Doctor profile · Federal record
Dr. Alexander Chen, MD
Pulmonary Disease Physician (CMS: Pulmonary Disease) · Saint Louis, MO
- NPI 1881802783
- Accepts Medicare
- MIPS 79.3 / 100 · 2023
- 25 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
4921 Parkview Pl, Div Im Pulmonary and Ccm, Ste 8B
Saint Louis, MO 631101032
(314) 454-8917
fax (314) 454-5571 - Mailing address
-
Po Box 7412011
Chicago, IL 606742011
Credentials & registration
- NPI registered
- May 2007 — 19 yrs on file
- Profile last updated
- April 15, 2025
- Year of graduation
- 2001 — 25 yrs since
- Specialty taxonomy
- 207RP1001X — NUCC code
- State license (1)
- Missouri #2004016896
- Medicaid
- MO #209290600
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1881802783. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
241
Distinct HCPCS
8
Medicare allowed
$34,566
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99291 |
Critical care, first 30-74 minutes | 68 | 35 | $212 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 40 | 36 | $87 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 27 | 20 | $78 | |
31629 |
Needle biopsy of windpipe cartilage, airway, and/or lung using an endoscope | 26 | 25 | $168 | |
31654 |
Exam of lung airways with diagnostic or therapeutic procedure on growths using an endoscope and ultrasound | 26 | 25 | $65 | |
31652 |
Exam of lung airways and sampling of lymph nodes using an endoscope and ultrasound guidance, 1-2 lymph nodes | 23 | 23 | $216 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 18 | 18 | $103 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 13 | 13 | $129 |
In context: peer comparison
Among 40 peers in this city , average services per provider: 94. This provider delivers 2.6× the peer median.Open Payments
Industry payments received
All-time total
$112,880
Transactions
141
Manufacturers
7
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Olympus Corporation of the Americas | 92 | $68,671.15 | |
| Olympus America Inc. | 25 | $20,258.01 | |
| Gyrus ACMI, Inc. | 14 | $13,872.65 | |
| Olympus Medical Systems Corporation | 7 | $5,485.59 | |
| AstraZeneca Pharmaceuticals LP | 1 | $4,027.50 | |
| Veran Medical Technologies, Inc. | 1 | $440.00 | |
| INTUITIVE SURGICAL, INC. | 1 | $125.53 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
11
Patients
0
Total drug cost
$5,408
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Anoro Ellipta (Umeclidinium Brm/Vilanterol Tr) | Brand | 11 | 0 | $5,408 |
Hospital affiliations
Frequently asked questions
What is Dr. Alexander Chen's medical specialty?
Dr. Alexander Chen practices Pulmonary Disease Physician in Saint Louis, MO.
Where does Dr. Alexander Chen practice?
Dr. Alexander Chen practices at 4921 Parkview Pl, Saint Louis, MO 631101032. Office phone: 3144548917.
What is Dr. Alexander Chen's NPI?
Dr. Alexander Chen's National Provider Identifier (NPI) is 1881802783, issued by NPPES.
Does Dr. Alexander Chen accept Medicare assignment?
Yes. Dr. Alexander Chen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alexander Chen commonly perform?
Top Medicare-reported procedures in 2023: Critical care (HCPCS 99291); Established patient office or other outpatient visit (HCPCS 99213); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.