Doctor profile · Federal record
Dr. Darol Joseff, M.D.
Nephrology Physician (CMS: Nephrology) · Santa Barbara, CA
- NPI 1669554739
- Accepts Medicare
- MIPS 17.3 / 100 · 2023
- 46 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
2428 Castillo St Ste A
Santa Barbara, CA 931055308
(805) 682-2541
fax (805) 682-1429
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- July 8, 2007
- Year of graduation
- 1980 — 46 yrs since
- Specialty taxonomy
- 207RN0300X — NUCC code
- State license (1)
- California #G46420
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1669554739. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,269
Distinct HCPCS
10
Medicare allowed
$401,674
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 904 | 294 | $189 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 442 | 136 | $123 | |
90960 |
Dialysis services, 4 or more physician visits per month (20 years or older) | 204 | 45 | $367 | |
90937 |
Hemodialysis procedure requiring repeated evaluation | 189 | 69 | $105 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 150 | 67 | $82 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 133 | 110 | $179 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 104 | 77 | $133 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 68 | 68 | $233 | |
99291 |
Critical care, first 30-74 minutes | 41 | 26 | $217 | |
90961 |
Dialysis services, 2-3 physician visits per month (20 years or older) | 18 | 16 | $306 |
In context: peer comparison
Among 2 peers in Santa Barbara Nephrology Physician, average services per provider: 879. This provider delivers 2.6× the peer median.Open Payments
Industry payments received
All-time total
$1,549
Transactions
55
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals Lp | 14 | $523.52 | |
| Amgen INC. | 6 | $158.29 | |
| Akebia Therapeutics INC | 5 | $119.99 | |
| Bayer Healthcare Pharmaceuticals INC. | 5 | $118.61 | |
| Aurinia Pharma U.S., INC. | 4 | $106.14 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 4 | $103.93 | |
| Otsuka America Pharmaceutical, INC. | 4 | $79.48 | |
| Pfizer INC. | 2 | $49.84 | |
| Calliditas Therapeutics US INC. | 2 | $47.51 | |
| Novartis Pharmaceuticals Corporation | 2 | $46.71 | |
| Ardelyx, INC. | 2 | $35.61 | |
| Alnylam Pharmaceuticals INC. | 2 | $29.98 | |
| Mozarc Medical US LLC | 1 | $29.44 | |
| Alexion Pharmaceuticals, INC. | 1 | $27.39 | |
| Travere Therapeutics, INC. | 1 | $27.00 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,338
Patients
306
Total drug cost
$175,602
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amlodipine Besylate | Generic | 202 | 53 | $2,809 |
| Atorvastatin Calcium | Generic | 187 | 53 | $2,877 |
| Losartan Potassium | Generic | 184 | 48 | $2,943 |
| Chlorthalidone | Generic | 106 | 32 | $2,662 |
| Levothyroxine Sodium | Generic | 101 | 29 | $2,167 |
| Rosuvastatin Calcium | Generic | 97 | 29 | $1,693 |
| Eliquis (Apixaban) | Brand | 91 | 18 | $68,164 |
| Farxiga (Dapagliflozin Propanediol) | Brand | 84 | 21 | $72,717 |
| Prosol (Parenteral Amino Acid 20% No.1) | Brand | 84 | 0 | $15,621 |
| Carvedilol | Generic | 39 | 0 | $1,113 |
Frequently asked questions
What is Dr. Darol Joseff's medical specialty?
Dr. Darol Joseff practices Nephrology Physician in Santa Barbara, CA.
Where does Dr. Darol Joseff practice?
Dr. Darol Joseff practices at 2428 Castillo St Ste A, Santa Barbara, CA 931055308. Office phone: 8056822541.
What is Dr. Darol Joseff's NPI?
Dr. Darol Joseff's National Provider Identifier (NPI) is 1669554739, issued by NPPES.
Does Dr. Darol Joseff accept Medicare assignment?
Yes. Dr. Darol Joseff accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Darol Joseff commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Dialysis services, 4 or more physician visits per month (20 years or older) (HCPCS 90960). Source: CMS Medicare Physician & Other Practitioners file.