Doctor profile · Federal record
Dr. Clifford Wong, MD
Nephrology Physician (CMS: Nephrology) · Hayward, CA
- NPI 1780621706
- Accepts Medicare
- 29 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
27200 Calaroga Ave
Hayward, CA 945454339
(510) 783-2003
fax (510) 783-2007
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- November 28, 2022
- Year of graduation
- 1997 — 29 yrs since
- Specialty taxonomy
- 207RN0300X — NUCC code
- State license (1)
- California #A68265
- Medicaid
- CA #00A682650
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1780621706. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,622
Distinct HCPCS
10
Medicare allowed
$337,586
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
90960 |
Dialysis services, 4 or more physician visits per month (20 years or older) | 404 | 47 | $406 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 315 | 138 | $134 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 273 | 132 | $89 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 258 | 119 | $164 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 127 | 115 | $195 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 103 | 73 | $147 | |
90935 |
Hemodialysis procedure with physician evaluation | 75 | 56 | $81 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 27 | 27 | $258 | |
90961 |
Dialysis services, 2-3 physician visits per month (20 years or older) | 22 | 18 | $339 | |
99291 |
Critical care, first 30-74 minutes | 18 | 16 | $224 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 151. This provider delivers 11× the peer median.Open Payments
Industry payments received
All-time total
$975
Transactions
51
Manufacturers
11
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| CALLIDITAS THERAPEUTICS US INC. | 15 | $211.43 | |
| Lilly USA, LLC | 6 | $140.93 | |
| AstraZeneca Pharmaceuticals LP | 7 | $133.20 | |
| Amgen Inc. | 5 | $113.06 | |
| OPKO Pharmaceuticals, LLC | 6 | $105.00 | |
| Bayer Healthcare Pharmaceuticals Inc. | 4 | $100.46 | |
| Mallinckrodt Hospital Products Inc. | 2 | $48.74 | |
| Ardelyx, Inc. | 2 | $35.42 | |
| Travere Therapeutics, Inc. | 2 | $32.47 | |
| GlaxoSmithKline, LLC. | 1 | $31.12 | |
| Boehringer Ingelheim Pharmaceuticals, Inc. | 1 | $23.15 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,144
Patients
349
Total drug cost
$457,147
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Hydralazine Hcl | Generic | 158 | 51 | $3,974 |
| Rayaldee (Calcifediol) | Brand | 140 | 20 | $184,012 |
| Losartan Potassium | Generic | 125 | 46 | $2,339 |
| Lisinopril | Generic | 99 | 31 | $1,410 |
| Furosemide | Generic | 92 | 32 | $1,164 |
| Metoprolol Tartrate | Generic | 83 | 26 | $1,465 |
| Calcitriol | Generic | 65 | 24 | $1,633 |
| Lokelma (Sodium Zirconium Cyclosilicate) | Brand | 58 | 20 | $115,131 |
| Farxiga (Dapagliflozin Propanediol) | Brand | 54 | 21 | $82,400 |
| Amlodipine Besylate | Generic | 50 | 21 | $888 |
Hospital affiliations
Frequently asked questions
What is Dr. Clifford Wong's medical specialty?
Dr. Clifford Wong practices Nephrology Physician in Hayward, CA.
Where does Dr. Clifford Wong practice?
Dr. Clifford Wong practices at 27200 Calaroga Ave, Hayward, CA 945454339. Office phone: 5107832003.
What is Dr. Clifford Wong's NPI?
Dr. Clifford Wong's National Provider Identifier (NPI) is 1780621706, issued by NPPES.
Does Dr. Clifford Wong accept Medicare assignment?
Yes. Dr. Clifford Wong accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Clifford Wong commonly perform?
Top Medicare-reported procedures in 2023: Dialysis services, 4 or more physician visits per month (20 years or older) (HCPCS 90960); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.