DR. NIANZHOU XIAO (M.D.) – Pediatric Nephrology Physician, NPI 1659504959
Pediatric Nephrology Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
2,386 PEDIATRIC MEDICINE in CA
Provider Addresses for DR. NIANZHOU XIAO (M.D.)
9300 VALLEY CHILDRENS PL # SE13
MADERA, CA 936368761
Phone: (559) 353-5770
Fax: (559) 353-8361
Type: Mailing
9300 VALLEY CHILDRENS PL DEPT OF
MADERA, CA 936368761
Phone: (559) 353-5770
Fax: (559) 353-8361
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $66.
Total Amount is formed as General ($66) + Research ($0) + Ownership ($0) = $66.
Last reported payment date: 2024-10-24 • Largest payer in this snapshot: AKEBIA THERAPEUTICS INC ($53).
Total Amount
$66
General + Research + Ownership
Payments
2
Total payment records
General Amount
$66
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-24
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AKEBIA THERAPEUTICS INC | $53 |
| Alexion Pharmaceuticals, Inc. | $14 |
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: 2019-07-23
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 |
|---|---|---|---|---|
| I20190723000939 | I | Pediatric Medicine | CA | 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 93636)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| N E P H R O L O G Y | CA | |
| P A T H O L O G Y | CA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | CA | |
| Pediatric Medicine, Cardiovascular Disease (Cardiology) | CA | |
| H E M A T O L O G Y/ O N C O L O G Y | NV | |
| N E U R O L O G Y | CA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | CA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | CA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | NC | |
| Medical Genetics And Genomics | CA |
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