Dr. Lawrence Gassner, MD
18404 N Tatum Blvd, Ste 205, Phoenix, AZ 85032 • +1-214-555-5392
Medical Education: Accredited U.S. Medical School (Class of 2010)
What This Doctor Actually Performs: CMS Medicare Utilization & Phoenix Percentiles
NPI #1558379461 • CBSA 38060 • Internal Medicine
Operating out of Phoenix, AZ (18404 N Tatum Blvd, Ste 205), Internal Medicine clinician Dr. Lawrence Gassner, MD (accredited MD/DO training, 2010) maintains a focused low-volume boutique caseload (9.29th Phoenix percentile) (7.42th AZ percentile; Z-score -0.22σ across 695 documented services) with sub-specialty concentration in 20 Active CMS HCPCS Codes.
Procedural volume for Dr. Gassner is led by HCPCS 99214 (Moderate-to-High Complexity Internal Medicine Follow-Up — 269 annual services, $148–$203 GPCI cash estimate), followed by CPT 99213 (Established Preventive & Chronic Care Visit, 155/yr) and CPT 93000 (In-Office 12-Lead Resting Electrocardiogram, 78/yr).
Direct cash-pay transparency modeling sets Dr. Gassner's baseline new-consult rate near $207.00 in Phoenix, AZ (cash-pay accepted, in-person clinic visits only, 17-minute average reception wait).
Spanning 16 years of clinical practice following 2010 graduation from medical training, Dr. Lawrence Gassner integrates 20 Active CMS HCPCS Codes diagnostics for Phoenix metro patients.
Compared against Phoenix, AZ Internal Medicine peers
695 annual services across 199 beneficiaries
Standard deviations from AZ Internal Medicine mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Moderate-to-High Complexity Internal Medicine Follow-Up | 269 | 12th | $148 – $203 |
| 99213 | Established Preventive & Chronic Care Visit | 155 | 12th | $113 – $155 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 78 | 12th | $54 – $74 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 60 | 12th | $174 – $238 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 36 | 12th | $206 – $282 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (20 HCPCS billing breadth) | 97 | 9.29th | $134 – $194 |
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Dr. Lawrence Gassner, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Gassner National Provider Identifier | NPI #1558379461 (MD) | CMS NPPES Registry (85032) |
| Dr. Gassner Phoenix CMS Volume Rank | 9.29th Pct (695 CMS svcs; Z -0.220σ) | CMS Medicare Part B (AZ Internal Medicine) |
| Fair Cash-Pay New-Patient Benchmark | $207.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Phoenix, AZ) |
| Waiting-Room Wait Time & Cash Friendliness | $207.00 avg paid • 17 min lobby wait | 9 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.85/5 Listening • 4.70/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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