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

Home > MD Providers

Dr. Ruth Sylvia Horowitz, MD

(Dr. Ruth S. Horowitz, MD)

(No ratings)

Specializes in: Adult Endocrinology

University of Cincinnati College of Medicine

6535 N Charles Street
Towson, MD 21204

(410) 828-7417

Dr. Ruth Sylvia Horowitz, MD is an endocrinologist in Lutherville Timonium, MD specializing in adult endocrinology. She graduated from University of Cincinnati College of Medicine. Dr. Ruth Sylvia Horowitz, MD is affiliated with University of Maryland Medical System, GBMC Healthcare and PRIVIA MEDICAL GROUP LLC.

Office Locations

1 Texas Station Court Suite 300
Lutherville Timonium, MD 21093

open_in_new

University of Maryland Medical System

6535 N Charles Street
Towson, MD 21204

(410) 828-7417

(410) 828-4695

open_in_new

In The News

“"We know that people who take preventive measures early on can slow the rate of decline," said Dr. Ruth S. Horowitz, chief of the division of endocrinology and metabolism at Greater Baltimore...”—"Nerve damage found in prediabetics", Daily Press, May 2016

Noteworthy Medicare Patient Procedures Performed by Dr. Ruth Sylvia Horowitz, MD in 2023

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

Top 5%

By Volume:

diabetes management

By Affordability:

blood draw

blood draw for lab tests

phlebotomy for lab tests

venipuncture

In 2023, among providers in related specialties within Maryland, Dr. Ruth Sylvia Horowitz, MD performed more diabetes management procedures for Medicare patients than 95% of them and she also had a list price for blood draw, blood draw for lab tests, phlebotomy for lab tests, and venipuncture (phlebotomy) 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 Volume:

A1C test

finger stick glucose test

In 2023, Dr. Ruth Sylvia Horowitz, MD performed more A1C test, and finger stick glucose test procedures for Medicare patients than 90% of providers in related specialties within Maryland.

Top 25%

By Volume:

blood draw

central DEXA

lab tests

phlebotomy for lab tests

By Affordability:

blood glucose self-monitoring

blood glucose tests

blood tests

diabetes management

finger stick glucose test

glucose monitoring

glucose tests

lab tests

In 2012, among providers in related specialties within Maryland, Dr. Ruth Sylvia Horowitz, MD performed more blood draw, central DEXA, lab tests, and phlebotomy for lab tests procedures for Medicare patients than 75% of them and she also had a list price for blood glucose self-monitoring, blood glucose tests, blood tests, diabetes management, finger stick glucose test, glucose monitoring, glucose tests, and lab tests 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. Ruth Sylvia Horowitz, MD treated as an endocrinologist in Lutherville Timonium, MD during 2012 were lab tests, preventive care, thyroid function tests and blood draw.

Volume of procedures performed by Dr. Ruth Sylvia Horowitz, MD for Medicare patients.

aspiration	24
blood draw	560
diabetes management	494
diagnostic procedures	24
doctor visit	1003
hospital care	189
image guided procedures	24
inpatient care	189
lab tests	2237
minimally invasive procedures	24
minor procedures	24
musculoskeletal imaging	140
neck imaging	125
preventive care	1099
thyroid function tests	609
ultrasound (sonogram)	125
vaccines	19
X-rays	140

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Ruth Sylvia Horowitz, MD treated as an endocrinologist in Lutherville Timonium, MD during 2013 were lab tests, preventive care, thyroid function tests and blood draw.

Volume of procedures performed by Dr. Ruth Sylvia Horowitz, MD for Medicare patients.

aspiration	21
blood draw	551
diabetes management	548
diagnostic procedures	21
doctor visit	1057
hospital care	63
image guided procedures	21
inpatient care	63
lab tests	2389
minimally invasive procedures	21
minor procedures	21
musculoskeletal imaging	131
neck imaging	112
preventive care	1220
thyroid function tests	601
ultrasound (sonogram)	112
vaccines	22
X-rays	131

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Ruth Sylvia Horowitz, MD.

**Gender**
Male	153
Female	444

**Ethnicity**
Non-Hispanic White	487
Black	95
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	293
From 75 to 84	174
85 and over	67
Less than 65	63

Conditions of Medicare patients treated by Dr. Ruth Sylvia Horowitz, MD in 2013

Hypertension	71
High Cholesterol	65
Stroke	6
Ischemic Heart Disease	35
Depression	18
Chronic Kidney Disease	26
Asthma	9
Osteoperosis	32
Atrial Fibrilation	12
Heart Failure	17
Chronic Obstructive Pulmonary Disease	11
Diabetes	57
Dementia	9
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Ruth Sylvia Horowitz, MD treated as an endocrinologist in Lutherville Timonium, MD during 2014 were lab tests, preventive care, thyroid function tests and blood draw.

Volume of procedures performed by Dr. Ruth Sylvia Horowitz, MD for Medicare patients.

aspiration	27
blood draw	579
diabetes management	573
diagnostic procedures	27
doctor visit	1113
hospital care	91
image guided procedures	27
inpatient care	91
lab tests	2598
minimally invasive procedures	27
minor procedures	27
musculoskeletal imaging	160
neck imaging	118
preventive care	1329
thyroid function tests	678
ultrasound (sonogram)	118
vaccines	34
X-rays	160

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Ruth Sylvia Horowitz, MD.

**Gender**
Male	161
Female	474

**Ethnicity**
Non-Hispanic White	521
Black	94
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	333
From 75 to 84	180
85 and over	71
Less than 65	51

Conditions of Medicare patients treated by Dr. Ruth Sylvia Horowitz, MD in 2014

Hypertension	69
High Cholesterol	64
Stroke	5
Ischemic Heart Disease	36
Depression	20
Chronic Kidney Disease	23
Asthma	9
Osteoperosis	29
Atrial Fibrilation	12
Heart Failure	17
Chronic Obstructive Pulmonary Disease	10
Diabetes	54
Dementia	7
Cancer	12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Ruth Sylvia Horowitz, MD treated as an endocrinologist in Lutherville Timonium, MD during 2015 were lab tests, preventive care, thyroid function tests and blood draw.

Volume of procedures performed by Dr. Ruth Sylvia Horowitz, MD for Medicare patients.

aspiration	21
blood draw	622
diabetes management	567
diagnostic procedures	21
doctor visit	1167
hospital care	123
image guided procedures	21
inpatient care	123
lab tests	2896
minimally invasive procedures	21
minor procedures	21
musculoskeletal imaging	164
neck imaging	131
preventive care	1385
thyroid function tests	715
ultrasound (sonogram)	131
vaccines	16
X-rays	164

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Ruth Sylvia Horowitz, MD.

**Gender**
Male	348
Female	982

**Ethnicity**
Non-Hispanic White	1066
Black	216
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	710
From 75 to 84	356
85 and over	142
Less than 65	122

Conditions of Medicare patients treated by Dr. Ruth Sylvia Horowitz, MD in 2015

Hypertension	70
High Cholesterol	63
Stroke	5
Ischemic Heart Disease	34
Depression	18
Chronic Kidney Disease	28
Asthma	11
Osteoperosis	26
Atrial Fibrilation	11
Heart Failure	15
Chronic Obstructive Pulmonary Disease	11
Diabetes	54
Dementia	6
Cancer	10

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Ruth Sylvia Horowitz, MD treated as an endocrinologist in Lutherville Timonium, MD during 2016 were lab tests, preventive care, thyroid function tests and diabetes management.

Volume of procedures performed by Dr. Ruth Sylvia Horowitz, MD for Medicare patients.

aspiration	19
blood draw	577
diabetes management	605
diagnostic procedures	19
doctor visit	1199
hospital care	71
image guided procedures	19
inpatient care	71
lab tests	2931
minimally invasive procedures	19
minor procedures	19
musculoskeletal imaging	194
neck imaging	132
preventive care	1444
thyroid function tests	709
ultrasound (sonogram)	132
vaccines	24
X-rays	194

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Ruth Sylvia Horowitz, MD.

**Gender**
Male	159
Female	498

**Ethnicity**
Non-Hispanic White	537
Black	100
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	365
From 75 to 84	189
85 and over	61
Less than 65	42

Conditions of Medicare patients treated by Dr. Ruth Sylvia Horowitz, MD in 2016

Hypertension	68
High Cholesterol	66
Stroke	5
Ischemic Heart Disease	33
Depression	18
Chronic Kidney Disease	37
Asthma	12
Osteoperosis	32
Atrial Fibrilation	11
Heart Failure	15
Chronic Obstructive Pulmonary Disease	9
Diabetes	50
Dementia	7
Cancer	10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Ruth Sylvia Horowitz, MD treated as an endocrinologist in Lutherville Timonium, MD during 2017 were lab tests, preventive care, thyroid function tests and diabetes management.

Volume of procedures performed by Dr. Ruth Sylvia Horowitz, MD for Medicare patients.

aspiration	21
blood draw	580
diabetes management	649
diagnostic procedures	21
doctor visit	1265
hospital care	88
image guided procedures	21
inpatient care	88
lab tests	3113
minimally invasive procedures	21
minor procedures	21
musculoskeletal imaging	188
neck imaging	126
preventive care	1550
thyroid function tests	755
ultrasound (sonogram)	126
vaccines	34
X-rays	188

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Ruth Sylvia Horowitz, MD.

**Gender**
Male	164
Female	547

**Ethnicity**
Non-Hispanic White	578
Black	101
Hispanic	0
Asian	0
Other	21
Native American	0

**Age**
From 65 to 74	361
From 75 to 84	238
85 and over	65
Less than 65	47

Conditions of Medicare patients treated by Dr. Ruth Sylvia Horowitz, MD in 2017

Hypertension	69
High Cholesterol	60
Stroke	3
Ischemic Heart Disease	34
Depression	22
Chronic Kidney Disease	38
Asthma	5
Osteoperosis	35
Atrial Fibrilation	10
Heart Failure	15
Chronic Obstructive Pulmonary Disease	9
Diabetes	50
Dementia	8
Cancer	11

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Ruth Sylvia Horowitz, MD treated as an endocrinologist in Lutherville Timonium, MD during 2018 were lab tests, diabetes management, preventive care and thyroid function tests.

Volume of procedures performed by Dr. Ruth Sylvia Horowitz, MD for Medicare patients.

aspiration	15
blood draw	530
diabetes management	1354
diagnostic procedures	15
doctor visit	1247
hospital care	72
image guided procedures	15
inpatient care	72
lab tests	3397
minimally invasive procedures	15
minor procedures	15
musculoskeletal imaging	203
neck imaging	116
preventive care	1119
thyroid function tests	687
ultrasound (sonogram)	116
vaccines	12
X-rays	203

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Ruth Sylvia Horowitz, MD.

**Gender**
Male	173
Female	542

**Ethnicity**
Non-Hispanic White	592
Black	94
Hispanic	0
Asian	0
Other	18
Native American	0

**Age**
From 65 to 74	358
From 75 to 84	245
85 and over	68
Less than 65	44

Conditions of Medicare patients treated by Dr. Ruth Sylvia Horowitz, MD in 2018

Hypertension	70
High Cholesterol	69
Stroke	4
Ischemic Heart Disease	33
Depression	21
Chronic Kidney Disease	37
Asthma	8
Osteoperosis	37
Atrial Fibrilation	9
Heart Failure	13
Chronic Obstructive Pulmonary Disease	9
Diabetes	49
Dementia	8
Cancer	12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Ruth Sylvia Horowitz, MD treated as an endocrinologist in Lutherville Timonium, MD during 2019 were lab tests, diabetes management, preventive care and thyroid function tests.

Volume of procedures performed by Dr. Ruth Sylvia Horowitz, MD for Medicare patients.

blood draw	439
diabetes management	1356
doctor visit	1236
hospital care	104
inpatient care	104
lab tests	3362
musculoskeletal imaging	204
neck imaging	119
preventive care	1071
thyroid function tests	654
ultrasound (sonogram)	119
vaccines	11
X-rays	204

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Ruth Sylvia Horowitz, MD.

**Gender**
Male	181
Female	583

**Ethnicity**
Non-Hispanic White	627
Black	99
Hispanic	0
Asian	0
Other	23
Native American	0

**Age**
From 65 to 74	386
From 75 to 84	268
85 and over	67
Less than 65	43

Conditions of Medicare patients treated by Dr. Ruth Sylvia Horowitz, MD in 2019

Hypertension	71
High Cholesterol	71
Stroke	5
Ischemic Heart Disease	35
Depression	24
Chronic Kidney Disease	39
Asthma	7
Osteoperosis	37
Atrial Fibrilation	10
Heart Failure	14
Chronic Obstructive Pulmonary Disease	8
Diabetes	50
Dementia	8
Cancer	11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Ruth Sylvia Horowitz, MD treated as an endocrinologist in Lutherville Timonium, MD during 2020 were lab tests, diabetes management, preventive care and thyroid function tests.

Volume of procedures performed by Dr. Ruth Sylvia Horowitz, MD for Medicare patients.

blood draw	298
diabetes management	643
doctor visit	1074
hospital care	73
inpatient care	73
lab tests	2005
musculoskeletal imaging	213
neck imaging	132
preventive care	592
thyroid function tests	441
ultrasound (sonogram)	132
vaccines	16
X-rays	213

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Ruth Sylvia Horowitz, MD.

**Gender**
Male	176
Female	642

**Ethnicity**
Non-Hispanic White	665
Black	109
Hispanic	0
Asian	0
Other	27
Native American	0

**Age**
From 65 to 74	417
From 75 to 84	282
85 and over	81
Less than 65	38

Conditions of Medicare patients treated by Dr. Ruth Sylvia Horowitz, MD in 2020

Hypertension	67
High Cholesterol	68
Stroke	5
Ischemic Heart Disease	31
Depression	23
Chronic Kidney Disease	37
Asthma	8
Osteoperosis	40
Atrial Fibrilation	11
Heart Failure	11
Chronic Obstructive Pulmonary Disease	8
Diabetes	46
Dementia	8
Cancer	12

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Ruth Sylvia Horowitz, MD treated as an endocrinologist in Lutherville Timonium, MD during 2021 were lab tests, diabetes management, preventive care and thyroid function tests.

Volume of procedures performed by Dr. Ruth Sylvia Horowitz, MD for Medicare patients.

blood draw	301
diabetes management	1064
doctor visit	1213
hospital care	75
inpatient care	75
lab tests	2506
musculoskeletal imaging	265
neck imaging	153
preventive care	787
thyroid function tests	442
ultrasound (sonogram)	153
X-rays	265

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Ruth Sylvia Horowitz, MD.

**Gender**
Male	196
Female	631

**Ethnicity**
Non-Hispanic White	682
Black	101
Hispanic	0
Asian	0
Other	29
Native American	0

**Age**
From 65 to 74	414
From 75 to 84	307
85 and over	67
Less than 65	39

Conditions of Medicare patients treated by Dr. Ruth Sylvia Horowitz, MD in 2021

Hypertension	69
High Cholesterol	71
Stroke	5
Ischemic Heart Disease	32
Depression	24
Chronic Kidney Disease	40
Asthma	8
Osteoperosis	38
Atrial Fibrilation	10
Heart Failure	10
Chronic Obstructive Pulmonary Disease	7
Diabetes	45
Dementia	7
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Ruth Sylvia Horowitz, MD treated as an endocrinologist in Lutherville Timonium, MD during 2022 were lab tests, diabetes management, preventive care and blood draw.

Volume of procedures performed by Dr. Ruth Sylvia Horowitz, MD for Medicare patients.

blood draw	565
diabetes management	1166
doctor visit	1235
hospital care	86
inpatient care	86
lab tests	1166
musculoskeletal imaging	269
neck imaging	145
preventive care	568
ultrasound (sonogram)	145
X-rays	269

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Ruth Sylvia Horowitz, MD.

**Gender**
Male	192
Female	667

**Ethnicity**
Non-Hispanic White	708
Black	106
Hispanic	0
Asian	0
Other	32
Native American	0

**Age**
From 65 to 74	397
From 75 to 84	343
85 and over	76
Less than 65	43

Conditions of Medicare patients treated by Dr. Ruth Sylvia Horowitz, MD in 2022

Hypertension	74
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	26
Depression	23
Chronic Kidney Disease	22
Asthma	11
Osteoperosis	45
Atrial Fibrilation	14
Heart Failure	9
Chronic Obstructive Pulmonary Disease	9
Diabetes	46
Dementia	5
Cancer	17

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Ruth Sylvia Horowitz, MD for Medicare patients.

The highest averages for the top procedures that Dr. Ruth Sylvia Horowitz, MD treated as an endocrinologist in Lutherville Timonium, MD were lab tests, preventive care, diabetes management and thyroid function tests.

aspiration	21
blood draw	509
diabetes management	819
diagnostic procedures	21
doctor visit	1164
hospital care	94
image guided procedures	21
inpatient care	94
lab tests	2600
minimally invasive procedures	21
minor procedures	21
musculoskeletal imaging	193
neck imaging	128
preventive care	1105
thyroid function tests	629
ultrasound (sonogram)	128
vaccines	20
X-rays	193

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Ruth Sylvia Horowitz, MD.

**Gender**
Male	173
Female	546

**Ethnicity**
Black / African American	101
Asian / Pacific Islander	0
Non-Hispanic White	587
Native American / Alaskan Native	0
Hispanic	0
Other	13

**Age**
75 to 84	234
85 and over	69
Less than 65	48
65 to 74	366

Average of Total of Conditions of Medicare patients treated by Dr. Ruth Sylvia Horowitz, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Ruth Sylvia Horowitz, MD treated were hypertension, high cholesterol, diabetes and osteoperosis.

Hypertension	63
High Cholesterol	61
Stroke	4
Ischemic Heart Disease	29
Depression	19
Chronic Kidney Disease	29
Asthma	8
Osteoporosis	31
Heart Failure	12
Chronic Obstructive Pulmonary Disease	8
Diabetes	45
Atrial Fibrillation	10
Dementia	6
Cancer	10

Education & Training

Dr. Ruth Sylvia Horowitz, MD graduated from University of Cincinnati College of Medicine. She completed residency at University of Maryland Medical Center. She is certified by the American Board of Internal Medicine - Endocrinology Diabetes and Metabolism and has a state license in Maryland.

Medical School: University of Cincinnati College of Medicine

Residency: University of Maryland Medical Center (1991)

Board Certification: American Board of Internal Medicine - Endocrinology Diabetes and Metabolism (1993)

Licensed In: Maryland

Affiliations & Hospitals

Dr. Ruth Sylvia Horowitz, MD is associated with these hospitals and organizations:

University of Maryland Medical System

GBMC Healthcare

PRIVIA MEDICAL GROUP LLC

Ratings & Reviews

Dr. Ruth Sylvia Horowitz, MD does not have any reviews yet, be the first to leave a review of Dr. Ruth Sylvia Horowitz, MD here: Leave a Review

(No ratings)

Leave a Review

General Payments

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

**Payments by Company**
Medtronic MiniMed, Inc.	$2,026 Minimed 530G $1,613	Minimed 670G System $170	iPro2 $124	Minimed 630G $39	MiniMed Connect $38	Other $42
Novo Nordisk Inc	$823 Victoza $176	Tresiba $154	Ozempic $138	RYBELSUS $114	Xultophy 100/3.6 $89	Other $151
Lilly USA, LLC	$624 TRULICITY $150	FORTEO $149	HUMULIN $106	MOUNJARO $53	BASAGLAR $45	Other $122
SANOFI-AVENTIS U.S. LLC	$587 TOUJEO $321	AFREZZA $133	SOLIQUA 100/33 $60	TZIELD $24	PRALUENT $24	Other $25
Amgen Inc.	$540 Prolia $369	Repatha $139	$33
Other	$5,860 Synthroid $396	Omnipod $244	AFREZZA $239	Tymlos $216	FARXIGA $211	Other $4,554

**Types of Payments**
Food and Beverage	$8,932
Travel and Lodging	$1,387
Education	$117
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$25

Biography

Dr. Ruth Horowitz is a medical specialist in adult endocrinology. Her education and training includes medical school at the University of Cincinnati College of Medicine and residency at the University of Maryland Medical Center. Her professional affiliations include the University of Maryland Medical System and GBMC Healthcare.