Doctor profile · Federal record
Dr. Shao-Jen Chang, M.D.
Internal Medicine Physician (CMS: Pediatric Medicine) · Pediatrics Physician · Huntsville, TX
- NPI 1184797847
- Accepts Medicare
- MIPS 89.2 / 100 · 2023
- 31 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
123 Medical Park Ln Ste A
Huntsville, TX 773404981
(936) 291-2116
fax (936) 435-7824
Credentials & registration
- NPI registered
- November 2006 — 20 yrs on file
- Profile last updated
- February 9, 2012
- Year of graduation
- 1995 — 31 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Texas #K3891
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1184797847. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,373
Distinct HCPCS
10
Medicare allowed
$119,106
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 696 | 304 | $120 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 117 | 117 | $121 | |
J0696 |
Injection, ceftriaxone sodium, per 250 mg | 80 | 16 | $0 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 74 | 71 | $14 | |
G0008 |
Administration of influenza virus vaccine | 55 | 55 | $28 | |
90662 |
Influenza vaccine split virus, preservative free | 52 | 52 | $69 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 42 | 39 | $86 | |
J1030 |
Injection, methylprednisolone acetate, 40 mg | 42 | 18 | $8 | |
87804 |
Detection test by immunoassay with direct visual observation for influenza virus | 40 | 18 | $16 | |
96372 |
Injection of drug or substance under skin or into muscle | 38 | 24 | $13 |
In context: peer comparison
Among 5 peers in this city , average services per provider: 128. This provider delivers 11× the peer median.Open Payments
Industry payments received
All-time total
$751
Transactions
29
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Supernus Pharmaceuticals, Inc. | 1 | $200.68 | |
| AstraZeneca Pharmaceuticals LP | 6 | $100.09 | |
| PFIZER INC. | 3 | $62.86 | |
| ABBVIE INC. | 3 | $53.29 | |
| Dexcom, Inc. | 2 | $42.03 | |
| Amgen Inc. | 2 | $38.93 | |
| Abbott Laboratories | 2 | $38.21 | |
| iRhythm Technologies, Inc. | 1 | $34.79 | |
| Mylan Specialty L.P. | 1 | $33.14 | |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | 2 | $28.78 | |
| Lilly USA, LLC | 2 | $28.45 | |
| Phathom Pharmaceuticals, Inc. | 1 | $25.67 | |
| Kyowa Kirin, Inc. | 1 | $19.73 | |
| Astellas Pharma US Inc | 1 | $16.77 | |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $13.95 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,677
Patients
1,039
Total drug cost
$28,910
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 444 | 116 | $5,517 |
| Levothyroxine Sodium | Generic | 296 | 80 | $4,692 |
| Losartan Potassium | Generic | 248 | 68 | $3,284 |
| Amlodipine Besylate | Generic | 241 | 71 | $1,743 |
| Meloxicam | Generic | 193 | 79 | $633 |
| Methylprednisolone | Generic | 180 | 150 | $1,395 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 160 | 142 | $1,642 |
| Metformin Hcl | Generic | 141 | 40 | $1,216 |
| Gabapentin | Generic | 137 | 47 | $2,382 |
| Lisinopril | Generic | 132 | 39 | $1,015 |
Hospital affiliations
Frequently asked questions
What is Dr. Shao-Jen Chang's medical specialty?
Dr. Shao-Jen Chang practices Internal Medicine Physician in Huntsville, TX.
Where does Dr. Shao-Jen Chang practice?
Dr. Shao-Jen Chang practices at 123 Medical Park Ln Ste A, Huntsville, TX 773404981. Office phone: 9362912116.
What is Dr. Shao-Jen Chang's NPI?
Dr. Shao-Jen Chang's National Provider Identifier (NPI) is 1184797847, issued by NPPES.
Does Dr. Shao-Jen Chang accept Medicare assignment?
Yes. Dr. Shao-Jen Chang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Shao-Jen Chang commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Injection, ceftriaxone sodium, per 250 mg (HCPCS J0696). Source: CMS Medicare Physician & Other Practitioners file.