Physician Profile
Zachary T. Lonjers, MD
Unclaimed ProfileAbout Dr. Lonjers
Zachary T. Lonjers, MD practices pulmonary disease in Saint Louis, MO. Zachary is a 2015 graduate of Loyola University of Chicago, Stritch School of Medicine. Zachary is also listed as specializing in internal medicine and critical care medicine. Medicare claims data shows Zachary provided 841 services to 711 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, test to measure expiratory airflow and volume, and critical care, first 30-74 minutes. The provider's National Provider Identifier (NPI) is 1104205491.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
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
- (314) 454-8917
- Email not available
Practice Locations
1 BARNES JEWISH HOSPITAL PLZ DIV IM PULMONARY AND CRITICAL CARE MEDICINE
Saint Louis, MO 63110
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
841 services · 711 patients · 17 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Artery puncture collection of blood sample | Procedure | 36600 |
28 | As often as other peers in Pulmonary Disease |
| Test to measure expiratory airflow and volume | Treatment | 94010 |
130 | More often than most peers in Pulmonary Disease |
| Test for exercise-induced lung stress | Treatment | 94618 |
83 | More often than most peers in Pulmonary Disease |
| Test to examine how well the lungs exchange gases | Treatment | 94729 |
51 | As often as other peers in Pulmonary Disease |
| Test to determine lung volumes using sensors | Treatment | 94726 |
41 | As often as other peers in Pulmonary Disease |
| Test to measure expiratory airflow and volume changes before and after medication administration | Treatment | 94060 |
33 | Less often than most peers in Pulmonary Disease |
| Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | Treatment | 90677 |
14 | Less often than most peers in Pulmonary Disease |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
131 | As often as other peers in Pulmonary Disease |
| Critical care, first 30-74 minutes | Office visit | 99291 |
83 | As often as other peers in Pulmonary Disease |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
67 | 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.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
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 Saint Louis 8
Same specialty, same city.
Trained at Loyola University of Chicago, Stritch School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 15 related providers in 2 groups
Class of 2015 at Loyola University of Chicago, Stritch School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Artery puncture collection of blood sample 7
Providers in MO who bill this service to Medicare most often.
Common questions
What is Dr. Lonjers's specialty?
Dr. Lonjers is a lung specialist in Saint Louis, MO. 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 Dr. Lonjers?
Dr. Lonjers is listed at 1 Barnes Jewish Hospital Plz Div Im Pulmonary and Critical Care Medicine, Saint Louis, MO 63110. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Lonjers?
The number on file is (314) 454-8917. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Lonjers?
Dr. Lonjers's National Provider Identifier is 1104205491. 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 Dr. Lonjers's medical education?
Dr. Lonjers attended Loyola University of Chicago, Stritch School of Medicine, graduating in 2015. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Lonjers have?
Dr. Lonjers has 11 years experience. Calculated from a graduation year of 2015, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Lonjers known for?
According to Medicare billing data, Dr. Lonjers performs procedures including artery puncture collection of blood sample; provides treatments such as test to measure expiratory airflow and volume and test for exercise-induced lung stress, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Lonjers's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Lonjers. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.