Doctor profile · Federal record
Dr. Duane Webb, MD
Gastroenterology Physician (CMS: Gastroenterology) · Gastroenterology Physician · Sequim, WA
- NPI 1881637742
- Accepts Medicare
- 52 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 4 locations .
- Primary practice
-
840 N 5Th Ave Ste 1500
Sequim, WA 983823045
(360) 565-0999
fax (360) 582-2841 - Additional location
-
1101 26Th St S
Great Falls, MT 594055161
(406) 731-8888
fax (406) 731-8318 - Additional location
-
320 Sunnyview Ln
Kalispell, MT 599013129
(406) 752-7441
fax (406) 257-0304 - Additional location
-
4545 Cordata Pkwy Ste 1B
Bellingham, WA 982267264
(360) 752-5216 - Mailing address
-
Po Box 850
Port Angeles, WA 983620146
Show 1 more location
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- July 22, 2025
- Year of graduation
- 1974 — 52 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State licenses (2)
- Washington #MD00046034 · Montana #MED-PHYS-LIC-81016
- Medicaid
- WA #1881637742
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1881637742. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
100
Distinct HCPCS
4
Medicare allowed
$9,783
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99203 |
New patient office or other outpatient visit, 30-44 minutes | 31 | 31 | $82 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 25 | 25 | $89 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 23 | 23 | $174 | |
99202 |
New patient office or other outpatient visit, 15-29 minutes | 21 | 21 | $48 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 25. This provider delivers 4.0× the peer median.Open Payments
Industry payments received
All-time total
$22
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Braintree Laboratories, Inc. | 1 | $21.72 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
94
Patients
94
Total drug cost
$5,876
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,mag Sulfates) | Brand | 32 | 32 | $2,313 |
| Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) | Brand | 27 | 27 | $521 |
| Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) | Brand | 21 | 21 | $657 |
| Sutab (Sod Sulf/Pot Chloride/Mag Sulf) | Brand | 14 | 14 | $2,384 |
Frequently asked questions
What is Dr. Duane Webb's medical specialty?
Dr. Duane Webb practices Gastroenterology Physician in Sequim, WA.
Where does Dr. Duane Webb practice?
Dr. Duane Webb practices at 840 N 5Th Ave Ste 1500, Sequim, WA 983823045. Office phone: 3605650999.
What is Dr. Duane Webb's NPI?
Dr. Duane Webb's National Provider Identifier (NPI) is 1881637742, issued by NPPES.
Does Dr. Duane Webb accept Medicare assignment?
Yes. Dr. Duane Webb accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Duane Webb commonly perform?
Top Medicare-reported procedures in 2023: New patient office or other outpatient visit (HCPCS 99203); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239); Biopsy of large bowel using a flexible endoscope (HCPCS 45380). Source: CMS Medicare Physician & Other Practitioners file.