Doctor profile · Federal record
Dr. Johannes Koch, MD
Gastroenterology Physician (CMS: Gastroenterology) · Seattle, WA
- NPI 1396716148
- Accepts Medicare
- MIPS 87.0 / 100 · 2023
- 39 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1100 9Th Ave
Seattle, WA 981012756
(206) 223-2319
Credentials & registration
- NPI registered
- January 2006 — 20 yrs on file
- Profile last updated
- February 22, 2013
- Year of graduation
- 1987 — 39 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Washington #MD00039369
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1396716148. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
97
Distinct HCPCS
4
Medicare allowed
$12,215
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 48 | 47 | $113 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 20 | 20 | $175 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 18 | 18 | $109 | |
91110 |
Imaging of digestive tract done from the inside of the digestive tract | 11 | 11 | $120 |
In context: peer comparison
Among 44 peers in this city , average services per provider: 39. This provider delivers 2.5× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
43
Patients
32
Total drug cost
$1,426
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) | Brand | 21 | 21 | $352 |
| Omeprazole | Generic | 11 | 0 | $179 |
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,mag Sulfates) | Brand | 11 | 11 | $895 |
Hospital affiliations
Frequently asked questions
What is Dr. Johannes Koch's medical specialty?
Dr. Johannes Koch practices Gastroenterology Physician in Seattle, WA.
Where does Dr. Johannes Koch practice?
Dr. Johannes Koch practices at 1100 9Th Ave, Seattle, WA 981012756. Office phone: 2062232319.
What is Dr. Johannes Koch's NPI?
Dr. Johannes Koch's National Provider Identifier (NPI) is 1396716148, issued by NPPES.
Does Dr. Johannes Koch accept Medicare assignment?
Yes. Dr. Johannes Koch accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Johannes Koch commonly perform?
Top Medicare-reported procedures in 2023: 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); Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43235). Source: CMS Medicare Physician & Other Practitioners file.