Doctor profile · Federal record
Dr. Dian Chiang, MD
Gastroenterology Physician (CMS: Gastroenterology) · Internal Medicine Physician · Internal Medicine Physician · Seattle, WA
- NPI 1982870127
- Accepts Medicare
- 22 yrs in practice
- Licensed in 3 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1221 Madison St Ste 1220
Seattle, WA 981041356
(206) 215-4250
fax (206) 215-4252 - Mailing address
-
Po Box 25608
Salt Lake City, UT 841250608
Credentials & registration
- NPI registered
- May 2008 — 18 yrs on file
- Profile last updated
- July 8, 2015
- Year of graduation
- 2004 — 22 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State licenses (3)
- Washington #MD60555376 · North Carolina #127901 · Ohio #35.097358
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1982870127. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
421
Distinct HCPCS
10
Medicare allowed
$42,088
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 101 | 71 | $94 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 95 | 34 | $116 | |
G0500 |
Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito | 48 | 48 | $5 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 43 | 43 | $127 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 43 | 37 | $65 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 27 | 26 | $118 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 14 | 13 | $102 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 14 | 13 | $247 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 12 | 12 | $112 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 12 | 12 | $128 |
In context: peer comparison
Among 44 peers in this city , average services per provider: 39. This provider delivers 11× the peer median.Open Payments
Industry payments received
All-time total
$2,897
Transactions
7
Manufacturers
5
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Ipsen Biopharmaceuticals, Inc | 1 | $2,760.00 | |
| ABBVIE INC. | 3 | $48.00 | |
| Madrigal Pharmaceuticals | 1 | $38.74 | |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | 1 | $25.83 | |
| Mallinckrodt Hospital Products Inc. | 1 | $24.65 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
187
Patients
20
Total drug cost
$76,734
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Ursodiol | Generic | 26 | 0 | $3,855 |
| Budesonide Ec (Budesonide) | Brand | 25 | 0 | $13,481 |
| Famotidine | Generic | 20 | 0 | $65 |
| Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) | Brand | 20 | 20 | $327 |
| Omeprazole | Generic | 17 | 0 | $127 |
| Xifaxan (Rifaximin) | Brand | 17 | 0 | $57,436 |
| Spironolactone | Generic | 14 | 0 | $199 |
| Azathioprine | Generic | 13 | 0 | $611 |
| Ondansetron Hcl | Generic | 12 | 0 | $109 |
| Pantoprazole Sodium | Generic | 12 | 0 | $192 |
Hospital affiliations
Frequently asked questions
What is Dr. Dian Chiang's medical specialty?
Dr. Dian Chiang practices Gastroenterology Physician in Seattle, WA.
Where does Dr. Dian Chiang practice?
Dr. Dian Chiang practices at 1221 Madison St Ste 1220, Seattle, WA 981041356. Office phone: 2062154250.
What is Dr. Dian Chiang's NPI?
Dr. Dian Chiang's National Provider Identifier (NPI) is 1982870127, issued by NPPES.
Does Dr. Dian Chiang accept Medicare assignment?
Yes. Dr. Dian Chiang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Dian Chiang commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (HCPCS G0500). Source: CMS Medicare Physician & Other Practitioners file.