Physician Profile
William N. Checkley, MD PHD practices pulmonary disease in Baltimore, MD. William is a 2003 graduate of Northwestern University Feinberg Medical School. According to Medicare claims data, William cared for 518 Medicare patients across 645 services. The services billed most often include test to examine how well the lungs exchange gases, test to measure expiratory airflow and volume, and critical care, first 30-74 minutes.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
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.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
1830 E MONUMENT ST FIFTH FLOOR
Baltimore, MD 21205
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.
Most searched conditions
Airway disorders
Blood vessel disorders
Critical care
Diagnostic findings
Environmental lung diseases
Genetic conditions
Infections
Inflammatory conditions
Lung growths
Occupational & environmental
Pleural disorders
Post-infection conditions
Sleep disorders
Structural lung conditions
Symptoms
Most searched procedures
Airway care
Airway management
Biopsies
Biopsies & diagnostics
Breathing tests
Cancer diagnostic procedures
Consultations
Counseling & prevention
Critical care
Diagnostic procedures
Drainage care
Imaging
Interventional procedures
Lab tests
Lung tests
Medications
Monitoring
Pleural procedures
Procedures
Rehabilitation
Screening
Sleep equipment
Sleep medicine
Sleep treatments
Specialist evaluations
Specialized testing
Treatments
645 services · 518 patients · 11 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Test to examine how well the lungs exchange gases | Treatment | 94729 |
128 | More often than most peers in Pulmonary Disease |
| Test to measure expiratory airflow and volume | Treatment | 94010 |
126 | More often than most peers in Pulmonary Disease |
| Test to measure expiratory airflow and volume | Treatment | 94010 |
91 | More often than most peers in Pulmonary Disease |
| Test to determine lung volumes using sensors | Treatment | 94726 |
50 | As often as other peers in Pulmonary Disease |
| Test to determine lung volumes using gas dilution or washout | Treatment | 94727 |
36 | As often as other peers in Pulmonary Disease |
| Test to examine how well the lungs exchange gases | Treatment | 94729 |
20 | More often than most peers in Pulmonary Disease |
| Test for exercise-induced lung stress | Treatment | 94618 |
20 | |
| Test to determine lung volumes using gas dilution or washout | Treatment | 94727 |
19 | As often as other peers in Pulmonary Disease |
| Test to measure expiratory airflow and volume changes before and after medication administration | Treatment | 94060 |
13 | |
| Critical care, first 30-74 minutes | Office visit | 99291 |
94 | As often as other peers in Pulmonary Disease |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Checkley 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
Dr. Checkley is listed at 1830 E Monument St Fifth Floor, Baltimore, MD 21205. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (410) 955-3467. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Checkley's National Provider Identifier is 1346386760. 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
Dr. Checkley attended Northwestern University Feinberg Medical School, graduating in 2003. This comes from the CMS National Downloadable File.
CMS public data
Dr. Checkley has 23 years experience. Calculated from a graduation year of 2003, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Checkley provides treatments such as test to examine how well the lungs exchange gases and test to measure expiratory airflow and volume, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Checkley. 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.