Physician Profile
Audrey H. Liu, M.D.
Unclaimed ProfileAbout Dr. Liu
Audrey H. Liu, M.D. is a healthcare provider in Baltimore, MD specializing in pulmonary disease. Medicare claims data shows Audrey provided 2,204 services to 1,825 patients. The services billed most often include test to measure expiratory airflow and volume, test to examine how well the lungs exchange gases, and test to determine lung volumes using gas dilution or washout.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (410) 955-3467
- Email not available
Practice Locations
4940 EASTERN AVE
Baltimore, MD 21224
Conditions Commonly Evaluated or Treated
Within Pulmonary Disease generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Airway disorders
Blood vessel disorders
Critical care
Diagnostic findings
Environmental lung diseases
Genetic conditions
Infections
- Community-acquired pneumonia
- Fungal lung infection
- Legionnaires' Disease
- Lung abscess
- NTM lung infection
- Severe Pneumonia
- Tuberculosis
- Valley fever
- Walking Pneumonia in Children
- Whooping Cough
Inflammatory conditions
Lung growths
Occupational & environmental
Pleural disorders
Post-infection conditions
Sleep disorders
- Excessive daytime sleepiness
- Shallow Breathing In Sleep
- Snoring
- Upper Airway Resistance Syndrome
- Waking Up Gasping Or Choking
Structural lung conditions
Symptoms
- Blue Baby Syndrome
- Chest congestion
- Coughing up blood
- Low oxygen levels
- Rapid Breathing
- Severe asthma attack
- Wheezing
Procedures & services
Most searched procedures
Airway care
Airway management
Biopsies
Biopsies & diagnostics
Breathing tests
- 6-minute walk test
- Asthma challenge test
- Cardiopulmonary Exercise Testing (CPET)
- Exhaled nitric oxide test
Cancer diagnostic procedures
Consultations
Counseling & prevention
Critical care
Diagnostic procedures
Drainage care
Imaging
Interventional procedures
Lab tests
Lung tests
Medications
Monitoring
Pleural procedures
- Chest tube insertion
- Draining lung fluid
- Medical thoracoscopy
- Permanent chest drain insertion
- Pleural sealing procedure
Procedures
Rehabilitation
Screening
Sleep equipment
Sleep medicine
Sleep treatments
Specialist evaluations
Specialized testing
Treatments
Procedures Most Often Billed to Medicare
2,204 services · 1,825 patients · 18 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Test to measure expiratory airflow and volume | Treatment | 94010 |
270 | More than most peers in Pulmonary Disease |
| Test to examine how well the lungs exchange gases | Treatment | 94729 |
262 | More than most peers in Pulmonary Disease |
| Test to determine lung volumes using gas dilution or washout | Treatment | 94727 |
258 | More than most peers in Pulmonary Disease |
| Sleep study including heart rate, breathing, and sleep time | Treatment | 95800 |
222 | More than most peers in Pulmonary Disease |
| Test to measure expiratory airflow and volume | Treatment | 94010 |
208 | More than most peers in Pulmonary Disease |
| Test to examine how well the lungs exchange gases | Treatment | 94729 |
200 | More than most peers in Pulmonary Disease |
| Test to determine lung volumes using gas dilution or washout | Treatment | 94727 |
200 | More than most peers in Pulmonary Disease |
| Test to measure expiratory airflow and volume changes before and after medication administration | Treatment | 94060 |
14 | Less often than most peers in Pulmonary Disease |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
146 | More often than most peers in Pulmonary Disease |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
145 | More often than most peers in Pulmonary Disease |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other lung specialists at this location 1
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other lung specialists in Baltimore 7
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1999 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Test to measure expiratory airflow and volume 7
Providers in MD who bill this service to Medicare most often.
Common questions
What is Audrey H. Liu's specialty?
Audrey H. Liu is a lung specialist in Baltimore, MD. That is the designation recorded for this NPI in the federal registry, where it is listed as “Pulmonary Disease”.
NPI registry
Where can I find Audrey H. Liu?
Audrey H. Liu is listed at 4940 Eastern Ave, Baltimore, MD 21224. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Audrey H. Liu?
The number on file is (410) 955-3467. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Audrey H. Liu?
Audrey H. Liu's National Provider Identifier is 1750324935. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Audrey H. Liu's education?
Audrey H. Liu attended Other, graduating in 1999. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Audrey H. Liu have?
Audrey H. Liu has 27 years experience. Calculated from a graduation year of 1999, reported in the CMS National Downloadable File.
CMS public data
What is Audrey H. Liu known for?
According to Medicare billing data, Audrey H. Liu provides treatments such as test to measure expiratory airflow and volume and test to examine how well the lungs exchange gases, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Audrey H. Liu's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Audrey H. Liu. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.