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Dr. Audrey H. Liu, MD

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(Audrey H. Liu, M.D.)

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Specializes in: Pulmonology (Lung & Respiratory Disease) and General Practice

McGill University Faculty of Medicine

301 ST. PAUL PLACE
BALTIMORE, MD 21202

(410) 332-9732

Dr. Audrey H. Liu, MD is a pulmonologist in BALTIMORE, MD specializing in pulmonology (lung & respiratory disease) and general practice. She graduated from McGill University Faculty of Medicine. Dr. Audrey H. Liu, MD is affiliated with Mercy Hospital, The Lung Center at Mercy and ST PAUL PLACE SPECIALISTS INC.

Office Locations

301 ST. PAUL PLACE
BALTIMORE, MD 21202

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7602 Belair Road
Baltimore, MD 21236

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In The News

“Dr. Audrey Liu, a sleep specialist at Mercy Medical Center, talks about how to treat insomnia.”—"Insomnia hits most people at some point", Orlando Sentinel, March 2014

Noteworthy Medicare Patient Procedures Performed by Dr. Audrey H. Liu, MD in 2023

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

Top 5%

By Volume:

pulmonary function test

type 4 home sleep study

In 2023, Dr. Audrey H. Liu, MD performed more pulmonary function test (PFT), and type 4 home sleep study procedures for Medicare patients than 95% of providers in related specialties within Maryland.

Top 25%

By Affordability:

lung volume test

In 2012, Dr. Audrey H. Liu, MD had a list price for lung volume test that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Maryland. 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. Audrey H. Liu, MD treated as a pulmonologist in BALTIMORE, MD during 2012 were sleep study, airway management, hospital care and inpatient care.

Volume of procedures performed by Dr. Audrey H. Liu, MD for Medicare patients.

airway management	72
doctor visit	386
hospital care	57
inpatient care	57
sleep study	144

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Audrey H. Liu, MD treated as a pulmonologist in BALTIMORE, MD during 2013 were sleep study, hospital care, inpatient care and airway management.

Volume of procedures performed by Dr. Audrey H. Liu, MD for Medicare patients.

airway management	75
bronchoscopy	20
doctor visit	413
hospital care	90
inpatient care	90
sleep study	149

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Audrey H. Liu, MD.

**Gender**
Male	137
Female	246

**Ethnicity**
Non-Hispanic White	190
Black	180
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	163
From 75 to 84	101
85 and over	30
Less than 65	89

Conditions of Medicare patients treated by Dr. Audrey H. Liu, MD in 2013

Hypertension	75
High Cholesterol	69
Stroke	3
Ischemic Heart Disease	46
Depression	21
Chronic Kidney Disease	31
Asthma	23
Osteoperosis	6
Atrial Fibrilation	16
Heart Failure	32
Chronic Obstructive Pulmonary Disease	51
Diabetes	46
Dementia	7
Cancer	18

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Audrey H. Liu, MD treated as a pulmonologist in BALTIMORE, MD during 2014 were sleep study, airway management, hospital care and inpatient care.

Volume of procedures performed by Dr. Audrey H. Liu, MD for Medicare patients.

airway management	99
aspiration	12
bronchoscopy	12
diagnostic procedures	12
doctor visit	661
hospital care	70
inpatient care	70
minimally invasive procedures	12
minor procedures	12
sleep study	199

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Audrey H. Liu, MD.

**Gender**
Male	157
Female	324

**Ethnicity**
Non-Hispanic White	225
Black	243
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	209
From 75 to 84	114
85 and over	38
Less than 65	120

Conditions of Medicare patients treated by Dr. Audrey H. Liu, MD in 2014

Hypertension	75
High Cholesterol	67
Stroke	4
Ischemic Heart Disease	41
Depression	27
Chronic Kidney Disease	28
Asthma	27
Osteoperosis	6
Atrial Fibrilation	15
Heart Failure	31
Chronic Obstructive Pulmonary Disease	51
Diabetes	47
Dementia	5
Cancer	18

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Audrey H. Liu, MD treated as a pulmonologist in BALTIMORE, MD during 2015 were sleep study, airway management, bronchoscopy and minimally invasive procedures.

Volume of procedures performed by Dr. Audrey H. Liu, MD for Medicare patients.

airway management	79
aspiration	11
bronchoscopy	23
diagnostic procedures	11
doctor visit	742
hospital care	13
inpatient care	13
minimally invasive procedures	23
minor procedures	11
sleep study	163

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Audrey H. Liu, MD.

**Gender**
Male	372
Female	670

**Ethnicity**
Non-Hispanic White	516
Black	502
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	434
From 75 to 84	280
85 and over	76
Less than 65	252

Conditions of Medicare patients treated by Dr. Audrey H. Liu, MD in 2015

Hypertension	75
High Cholesterol	68
Stroke	5
Ischemic Heart Disease	41
Depression	24
Chronic Kidney Disease	30
Asthma	37
Osteoperosis	6
Atrial Fibrilation	16
Heart Failure	31
Chronic Obstructive Pulmonary Disease	50
Diabetes	44
Dementia	8
Cancer	17

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Audrey H. Liu, MD treated as a pulmonologist in BALTIMORE, MD during 2016 were sleep study, airway management, hospital care and inpatient care.

Volume of procedures performed by Dr. Audrey H. Liu, MD for Medicare patients.

airway management	81
bronchoscopy	11
doctor visit	753
hospital care	41
inpatient care	41
sleep study	178

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Audrey H. Liu, MD.

**Gender**
Male	184
Female	331

**Ethnicity**
Non-Hispanic White	0
Black	254
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	227
From 75 to 84	117
85 and over	34
Less than 65	137

Conditions of Medicare patients treated by Dr. Audrey H. Liu, MD in 2016

Hypertension	75
High Cholesterol	64
Stroke	6
Ischemic Heart Disease	43
Depression	25
Chronic Kidney Disease	39
Asthma	57
Osteoperosis	7
Atrial Fibrilation	16
Heart Failure	29
Chronic Obstructive Pulmonary Disease	50
Diabetes	45
Dementia	7
Cancer	16

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Audrey H. Liu, MD treated as a pulmonologist in BALTIMORE, MD during 2017 were sleep study, airway management, hospital care and inpatient care.

Volume of procedures performed by Dr. Audrey H. Liu, MD for Medicare patients.

airway management	65
bronchoscopy	12
doctor visit	740
hospital care	38
inpatient care	38
minimally invasive procedures	12
sleep study	140

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Audrey H. Liu, MD.

**Gender**
Male	166
Female	319

**Ethnicity**
Non-Hispanic White	217
Black	251
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	203
From 75 to 84	123
85 and over	37
Less than 65	122

Conditions of Medicare patients treated by Dr. Audrey H. Liu, MD in 2017

Hypertension	75
High Cholesterol	61
Stroke	6
Ischemic Heart Disease	44
Depression	24
Chronic Kidney Disease	38
Asthma	25
Osteoperosis	6
Atrial Fibrilation	13
Heart Failure	26
Chronic Obstructive Pulmonary Disease	51
Diabetes	43
Dementia	7
Cancer	17

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Audrey H. Liu, MD treated as a pulmonologist in BALTIMORE, MD during 2018 were sleep study, airway management, hospital care and inpatient care.

Volume of procedures performed by Dr. Audrey H. Liu, MD for Medicare patients.

airway management	77
doctor visit	733
hospital care	18
inpatient care	18
sleep study	154

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Audrey H. Liu, MD.

**Gender**
Male	154
Female	324

**Ethnicity**
Non-Hispanic White	206
Black	252
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	214
From 75 to 84	115
85 and over	26
Less than 65	123

Conditions of Medicare patients treated by Dr. Audrey H. Liu, MD in 2018

Hypertension	75
High Cholesterol	69
Stroke	6
Ischemic Heart Disease	40
Depression	27
Chronic Kidney Disease	37
Asthma	24
Osteoperosis	8
Atrial Fibrilation	11
Heart Failure	26
Chronic Obstructive Pulmonary Disease	46
Diabetes	43
Dementia	9
Cancer	19

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Audrey H. Liu, MD treated as a pulmonologist in BALTIMORE, MD during 2019 were sleep study, airway management, hospital care and inpatient care.

Volume of procedures performed by Dr. Audrey H. Liu, MD for Medicare patients.

airway management	56
doctor visit	688
hospital care	15
inpatient care	15
sleep study	130

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Audrey H. Liu, MD.

**Gender**
Male	157
Female	325

**Ethnicity**
Non-Hispanic White	209
Black	260
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	221
From 75 to 84	123
85 and over	23
Less than 65	115

Conditions of Medicare patients treated by Dr. Audrey H. Liu, MD in 2019

Hypertension	75
High Cholesterol	69
Stroke	6
Ischemic Heart Disease	40
Depression	32
Chronic Kidney Disease	38
Asthma	24
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	27
Chronic Obstructive Pulmonary Disease	48
Diabetes	44
Dementia	7
Cancer	18

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Audrey H. Liu, MD treated as a pulmonologist in BALTIMORE, MD during 2020 were sleep study and airway management.

Volume of procedures performed by Dr. Audrey H. Liu, MD for Medicare patients.

airway management	34
doctor visit	555
sleep study	82

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Audrey H. Liu, MD.

**Gender**
Male	140
Female	276

**Ethnicity**
Non-Hispanic White	188
Black	216
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	186
From 75 to 84	103
85 and over	23
Less than 65	104

Conditions of Medicare patients treated by Dr. Audrey H. Liu, MD in 2020

Hypertension	75
High Cholesterol	63
Stroke	5
Ischemic Heart Disease	40
Depression	30
Chronic Kidney Disease	35
Asthma	25
Osteoperosis	7
Atrial Fibrilation	12
Heart Failure	22
Chronic Obstructive Pulmonary Disease	41
Diabetes	44
Dementia	6
Cancer	17

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Audrey H. Liu, MD treated as a pulmonologist in BALTIMORE, MD during 2021 were pulmonary testing, sleep study and airway management.

Volume of procedures performed by Dr. Audrey H. Liu, MD for Medicare patients.

airway management	28
doctor visit	627
pulmonary testing	367
sleep study	99

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Audrey H. Liu, MD.

**Gender**
Male	187
Female	325

**Ethnicity**
Non-Hispanic White	272
Black	218
Hispanic	0
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	244
From 75 to 84	142
85 and over	26
Less than 65	100

Conditions of Medicare patients treated by Dr. Audrey H. Liu, MD in 2021

Hypertension	75
High Cholesterol	67
Stroke	4
Ischemic Heart Disease	38
Depression	27
Chronic Kidney Disease	32
Asthma	23
Osteoperosis	6
Atrial Fibrilation	12
Heart Failure	21
Chronic Obstructive Pulmonary Disease	43
Diabetes	41
Dementia	6
Cancer	17

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Audrey H. Liu, MD treated as a pulmonologist in BALTIMORE, MD during 2022 were pulmonary testing, sleep study and airway management.

Volume of procedures performed by Dr. Audrey H. Liu, MD for Medicare patients.

airway management	29
doctor visit	649
pulmonary testing	609
sleep study	125

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Audrey H. Liu, MD.

**Gender**
Male	193
Female	334

**Ethnicity**
Non-Hispanic White	296
Black	206
Hispanic	0
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	277
From 75 to 84	148
85 and over	28
Less than 65	74

Conditions of Medicare patients treated by Dr. Audrey H. Liu, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	32
Depression	27
Chronic Kidney Disease	22
Asthma	28
Osteoperosis	9
Atrial Fibrilation	18
Heart Failure	17
Chronic Obstructive Pulmonary Disease	46
Diabetes	39
Dementia	4
Cancer	22

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Audrey H. Liu, MD for Medicare patients.

The highest averages for the top procedures that Dr. Audrey H. Liu, MD treated as a pulmonologist in BALTIMORE, MD were pulmonary testing, sleep study, airway management and hospital care.

airway management	63
aspiration	11
bronchoscopy	15
diagnostic procedures	11
doctor visit	631
hospital care	42
inpatient care	42
minimally invasive procedures	15
minor procedures	11
pulmonary testing	488
sleep study	142

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Audrey H. Liu, MD.

**Gender**
Male	167
Female	315

**Ethnicity**
Black / African American	234
Asian / Pacific Islander	0
Non-Hispanic White	210
Hispanic	0
Native American / Alaskan Native	0
Other	2

**Age**
75 to 84	124
85 and over	31
Less than 65	112
65 to 74	216

Average of Total of Conditions of Medicare patients treated by Dr. Audrey H. Liu, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Audrey H. Liu, MD treated were hypertension, high cholesterol, chronic obstructive pulmonary disease and diabetes.

Hypertension	68
High Cholesterol	61
Stroke	5
Ischemic Heart Disease	36
Depression	24
Chronic Kidney Disease	30
Asthma	26
Osteoporosis	6
Heart Failure	23
Chronic Obstructive Pulmonary Disease	43
Diabetes	39
Atrial Fibrillation	12
Cancer	16
Dementia	6

Education & Training

Dr. Audrey H. Liu, MD graduated from McGill University Faculty of Medicine. She completed residency at Johns Hopkins Bayview Medical Center. She has a state license in Maryland.

Medical School: McGill University Faculty of Medicine

Residency: Johns Hopkins Bayview Medical Center

Licensed In: Maryland

Affiliations & Hospitals

Dr. Audrey H. Liu, MD is associated with these hospitals and organizations:

Mercy Hospital

The Lung Center at Mercy

ST PAUL PLACE SPECIALISTS INC

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General Payments

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

**Payments by Company**
Janssen Pharmaceuticals, Inc	$226 XARELTO $93	INVEGA $74	INVOKANA $60
Edwards Lifesciences Corporation	$125 Transcatheter Heart Valves $125
Boehringer Ingelheim Pharmaceuticals, Inc.	$96 STIOLTO $79	SPIRIVA RESPIMAT $17
E.R. Squibb & Sons, L.L.C.	$53 OPDIVO $53
GlaxoSmithKline, LLC.	$26 SHINGRIX $13	ANORO $12
Other	$39 Repatha $21	ENTRESTO $18

**Types of Payments**
Food and Beverage	$485
Education	$79

Biography

Dr. Audrey Liu specializes in general practice and pulmonology (lung & respiratory disease). Her education and training includes medical school at McGill University Faculty of Medicine and residency at Johns Hopkins Bayview Medical Center. She is conversant in Mandarin. Dr. Liu is affiliated with Mercy Hospital. According to Yext, she is currently accepting new patients at her office in BALTIMORE, MD.