Doctor profile · Federal record
Dr. Joan Chen, MD
Gastroenterology Physician (CMS: Gastroenterology) · Internal Medicine Physician · Internal Medicine Physician · Ann Arbor, MI
- NPI 1932371713
- Accepts Medicare
- 21 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1500 East Medical Center Dr, 3Rd Floor Taubman Center Recp D
Ann Arbor, MI 481095362
(734) 647-5944
fax (734) 936-5458 - Mailing address
-
3621 South State St, 700 Kms Place
Ann Arbor, MI 48108
Credentials & registration
- NPI registered
- April 2008 — 18 yrs on file
- Profile last updated
- September 3, 2013
- Year of graduation
- 2005 — 21 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State licenses (2)
- Michigan #4301103392 · Illinois #036119706
- Medicaid
- IL #036119706
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1932371713. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
338
Distinct HCPCS
10
Medicare allowed
$27,608
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
91010 |
Study of esophagus to assess movement | 58 | 58 | $62 | |
91010 |
Study of esophagus to assess movement | 42 | 42 | $61 | |
91037 |
Monitoring and recording of esophageal function through nasal tube with electrode | 41 | 41 | $47 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 29 | 27 | $99 | |
91037 |
Monitoring and recording of esophageal function through nasal tube with electrode | 22 | 22 | $47 | |
91038 |
Prolonged monitoring and recording of esophageal function through nasal tube with electrode | 22 | 22 | $51 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 20 | 19 | $145 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 19 | 15 | $121 | |
91038 |
Prolonged monitoring and recording of esophageal function through nasal tube with electrode | 17 | 17 | $53 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 16 | 15 | $114 |
In context: peer comparison
Among 24 peers in this city , average services per provider: 25. This provider delivers 14× the peer median.Open Payments
Industry payments received
All-time total
$11,482
Transactions
16
Manufacturers
3
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Phathom Pharmaceuticals, Inc. | 12 | $11,277.78 | |
| Regeneron Healthcare Solutions, Inc. | 2 | $108.82 | |
| GENZYME CORPORATION | 2 | $95.41 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
195
Patients
67
Total drug cost
$6,275
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 106 | 32 | $2,610 |
| Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) | Brand | 36 | 35 | $1,037 |
| Pantoprazole Sodium | Generic | 29 | 0 | $1,066 |
| Esomeprazole Magnesium | Generic | 12 | 0 | $1,215 |
| Famotidine | Generic | 12 | 0 | $347 |
Hospital affiliations
Frequently asked questions
What is Dr. Joan Chen's medical specialty?
Dr. Joan Chen practices Gastroenterology Physician in Ann Arbor, MI.
Where does Dr. Joan Chen practice?
Dr. Joan Chen practices at 1500 East Medical Center Dr, Ann Arbor, MI 481095362. Office phone: 7346475944.
What is Dr. Joan Chen's NPI?
Dr. Joan Chen's National Provider Identifier (NPI) is 1932371713, issued by NPPES.
Does Dr. Joan Chen accept Medicare assignment?
Yes. Dr. Joan Chen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Joan Chen commonly perform?
Top Medicare-reported procedures in 2023: Study of esophagus to assess movement (HCPCS 91010); Study of esophagus to assess movement (HCPCS 91010); Monitoring and recording of esophageal function through nasal tube with electrode (HCPCS 91037). Source: CMS Medicare Physician & Other Practitioners file.