Dr. Marilyn Tan, MD
300 Pasteur DR, Stanford, CA 94305 • +1-710-555-1861
Medical Education: Accredited U.S. Medical School (Class of 1997)
What This Doctor Actually Performs: CMS Medicare Utilization & Stanford Percentiles
NPI #1770899395 • CBSA Regional • Endocrinology
Anchored in Stanford, CA 94305, Dr. Marilyn Tan, MD (NPI 1770899395) logged 2,277 annual procedures (mid-cohort balanced caseload (50th Stanford percentile), 44.15th CA percentile, -0.47σ) with sub-specialty concentration in 14 Active CMS HCPCS Codes.
Among 5 tracked CMS fee-schedule codes for Dr. Tan (averaging 5.3 services per beneficiary), 99214 (Complex Endocrine, Thyroid & Metabolic Biomarker Management) represents 44% of tracked volume (1002 encounters), paired with 95251 (501x).
At 300 Pasteur DR (94305), Dr. Marilyn Tan, MD accommodates direct self-pay scheduling (hybrid in-clinic and telehealth video consults) at ~$239.00 per new consult (4.72/5 bedside rating).
Spanning 29 years of clinical practice following 1997 graduation from medical training, Dr. Marilyn Tan integrates 14 Active CMS HCPCS Codes diagnostics for Stanford metro patients.
Compared against Stanford, CA Endocrinology peers
2,277 annual services across 429 beneficiaries
Standard deviations from CA Endocrinology mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Complex Endocrine, Thyroid & Metabolic Biomarker Management | 1,002 | 50th | $192 – $263 |
| 95251 | Ambulatory Continuous Glucose Monitoring (CGM) Data Analysis | 501 | 45th | $120 – $165 |
| 76536 | High-Resolution Thyroid & Parathyroid Neck Ultrasound | 364 | 54th | $232 – $318 |
| 99204 | Comprehensive New Patient Endocrine & Hormone Workup | 273 | 55th | $264 – $362 |
| 99215 | High-Complexity Multi-Hormone & Insulin Pump Titration | 137 | 54th | $296 – $406 |
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Dr. Marilyn Tan, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Tan National Provider Identifier | NPI #1770899395 (MD) | CMS NPPES Registry (94305) |
| Dr. Tan Stanford CMS Volume Rank | 50.00th Pct (2,277 CMS svcs; Z -0.467σ) | CMS Medicare Part B (CA Endocrinology) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Stanford, 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 • 4.87/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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