Dr. Gregory Tchejeyan, MD
250 Lombard St Ste 1, Thousand Oaks, CA 91360 • +1-311-555-6563
Medical Education: Accredited U.S. Medical School (Class of 2012)
What This Doctor Actually Performs: CMS Medicare Utilization & Thousand Oaks Percentiles
NPI #1689668188 • CBSA Regional • Orthopedic Surgery
Dr. Gregory Tchejeyan, MD (NPI #1689668188) practices Orthopedic Surgery in Thousand Oaks, CA (91360) with sub-specialty concentration in 104 Active CMS HCPCS Codes, recording 21,529 annual CMS services across 657 distinct beneficiaries—placing this practice as a upper-quartile active clinical volume (77.78th Thousand Oaks percentile) (+1.45σ vs CA state mean, 96.38th statewide percentile).
Procedural volume for Dr. Tchejeyan is led by HCPCS 99213 (Focused Orthopedic Joint & Spine Mobility Evaluation — 1257 annual services, $40–$55 GPCI cash estimate), followed by CPT 20610 (Major Joint (Knee/Shoulder/Hip) Aspiration or Injection, 943/yr) and CPT 73562 (Radiologic Weight-Bearing 3-View Knee Examination, 663/yr).
Cash-pay intake data for NPI 1689668188 (250 Lombard St Ste 1, Thousand Oaks) indicates $239.00 typical out-of-pocket visit spend against a $239.00 locality benchmark, paired with 9-minute average reception wait and 4.47/5 biomarker openness.
Patients evaluating Dr. Gregory Tchejeyan in ZIP 91360 note 14 years of post-doctoral tenure (null, 2012) alongside 32.8 annual CMS procedures per patient.
Compared against Thousand Oaks, CA Orthopedic Surgery peers
21,529 annual services across 657 beneficiaries
Standard deviations from CA Orthopedic Surgery mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99213 | Focused Orthopedic Joint & Spine Mobility Evaluation | 1,257 | 77.78th | $40 – $55 |
| 20610 | Major Joint (Knee/Shoulder/Hip) Aspiration or Injection | 943 | 77.78th | $42 – $58 |
| 73562 | Radiologic Weight-Bearing 3-View Knee Examination | 663 | 72.78th | $25 – $40 |
| 99203 | New Patient Musculoskeletal Injury & Surgical Triage | 384 | 74.78th | $57 – $78 |
| 27447 | Total Knee Arthroplasty Joint Reconstruction | 244 | 78.78th | $368 – $504 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (104 HCPCS billing breadth) | 18,037 | 77.78th | $45 – $65 |
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Dr. Gregory Tchejeyan, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Tchejeyan National Provider Identifier | NPI #1689668188 (MD) | CMS NPPES Registry (91360) |
| Dr. Tchejeyan Thousand Oaks CMS Volume Rank | 77.78th Pct (21,529 CMS svcs; Z +1.453σ) | CMS Medicare Part B (CA Orthopedic Surgery) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Thousand Oaks, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 9 min lobby wait | 23 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.72/5 Listening • 4.47/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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