BRIAN NAIDRIN CHANG (M.D.) – Clinical Pathology Physician, NPI 1457609190
Clinical Pathology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
190 PATHOLOGY in IA
Provider Addresses for BRIAN NAIDRIN CHANG (M.D.)
200 Hawkins Dr
Department of Pathology
Iowa City, IA 522421009
Phone: (319) 384-8054
Fax: (319) 467-5193
Type: Location
P O BOX 4439
HOUSTON, TX 772104439
Phone: (713) 792-2991
Type: Mailing
1515 HOLCOMBE BLVD
HOUSTON, TX 770304009
Phone: (713) 792-6161
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $174.
Total Amount is formed as General ($174) + Research ($0) + Ownership ($0) = $174.
Last reported payment date: 2024-07-23 • Largest payer in this snapshot: 3-D Matrix, Inc. ($174).
Total Amount
$174
General + Research + Ownership
Payments
1
Total payment records
General Amount
$174
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-07-23
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| 3-D Matrix, Inc. | $174 |
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: 2017-08-09
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 |
|---|---|---|---|---|
| I20170809000583 | I | Pathology | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 52242)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | TX | |
| P A T H O L O G Y | CA | |
| P A T H O L O G Y | TX | |
| P A T H O L O G Y | TX | |
| - | TX | |
| - | TX | |
| P A T H O L O G Y | TX | |
| P A T H O L O G Y | TX | |
| P A T H O L O G Y | TX | |
| P A T H O L O G Y | LA |
Reviews
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