimally invasive procedures	528

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Hassan M. Alissa, MD.

**Gender**
Male	141
Female	516

**Ethnicity**
Non-Hispanic White	480
Black	0
Hispanic	142
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	303
From 75 to 84	164
85 and over	39
Less than 65	151

Conditions of Medicare patients treated by Dr. Hassan M. Alissa, MD in 2016

Hypertension	65
High Cholesterol	60
Stroke	3
Ischemic Heart Disease	38
Depression	28
Chronic Kidney Disease	29
Asthma	18
Osteoperosis	13
Atrial Fibrilation	10
Heart Failure	16
Chronic Obstructive Pulmonary Disease	12
Diabetes	30
Dementia	8
Cancer	6

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Hassan M. Alissa, MD treated as a rheumatologist in San Marcos, TX during 2017 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and aspiration.

Volume of procedures performed by Dr. Hassan M. Alissa, MD for Medicare patients.

aspiration	175
biological response modifier (BRM) therapy	454
chemotherapy	454
doctor visit	2354
injections	175
minimally invasive procedures	454

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Hassan M. Alissa, MD.

**Gender**
Male	155
Female	549

**Ethnicity**
Non-Hispanic White	521
Black	22
Hispanic	148
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	318
From 75 to 84	193
85 and over	39
Less than 65	154

Conditions of Medicare patients treated by Dr. Hassan M. Alissa, MD in 2017

Hypertension	68
High Cholesterol	54
Stroke	3
Ischemic Heart Disease	36
Depression	28
Chronic Kidney Disease	28
Asthma	11
Osteoperosis	12
Atrial Fibrilation	8
Heart Failure	15
Chronic Obstructive Pulmonary Disease	11
Diabetes	29
Dementia	11
Cancer	7

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Hassan M. Alissa, MD treated as a rheumatologist in San Marcos, TX during 2018 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and aspiration.

Volume of procedures performed by Dr. Hassan M. Alissa, MD for Medicare patients.

aspiration	106
biological response modifier (BRM) therapy	241
chemotherapy	241
doctor visit	2469
injections	106
minimally invasive procedures	241

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Hassan M. Alissa, MD.

**Gender**
Male	175
Female	612

**Ethnicity**
Non-Hispanic White	584
Black	27
Hispanic	162
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	377
From 75 to 84	205
85 and over	42
Less than 65	163

Conditions of Medicare patients treated by Dr. Hassan M. Alissa, MD in 2018

Hypertension	66
High Cholesterol	59
Stroke	3
Ischemic Heart Disease	34
Depression	29
Chronic Kidney Disease	28
Asthma	11
Osteoperosis	12
Atrial Fibrilation	9
Heart Failure	14
Chronic Obstructive Pulmonary Disease	12
Diabetes	29
Dementia	10
Cancer	7

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Hassan M. Alissa, MD treated as a rheumatologist in San Marcos, TX during 2019 were aspiration, injections, chemotherapy and biological response modifier (BRM) therapy.

Volume of procedures performed by Dr. Hassan M. Alissa, MD for Medicare patients.

aspiration	110
biological response modifier (BRM) therapy	78
chemotherapy	78
doctor visit	2530
injections	110
minimally invasive procedures	78

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Hassan M. Alissa, MD.

**Gender**
Male	174
Female	595

**Ethnicity**
Non-Hispanic White	566
Black	30
Hispanic	157
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	367
From 75 to 84	206
85 and over	39
Less than 65	157

Conditions of Medicare patients treated by Dr. Hassan M. Alissa, MD in 2019

Hypertension	67
High Cholesterol	59
Stroke	3
Ischemic Heart Disease	32
Depression	30
Chronic Kidney Disease	29
Asthma	11
Osteoperosis	12
Atrial Fibrilation	9
Heart Failure	13
Chronic Obstructive Pulmonary Disease	12
Diabetes	31
Dementia	7
Cancer	6

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Hassan M. Alissa, MD treated as a rheumatologist in San Marcos, TX during 2020 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and aspiration.

Volume of procedures performed by Dr. Hassan M. Alissa, MD for Medicare patients.

aspiration	32
biological response modifier (BRM) therapy	58
chemotherapy	58
doctor visit	1737
injections	32
minimally invasive procedures	58

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Hassan M. Alissa, MD.

**Gender**
Male	156
Female	556

**Ethnicity**
Non-Hispanic White	537
Black	27
Hispanic	132
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	351
From 75 to 84	183
85 and over	40
Less than 65	138

Conditions of Medicare patients treated by Dr. Hassan M. Alissa, MD in 2020

Hypertension	68
High Cholesterol	59
Stroke	3
Ischemic Heart Disease	32
Depression	27
Chronic Kidney Disease	32
Asthma	12
Osteoperosis	13
Atrial Fibrilation	8
Heart Failure	12
Chronic Obstructive Pulmonary Disease	10
Diabetes	29
Dementia	7
Cancer	7

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Hassan M. Alissa, MD treated as a rheumatologist in San Marcos, TX during 2021 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and aspiration.

Volume of procedures performed by Dr. Hassan M. Alissa, MD for Medicare patients.

aspiration	33
biological response modifier (BRM) therapy	52
chemotherapy	52
doctor visit	1985
injections	33
minimally invasive procedures	52

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Hassan M. Alissa, MD.

**Gender**
Male	138
Female	532

**Ethnicity**
Non-Hispanic White	499
Black	26
Hispanic	124
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	322
From 75 to 84	189
85 and over	36
Less than 65	123

Conditions of Medicare patients treated by Dr. Hassan M. Alissa, MD in 2021

Hypertension	67
High Cholesterol	63
Stroke	3
Ischemic Heart Disease	36
Depression	30
Chronic Kidney Disease	35
Asthma	12
Osteoperosis	16
Atrial Fibrilation	9
Heart Failure	12
Chronic Obstructive Pulmonary Disease	11
Diabetes	29
Dementia	10
Cancer	6

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Hassan M. Alissa, MD treated as a rheumatologist in San Marcos, TX during 2022 were aspiration and injections.

Volume of procedures performed by Dr. Hassan M. Alissa, MD for Medicare patients.

aspiration	19
doctor visit	1831
injections	19

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Hassan M. Alissa, MD.

**Gender**
Male	125
Female	474

**Ethnicity**
Non-Hispanic White	457
Black	18
Hispanic	107
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	287
From 75 to 84	168
85 and over	33
Less than 65	111

Conditions of Medicare patients treated by Dr. Hassan M. Alissa, MD in 2022

Hypertension	74
High Cholesterol	72
Stroke	6
Ischemic Heart Disease	27
Depression	27
Chronic Kidney Disease	24
Asthma	17
Osteoperosis	20
Atrial Fibrilation	14
Heart Failure	12
Chronic Obstructive Pulmonary Disease	16
Diabetes	30
Dementia	5
Cancer	10

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Hassan M. Alissa, MD treated as a rheumatologist in San Marcos, TX during 2023 were chemotherapy, biological response modifier (BRM) therapy, minimally invasive procedures and aspiration.

Volume of procedures performed by Dr. Hassan M. Alissa, MD for Medicare patients.

aspiration	27
biological response modifier (BRM) therapy	42
chemotherapy	42
doctor visit	1583
injections	27
minimally invasive procedures	42

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Hassan M. Alissa, MD.

**Gender**
Male	108
Female	416

**Ethnicity**
Non-Hispanic White	401
Black	13
Hispanic	91
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	248
From 75 to 84	158
85 and over	28
Less than 65	90

Conditions of Medicare patients treated by Dr. Hassan M. Alissa, MD in 2023

Hypertension	75
High Cholesterol	74
Stroke	5
Ischemic Heart Disease	27
Depression	26
Chronic Kidney Disease	25
Asthma	16
Osteoperosis	23
Atrial Fibrilation	16
Heart Failure	12
Chronic Obstructive Pulmonary Disease	17
Diabetes	28
Dementia	5
Cancer	9

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Hassan M. Alissa, MD treated as a rheumatologist in San Marcos, TX during 2024 were aspiration and injections.

Volume of procedures performed by Dr. Hassan M. Alissa, MD for Medicare patients.

aspiration	19
doctor visit	1561
injections	19

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Hassan M. Alissa, MD.

**Gender**
Male	101
Female	422

**Ethnicity**
Non-Hispanic White	409
Black	12
Hispanic	88
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	257
From 75 to 84	166
85 and over	27
Less than 65	73

Conditions of Medicare patients treated by Dr. Hassan M. Alissa, MD in 2024

Hypertension	74
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	28
Depression	30
Chronic Kidney Disease	25
Asthma	18
Osteoperosis	25
Atrial Fibrilation	16
Heart Failure	13
Chronic Obstructive Pulmonary Disease	17
Diabetes	28
Dementia	6
Cancer	11

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Hassan M. Alissa, MD for Medicare patients.

The highest averages for the top procedures that Dr. Hassan M. Alissa, MD treated as a rheumatologist in San Marcos, TX were X-rays, musculoskeletal imaging, chemotherapy and biological response modifier (BRM) therapy.

aspiration	106
biological response modifier (BRM) therapy	344
chemotherapy	344
doctor visit	2122
hip imaging	81
injections	106
minimally invasive procedures	344
musculoskeletal imaging	943
spinal procedures	53
X-rays	1023

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Hassan M. Alissa, MD.

**Gender**
Male	140
Female	520

**Ethnicity**
Black / African American	16
Asian / Pacific Islander	0
Non-Hispanic White	484
Hispanic	137
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	178
85 and over	36
Less than 65	143
65 to 74	302

Average of Total of Conditions of Medicare patients treated by Dr. Hassan M. Alissa, MD From 2012 - 2024

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

Hypertension	63
High Cholesterol	57
Stroke	3
Ischemic Heart Disease	29
Depression	25
Chronic Kidney Disease	24
Asthma	12
Osteoporosis	14
Heart Failure	13
Chronic Obstructive Pulmonary Disease	11
Diabetes	27
Atrial Fibrillation	9
Cancer	6
Dementia	7

Education & Training

Dr. Hassan M. Alissa, MD graduated from University of Damascus Faculty of Medicine. He completed residency at Loyola University Affiliated Hospitals. He is certified by the Certifications: The American Board of Internal Medicine - Rheumatology and has a state license in Missouri.

Medical School: University of Damascus Faculty of Medicine

Residency: Loyola University Affiliated Hospitals

Board Certification: Certifications: The American Board of Internal Medicine - Rheumatology

Licensed In: Missouri

Ratings & Reviews

Dr. Hassan M. Alissa, MD has a high overall rating with an average of 3.75 out of 5 stars based on 8 ratings. We collect ratings and reviews of Dr. Hassan M. Alissa, MD from all over the web to help you find the right in San Marcos, TX.

3.75

Overall Rating

(8 Ratings)

Leave a Review

Reviews Left On DocSpot

Overall Rating: 5.0 2020-06-28

Dr. Alissa actually cares about his patients.  He normally monitors my blood for changes concerning RA.  He recently noticed an anomaly unrelated to that and he was concerned enough to call me himself directly to advise me.  He also called a few times personally to follow up on this.

General Payments

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

**Payments by Company**
Amgen Inc.	$1,373 Enbrel $486	Prolia $479	Otezla $278	KRYSTEXXA $56	AVSOLA $31	Other $43
Pfizer Inc.	$1,044 XELJANZ $403	LYRICA $326	INFLECTRA $110	CELEBREX $92	PAXLOVID $57	Other $58
Janssen Biotech, Inc.	$1,043 SIMPONI ARIA $325	STELARA $315	Tremfya $212	REMICADE $162	SIMPONI $29
AbbVie Inc.	$776 Rinvoq $484	Skyrizi $172	BOTOX $61	Humira $59
E.R. Squibb & Sons, L.L.C.	$721 ORENCIA $721
Other	$4,984 Actemra $576	Humira $400	ACTHAR $354	BENLYSTA $341	Cimzia $328	Other $2,985

**Types of Payments**
Food and Beverage	$9,502
Education	$264
Consulting Fee	$175

Research Payments

Dr. Hassan M. Alissa, MD has received 216 research payments totaling $1,013,650.

Biography

Dr. Hassan Alissa is a physician who specializes in adult rheumatology. In his practice, Dr. Alissa focuses on arthritis. The average patient rating for Dr. Alissa is 4.0 stars (out of 5). He studied medicine at the University of Damascus Faculty of Medicine. His training includes residency programs at Weiss Memorial Hospital and a hospital affiliated with Loyola University. Dr. Alissa is professionally affiliated with Dell Seton Medical Center.

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Dr. Hassan M. Alissa, 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. Hassan M. Alissa, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Hassan M. Alissa, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Hassan M. Alissa, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Hassan M. Alissa, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Hassan M. Alissa, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Hassan M. Alissa, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Hassan M. Alissa, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Hassan M. Alissa, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Hassan M. Alissa, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Hassan M. Alissa, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Hassan M. Alissa, MD in 2023

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

2024 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Hassan M. Alissa, MD in 2024

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Average Medicare Patient Data From 2012 - 2024

Average of Total of Conditions of Medicare patients treated by Dr. Hassan M. Alissa, MD From 2012 - 2024

Education & Training

Ratings & Reviews

General Payments

Research Payments

Biography

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