Dr. Armistead Williams, MD
521 W 57th St, 4th Floor, New York, NY 10019 • +1-894-555-4416
Medical Education: Accredited U.S. Medical School (Class of 2006)
What This Doctor Actually Performs: CMS Medicare Utilization & New York Percentiles
NPI #1073580908 • CBSA 35620 • Nephrology
Dr. Armistead Williams, MD (NPI #1073580908) practices Nephrology in New York, NY (10019) with sub-specialty concentration in 43 Active CMS HCPCS Codes, recording 184,686 annual CMS services across 331 distinct beneficiaries—placing this practice as a top-decile high-throughput specialist (98.86th percentile in New York) (+16.45σ vs NY state mean, 99.75th statewide percentile).
Dr. Williams's longitudinal care intensity (558.0 billed units per patient across 331 individuals) centers on 99214 (1249 annual units) and 90960 ($168–$230 cash range).
For out-of-network patients contacting +1-894-555-4416, Dr. Williams's practice posts a $239.00 GPCI self-pay consult estimate ($239.00 patient-logged median, 4.52/5 composite reality score over 11 submissions).
From 521 W 57th St, 4th Floor in New York (+1-894-555-4416), Dr. Williams, MD (20-year clinical track record) delivers 43 Active CMS HCPCS Codes care.
Top 10% Nephrology volume leader in New York, NY
184,686 annual services across 331 beneficiaries
Standard deviations from NY Nephrology mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Chronic Kidney Disease eGFR, uACR & Electrolyte Management | 1,249 | 98.86th | $84 – $115 |
| 90960 | Monthly Adult ESRD Renal Replacement Oversight | 572 | 99.5th | $168 – $230 |
| 99215 | High-Complexity Cardiorenal & Resistant Hypertension Visit | 468 | 99.5th | $122 – $167 |
| 99204 | New Patient Nephrology & Proteinuria Consultation | 312 | 96.86th | $115 – $158 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (43 HCPCS billing breadth) | 182,084 | 98.86th | $72 – $104 |
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Dr. Armistead Williams, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Williams National Provider Identifier | NPI #1073580908 (MD) | CMS NPPES Registry (10019) |
| Dr. Williams New York CMS Volume Rank | 98.86th Pct (184,686 CMS svcs; Z +16.454σ) | CMS Medicare Part B (NY Nephrology) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (New York, NY) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 19 min lobby wait | 11 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.65/5 Listening • 4.92/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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