Doctor profile · Federal record
Dr. David Tay, M.D.
Specialist (CMS: Nephrology) · Fremont, CA
- NPI 1962440263
- Accepts Medicare
- 40 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
39233 Liberty St
Fremont, CA 945381501
(510) 795-8186
fax (510) 792-8186 - Mailing address
-
39270 Paseo Padre Pkwy, Suite 518
Fremont, CA 945381616
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- May 18, 2011
- Year of graduation
- 1986 — 40 yrs since
- Specialty taxonomy
- 174400000X — NUCC code
- State license (1)
- California #G63140
- Medicaid
- CA #00G631400
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1962440263. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
3,393
Distinct HCPCS
10
Medicare allowed
$595,308
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 1,142 | 213 | $90 | |
90960 |
Dialysis services, 4 or more physician visits per month (20 years or older) | 655 | 83 | $406 | |
90935 |
Hemodialysis procedure with physician evaluation | 437 | 83 | $81 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 391 | 200 | $150 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 241 | 155 | $197 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 113 | 68 | $135 | |
90937 |
Hemodialysis procedure requiring repeated evaluation | 95 | 39 | $115 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 90 | 72 | $104 | |
90961 |
Dialysis services, 2-3 physician visits per month (20 years or older) | 69 | 41 | $340 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 58 | 37 | $56 |
In context: peer comparison
Among 5 peers in this city , average services per provider: 102. This provider delivers 33× the peer median.Open Payments
Industry payments received
All-time total
$1,070
Transactions
50
Manufacturers
12
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Fresenius USA Marketing, Inc. | 14 | $256.42 | |
| Amgen Inc. | 11 | $228.88 | |
| AstraZeneca Pharmaceuticals LP | 5 | $101.77 | |
| CALLIDITAS THERAPEUTICS US INC. | 4 | $97.91 | |
| OPKO Pharmaceuticals, LLC | 4 | $78.95 | |
| Ardelyx, Inc. | 3 | $65.86 | |
| Bayer Healthcare Pharmaceuticals Inc. | 2 | $59.24 | |
| Boehringer Ingelheim Pharmaceuticals, Inc. | 2 | $57.81 | |
| Lilly USA, LLC | 2 | $55.09 | |
| Mallinckrodt Hospital Products Inc. | 1 | $29.51 | |
| Aurinia Pharma U.S., Inc. | 1 | $21.30 | |
| Xeris Pharmaceuticals, Inc. | 1 | $17.46 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,601
Patients
495
Total drug cost
$535,102
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amlodipine Besylate | Generic | 228 | 71 | $3,040 |
| Doxazosin Mesylate | Generic | 158 | 48 | $5,772 |
| Allopurinol | Generic | 149 | 48 | $2,954 |
| Calcitriol | Generic | 144 | 42 | $5,430 |
| Farxiga (Dapagliflozin Propanediol) | Brand | 137 | 35 | $180,597 |
| Jardiance (Empagliflozin) | Brand | 113 | 29 | $175,051 |
| Losartan Potassium | Generic | 112 | 35 | $2,074 |
| Lisinopril | Generic | 101 | 34 | $1,095 |
| Bumetanide | Generic | 99 | 37 | $7,162 |
| Carvedilol | Generic | 67 | 21 | $1,631 |
Frequently asked questions
What is Dr. David Tay's medical specialty?
Dr. David Tay practices Specialist in Fremont, CA.
Where does Dr. David Tay practice?
Dr. David Tay practices at 39233 Liberty St, Fremont, CA 945381501. Office phone: 5107958186.
What is Dr. David Tay's NPI?
Dr. David Tay's National Provider Identifier (NPI) is 1962440263, issued by NPPES.
Does Dr. David Tay accept Medicare assignment?
Yes. Dr. David Tay accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. David Tay commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Dialysis services, 4 or more physician visits per month (20 years or older) (HCPCS 90960); Hemodialysis procedure with physician evaluation (HCPCS 90935). Source: CMS Medicare Physician & Other Practitioners file.