Dr. John Marshburn, MD
1275 N Rose DR, Suite 112, Placentia, CA 92870 • +1-527-555-3851
Medical Education: Accredited U.S. Medical School (Class of 1996)
What This Doctor Actually Performs: CMS Medicare Utilization & Placentia Percentiles
NPI #1245246164 • CBSA Regional • Ophthalmology
Operating out of Placentia, CA (1275 N Rose DR, Suite 112), Ophthalmology clinician Dr. John Marshburn, MD (accredited MD/DO training, 1996) maintains a mid-cohort balanced caseload (50th Placentia percentile) (76.24th CA percentile; Z-score -0.10σ across 6,505 documented services) with sub-specialty concentration in 18 Active CMS HCPCS Codes.
Dr. Marshburn's longitudinal care intensity (6.5 billed units per patient across 1002 individuals) centers on 92014 (2407 annual units) and 92134 ($69–$95 cash range).
At 1275 N Rose DR, Suite 112 (92870), Dr. John Marshburn, MD accommodates direct self-pay scheduling (hybrid in-clinic and telehealth video consults) at ~$239.00 per new consult (4.81/5 bedside rating).
Spanning 30 years of clinical practice following 1996 graduation from medical training, Dr. John Marshburn integrates 18 Active CMS HCPCS Codes diagnostics for Placentia metro patients.
Compared against Placentia, CA Ophthalmology peers
6,505 annual services across 1,002 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 | 2,407 | 50th | $125 – $172 |
| 92134 | Scanning Computerized Ophthalmic Retinal OCT Imaging | 1,691 | 46th | $69 – $95 |
| 92083 | Extended Threshold Visual Field Glaucoma Perimetry | 1,106 | 52th | $83 – $113 |
| 92004 | New Patient Complete Medical Eye & IOP Evaluation | 781 | 48th | $151 – $206 |
| 66984 | Extracapsular Cataract Removal w/ Intraocular Lens Implant | 520 | 52th | $552 – $756 |
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Dr. John Marshburn, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Marshburn National Provider Identifier | NPI #1245246164 (MD) | CMS NPPES Registry (92870) |
| Dr. Marshburn Placentia CMS Volume Rank | 50.00th Pct (6,505 CMS svcs; Z -0.096σ) | CMS Medicare Part B (CA Ophthalmology) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Placentia, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 10 min lobby wait | 22 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.81/5 Listening • 4.61/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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