Doctor profile · Federal record
Dr. Thomas Hwang, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Tustin, CA
- NPI 1124039722
- Accepts Medicare
- MIPS 96.3 / 100 · 2023
- 23 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
17400 Irvine Blvd, Suite F
Tustin, CA 927803030
(714) 838-5610
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- June 10, 2011
- Year of graduation
- 2003 — 23 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A91056
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1124039722. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,503
Distinct HCPCS
10
Medicare allowed
$162,905
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 518 | 268 | $141 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 182 | 128 | $100 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 152 | 152 | $144 | |
36415 |
Insertion of needle into vein for collection of blood sample | 121 | 83 | $8 | |
G0008 |
Administration of influenza virus vaccine | 115 | 113 | $34 | |
90694 |
Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage | 108 | 107 | $75 | |
90677 |
Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | 85 | 85 | $282 | |
G0009 |
Administration of pneumococcal vaccine | 84 | 84 | $34 | |
69210 |
Removal of impacted ear wax | 27 | 20 | $52 | |
81002 |
Urinalysis, manual test | 27 | 23 | $3 |
In context: peer comparison
Among 9 peers in this city , average services per provider: 312. This provider delivers 4.8× the peer median.Open Payments
Industry payments received
All-time total
$442
Transactions
20
Manufacturers
9
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Boehringer Ingelheim Pharmaceuticals, Inc. | 6 | $137.93 | |
| AstraZeneca Pharmaceuticals LP | 4 | $86.08 | |
| Lilly USA, LLC | 3 | $60.17 | |
| PFIZER INC. | 2 | $33.87 | |
| Exact Sciences Corporation | 1 | $30.26 | |
| Merck Sharp & Dohme LLC | 1 | $26.48 | |
| Janssen Pharmaceuticals, Inc | 1 | $23.68 | |
| Bausch Health US, LLC | 1 | $23.47 | |
| GlaxoSmithKline, LLC. | 1 | $20.43 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,361
Patients
677
Total drug cost
$46,454
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 514 | 140 | $6,986 |
| Levothyroxine Sodium | Generic | 238 | 63 | $4,723 |
| Amlodipine Besylate | Generic | 198 | 63 | $1,968 |
| Lisinopril | Generic | 169 | 46 | $2,063 |
| Rosuvastatin Calcium | Generic | 166 | 46 | $5,091 |
| Escitalopram Oxalate | Generic | 163 | 40 | $3,456 |
| Valsartan | Generic | 154 | 41 | $6,005 |
| Fluticasone Propionate | Generic | 120 | 53 | $2,876 |
| Tamsulosin Hcl | Generic | 115 | 33 | $2,033 |
| Pantoprazole Sodium | Generic | 106 | 35 | $2,301 |
Hospital affiliations
Frequently asked questions
What is Dr. Thomas Hwang's medical specialty?
Dr. Thomas Hwang practices Internal Medicine Physician in Tustin, CA.
Where does Dr. Thomas Hwang practice?
Dr. Thomas Hwang practices at 17400 Irvine Blvd, Tustin, CA 927803030. Office phone: 7148385610.
What is Dr. Thomas Hwang's NPI?
Dr. Thomas Hwang's National Provider Identifier (NPI) is 1124039722, issued by NPPES.
Does Dr. Thomas Hwang accept Medicare assignment?
Yes. Dr. Thomas Hwang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thomas Hwang 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); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.