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

Home > TX Providers > Hospitalists

Dr. Aleksandr Korniyenko, MD

Specializes in: Hospital Medicine (Hospitalist) and Adult Cardiology

Ross University School of Medicine

11937 Us Highway 271
Tyler, TX 75708

(903) 877-7000

Dr. Aleksandr Korniyenko, MD is a hospitalist in Tyler, TX specializing in hospital medicine (hospitalist) and adult cardiology. He graduated from Ross University School of Medicine. Dr. Aleksandr Korniyenko, MD is affiliated with UTHealth East Texas and American College of Physicians.

Office Locations

2608 McDonald Road
Tyler, TX 75701

open_in_new

409 W. Cottage Road
Carthage, TX 75633

open_in_new

American College of Physicians

1000 S. Beckham Avenue
Tyler, TX 75701

(903) 597-0351

open_in_new

American College of Physicians

117 N. Winnsboro Street
Quitman, TX 75783

(903) 763-6300

(903) 763-6100

open_in_new

American College of Physicians

11937 Us Highway 271
Tyler, TX 75708

(903) 877-7000

open_in_new

American College of Physicians

2000 S. Palestine Street
Athens, TX 75751

(903) 676-1000

(903) 676-3337

open_in_new

American College of Physicians

2208 Three Lakes Parkway Suite 101
Tyler, TX 75703

(903) 594-2171

open_in_new

2408 W. Main Street
Gun Barrel City, TX 75156

open_in_new

American College of Physicians

2701 Highway 271 N.
Pittsburg, TX 75686

(903) 946-5000

(903) 946-5598

open_in_new

American College of Physicians

300 Wilson Street
Henderson, TX 75652

(903) 657-7541

(903) 655-3931

open_in_new

American College of Physicians

501 S. Ragsdale Street
Jacksonville, TX 75766

(903) 541-5000

(903) 541-5088

open_in_new

American College of Physicians

701 Olympic Plaza Circle
Tyler, TX 75701

(903) 596-3000

(903) 596-3006

open_in_new

702 N Davis Street
Carthage, TX 75633

open_in_new

Noteworthy Medicare Patient Procedures Performed by Dr. Aleksandr Korniyenko, MD in 2023

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

Top 5%

By Volume:

cardiac procedures

Doppler echocardiography

lower extremity venous duplex

ultrasound

vascular procedures

vascular ultrasound

In 2023, Dr. Aleksandr Korniyenko, MD performed more cardiac procedures, Doppler echocardiography, lower extremity venous duplex, ultrasound (sonogram), vascular procedures, and vascular ultrasound procedures for Medicare patients than 95% of providers in related specialties within Texas.

Top 10%

By Volume:

carotid duplex ultrasound

lower extremity arterial duplex

myocardial perfusion SPECT

nuclear scan

By Affordability:

abdominal duplex ultrasound

ankle brachial index

arterial duplex ultrasound

arterial ultrasound

cardiac MRI

carotid duplex ultrasound

carotid ultrasound

duplex ultrasound

lower extremity arterial duplex

lower extremity arterial ultrasound

lower extremity venous ultrasound

lower extremity venous duplex

MRI

pelvic duplex ultrasound

testicular duplex ultrasound

vascular physiologic studies

vascular studies

vascular ultrasound

venous duplex ultrasound

venous ultrasound

In 2023, among providers in related specialties within Texas, Dr. Aleksandr Korniyenko, MD performed more carotid duplex ultrasound, lower extremity arterial duplex, myocardial perfusion SPECT, and nuclear scan procedures for Medicare patients than 90% of them and he also had a list price for abdominal duplex ultrasound, ankle brachial index (ABI), arterial duplex ultrasound, arterial ultrasound, cardiac (heart) MRI, carotid duplex ultrasound, carotid ultrasound, duplex ultrasound, lower extremity arterial duplex, lower extremity (leg) arterial ultrasound, lower extremity (leg) venous ultrasound, lower extremity venous duplex, MRI (magnetic resonance imaging), pelvic duplex ultrasound, testicular duplex ultrasound, vascular physiologic studies, vascular studies, vascular ultrasound, venous duplex ultrasound, and venous ultrasound 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:

cardiac stress testing

coronary angiogram

inpatient hospital care

left heart catheterization

minimally invasive procedures

By Affordability:

echocardiogram

transthoracic echocardiography

In 2012, among providers in related specialties within Texas, Dr. Aleksandr Korniyenko, MD performed more cardiac (heart) stress testing, coronary angiogram, inpatient hospital care (for patient admitted to hospital), left heart catheterization, and minimally invasive procedures procedures for Medicare patients than 75% of them and he also had a list price for echocardiogram (echo), and transthoracic echocardiography (TTE) 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. Aleksandr Korniyenko, MD treated as a hospitalist in Tyler, TX during 2012 were hospital care, inpatient care and outpatient care.

Volume of procedures performed by Dr. Aleksandr Korniyenko, MD for Medicare patients.

hospital care	619
inpatient care	605
outpatient care	14

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Aleksandr Korniyenko, MD treated as a hospitalist in Tyler, TX during 2013 were hospital care, inpatient care and outpatient care.

Volume of procedures performed by Dr. Aleksandr Korniyenko, MD for Medicare patients.

hospital care	476
inpatient care	437
outpatient care	39

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Aleksandr Korniyenko, MD.

**Gender**
Male	136
Female	190

**Ethnicity**
Non-Hispanic White	282
Black	0
Hispanic	19
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	57
From 75 to 84	101
85 and over	116
Less than 65	52

Conditions of Medicare patients treated by Dr. Aleksandr Korniyenko, MD in 2013

Hypertension	75
High Cholesterol	66
Stroke	15
Ischemic Heart Disease	66
Depression	38
Chronic Kidney Disease	59
Asthma	20
Osteoperosis	15
Atrial Fibrilation	31
Heart Failure	51
Chronic Obstructive Pulmonary Disease	32
Diabetes	44
Dementia	34
Cancer	19

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Aleksandr Korniyenko, MD treated as a hospitalist in Tyler, TX during 2014 were hospital care, inpatient care and outpatient care.

Volume of procedures performed by Dr. Aleksandr Korniyenko, MD for Medicare patients.

hospital care	543
inpatient care	484
outpatient care	59

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Aleksandr Korniyenko, MD.

**Gender**
Male	154
Female	262

**Ethnicity**
Non-Hispanic White	360
Black	0
Hispanic	25
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	92
From 75 to 84	103
85 and over	153
Less than 65	68

Conditions of Medicare patients treated by Dr. Aleksandr Korniyenko, MD in 2014

Hypertension	75
High Cholesterol	64
Stroke	13
Ischemic Heart Disease	69
Depression	45
Chronic Kidney Disease	60
Asthma	20
Osteoperosis	12
Atrial Fibrilation	31
Heart Failure	54
Chronic Obstructive Pulmonary Disease	34
Diabetes	41
Dementia	34
Cancer	13

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Aleksandr Korniyenko, MD treated as a hospitalist in Tyler, TX during 2015 were hospital care, inpatient care, cardiac procedures and ultrasound (sonogram).

Volume of procedures performed by Dr. Aleksandr Korniyenko, MD for Medicare patients.

cardiac procedures	543
cardioversion	15
catheterization	33
diagnostic procedures	33
doctor visit	343
hospital care	792
implant surgery	14
inpatient care	716
lab tests	86
minimally invasive procedures	68
nuclear scan	111
outpatient care	76
stress testing	244
ultrasound (sonogram)	304
vascular procedures	85

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Aleksandr Korniyenko, MD.

**Gender**
Male	1000
Female	1078

**Ethnicity**
Non-Hispanic White	1772
Black	200
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	656
From 75 to 84	736
85 and over	430
Less than 65	256

Conditions of Medicare patients treated by Dr. Aleksandr Korniyenko, MD in 2015

Hypertension	75
High Cholesterol	70
Stroke	14
Ischemic Heart Disease	70
Depression	32
Chronic Kidney Disease	41
Asthma	23
Osteoperosis	10
Atrial Fibrilation	32
Heart Failure	47
Chronic Obstructive Pulmonary Disease	31
Diabetes	43
Dementia	20
Cancer	13

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Aleksandr Korniyenko, MD treated as a hospitalist in Tyler, TX during 2016 were cardiac procedures, hospital care, inpatient care and ultrasound (sonogram).

Volume of procedures performed by Dr. Aleksandr Korniyenko, MD for Medicare patients.

ambulatory monitoring	12
blood draw	28
cardiac procedures	1408
cardioversion	30
catheterization	88
diagnostic procedures	88
doctor visit	1162
hospital care	1276
implant surgery	20
inpatient care	1223
lab tests	163
minimally invasive procedures	181
nuclear scan	282
outpatient care	53
stress testing	534
ultrasound (sonogram)	984
vascular procedures	318

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Aleksandr Korniyenko, MD.

**Gender**
Male	1051
Female	1143

**Ethnicity**
Non-Hispanic White	1897
Black	227
Hispanic	50
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	856
From 75 to 84	695
85 and over	343
Less than 65	300

Conditions of Medicare patients treated by Dr. Aleksandr Korniyenko, MD in 2016

Hypertension	75
High Cholesterol	72
Stroke	13
Ischemic Heart Disease	68
Depression	29
Chronic Kidney Disease	47
Asthma	37
Osteoperosis	10
Atrial Fibrilation	30
Heart Failure	45
Chronic Obstructive Pulmonary Disease	37
Diabetes	43
Dementia	21
Cancer	13

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Aleksandr Korniyenko, MD treated as a hospitalist in Tyler, TX during 2017 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Aleksandr Korniyenko, MD for Medicare patients.

ambulatory monitoring	19
blood draw	28
cardiac procedures	1383
cardioversion	24
catheterization	102
diagnostic procedures	102
doctor visit	1481
hospital care	1136
implant surgery	21
inpatient care	1097
lab tests	181
minimally invasive procedures	177
MRI (magnetic resonance imaging)	14
nuclear scan	216
outpatient care	39
stress testing	426
ultrasound (sonogram)	1159
vascular procedures	460

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Aleksandr Korniyenko, MD.

**Gender**
Male	1251
Female	1334

**Ethnicity**
Non-Hispanic White	2163
Black	315
Hispanic	80
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	1083
From 75 to 84	820
85 and over	338
Less than 65	344

Conditions of Medicare patients treated by Dr. Aleksandr Korniyenko, MD in 2017

Hypertension	75
High Cholesterol	68
Stroke	12
Ischemic Heart Disease	64
Depression	29
Chronic Kidney Disease	45
Asthma	7
Osteoperosis	8
Atrial Fibrilation	28
Heart Failure	43
Chronic Obstructive Pulmonary Disease	31
Diabetes	42
Dementia	19
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Aleksandr Korniyenko, MD treated as a hospitalist in Tyler, TX during 2018 were cardiac procedures, hospital care, ultrasound (sonogram) and inpatient care.

Volume of procedures performed by Dr. Aleksandr Korniyenko, MD for Medicare patients.

ambulatory monitoring	30
blood draw	24
cardiac procedures	1346
cardioversion	24
catheterization	71
diagnostic procedures	71
doctor visit	1410
hospital care	1323
implant surgery	19
inpatient care	1281
lab tests	68
minimally invasive procedures	167
nuclear scan	178
outpatient care	42
stress testing	286
ultrasound (sonogram)	1318
vascular procedures	449

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Aleksandr Korniyenko, MD.

**Gender**
Male	1161
Female	1237

**Ethnicity**
Non-Hispanic White	2024
Black	277
Hispanic	67
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	928
From 75 to 84	787
85 and over	338
Less than 65	345

Conditions of Medicare patients treated by Dr. Aleksandr Korniyenko, MD in 2018

Hypertension	75
High Cholesterol	72
Stroke	12
Ischemic Heart Disease	63
Depression	30
Chronic Kidney Disease	47
Asthma	6
Osteoperosis	7
Atrial Fibrilation	29
Heart Failure	45
Chronic Obstructive Pulmonary Disease	36
Diabetes	43
Dementia	22
Cancer	13

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Aleksandr Korniyenko, MD treated as a hospitalist in Tyler, TX during 2019 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Aleksandr Korniyenko, MD for Medicare patients.

abdominal imaging	20
ambulatory monitoring	29
blood draw	55
cardiac procedures	1411
cardioversion	33
catheterization	99
diagnostic procedures	99
doctor visit	1582
hospital care	1153
implant surgery	19
inpatient care	1135
lab tests	133
minimally invasive procedures	193
nuclear scan	190
outpatient care	18
pelvic imaging	20
stress testing	351
ultrasound (sonogram)	1395
vascular procedures	581

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Aleksandr Korniyenko, MD.

**Gender**
Male	1255
Female	1256

**Ethnicity**
Non-Hispanic White	2141
Black	263
Hispanic	68
Asian	0
Other	23
Native American	0

**Age**
From 65 to 74	972
From 75 to 84	842
85 and over	371
Less than 65	326

Conditions of Medicare patients treated by Dr. Aleksandr Korniyenko, MD in 2019

Hypertension	75
High Cholesterol	74
Stroke	11
Ischemic Heart Disease	65
Depression	29
Chronic Kidney Disease	47
Asthma	6
Osteoperosis	7
Atrial Fibrilation	27
Heart Failure	44
Chronic Obstructive Pulmonary Disease	33
Diabetes	43
Dementia	20
Cancer	14

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Aleksandr Korniyenko, MD treated as a hospitalist in Tyler, TX during 2020 were cardiac procedures, ultrasound (sonogram), inpatient care and hospital care.

Volume of procedures performed by Dr. Aleksandr Korniyenko, MD for Medicare patients.

abdominal imaging	19
ambulatory monitoring	31
blood draw	32
cardiac procedures	1290
cardioversion	32
catheterization	81
diagnostic procedures	81
doctor visit	1228
hospital care	943
implant surgery	25
inpatient care	943
lab tests	94
minimally invasive procedures	153
MRI (magnetic resonance imaging)	13
nuclear scan	182
pelvic imaging	19
stress testing	351
ultrasound (sonogram)	1220
vascular procedures	512

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Aleksandr Korniyenko, MD.

**Gender**
Male	1338
Female	1371

**Ethnicity**
Non-Hispanic White	2311
Black	280
Hispanic	77
Asian	0
Other	24
Native American	0

**Age**
From 65 to 74	1101
From 75 to 84	904
85 and over	381
Less than 65	323

Conditions of Medicare patients treated by Dr. Aleksandr Korniyenko, MD in 2020

Hypertension	75
High Cholesterol	72
Stroke	10
Ischemic Heart Disease	63
Depression	30
Chronic Kidney Disease	48
Asthma	6
Osteoperosis	8
Atrial Fibrilation	27
Heart Failure	42
Chronic Obstructive Pulmonary Disease	32
Diabetes	44
Dementia	21
Cancer	14

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Aleksandr Korniyenko, MD treated as a hospitalist in Tyler, TX during 2021 were ultrasound (sonogram), cardiac procedures, inpatient care and hospital care.

Volume of procedures performed by Dr. Aleksandr Korniyenko, MD for Medicare patients.

blood draw	19
cardiac procedures	1157
cardioversion	29
catheterization	87
diagnostic procedures	87
doctor visit	1350
hospital care	969
implant surgery	26
inpatient care	969
lab tests	88
minimally invasive procedures	165
MRI (magnetic resonance imaging)	15
nuclear scan	161
stress testing	247
ultrasound (sonogram)	1521
vascular procedures	838

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Aleksandr Korniyenko, MD.

**Gender**
Male	1183
Female	1174

**Ethnicity**
Non-Hispanic White	2057
Black	188
Hispanic	63
Asian	0
Other	31
Native American	0

**Age**
From 65 to 74	1011
From 75 to 84	811
85 and over	306
Less than 65	229

Conditions of Medicare patients treated by Dr. Aleksandr Korniyenko, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	63
Depression	28
Chronic Kidney Disease	48
Asthma	7
Osteoperosis	9
Atrial Fibrilation	26
Heart Failure	41
Chronic Obstructive Pulmonary Disease	29
Diabetes	43
Dementia	18
Cancer	13

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Aleksandr Korniyenko, MD treated as a hospitalist in Tyler, TX during 2022 were cardiac procedures, ultrasound (sonogram), inpatient care and hospital care.

Volume of procedures performed by Dr. Aleksandr Korniyenko, MD for Medicare patients.

abdominal imaging	15
ambulatory monitoring	51
blood draw	31
cardiac procedures	1361
cardioversion	13
catheterization	78
diagnostic procedures	78
doctor visit	1456
hospital care	541
implant surgery	14
inpatient care	541
lab tests	63
minimally invasive procedures	136
MRI (magnetic resonance imaging)	11
nuclear scan	181
pelvic imaging	15
stress testing	307
ultrasound (sonogram)	1338
vascular procedures	539

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Aleksandr Korniyenko, MD.

**Gender**
Male	1109
Female	1110

**Ethnicity**
Non-Hispanic White	1954
Black	170
Hispanic	52
Asian	0
Other	28
Native American	0

**Age**
From 65 to 74	938
From 75 to 84	801
85 and over	294
Less than 65	186

Conditions of Medicare patients treated by Dr. Aleksandr Korniyenko, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	16
Ischemic Heart Disease	52
Depression	26
Chronic Kidney Disease	31
Asthma	11
Osteoperosis	14
Atrial Fibrilation	35
Heart Failure	36
Chronic Obstructive Pulmonary Disease	31
Diabetes	42
Dementia	13
Cancer	19

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Aleksandr Korniyenko, MD for Medicare patients.

The highest averages for the top procedures that Dr. Aleksandr Korniyenko, MD treated as a hospitalist in Tyler, TX were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

abdominal imaging	18
ambulatory monitoring	28
blood draw	31
cardiac procedures	1237
cardioversion	25
catheterization	79
diagnostic procedures	79
doctor visit	1251
hospital care	888
implant surgery	19
inpatient care	857
lab tests	109
minimally invasive procedures	155
MRI (magnetic resonance imaging)	13
nuclear scan	187
outpatient care	42
pelvic imaging	18
stress testing	343
ultrasound (sonogram)	1154
vascular procedures	472

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Aleksandr Korniyenko, MD.

**Gender**
Female	923
Male	876

**Ethnicity**
Black / African American	174
Asian / Pacific Islander	0
Non-Hispanic White	1541
Hispanic	45
Native American / Alaskan Native	0
Other	9

**Age**
85 and over	279
75 to 84	600
Less than 65	220
65 to 74	699

Average of Total of Conditions of Medicare patients treated by Dr. Aleksandr Korniyenko, MD From 2012 - 2022

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

Hypertension	68
High Cholesterol	64
Stroke	11
Ischemic Heart Disease	58
Depression	28
Chronic Kidney Disease	43
Asthma	13
Osteoporosis	9
Heart Failure	40
Chronic Obstructive Pulmonary Disease	29
Diabetes	38
Atrial Fibrillation	26
Dementia	20
Cancer	13

Education & Training

Dr. Aleksandr Korniyenko, MD graduated from Ross University School of Medicine. He has a state license in Connecticut.

Medical School: Ross University School of Medicine

Licensed In: Connecticut

Affiliations & Hospitals

Dr. Aleksandr Korniyenko, MD is associated with these hospitals and organizations:

UTHealth East Texas

American College of Physicians

Ratings & Reviews

Dr. Aleksandr Korniyenko, MD has an exceptional overall rating with an average of 4.7 out of 5 stars based on 1390 ratings. We collect ratings and reviews of Dr. Aleksandr Korniyenko, MD from all over the web to help you find the right in Tyler, TX.

4.7

Overall Rating

(1390 Ratings)

Leave a Review

Reviews From Around The Web

Overall Rating: 5.0 2026-02-21

Patient verified via Press Ganey

Dr was totally familiar with all the concerns I had regarding treatment and meds.

Overall Rating: 5.0 2025-12-17

Patient verified via Press Ganey

Dr. K is very blunt and to the point, which is very much appreciated.

Overall Rating: 5.0 2026-03-06

Patient verified via Press Ganey

I really like this physician

General Payments

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

**Payments by Company**
AstraZeneca Pharmaceuticals LP	$2,608 BRILINTA $2,062	FARXIGA $475	BYDUREON WEEKLY $30	BYDUREON PEN $15	ONGLYZA $14	Other $12
Novartis Pharmaceuticals Corporation	$2,330 ENTRESTO $1,807	LEQVIO $523
Janssen Pharmaceuticals, Inc	$2,193 XARELTO $2,193
Amgen Inc.	$1,500 Repatha $1,500
E.R. Squibb & Sons, L.L.C.	$1,410 ELIQUIS $1,294	CAMZYOS $93	$24
Other	$6,760 LifeVest $623	Vascepa $475	ELIQUIS $466	VERQUVO $428	PRALUENT $318	Other $4,451

**Types of Payments**
Food and Beverage	$16,548
Education	$252

Research Payments

Dr. Aleksandr Korniyenko, MD has received 1 research payments totaling $15,900.

Biography

Dr. Aleksandr Korniyenko is an adult cardiology and hospital medicine (hospitalist) specialist. He is professionally affiliated with UTHealth East Texas. He graduated from Ross University School of Medicine. The average patient rating for Dr. Korniyenko is 4.5 stars (out of 5). Doctor.com reports that Dr. Korniyenko is closed to new patients at this time.