DR. WILLIAM WYNN MCMULLEN (M.D.) – Ophthalmology Physician, NPI 1013911072
Ophthalmology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,544 OPHTHALMOLOGY in TX
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Provider Addresses for DR. WILLIAM WYNN MCMULLEN (M.D.)
East Medical Center Boulevard, Webster, Harris County, Texas, 77598, United States
SUITE 101
WEBSTER, TX 775984367
Phone: (281) 488-7213
Fax: (281) 488-1387
Type: Mailing
555, East Medical Center Boulevard, Webster, Harris County, Texas, 77598, United States
SUITE 101
WEBSTER, TX 775984367
Phone: (281) 488-7213
Fax: (281) 488-1387
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 28 Open Payments records for all available years, with a total value of $931.
Total Amount is formed as General ($931) + Research ($0) + Ownership ($0) = $931.
Last reported payment date: 2024-12-19 • Largest payer in this snapshot: Alcon Vision LLC ($544).
Total Amount
$931
General + Research + Ownership
Payments
28
Total payment records
General Amount
$931
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-19
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Alcon Vision LLC | $544 |
| ABBVIE INC. | $152 |
| Genentech USA, Inc. | $60 |
| Horizon Therapeutics plc | $51 |
| Astellas Pharma US Inc | $30 |
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: 2010-10-26
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 |
|---|---|---|---|---|
| I20101026000049 | I | Ophthalmology | 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 |
|---|---|---|---|---|
| 92134 | Imaging of retina | 1,741 | 735 | $0 |
| 67028 | Injection of drug into eye | 960 | 191 | $0 |
| 92014 | Established patient complete exam of visual system | 781 | 721 | $0 |
| J9035 | Injection, bevacizumab, 10 mg | 756 | 154 | $0 |
| J0178 | Injection, aflibercept, 1 mg | 642 | 70 | $0 |
Insurance plans in this area (ZIP 77598)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| OPHTHALMOLOGY | TX | 92012 | Eye and medical examination for diagnosis and treatment, established patient | 1335 | 624 |
| OPHTHALMOLOGY | TX | 92083 | Measurement of field of vision during daylight conditions | 73 | 72 |
| OPHTHALMOLOGY | TX | 92134 | Diagnostic imaging of retina | 2773 | 873 |
Group practice members
| Name | Specialty | State |
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| O P T O M E T R Y | TX | |
| O P T O M E T R Y | TX | |
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| O P H T H A L M O L O G Y | TX | |
| O P H T H A L M O L O G Y | TX | |
| - | TX | |
| O P H T H A L M O L O G Y | TX | |
| O P H T H A L M O L O G Y | NY | |
| O P H T H A L M O L O G Y | TX | |
| O P T O M E T R Y | TX |
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