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Home > TX Providers > Family Physicians & Family Medicine Specialists

Dr. Derry Rajan, MD

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Specializes in: Family Medicine and Surgery

Topiwala National Medical College

Professional interests include: kidney failure, hypertension (high blood pressure), arrhythmias (irregular heartbeats), and more.

2000 Green Road Suite 300
Ann Arbor, MI 48105

(210) 297-6500

Dr. Derry Rajan, MD is a family medicine practitioner in San Antonio, TX specializing in family medicine and surgery. He graduated from Topiwala National Medical College. Dr. Derry Rajan, MD is affiliated with CHRISTUS Trinity Clinic, CHRISTUS Health, Baptist Health System, Baptist Hospital and HOSPITAL MEDICINE SERVICES OF TX, PC.

Office Locations

Address:

11823 Culebra Road
San Antonio, TX 78253

Address:

2000 Green Road Suite 300
Ann Arbor, MI 48105

Some issues Dr. Derry Rajan, MD can help you with:

Anemia

Anemia is the most common blood disorder. It occurs when the body does not have enough red blood cells to carry oxygen to the tissues. Blood loss, insufficient red blood cell production, and red blood cell destruction are the three main causes of anemia. These issues may arise from such conditions as iron deficiency, heavy periods, ulcers, kidney disease, as well as some forms of cancer.

An individual with anemia will have the following symptoms: shortness of breath, weakness, dizziness, cold hands or feet, paleness, and irritability. Anemia is diagnosed when blood tests show low counts for hemoglobin, which is the protein responsible for carrying oxygen to different tissues throughout the body.

Treatments for anemia are dependent on the kind of anemia an individual has. For example, iron supplementation may correct iron deficiency anemia. For anemia caused by chronic kidney failure, chemotherapy treatments, and HIV/AIDS, a group of medications called erythropoiesis-stimulating agents may be prescribed.

Asthma

Asthma is a chronic lung disease where the tissue and airways of the lungs become extremely sensitive to certain substances. When these substances are breathed in, the lungs become inflamed. The muscles around the airways tighten and squeeze the lungs, and passages within the lungs swell and tighten. The airways themselves produce mucus, which further clogs the tightened, swollen airways. A person having an asthma attack finds it very difficult to breathe, and a severe attack can even be fatal.

Asthma affects people of all ages, but people with asthma are most often diagnosed as children. Symptoms can include wheezing, a tight feeling in the chest, shortness of breath, and coughing. Some people have mild symptoms all the time, and some people have no symptoms at all, but everyone with asthma is susceptible to occasional severe attacks or flare-ups of symptoms when they are exposed to triggers. Triggers vary widely but can include:

Allergens (dust mites, pet fur, mold, pollen, grass)
Irritants (smoke, pollution, dust, chemicals)
Viral infections
Physical activity, especially outdoors
Certain medications or chemicals in foods (aspirin, sulfites)

Treatment for most asthma patients involves three steps. Patients learn what their asthma triggers are and avoid them. They take a daily control medication, usually an inhaled corticosteroid, to reduce inflammation in the lungs. Also, they have rescue medication with them at all times to take in case of a severe attack. These quick-acting inhaled medications relax the muscles around the airways and allow the lungs to open up for air.

There is no cure for asthma, but with treatment it should not interfere with daily life and activities.

doctor visit	98
lab tests	9

**Gender**
Male	76
Female	142

**Ethnicity**
Non-Hispanic White	176
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	102
From 75 to 84	68
85 and over	0
Less than 65	0

Hypertension	60
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	26
Depression	20
Chronic Kidney Disease	21
Asthma	14
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	16
Diabetes	28
Dementia	0
Cancer	0

breathing treatment	31
doctor visit	328
lab tests	110
preventive care	22
thoracic (chest) imaging	24
vaccines	22
X-rays	24

**Gender**
Male	133
Female	186

**Ethnicity**
Non-Hispanic White	280
Black	0
Hispanic	28
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	166
From 75 to 84	105
85 and over	28
Less than 65	20

Hypertension	64
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	29
Depression	20
Chronic Kidney Disease	21
Asthma	15
Osteoperosis	5
Atrial Fibrilation	10
Heart Failure	14
Chronic Obstructive Pulmonary Disease	9
Diabetes	22
Dementia	9
Cancer	8

**Gender**
Male	117
Female	191

**Ethnicity**
Non-Hispanic White	280
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	154
From 75 to 84	106
85 and over	36
Less than 65	12

Hypertension	61
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	27
Depression	21
Chronic Kidney Disease	19
Asthma	8
Osteoperosis	6
Atrial Fibrilation	13
Heart Failure	11
Chronic Obstructive Pulmonary Disease	8
Diabetes	19
Dementia	8
Cancer	9

**Gender**
Male	161
Female	229

**Ethnicity**
Non-Hispanic White	323
Black	0
Hispanic	52
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	178
From 75 to 84	135
85 and over	43
Less than 65	34

Hypertension	64
High Cholesterol	62
Stroke	5
Ischemic Heart Disease	36
Depression	21
Chronic Kidney Disease	30
Asthma	9
Osteoperosis	5
Atrial Fibrilation	10
Heart Failure	17
Chronic Obstructive Pulmonary Disease	13
Diabetes	25
Dementia	11
Cancer	11

doctor visit	158
hospital care	694
inpatient care	639
lab tests	44
outpatient care	55

**Gender**
Male	209
Female	236

**Ethnicity**
Non-Hispanic White	258
Black	0
Hispanic	150
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	175
From 75 to 84	122
85 and over	75
Less than 65	73

Hypertension	75
High Cholesterol	72
Stroke	10
Ischemic Heart Disease	52
Depression	30
Chronic Kidney Disease	55
Asthma	10
Osteoperosis	8
Atrial Fibrilation	21
Heart Failure	38
Chronic Obstructive Pulmonary Disease	22
Diabetes	53
Dementia	26
Cancer	11

doctor visit	9
hospital care	546
inpatient care	499
outpatient care	47

**Gender**
Male	117
Female	124

**Ethnicity**
Non-Hispanic White	94
Black	0
Hispanic	110
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	97
From 75 to 84	57
85 and over	21
Less than 65	66

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	56
Depression	38
Chronic Kidney Disease	68
Asthma	10
Osteoperosis	10
Atrial Fibrilation	16
Heart Failure	41
Chronic Obstructive Pulmonary Disease	28
Diabetes	61
Dementia	29
Cancer	13

doctor visit	50
hospital care	1621
inpatient care	1574
outpatient care	47

Average Medicare Procedure Volume From 2015 - 2021

Volume of procedures performed by Dr. Derry Rajan, MD for Medicare patients.

The highest averages for the top procedures that Dr. Derry Rajan, MD treated as a family medicine practitioner in San Antonio, TX were hospital care, inpatient care, lab tests and outpatient care.

blood draw	11
doctor visit	193
hospital care	742
inpatient care	705
lab tests	91
outpatient care	49
preventive care	22
thoracic (chest) imaging	25
vaccines	22
X-rays	25

Average Medicare Patient Data From 2015 - 2021

Information about Medicare patients treated by Dr. Derry Rajan, MD.

**Gender**
Male	81
Female	110

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	141
Native American / Alaskan Native	0
Hispanic	34
Other	0

**Age**
75 to 84	59
85 and over	20
Less than 65	20
65 to 74	87

Average of Total of Conditions of Medicare patients treated by Dr. Derry Rajan, MD From 2015 - 2021

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

Hypertension	39
High Cholesterol	37
Stroke	2
Ischemic Heart Disease	22
Depression	15
Chronic Kidney Disease	21
Asthma	6
Osteoporosis	3
Heart Failure	12
Chronic Obstructive Pulmonary Disease	9
Diabetes	20
Atrial Fibrillation	7
Cancer	5
Dementia	8

Education & Training

Dr. Derry Rajan, MD graduated from Topiwala National Medical College. He completed residency at Maimonides Medical Center. He has a state license in New York.

Medical School: Topiwala National Medical College

Residency: Maimonides Medical Center

Licensed In: New York

Affiliations & Hospitals

Dr. Derry Rajan, MD is associated with these hospitals and organizations:

CHRISTUS Trinity Clinic

CHRISTUS Health

Baptist Health System

Baptist Hospital

HOSPITAL MEDICINE SERVICES OF TX, PC

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General Payments

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

**Payments by Company**
AstraZeneca Pharmaceuticals LP	$197 BRILINTA $113	LOKELMA $84
Janssen Pharmaceuticals, Inc	$156 XARELTO $156
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)	$132 LifeVest $132
AbbVie Inc.	$84 AVYCAZ $61	TEFLARO $23
Baxter Healthcare	$42 BioTherapeutics - GAMMAGARD-KIOVIG $28	Non Franchise - Non Prod Related $15
Other	$56 ORBACTIV $25	DIFICID $16	ZYVOX $15

**Types of Payments**
Food and Beverage	$667

Biography

Dr. Derry Rajan is a specialist in family medicine and surgery. Dr. Rajan's areas of expertise include cerebrovascular disease, diabetes, and arrhythmias (irregular heartbeats). He is affiliated with CHRISTUS Trinity Clinic and Baptist Health System.