Doctor profile · Federal record
Dr. Timothy Ong, MD
Internal Medicine Physician (CMS: Internal Medicine) · San Jose, CA
- NPI 1033125075
- Accepts Medicare
- MIPS 74.2 / 100 · 2023
- 33 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2400 Moorpark Ave, Vhc Moorpark Internal Medicine Clinic
San Jose, CA 951282631
(408) 885-5000
fax (408) 885-3335
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- February 27, 2012
- Year of graduation
- 1993 — 33 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #G80475
- Medicaid
- CA #00G804750
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1033125075. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
17
Distinct HCPCS
1
Medicare allowed
$2,249
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
77067 |
Screening mammography | 17 | 17 | $132 |
In context: peer comparison
Among 94 peers in San Jose Internal Medicine Physician, average services per provider: 175. This provider delivers 0.1× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
4,229
Patients
1,182
Total drug cost
$88,725
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 601 | 170 | $13,562 |
| Amlodipine Besylate | Generic | 557 | 166 | $8,489 |
| Metformin Hcl | Generic | 373 | 110 | $8,247 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 348 | 54 | $10,228 |
| Omeprazole | Generic | 313 | 88 | $7,479 |
| Gabapentin | Generic | 286 | 84 | $8,307 |
| Losartan Potassium | Generic | 276 | 83 | $6,332 |
| Simvastatin | Generic | 237 | 64 | $4,914 |
| Hydrochlorothiazide | Generic | 214 | 68 | $731 |
| Atenolol | Generic | 186 | 57 | $3,802 |
Frequently asked questions
What is Dr. Timothy Ong's medical specialty?
Dr. Timothy Ong practices Internal Medicine Physician in San Jose, CA.
Where does Dr. Timothy Ong practice?
Dr. Timothy Ong practices at 2400 Moorpark Ave, San Jose, CA 951282631. Office phone: 4088855000.
What is Dr. Timothy Ong's NPI?
Dr. Timothy Ong's National Provider Identifier (NPI) is 1033125075, issued by NPPES.
Does Dr. Timothy Ong accept Medicare assignment?
Yes. Dr. Timothy Ong accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Timothy Ong commonly perform?
Top Medicare-reported procedures in 2023: Screening mammography (HCPCS 77067). Source: CMS Medicare Physician & Other Practitioners file.