Dr. John Hammes, MD
4060 Fourth Ave, Suite 220, San Diego, CA 92103 • +1-335-555-9361
Medical Education: Accredited U.S. Medical School (Class of 2000)
What This Doctor Actually Performs: CMS Medicare Utilization & San Diego Percentiles
NPI #1891766994 • CBSA Regional • Nephrology
Dr. John Hammes, MD (NPI #1891766994) practices Nephrology in San Diego, CA (92103) with sub-specialty concentration in 21 Active CMS HCPCS Codes, recording 2,351 annual CMS services across 432 distinct beneficiaries—placing this practice as a mid-cohort balanced caseload (52.17th San Diego percentile) (-0.21σ vs CA state mean, 57.02th statewide percentile).
Medicare Part B line-item claims for Dr. John Hammes (92103) place 99214 at the top of the practice ledger (1128 yearly units, 52.17th metro rank), rounded out by 90960 and 99215.
At 4060 Fourth Ave, Suite 220 (92103), Dr. John Hammes, MD accommodates direct self-pay scheduling (hybrid in-clinic and telehealth video consults) at ~$239.00 per new consult (4.57/5 bedside rating).
Clinical background for Dr. Hammes (MD, NPI #1891766994) includes accredited doctoral training (2000, 26 yrs in practice) and virtual + in-office availability across CA.
Compared against San Diego, CA Nephrology peers
2,351 annual services across 432 beneficiaries
Standard deviations from CA 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 | 1,128 | 52.17th | $236 – $323 |
| 90960 | Monthly Adult ESRD Renal Replacement Oversight | 517 | 54.17th | $472 – $647 |
| 99215 | High-Complexity Cardiorenal & Resistant Hypertension Visit | 423 | 47.17th | $344 – $472 |
| 99204 | New Patient Nephrology & Proteinuria Consultation | 282 | 51.17th | $324 – $445 |
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Dr. John Hammes, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Hammes National Provider Identifier | NPI #1891766994 (MD) | CMS NPPES Registry (92103) |
| Dr. Hammes San Diego CMS Volume Rank | 52.17th Pct (2,351 CMS svcs; Z -0.214σ) | CMS Medicare Part B (CA Nephrology) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (San Diego, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 12 min lobby wait | 20 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.57/5 Listening • 4.43/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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