Doctor profile · Federal record
Dr. Ioannis Karakalpakis, MD
Hospitalist Physician (CMS: Internal Medicine) · Wailuku, HI
- NPI 1033418264
- Accepts Medicare
- MIPS 87.0 / 100 · 2023
- 21 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
221 Mahalani St
Wailuku, HI 96793
(808) 442-5503
fax (808) 442-5512 - Mailing address
-
2180 Main St
Wailuku, HI 967931625
Credentials & registration
- NPI registered
- March 2011 — 15 yrs on file
- Profile last updated
- March 29, 2019
- Year of graduation
- 2005 — 21 yrs since
- Specialty taxonomy
- 208M00000X — NUCC code
- State license (1)
- Hawaii #MD-19155
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1033418264. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
692
Distinct HCPCS
6
Medicare allowed
$66,439
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 369 | 128 | $79 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 116 | 52 | $117 | |
99239 |
Hospital discharge day management, more than 30 minutes | 84 | 83 | $115 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 69 | 20 | $48 | |
99291 |
Critical care, first 30-74 minutes | 38 | 12 | $212 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 16 | 16 | $175 |
In context: peer comparison
Among 7 peers in Wailuku Hospitalist Physician, average services per provider: 119. This provider delivers 5.8× the peer median.Open Payments
Industry payments received
All-time total
$39
Transactions
2
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 2 | $38.62 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
138
Patients
136
Total drug cost
$1,492
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Cephalexin | Generic | 25 | 24 | $181 |
| Metoprolol Succinate | Generic | 24 | 24 | $247 |
| Amlodipine Besylate | Generic | 20 | 20 | $79 |
| Prednisone | Generic | 16 | 16 | $66 |
| Doxycycline Monohydrate | Generic | 15 | 14 | $142 |
| Cefpodoxime Proxetil | Generic | 14 | 14 | $537 |
| Atorvastatin Calcium | Generic | 13 | 13 | $152 |
| Losartan Potassium | Generic | 11 | 11 | $88 |
Frequently asked questions
What is Dr. Ioannis Karakalpakis's medical specialty?
Dr. Ioannis Karakalpakis practices Hospitalist Physician in Wailuku, HI.
Where does Dr. Ioannis Karakalpakis practice?
Dr. Ioannis Karakalpakis practices at 221 Mahalani St, Wailuku, HI 96793. Office phone: 8084425503.
What is Dr. Ioannis Karakalpakis's NPI?
Dr. Ioannis Karakalpakis's National Provider Identifier (NPI) is 1033418264, issued by NPPES.
Does Dr. Ioannis Karakalpakis accept Medicare assignment?
Yes. Dr. Ioannis Karakalpakis accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ioannis Karakalpakis commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.