DR. WILLIAM G JR. IRR (MD) – Neurology Physician, NPI 1801858097
Neurology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,747 NEUROLOGY in TX
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Provider Addresses for DR. WILLIAM G JR. IRR (MD)
Memorial Hermann Medical Plaza, 6400, Fannin Street, Texas Medical Center, Houston, Harris County, Texas, 77030, United States
SUITE 2510
HOUSTON, TX 770301521
Phone: (713) 704-7100
Fax: (713) 704-1796
Type: Mailing
UT Physicians, 6700, West Loop South, Bellaire, Harris County, Texas, 77401, United States
SUITE 400
BELLAIRE, TX 774014104
Phone: (713) 795-4785
Fax: (713) 795-5426
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 513 Open Payments records for all available years, with a total value of $10,211.
Total Amount is formed as General ($10,211) + Research ($0) + Ownership ($0) = $10,211.
Last reported payment date: 2024-12-20 • Largest payer in this snapshot: ABBVIE INC. ($1,642).
Total Amount
$10,211
General + Research + Ownership
Payments
513
Total payment records
General Amount
$10,211
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-20
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $1,642 |
| UCB, Inc. | $1,054 |
| SK Life Science, Inc. | $744 |
| Lundbeck LLC | $435 |
| PFIZER INC. | $330 |
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: 2009-12-28
PECOS data refreshed: 2026-06-15
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 |
|---|---|---|---|---|
| I20091228000262 | 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 |
|---|---|---|---|---|
| J1568 | Injection, immune globulin, (octagam), intravenous, non-lyophilized (e.g., liquid), 500 mg | 12,140 | 12 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 622 | 365 | $0 |
| 96366 | Infusion into a vein for therapy, prevention, or diagnosis, each additional hour | 448 | 19 | $0 |
| 96365 | Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less | 160 | 22 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 148 | 112 | $0 |
Insurance plans in this area (ZIP 77030)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| NEUROLOGY | TX | 95910 | Nerve transmission studies, 7-8 studies | 34 | 34 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | NY | |
| Nurse Practitioner | MI | |
| Family Practice | TX | |
| Physician Assistant | NC | |
| Internal Medicine, Pediatric Medicine | NY | |
| Family Practice | FL | |
| Occupational Therapist In Private Practice | NC | |
| Internal Medicine | NC | |
| Qualified Speech Language Pathologist | FL | |
| Sleep Medicine | NC |
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