Doctor profile · Federal record
Dr. Alan Chen, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Baltimore, MD
- NPI 1033539945
- Accepts Medicare
- MIPS 79.1 / 100 · 2023
- 12 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
9000 Franklin Square Dr
Baltimore, MD 212373901
(443) 777-2475
Credentials & registration
- NPI registered
- April 2014 — 12 yrs on file
- Profile last updated
- May 15, 2020
- Year of graduation
- 2014 — 12 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Maryland #D0089536
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1033539945. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
647
Distinct HCPCS
10
Medicare allowed
$103,078
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 99 | 98 | $183 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 88 | 79 | $135 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 81 | 81 | $174 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 60 | 60 | $269 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 55 | 54 | $109 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 49 | 49 | $111 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 46 | 46 | $162 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 43 | 43 | $119 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 34 | 30 | $95 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 32 | 31 | $181 |
In context: peer comparison
Among 49 peers in Baltimore Gastroenterology Physician, average services per provider: 49. This provider delivers 13× the peer median.Open Payments
Industry payments received
All-time total
$256
Transactions
8
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 8 | $256.02 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
232
Patients
71
Total drug cost
$5,391
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Pantoprazole Sodium | Generic | 64 | 25 | $760 |
| Omeprazole | Generic | 58 | 28 | $1,316 |
| Famotidine | Generic | 45 | 18 | $1,248 |
| Diphenoxylate-Atropine (Diphenoxylate Hcl/Atropine) | Brand | 15 | 0 | $630 |
| Amitriptyline Hcl | Generic | 14 | 0 | $171 |
| Dicyclomine Hcl | Generic | 13 | 0 | $360 |
| Esomeprazole Magnesium | Generic | 12 | 0 | $872 |
| Metoclopramide Hcl | Generic | 11 | 0 | $34 |
Frequently asked questions
What is Dr. Alan Chen's medical specialty?
Dr. Alan Chen practices Gastroenterology Physician in Baltimore, MD.
Where does Dr. Alan Chen practice?
Dr. Alan Chen practices at 9000 Franklin Square Dr, Baltimore, MD 212373901. Office phone: 4437772475.
What is Dr. Alan Chen's NPI?
Dr. Alan Chen's National Provider Identifier (NPI) is 1033539945, issued by NPPES.
Does Dr. Alan Chen accept Medicare assignment?
Yes. Dr. Alan Chen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alan Chen commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with moderate level of medical decision making (HCPCS 99223); Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.