Doctor profile · Federal record
Dr. Riad Darwish, M.D.
Nephrology Physician · Internal Medicine Physician · Whittier, CA
- NPI 1366459208
- 20 yrs on file
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
12462 Putnam St., Suite 506
Whittier, CA 906021002
(562) 698-8141
fax (562) 698-9885 - Mailing address
-
Po Box 4249
Whittier, CA 906074249
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- May 17, 2017
- Specialty taxonomy
- 207RN0300X — NUCC code
- State license (1)
- California #A36607
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1366459208. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
191
Distinct HCPCS
2
Medicare allowed
$22,080
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 160 | 70 | $120 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 31 | 23 | $93 |
In context: peer comparison
Among 7 peers in Whittier Nephrology Physician, average services per provider: 133. This provider delivers 1.4× the peer median.Open Payments
Industry payments received
All-time total
$141
Transactions
2
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals Lp | 1 | $119.76 | |
| Calliditas Therapeutics US INC. | 1 | $21.34 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
497
Patients
81
Total drug cost
$22,875
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 87 | 25 | $863 |
| Labetalol Hcl | Generic | 63 | 15 | $2,745 |
| Amlodipine Besylate | Generic | 59 | 14 | $422 |
| Allopurinol | Generic | 45 | 16 | $744 |
| Levothyroxine Sodium | Generic | 35 | 0 | $533 |
| Furosemide | Generic | 34 | 11 | $220 |
| Calcium Acetate | Generic | 30 | 0 | $2,737 |
| Losartan Potassium | Generic | 24 | 0 | $472 |
| Hydrochlorothiazide | Generic | 22 | 0 | $83 |
| Simvastatin | Generic | 21 | 0 | $59 |
Frequently asked questions
What is Dr. Riad Darwish's medical specialty?
Dr. Riad Darwish practices Nephrology Physician in Whittier, CA.
Where does Dr. Riad Darwish practice?
Dr. Riad Darwish practices at 12462 Putnam St., Whittier, CA 906021002. Office phone: 5626988141.
What is Dr. Riad Darwish's NPI?
Dr. Riad Darwish's National Provider Identifier (NPI) is 1366459208, issued by NPPES.
What procedures does Dr. Riad Darwish commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.