Doctor profile · Federal record
Dr. Sy Oang, D.O.
Internal Medicine Physician (CMS: Internal Medicine) · Whittier, CA
- NPI 1972692937
- Accepts Medicare
- MIPS 67.3 / 100 · 2023
- 35 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
15725 E Whittier Blvd
Whittier, CA 906032347
(562) 947-8478
fax (562) 943-1090 - Mailing address
-
Po Box 1277
Whittier, CA 906091277
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- March 13, 2008
- Year of graduation
- 1991 — 35 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #20A6673
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1972692937. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
584
Distinct HCPCS
7
Medicare allowed
$66,558
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 329 | 160 | $141 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 125 | 88 | $100 | |
G0008 |
Administration of influenza virus vaccine | 39 | 37 | $34 | |
90694 |
Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage | 36 | 35 | $76 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 22 | 22 | $143 | |
71046 |
X-ray of chest, 2 views | 19 | 16 | $27 | |
83036 |
Hemoglobin a1c level | 14 | 12 | $10 |
In context: peer comparison
Among 17 peers in Whittier Internal Medicine Physician, average services per provider: 173. This provider delivers 3.4× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
3,837
Patients
1,102
Total drug cost
$83,920
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 540 | 154 | $8,715 |
| Amlodipine Besylate | Generic | 449 | 128 | $4,266 |
| Rosuvastatin Calcium | Generic | 432 | 124 | $23,904 |
| Levothyroxine Sodium | Generic | 366 | 96 | $8,751 |
| Losartan Potassium | Generic | 342 | 96 | $7,051 |
| Simvastatin | Generic | 257 | 74 | $3,811 |
| Lisinopril | Generic | 198 | 57 | $2,203 |
| Metoprolol Succinate | Generic | 191 | 57 | $4,211 |
| Furosemide | Generic | 168 | 51 | $1,856 |
| Metoprolol Tartrate | Generic | 168 | 55 | $1,927 |
Hospital affiliations
Frequently asked questions
What is Dr. Sy Oang's medical specialty?
Dr. Sy Oang practices Internal Medicine Physician in Whittier, CA.
Where does Dr. Sy Oang practice?
Dr. Sy Oang practices at 15725 E Whittier Blvd, Whittier, CA 906032347. Office phone: 5629478478.
What is Dr. Sy Oang's NPI?
Dr. Sy Oang's National Provider Identifier (NPI) is 1972692937, issued by NPPES.
Does Dr. Sy Oang accept Medicare assignment?
Yes. Dr. Sy Oang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sy Oang 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); Administration of influenza virus vaccine (HCPCS G0008). Source: CMS Medicare Physician & Other Practitioners file.