Dr. Mark Johnson, MD
1000 Wall Street, Ann Arbor, MI 48105 • +1-236-555-1801
Medical Education: Accredited U.S. Medical School (Class of 1992)
What This Doctor Actually Performs: CMS Medicare Utilization & Ann Arbor Percentiles
NPI #1083622773 • CBSA Regional • Ophthalmology
Operating out of Ann Arbor, MI (1000 Wall Street), Ophthalmology clinician Dr. Mark Johnson, MD (accredited MD/DO training, 1992) maintains a focused low-volume boutique caseload (14.63th Ann Arbor percentile) (4.2th MI percentile; Z-score -0.48σ across 747 documented services) with sub-specialty concentration in 21 Active CMS HCPCS Codes.
Procedural volume for Dr. Johnson is led by HCPCS 92014 (Comprehensive Ophthalmologic Slit-Lamp & Dilated Retinal Exam — 276 annual services, $126–$173 GPCI cash estimate), followed by CPT 92134 (Scanning Computerized Ophthalmic Retinal OCT Imaging, 194/yr) and CPT 92083 (Extended Threshold Visual Field Glaucoma Perimetry, 127/yr).
Cash-pay intake data for NPI 1083622773 (1000 Wall Street, Ann Arbor) indicates $209.00 typical out-of-pocket visit spend against a $209.00 locality benchmark, paired with 16-minute average reception wait and 4.88/5 biomarker openness.
Spanning 34 years of clinical practice following 1992 graduation from medical training, Dr. Mark Johnson integrates 21 Active CMS HCPCS Codes diagnostics for Ann Arbor metro patients.
Compared against Ann Arbor, MI Ophthalmology peers
747 annual services across 234 beneficiaries
Standard deviations from MI 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 | 276 | 14.63th | $126 – $173 |
| 92134 | Scanning Computerized Ophthalmic Retinal OCT Imaging | 194 | 19.63th | $69 – $95 |
| 92083 | Extended Threshold Visual Field Glaucoma Perimetry | 127 | 18.63th | $83 – $114 |
| 92004 | New Patient Complete Medical Eye & IOP Evaluation | 90 | 18.63th | $152 – $208 |
| 66984 | Extracapsular Cataract Removal w/ Intraocular Lens Implant | 60 | 19.63th | $555 – $761 |
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Dr. Mark Johnson, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Johnson National Provider Identifier | NPI #1083622773 (MD) | CMS NPPES Registry (48105) |
| Dr. Johnson Ann Arbor CMS Volume Rank | 14.63th Pct (747 CMS svcs; Z -0.479σ) | CMS Medicare Part B (MI Ophthalmology) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Ann Arbor, MI) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 16 min lobby wait | 6 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.73/5 Listening • 4.88/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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