Dr. Mark Tan, MD
222 Middle Country Road, Suite 312, Smithtown, NY 11787 • +1-506-555-1143
Medical Education: Accredited U.S. Medical School (Class of 2008)
What This Doctor Actually Performs: CMS Medicare Utilization & Smithtown Percentiles
NPI #1083770580 • CBSA Regional • Rheumatology
Within the Smithtown, NY (CBSA local) Rheumatology cohort, Dr. Mark Tan, MD with sub-specialty concentration in 34 Active CMS HCPCS Codes ranks at the 16.67th municipal percentile and 84.21th NY percentile (+0.75σ Z-score) based on 72,076 billed procedures for 393 patients.
Procedural volume for Dr. Tan is led by HCPCS 99214 (Autoimmune Arthritis & Biologic/DMARD Safety Evaluation — 1558 annual services, $50–$69 GPCI cash estimate), followed by CPT 20610 (Large Joint Synovial Arthrocentesis or Corticosteroid Injection, 711/yr) and CPT 96413 (Intravenous Biologic Infusion Therapy (First Hour), 508/yr).
Self-pay new patient consultations with Dr. Tan (CPT 99204 GPCI-adjusted benchmark) estimate around $232.00 (community reported average: $232.00) with hybrid in-clinic and telehealth video consults, 22-minute average reception wait, and a 4.76/5 modern protocol openness score across 10 patient logs.
Patients evaluating Dr. Mark Tan in ZIP 11787 note 18 years of post-doctoral tenure (null, 2008) alongside 183.4 annual CMS procedures per patient.
Compared against Smithtown, NY Rheumatology peers
72,076 annual services across 393 beneficiaries
Standard deviations from NY Rheumatology mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Autoimmune Arthritis & Biologic/DMARD Safety Evaluation | 1,558 | 16.67th | $50 – $69 |
| 20610 | Large Joint Synovial Arthrocentesis or Corticosteroid Injection | 711 | 12.67th | $40 – $55 |
| 96413 | Intravenous Biologic Infusion Therapy (First Hour) | 508 | 12th | $69 – $95 |
| 76881 | Complete Joint Synovitis High-Resolution Ultrasound | 339 | 17.67th | $52 – $72 |
| 99204 | New Patient Autoimmune & Rheumatology Diagnostic Workup | 271 | 18.67th | $69 – $95 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (34 HCPCS billing breadth) | 68,689 | 16.67th | $45 – $65 |
Are you Dr. Mark Tan? Embed your Official DotMD Verification Badge (0-JS SVG)
Paste this lightweight SVG snippet onto your clinic bio page in Smithtown, NY:
<a href="https://dotmd.com/doctors/mark-tan-md-smithtown-ny-1083770580" title="Dr. Mark Tan, MD - Verified CMS Utilization on DotMD"><img src="https://dotmd.com/badges/npi/1083770580.svg" alt="Dr. Mark Tan Rheumatology Badge" width="280" height="72" /></a>
Dr. Mark Tan, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Tan National Provider Identifier | NPI #1083770580 (MD) | CMS NPPES Registry (11787) |
| Dr. Tan Smithtown CMS Volume Rank | 16.67th Pct (72,076 CMS svcs; Z +0.749σ) | CMS Medicare Part B (NY Rheumatology) |
| Fair Cash-Pay New-Patient Benchmark | $232.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Smithtown, NY) |
| Waiting-Room Wait Time & Cash Friendliness | $232.00 avg paid • 22 min lobby wait | 10 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.82/5 Listening • 4.76/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
Ask our AI Specialists anything about Dr. Mark Tan
Other High-Volume Rheumatology Specialists in Smithtown, NY
Ranked strictly by CMS Medicare volumeDr. Tan Waiting-Room Q&A & Patient Experience Logs
Anonymous patient-submitted wait times, cash visit fees, and bedside manner discussions in Smithtown, NY.
Share your self-pay visit cost and lobby wait time—no account, email, or IP stored.
Filter Dr. Mark Tan community threads and patient logs by age, biological sex, dosage, and treatment duration.