SHAO-JEN CHANG (M.D.) – Internal Medicine Physician, NPI 1184797847
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,256 PEDIATRIC MEDICINE in TX
Provider Addresses for SHAO-JEN CHANG (M.D.)
123 MEDICAL PARK LN STE A
HUNTSVILLE, TX 773404981
Phone: (936) 291-2116
Fax: (936) 435-7824
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 44 Open Payments records for all available years, with a total value of $996.
Total Amount is formed as General ($996) + Research ($0) + Ownership ($0) = $996.
Last reported payment date: 2024-12-23 • Largest payer in this snapshot: Supernus Pharmaceuticals, Inc. ($201).
Total Amount
$996
General + Research + Ownership
Payments
44
Total payment records
General Amount
$996
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-23
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Supernus Pharmaceuticals, Inc. | $201 |
| AstraZeneca Pharmaceuticals LP | $149 |
| ABBVIE INC. | $109 |
| PFIZER INC. | $83 |
| Edwards Lifesciences Corporation | $45 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2007-06-07
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20070607000453 | I | Pediatric Medicine | TX | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 696 | 304 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 117 | 117 | $0 |
| 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 | $0 |
| G0008 | Administration of influenza virus vaccine | 55 | 55 | $0 |
Insurance plans in this area (ZIP 77340)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Family Practice | TX | |
| Family Practice | TX | |
| - | TX | |
| Family Practice | TX | |
| Family Practice | TX |
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