Dr. Maria Gonzalez-Mayda, MD
4921 Parkview Pl, Div IM Rheumatology, Ste 5c, Saint Louis, MO 63110 • +1-839-555-9238
Medical Education: Accredited U.S. Medical School (Class of 2009)
What This Doctor Actually Performs: CMS Medicare Utilization & Saint Louis Percentiles
NPI #1891958096 • CBSA Regional • Rheumatology
Dr. Maria Gonzalez-Mayda, MD (NPI #1891958096) practices Rheumatology in Saint Louis, MO (63110) with sub-specialty concentration in 31 Active CMS HCPCS Codes, recording 2,285 annual CMS services across 110 distinct beneficiaries—placing this practice as a focused low-volume boutique caseload (30.77th Saint Louis percentile) (-0.61σ vs MO state mean, 40.32th statewide percentile).
Medicare Part B line-item claims for Dr. Maria Gonzalez-Mayda (63110) place 99214 at the top of the practice ledger (88 yearly units, 30.77th metro rank), rounded out by 20610 and 96413.
For out-of-network patients contacting +1-839-555-9238, Dr. Gonzalez-Mayda's practice posts a $209.00 GPCI self-pay consult estimate ($209.00 patient-logged median, 4.86/5 composite reality score over 17 submissions).
Spanning 17 years of clinical practice following 2009 graduation from medical training, Dr. Maria Gonzalez-Mayda integrates 31 Active CMS HCPCS Codes diagnostics for Saint Louis metro patients.
Compared against Saint Louis, MO Rheumatology peers
2,285 annual services across 110 beneficiaries
Standard deviations from MO 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 | 88 | 30.77th | $51 – $70 |
| 20610 | Large Joint Synovial Arthrocentesis or Corticosteroid Injection | 40 | 27.77th | $41 – $56 |
| 96413 | Intravenous Biologic Infusion Therapy (First Hour) | 29 | 26.77th | $70 – $97 |
| 76881 | Complete Joint Synovitis High-Resolution Ultrasound | 19 | 29.77th | $53 – $73 |
| 99204 | New Patient Autoimmune & Rheumatology Diagnostic Workup | 15 | 35.77th | $70 – $97 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (31 HCPCS billing breadth) | 2,093 | 30.77th | $45 – $65 |
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Dr. Maria Gonzalez-Mayda, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Gonzalez-Mayda National Provider Identifier | NPI #1891958096 (MD) | CMS NPPES Registry (63110) |
| Dr. Gonzalez-Mayda Saint Louis CMS Volume Rank | 30.77th Pct (2,285 CMS svcs; Z -0.613σ) | CMS Medicare Part B (MO Rheumatology) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Saint Louis, MO) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 21 min lobby wait | 17 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.68/5 Listening • 4.90/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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