Doctor profile · Federal record
Dr. Christopher Duncan, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Burien, WA
- NPI 1164457974
- Accepts Medicare
- 25 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
16233 Sylvester RD Sw, G-20
Burien, WA 981663045
(206) 431-9771
fax (206) 431-5484
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- April 29, 2008
- Year of graduation
- 2001 — 25 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Washington #MD00047577
- Medicaid
- WA #1123967
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1164457974. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
429
Distinct HCPCS
10
Medicare allowed
$63,807
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 97 | 84 | $99 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 68 | 59 | $139 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 61 | 61 | $124 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 56 | 55 | $218 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 44 | 44 | $182 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 33 | 33 | $99 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 25 | 25 | $182 | |
45388 |
Destruction of polyp or growth of large bowel using a flexible endoscope | 17 | 16 | $284 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 16 | 16 | $123 | |
G0121 |
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 12 | 12 | $194 |
In context: peer comparison
Among 3 peers in Burien Gastroenterology Physician, average services per provider: 37. This provider delivers 12× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,183
Patients
600
Total drug cost
$138,065
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 234 | 228 | $3,936 |
| Famotidine | Generic | 176 | 47 | $2,265 |
| Omeprazole | Generic | 174 | 66 | $2,290 |
| Pantoprazole Sodium | Generic | 159 | 57 | $3,177 |
| Creon (Lipase/Protease/Amylase) | Brand | 71 | 21 | $59,901 |
| Colestipol Hcl | Generic | 61 | 17 | $5,352 |
| Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) | Brand | 51 | 50 | $1,243 |
| Linzess (Linaclotide) | Brand | 46 | 11 | $36,062 |
| Sucralfate | Generic | 43 | 18 | $4,357 |
| Peg-3350 and Electrolytes (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 35 | 34 | $585 |
Hospital affiliations
Frequently asked questions
What is Dr. Christopher Duncan's medical specialty?
Dr. Christopher Duncan practices Gastroenterology Physician in Burien, WA.
Where does Dr. Christopher Duncan practice?
Dr. Christopher Duncan practices at 16233 Sylvester RD Sw, Burien, WA 981663045. Office phone: 2064319771.
What is Dr. Christopher Duncan's NPI?
Dr. Christopher Duncan's National Provider Identifier (NPI) is 1164457974, issued by NPPES.
Does Dr. Christopher Duncan accept Medicare assignment?
Yes. Dr. Christopher Duncan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Christopher Duncan commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Biopsy of large bowel using a flexible endoscope (HCPCS 45380). Source: CMS Medicare Physician & Other Practitioners file.