Physician Profile
Unclaimed ProfileAbout CHEN
Based in Saint Louis, MO, Alexander Chi Chen, MD is listed in the NPI registry under pulmonary disease. Alexander graduated from University of Missouri, Kansas City, School of Medicine in 2001. Medicare claims data shows Alexander provided 352 services to 310 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (314) 454-8917
- Email not available
Practice Locations
4921 PARKVIEW PL DIV IM PULMONARY AND CCM, STE 8B
Saint Louis, MO 63110
Procedures Most Often Billed to Medicare
352 services · 310 patients · 10 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Exam of lung airways with diagnostic or therapeutic procedure on growths using an endoscope and ultrasound | Procedure | 31654 |
44 |
| Needle biopsy of windpipe cartilage, airway, and/or lung using an endoscope | Procedure | 31629 |
44 |
| Exam of lung airways and sampling of lymph nodes using an endoscope and ultrasound guidance, 1-2 lymph nodes | Procedure | 31652 |
39 |
| Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | Treatment | 99152 |
38 |
| Critical care, first 30-74 minutes | Office visit | 99291 |
66 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
32 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
28 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
27 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
21 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
13 |
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 pulmonary diseases at this location 3
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 pulmonary diseases in Saint Louis 6
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at University of Missouri, Kansas City, School of Medicine 7
Other providers in the same specialty who trained at the same institution.
Class of 2001 at University of Missouri, Kansas City, School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Exam of lung airways with diagnostic or therapeutic procedure on growths using an endoscope and ultrasound 8
Providers in MO who bill this service to Medicare most often.
Common questions
What does Dr. Chen specialize in?
Dr. Chen is a pulmonary disease in Saint Louis, MO. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “PULMONARY DISEASE”.
NPI registry
Where is Dr. Chen located?
Dr. Chen is listed at 4921 PARKVIEW PL DIV IM PULMONARY AND CCM, STE 8B, Saint Louis, MO 63110. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Chen's phone number?
The number on file is (314) 454-8917. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Chen?
Dr. Chen's National Provider Identifier is 1881802783. 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
Where did Dr. Chen go to medical school?
Dr. Chen attended University of Missouri, Kansas City, School of Medicine, graduating in 2001. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Chen have?
Dr. Chen has 25 years experience. Calculated from a graduation year of 2001, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Chen do most often?
According to Medicare billing data, Dr. Chen performs procedures including exam of lung airways with diagnostic or therapeutic procedure on growths using an endoscope and ultrasound, needle biopsy of windpipe cartilage, airway, and/or lung using an endoscope and exam of lung airways and sampling of lymph nodes using an endoscope and ultrasound guidance, 1-2 lymph nodes; provides treatments such as use of a drug to induce depression of consciousness by physician performing a procedure , initial 15 minutes, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Chen's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Chen. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.