Dr. William Mosier, MD
265 Laguna Rd, Fullerton, CA 92835 • +1-407-555-6787
Medical Education: Accredited U.S. Medical School (Class of 2015)
What This Doctor Actually Performs: CMS Medicare Utilization & Fullerton Percentiles
NPI #1063553378 • CBSA Regional • Ophthalmology
Dr. William Mosier, MD (NPI #1063553378) practices Ophthalmology in Fullerton, CA (92835) with sub-specialty concentration in 18 Active CMS HCPCS Codes, recording 2,774 annual CMS services across 905 distinct beneficiaries—placing this practice as a mid-cohort balanced caseload (41.67th Fullerton percentile) (-0.31σ vs CA state mean, 46.31th statewide percentile).
Among 5 tracked CMS fee-schedule codes for Dr. Mosier (averaging 3.1 services per beneficiary), 92014 (Comprehensive Ophthalmologic Slit-Lamp & Dilated Retinal Exam) represents 37% of tracked volume (1026 encounters), paired with 92134 (721x).
Self-pay new patient consultations with Dr. Mosier (CPT 99204 GPCI-adjusted benchmark) estimate around $239.00 (community reported average: $239.00) with hybrid in-clinic and telehealth video consults, 10-minute average reception wait, and a 4.41/5 modern protocol openness score across 14 patient logs.
Patients evaluating Dr. William Mosier in ZIP 92835 note 11 years of post-doctoral tenure (null, 2015) alongside 3.1 annual CMS procedures per patient.
Compared against Fullerton, CA Ophthalmology peers
2,774 annual services across 905 beneficiaries
Standard deviations from CA Ophthalmology mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 92014 | Comprehensive Ophthalmologic Slit-Lamp & Dilated Retinal Exam | 1,026 | 41.67th | $172 – $236 |
| 92134 | Scanning Computerized Ophthalmic Retinal OCT Imaging | 721 | 42.67th | $95 – $130 |
| 92083 | Extended Threshold Visual Field Glaucoma Perimetry | 472 | 41.67th | $114 – $156 |
| 92004 | New Patient Complete Medical Eye & IOP Evaluation | 333 | 46.67th | $207 – $284 |
| 66984 | Extracapsular Cataract Removal w/ Intraocular Lens Implant | 222 | 46.67th | $758 – $1039 |
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Dr. William Mosier, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Mosier National Provider Identifier | NPI #1063553378 (MD) | CMS NPPES Registry (92835) |
| Dr. Mosier Fullerton CMS Volume Rank | 41.67th Pct (2,774 CMS svcs; Z -0.313σ) | CMS Medicare Part B (CA Ophthalmology) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Fullerton, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 10 min lobby wait | 14 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.95/5 Listening • 4.41/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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