Doctor profile · Federal record
Dr. Kar Own, MD
Nephrology Physician (CMS: Nephrology) · Vallejo, CA
- NPI 1558449454
- Accepts Medicare
- 38 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
975 Sereno Dr
Vallejo, CA 945892441
(707) 651-1000 - Mailing address
-
1800 Harrison St Fl 7
Oakland, CA 946123466
Credentials & registration
- NPI registered
- November 2006 — 20 yrs on file
- Profile last updated
- December 17, 2021
- Year of graduation
- 1988 — 38 yrs since
- Specialty taxonomy
- 207RN0300X — NUCC code
- State license (1)
- California #A53485
- Medicaid
- CA #00A534850
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1558449454. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
71
Distinct HCPCS
1
Medicare allowed
$5,987
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 71 | 13 | $84 |
In context: peer comparison
Among 3 peers in Vallejo Nephrology Physician, average services per provider: 62. This provider delivers 1.1× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
462
Patients
129
Total drug cost
$45,892
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Calcitriol | Generic | 77 | 27 | $1,616 |
| Losartan Potassium | Generic | 61 | 26 | $777 |
| Amlodipine Besylate | Generic | 51 | 19 | $608 |
| Furosemide | Generic | 48 | 19 | $649 |
| Calcium Acetate | Generic | 40 | 18 | $5,041 |
| Sevelamer Carbonate | Generic | 36 | 20 | $11,881 |
| Clonidine Hcl | Generic | 29 | 0 | $602 |
| Jardiance (Empagliflozin) | Brand | 26 | 0 | $16,995 |
| Allopurinol | Generic | 24 | 0 | $201 |
| Hydralazine Hcl | Generic | 21 | 0 | $459 |
Frequently asked questions
What is Dr. Kar Own's medical specialty?
Dr. Kar Own practices Nephrology Physician in Vallejo, CA.
Where does Dr. Kar Own practice?
Dr. Kar Own practices at 975 Sereno Dr, Vallejo, CA 945892441. Office phone: 7076511000.
What is Dr. Kar Own's NPI?
Dr. Kar Own's National Provider Identifier (NPI) is 1558449454, issued by NPPES.
Does Dr. Kar Own accept Medicare assignment?
Yes. Dr. Kar Own accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Kar Own 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.