Dr. Mary St.john, MD
2719 Boundary St, Beaufort, SC 29906 • +1-896-555-6081
Medical Education: Accredited U.S. Medical School (Class of 1992)
What This Doctor Actually Performs: CMS Medicare Utilization & Beaufort Percentiles
NPI #1457553984 • CBSA Regional • Psychiatry
Anchored in Beaufort, SC 29906, Dr. Mary St.john, MD (NPI 1457553984) logged 694 annual procedures (top-decile high-throughput specialist (99th percentile in Beaufort), 9.62th SC percentile, -0.61σ) with sub-specialty concentration in 7 Active CMS HCPCS Codes.
Dr. St.john's longitudinal care intensity (23.9 billed units per patient across 29 individuals) centers on 99214 (305 annual units) and 90833 ($93–$128 cash range).
At 2719 Boundary St (29906), Dr. Mary St.john, MD accommodates direct self-pay scheduling (in-person clinic visits only) at ~$209.00 per new consult (4.82/5 bedside rating).
Spanning 34 years of clinical practice following 1992 graduation from medical training, Dr. Mary St.john integrates 7 Active CMS HCPCS Codes diagnostics for Beaufort metro patients.
Top 10% Psychiatry volume leader in Beaufort, SC
694 annual services across 29 beneficiaries
Standard deviations from SC 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 | 305 | 99th | $129 – $177 |
| 90833 | Add-On Focused Psychotherapy w/ Medical Evaluation (30 min) | 194 | 99.5th | $93 – $128 |
| 99213 | Established Behavioral Health Maintenance Follow-Up | 111 | 95th | $99 – $135 |
| 90792 | Comprehensive Psychiatric Diagnostic & Medical Evaluation | 83 | 99th | $203 – $278 |
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Dr. Mary St.john, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. St.john National Provider Identifier | NPI #1457553984 (MD) | CMS NPPES Registry (29906) |
| Dr. St.john Beaufort CMS Volume Rank | 99.00th Pct (694 CMS svcs; Z -0.608σ) | CMS Medicare Part B (SC Psychiatry) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Beaufort, SC) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 18 min lobby wait | 6 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.82/5 Listening • 4.42/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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