Dr. Andrew Chang, MD
18350 Roscoe Blvd, Suite 101, Northridge, CA 91325 • +1-837-555-1809
Medical Education: Accredited U.S. Medical School (Class of 2013)
What This Doctor Actually Performs: CMS Medicare Utilization & Northridge Percentiles
NPI #1003808494 • CBSA Regional • Ophthalmology
Within the Northridge, CA (CBSA local) Ophthalmology cohort, Dr. Andrew Chang, MD with sub-specialty concentration in 19 Active CMS HCPCS Codes ranks at the 25th municipal percentile and 22.55th CA percentile (-0.39σ Z-score) based on 1,524 billed procedures for 700 patients.
Procedural volume for Dr. Chang is led by HCPCS 92014 (Comprehensive Ophthalmologic Slit-Lamp & Dilated Retinal Exam — 564 annual services, $241–$330 GPCI cash estimate), followed by CPT 92134 (Scanning Computerized Ophthalmic Retinal OCT Imaging, 396/yr) and CPT 92083 (Extended Threshold Visual Field Glaucoma Perimetry, 259/yr).
Self-pay new patient consultations with Dr. Chang (CPT 99204 GPCI-adjusted benchmark) estimate around $239.00 (community reported average: $239.00) with in-person clinic visits only, 15-minute average reception wait, and a 4.71/5 modern protocol openness score across 15 patient logs.
Spanning 13 years of clinical practice following 2013 graduation from medical training, Dr. Andrew Chang integrates 19 Active CMS HCPCS Codes diagnostics for Northridge metro patients.
Compared against Northridge, CA Ophthalmology peers
1,524 annual services across 700 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 | 564 | 25th | $241 – $330 |
| 92134 | Scanning Computerized Ophthalmic Retinal OCT Imaging | 396 | 27th | $133 – $182 |
| 92083 | Extended Threshold Visual Field Glaucoma Perimetry | 259 | 23th | $159 – $218 |
| 92004 | New Patient Complete Medical Eye & IOP Evaluation | 183 | 27th | $290 – $397 |
| 66984 | Extracapsular Cataract Removal w/ Intraocular Lens Implant | 122 | 24th | $1060 – $1453 |
Are you Dr. Andrew Chang? Embed your Official DotMD Verification Badge (0-JS SVG)
Paste this lightweight SVG snippet onto your clinic bio page in Northridge, CA:
<a href="https://dotmd.com/doctors/andrew-chang-md-northridge-ca-1003808494" title="Dr. Andrew Chang, MD - Verified CMS Utilization on DotMD"><img src="https://dotmd.com/badges/npi/1003808494.svg" alt="Dr. Andrew Chang Ophthalmology Badge" width="280" height="72" /></a>
Dr. Andrew Chang, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Chang National Provider Identifier | NPI #1003808494 (MD) | CMS NPPES Registry (91325) |
| Dr. Chang Northridge CMS Volume Rank | 25.00th Pct (1,524 CMS svcs; Z -0.386σ) | CMS Medicare Part B (CA Ophthalmology) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Northridge, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 15 min lobby wait | 15 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.92/5 Listening • 4.71/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
Ask our AI Specialists anything about Dr. Andrew Chang
Other High-Volume Ophthalmology Specialists in Northridge, CA
Ranked strictly by CMS Medicare volumeDr. Chang Waiting-Room Q&A & Patient Experience Logs
Anonymous patient-submitted wait times, cash visit fees, and bedside manner discussions in Northridge, CA.
Share your self-pay visit cost and lobby wait time—no account, email, or IP stored.
Filter Dr. Andrew Chang community threads and patient logs by age, biological sex, dosage, and treatment duration.