Dr. Mark Lapp, MD
14 Research Pl, North Chelmsford, MA 01863 • +1-425-555-2694
Medical Education: Accredited U.S. Medical School (Class of 2004)
What This Doctor Actually Performs: CMS Medicare Utilization & North Chelmsford Percentiles
NPI #1881664977 • CBSA Regional • Orthopedic Surgery
CMS Medicare Part B utilization records credit Dr. Mark Lapp (MD, NPI 1881664977) at 14 Research Pl in North Chelmsford with 7,109 annual clinical services (431 beneficiaries), corresponding to a +0.49σ regional deviation and focused low-volume boutique caseload (10th North Chelmsford percentile) with sub-specialty concentration in 69 Active CMS HCPCS Codes.
Medicare Part B line-item claims for Dr. Mark Lapp (01863) place 99213 at the top of the practice ledger (802 yearly units, 12th metro rank), rounded out by 20610 and 73562.
Cash-pay intake data for NPI 1881664977 (14 Research Pl, North Chelmsford) indicates $224.00 typical out-of-pocket visit spend against a $224.00 locality benchmark, paired with 19-minute average reception wait and 4.41/5 biomarker openness.
Patients evaluating Dr. Mark Lapp in ZIP 01863 note 22 years of post-doctoral tenure (null, 2004) alongside 16.5 annual CMS procedures per patient.
Compared against North Chelmsford, MA Orthopedic Surgery peers
7,109 annual services across 431 beneficiaries
Standard deviations from MA 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 | 802 | 12th | $71 – $98 |
| 20610 | Major Joint (Knee/Shoulder/Hip) Aspiration or Injection | 601 | 15th | $76 – $104 |
| 73562 | Radiologic Weight-Bearing 3-View Knee Examination | 423 | 13th | $43 – $58 |
| 99203 | New Patient Musculoskeletal Injury & Surgical Triage | 245 | 12th | $102 – $140 |
| 27447 | Total Knee Arthroplasty Joint Reconstruction | 156 | 12th | $659 – $903 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (69 HCPCS billing breadth) | 4,882 | 10th | $80 – $116 |
Are you Dr. Mark Lapp? Embed your Official DotMD Verification Badge (0-JS SVG)
Paste this lightweight SVG snippet onto your clinic bio page in North Chelmsford, MA:
<a href="https://dotmd.com/doctors/mark-lapp-md-north-chelmsford-ma-1881664977" title="Dr. Mark Lapp, MD - Verified CMS Utilization on DotMD"><img src="https://dotmd.com/badges/npi/1881664977.svg" alt="Dr. Mark Lapp Orthopedic Surgery Badge" width="280" height="72" /></a>
Dr. Mark Lapp, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Lapp National Provider Identifier | NPI #1881664977 (MD) | CMS NPPES Registry (01863) |
| Dr. Lapp North Chelmsford CMS Volume Rank | 10.00th Pct (7,109 CMS svcs; Z +0.495σ) | CMS Medicare Part B (MA Orthopedic Surgery) |
| Fair Cash-Pay New-Patient Benchmark | $224.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (North Chelmsford, MA) |
| Waiting-Room Wait Time & Cash Friendliness | $224.00 avg paid • 19 min lobby wait | 15 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.89/5 Listening • 4.41/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
Ask our AI Specialists anything about Dr. Mark Lapp
Other High-Volume Orthopedic Surgery Specialists in North Chelmsford, MA
Ranked strictly by CMS Medicare volumeDr. Lapp Waiting-Room Q&A & Patient Experience Logs
Anonymous patient-submitted wait times, cash visit fees, and bedside manner discussions in North Chelmsford, MA.
Share your self-pay visit cost and lobby wait time—no account, email, or IP stored.
Filter Dr. Mark Lapp community threads and patient logs by age, biological sex, dosage, and treatment duration.