Dr. John Chamberlain, MD
401 Parnassus Ave, Box Adm, San Francisco, CA 94143 • +1-894-555-1261
Medical Education: Accredited U.S. Medical School (Class of 2018)
What This Doctor Actually Performs: CMS Medicare Utilization & San Francisco Percentiles
NPI #1114036480 • CBSA 41860 • Psychiatry
Within the San Francisco, CA (CBSA 41860) Psychiatry cohort, Dr. John Chamberlain, MD with sub-specialty concentration in 8 Active CMS HCPCS Codes ranks at the 6.25th municipal percentile and 11.91th CA percentile (-0.40σ Z-score) based on 746 billed procedures for 165 patients.
Dr. Chamberlain's longitudinal care intensity (4.5 billed units per patient across 165 individuals) centers on 99214 (328 annual units) and 90833 ($138–$189 cash range).
Cash-pay intake data for NPI 1114036480 (401 Parnassus Ave, Box Adm, San Francisco) indicates $250.00 typical out-of-pocket visit spend against a $250.00 locality benchmark, paired with 16-minute average reception wait and 4.78/5 biomarker openness.
From 401 Parnassus Ave, Box Adm in San Francisco (+1-894-555-1261), Dr. Chamberlain, MD (8-year clinical track record) delivers 8 Active CMS HCPCS Codes care.
Compared against San Francisco, CA Psychiatry peers
746 annual services across 165 beneficiaries
Standard deviations from CA Psychiatry mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Psychopharmacology Medication & Symptom Titration Visit | 328 | 12th | $191 – $262 |
| 90833 | Add-On Focused Psychotherapy w/ Medical Evaluation (30 min) | 209 | 12th | $138 – $189 |
| 99213 | Established Behavioral Health Maintenance Follow-Up | 119 | 12th | $146 – $200 |
| 90792 | Comprehensive Psychiatric Diagnostic & Medical Evaluation | 90 | 12th | $300 – $411 |
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Dr. John Chamberlain, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Chamberlain National Provider Identifier | NPI #1114036480 (MD) | CMS NPPES Registry (94143) |
| Dr. Chamberlain San Francisco CMS Volume Rank | 6.25th Pct (746 CMS svcs; Z -0.399σ) | CMS Medicare Part B (CA Psychiatry) |
| Fair Cash-Pay New-Patient Benchmark | $250.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (San Francisco, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $250.00 avg paid • 16 min lobby wait | 8 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.64/5 Listening • 4.78/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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