Doctor profile · Federal record
Dr. Nihaal Karnik, MD
Gastroenterology Physician (CMS: Gastroenterology) · Internal Medicine Physician · Seattle, WA
- NPI 1407384852
- Accepts Medicare
- 10 yrs in practice
- Licensed in 2 states
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1100 9Th Ave
Seattle, WA 981012756
(206) 223-2319
fax (206) 341-1405
Credentials & registration
- NPI registered
- May 2017 — 9 yrs on file
- Profile last updated
- September 29, 2023
- Year of graduation
- 2016 — 10 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State licenses (2)
- Washington #MD61414810 · Pennsylvania #MT213556
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1407384852. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
45
Distinct HCPCS
1
Medicare allowed
$3,768
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 45 | 26 | $84 |
In context: peer comparison
Among 44 peers in Seattle Gastroenterology Physician, average services per provider: 39. This provider delivers 1.2× the peer median.Open Payments
Industry payments received
All-time total
$12,522
Transactions
2
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Boston Scientific Corporation | 1 | $12,500.00 | |
| Micro-Tech Endoscopy USA, INC. | 1 | $21.72 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
51
Patients
13
Total drug cost
$7,797
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Pantoprazole Sodium | Generic | 22 | 0 | $278 |
| Mesalamine | Generic | 16 | 0 | $7,213 |
| Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) | Brand | 13 | 13 | $305 |
Hospital affiliations
Frequently asked questions
What is Dr. Nihaal Karnik's medical specialty?
Dr. Nihaal Karnik practices Gastroenterology Physician in Seattle, WA.
Where does Dr. Nihaal Karnik practice?
Dr. Nihaal Karnik practices at 1100 9Th Ave, Seattle, WA 981012756. Office phone: 2062232319.
What is Dr. Nihaal Karnik's NPI?
Dr. Nihaal Karnik's National Provider Identifier (NPI) is 1407384852, issued by NPPES.
Does Dr. Nihaal Karnik accept Medicare assignment?
Yes. Dr. Nihaal Karnik accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nihaal Karnik commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.