Dr. David Mark, MD
1010 W Fremont Ave, Ste 200, Sunnyvale, CA 94087 • +1-268-555-8361
Medical Education: Accredited U.S. Medical School (Class of 1999)
What This Doctor Actually Performs: CMS Medicare Utilization & Sunnyvale Percentiles
NPI #1912900218 • CBSA Regional • Ophthalmology
Operating out of Sunnyvale, CA (1010 W Fremont Ave, Ste 200), Ophthalmology clinician Dr. David Mark, MD (accredited MD/DO training, 1999) maintains a focused low-volume boutique caseload (14.29th Sunnyvale percentile) (18.96th CA percentile; Z-score -0.40σ across 1,325 documented services) with sub-specialty concentration in 33 Active CMS HCPCS Codes.
Dr. Mark's longitudinal care intensity (3.3 billed units per patient across 400 individuals) centers on 92014 (490 annual units) and 92134 ($75–$103 cash range).
Cash-pay intake data for NPI 1912900218 (1010 W Fremont Ave, Ste 200, Sunnyvale) indicates $239.00 typical out-of-pocket visit spend against a $239.00 locality benchmark, paired with 13-minute average reception wait and 4.61/5 biomarker openness.
Credentialed as an MD specialist with 27 years post-graduation experience since completing medical school at an LCME/COCA institution (1999), Dr. Mark coordinates 33 Active CMS HCPCS Codes workups from 1010 W Fremont Ave, Ste 200 (+1-268-555-8361).
Compared against Sunnyvale, CA Ophthalmology peers
1,325 annual services across 400 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 | 490 | 14.29th | $136 – $187 |
| 92134 | Scanning Computerized Ophthalmic Retinal OCT Imaging | 345 | 12th | $75 – $103 |
| 92083 | Extended Threshold Visual Field Glaucoma Perimetry | 225 | 19.29th | $90 – $123 |
| 92004 | New Patient Complete Medical Eye & IOP Evaluation | 159 | 16.29th | $164 – $225 |
| 66984 | Extracapsular Cataract Removal w/ Intraocular Lens Implant | 106 | 12th | $601 – $823 |
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Dr. David Mark, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Mark National Provider Identifier | NPI #1912900218 (MD) | CMS NPPES Registry (94087) |
| Dr. Mark Sunnyvale CMS Volume Rank | 14.29th Pct (1,325 CMS svcs; Z -0.398σ) | CMS Medicare Part B (CA Ophthalmology) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Sunnyvale, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 13 min lobby wait | 19 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.66/5 Listening • 4.61/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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