Dr. David Chappell, MD
141 Lynch Creek Way, Suite A, Petaluma, CA 94954 • +1-688-555-7030
Medical Education: Accredited U.S. Medical School (Class of 1994)
What This Doctor Actually Performs: CMS Medicare Utilization & Petaluma Percentiles
NPI #1598732463 • CBSA Regional • Endocrinology
Operating out of Petaluma, CA (141 Lynch Creek Way, Suite A), Endocrinology clinician Dr. David Chappell, MD (accredited MD/DO training, 1994) maintains a top-decile high-throughput specialist (99th percentile in Petaluma) (47.61th CA percentile; Z-score -0.45σ across 2,449 documented services) with sub-specialty concentration in 24 Active CMS HCPCS Codes.
Procedural volume for Dr. Chappell is led by HCPCS 99214 (Complex Endocrine, Thyroid & Metabolic Biomarker Management — 984 annual services, $133–$182 GPCI cash estimate), followed by CPT 95251 (Ambulatory Continuous Glucose Monitoring (CGM) Data Analysis, 492/yr) and CPT 76536 (High-Resolution Thyroid & Parathyroid Neck Ultrasound, 358/yr).
For out-of-network patients contacting +1-688-555-7030, Dr. Chappell's practice posts a $239.00 GPCI self-pay consult estimate ($239.00 patient-logged median, 4.57/5 composite reality score over 8 submissions).
Spanning 32 years of clinical practice following 1994 graduation from medical training, Dr. David Chappell integrates 24 Active CMS HCPCS Codes diagnostics for Petaluma metro patients.
Top 10% Endocrinology volume leader in Petaluma, CA
2,449 annual services across 203 beneficiaries
Standard deviations from CA Endocrinology mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Complex Endocrine, Thyroid & Metabolic Biomarker Management | 984 | 99th | $133 – $182 |
| 95251 | Ambulatory Continuous Glucose Monitoring (CGM) Data Analysis | 492 | 99.5th | $83 – $114 |
| 76536 | High-Resolution Thyroid & Parathyroid Neck Ultrasound | 358 | 99.5th | $160 – $220 |
| 99204 | Comprehensive New Patient Endocrine & Hormone Workup | 268 | 98th | $182 – $250 |
| 99215 | High-Complexity Multi-Hormone & Insulin Pump Titration | 134 | 99th | $204 – $280 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (24 HCPCS billing breadth) | 212 | 99th | $115 – $167 |
Are you Dr. David Chappell? Embed your Official DotMD Verification Badge (0-JS SVG)
Paste this lightweight SVG snippet onto your clinic bio page in Petaluma, CA:
<a href="https://dotmd.com/doctors/david-chappell-md-petaluma-ca-1598732463" title="Dr. David Chappell, MD - Verified CMS Utilization on DotMD"><img src="https://dotmd.com/badges/npi/1598732463.svg" alt="Dr. David Chappell Endocrinology Badge" width="280" height="72" /></a>
Dr. David Chappell, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Chappell National Provider Identifier | NPI #1598732463 (MD) | CMS NPPES Registry (94954) |
| Dr. Chappell Petaluma CMS Volume Rank | 99.00th Pct (2,449 CMS svcs; Z -0.453σ) | CMS Medicare Part B (CA Endocrinology) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Petaluma, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 18 min lobby wait | 8 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.94/5 Listening • 4.46/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
Ask our AI Specialists anything about Dr. David Chappell
Dr. Chappell Waiting-Room Q&A & Patient Experience Logs
Anonymous patient-submitted wait times, cash visit fees, and bedside manner discussions in Petaluma, CA.
Share your self-pay visit cost and lobby wait time—no account, email, or IP stored.
Filter Dr. David Chappell community threads and patient logs by age, biological sex, dosage, and treatment duration.