Doctor profile · Federal record
Dr. Karn Wijarnpreecha, M.D., MPH
Gastroenterology Physician (CMS: Internal Medicine) · Internal Medicine Physician · Transplant Hepatology Physician · Phoenix, AZ
- NPI 1942683008
- Accepts Medicare
- MIPS 86.7 / 100 · 2023
- 13 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1441 N 12Th St Fl 2
Phoenix, AZ 850062837
(602) 521-5800
fax (602) 521-5334
Credentials & registration
- NPI registered
- July 2015 — 11 yrs on file
- Profile last updated
- September 25, 2025
- Year of graduation
- 2013 — 13 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Arizona #64404
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1942683008. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
98
Distinct HCPCS
3
Medicare allowed
$13,092
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 53 | 22 | $117 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 31 | 18 | $141 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 14 | 14 | $178 |
In context: peer comparison
Among 19 peers in Phoenix Gastroenterology Physician, average services per provider: 61. This provider delivers 1.6× the peer median.Open Payments
Industry payments received
All-time total
$104
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 1 | $103.89 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
215
Patients
65
Total drug cost
$136,774
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Lactulose | Generic | 42 | 23 | $3,007 |
| Carvedilol | Generic | 39 | 18 | $466 |
| Xifaxan (Rifaximin) | Brand | 30 | 0 | $125,165 |
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 24 | 24 | $399 |
| Ursodiol | Generic | 24 | 0 | $6,692 |
| Spironolactone | Generic | 22 | 0 | $673 |
| Hydroxyzine Hcl | Generic | 21 | 0 | $223 |
| Furosemide | Generic | 13 | 0 | $149 |
Hospital affiliations
Frequently asked questions
What is Dr. Karn Wijarnpreecha's medical specialty?
Dr. Karn Wijarnpreecha practices Gastroenterology Physician in Phoenix, AZ.
Where does Dr. Karn Wijarnpreecha practice?
Dr. Karn Wijarnpreecha practices at 1441 N 12Th St Fl 2, Phoenix, AZ 850062837. Office phone: 6025215800.
What is Dr. Karn Wijarnpreecha's NPI?
Dr. Karn Wijarnpreecha's National Provider Identifier (NPI) is 1942683008, issued by NPPES.
Does Dr. Karn Wijarnpreecha accept Medicare assignment?
Yes. Dr. Karn Wijarnpreecha accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Karn Wijarnpreecha commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Established patient office or other outpatient visit (HCPCS 99215); New patient office or other outpatient visit (HCPCS 99205). Source: CMS Medicare Physician & Other Practitioners file.