Doctor profile · Federal record
Dr. Chien-Huan Chen, MD
Gastroenterology Physician (CMS: Gastroenterology) · Saint Louis, MO
- NPI 1588691265
- Accepts Medicare
- MIPS 79.3 / 100 · 2023
- 27 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
4921 Parkview Pl, Div Im Gastroenterology, Ste 10B
Saint Louis, MO 631101032
(314) 747-2066
fax (314) 747-5871 - Mailing address
-
Po Box 7412011
Chicago, IL 606742011
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- April 15, 2025
- Year of graduation
- 1999 — 27 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Missouri #2004004892
- Medicaid
- MO #208314302
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1588691265. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
417
Distinct HCPCS
10
Medicare allowed
$60,428
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 139 | 114 | $126 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 63 | 63 | $128 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 61 | 60 | $246 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 42 | 40 | $79 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 30 | 30 | $165 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 24 | 24 | $172 | |
91110 |
Imaging of digestive tract done from the inside of the digestive tract | 17 | 17 | $110 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 15 | 13 | $177 | |
43249 |
Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm | 14 | 12 | $117 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 12 | 12 | $105 |
In context: peer comparison
Among 42 peers in Saint Louis Gastroenterology Physician, average services per provider: 60. This provider delivers 7.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
844
Patients
297
Total drug cost
$2,460,660
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 158 | 53 | $2,437 |
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 94 | 89 | $1,342 |
| Mesalamine | Generic | 87 | 21 | $88,061 |
| Azathioprine | Generic | 67 | 22 | $5,471 |
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) | Brand | 63 | 60 | $4,855 |
| Pantoprazole Sodium | Generic | 60 | 17 | $992 |
| Stelara (Ustekinumab) | Brand | 59 | 0 | $1,731,949 |
| Loperamide (Loperamide Hcl) | Brand | 49 | 12 | $2,711 |
| Allopurinol | Generic | 37 | 12 | $486 |
| Humira(Cf) Pen (Adalimumab) | Brand | 36 | 0 | $590,570 |
Hospital affiliations
Frequently asked questions
What is Dr. Chien-Huan Chen's medical specialty?
Dr. Chien-Huan Chen practices Gastroenterology Physician in Saint Louis, MO.
Where does Dr. Chien-Huan Chen practice?
Dr. Chien-Huan Chen practices at 4921 Parkview Pl, Saint Louis, MO 631101032. Office phone: 3147472066.
What is Dr. Chien-Huan Chen's NPI?
Dr. Chien-Huan Chen's National Provider Identifier (NPI) is 1588691265, issued by NPPES.
Does Dr. Chien-Huan Chen accept Medicare assignment?
Yes. Dr. Chien-Huan Chen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Chien-Huan Chen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Biopsy of large bowel using a flexible endoscope (HCPCS 45380); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385). Source: CMS Medicare Physician & Other Practitioners file.