William Mcmullen, M.D.
NPI 1013911072 · Ophthalmology Physician · Webster, TX
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Mcmullen, M.D. is a Ophthalmology Physician provider in Webster, TX (NPI 1013911072).
Provider details
- NPI number
- 1013911072
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- H2595 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
21 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
4,143 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Imaging of Retina92134 | 1,668 | $41 |
| Injection of Drug Into Eye67028 | 942 | $130 |
| Established Patient Complete Exam of Visual System92014 | 647 | $129 |
| Established Patient Problem Focused Exam of Visual System92012 | 419 | $91 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 126 | $43 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 125 | $562 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 732 | 177 |
| Prednisolone Acetate | 498 | 369 |
| Ofloxacin | 423 | 350 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 162 | 40 |
| Timolol Maleate | 156 | 53 |
| Ketorolac Tromethamine | 74 | 36 |
| Brimonidine Tartrate | 67 | 21 |
| Dorzolamide Hcl | 36 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$595 across 13 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-08
- Last updated
- 2022-10-25
- Certified
- 2022-10-25
Frequently asked questions
- What is William Mcmullen's NPI number?
- William Mcmullen's National Provider Identifier (NPI) is 1013911072, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Mcmullen's specialty?
- William Mcmullen is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is William Mcmullen located?
- William Mcmullen's practice location on file with NPPES is 555 E Medical Center Blvd, Webster, TX 77598-4367.
- What is William Mcmullen's phone number?
- The practice phone number listed in the NPPES registry for William Mcmullen is (281) 488-7213.
- Does William Mcmullen accept Medicare?
- William Mcmullen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Mcmullen's NPI active?
- Yes — William Mcmullen's NPI (1013911072) is active in the NPPES registry as of the last update on 2022-10-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.