DR. ROY X ZHANG (MD) – Neurology Physician, NPI 1073959516
Neurology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,738 NEUROLOGY in TX
Provider Addresses for DR. ROY X ZHANG (MD)
6400 FANNIN ST STE 2070
HOUSTON, TX 770301541
Phone: (713) 486-8000
Fax: (713) 500-0665
Type: Mailing
6400 FANNIN ST STE 2800
HOUSTON, TX 770301534
Phone: (713) 486-8000
Fax: (713) 500-0665
Type: Location
903 S Newcomb Ave Apt 106
Sioux Falls, SD 571065725
Phone: (605) 660-6498
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2020-08-26
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20180724003893 | I | Neurology | AZ | TBD |
| I20200826002419 | I | Neurology | 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 |
|---|---|---|---|---|
| 99291 | Critical care, first 30-74 minutes | 331 | 146 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 70 | 45 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 48 | 33 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 24 | 24 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 16 | 16 | $0 |
Insurance plans in this area (ZIP 77030)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CA | |
| Internal Medicine | AZ | |
| Certified Registered Nurse Anesthetist (Crna) | CA | |
| - | AZ | |
| Diagnostic Radiology | AZ | |
| Diagnostic Radiology | AZ | |
| Hospitalist, Internal Medicine | CA | |
| Internal Medicine | AZ | |
| Certified Registered Nurse Anesthetist (Crna) | AZ | |
| Certified Registered Nurse Anesthetist (Crna) | AZ |
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