Dr. Greenwood vs Dr. Onyima
Make an informed decision based on verified clinical facts. See which doctor spends more time listening in the exam room and charges fair prices aligned with standard insurance baselines.
Dr. Adam Greenwood
Anesthesiology · Washington, DC
Thorough Listener
Consistently devotes longer face-to-face evaluations. Ideal for complex medical concerns, multiple symptoms, or patients who value comprehensive discussion without feeling rushed.
How is appointment length calculated?
Visit durations reflect official documentation standards for Evaluation and Management (E/M) office billing codes (CPT 99202 through 99215).
Physicians who bill higher-level comprehensive visits (such as 99214 and 99215) consistently spend 30 to 45 minutes reviewing complex records and discussing care plans, whereas routine refill clinics predominantly bill briefer level 2 and 3 codes.
Dr. Chiemeka Onyima, M.D.
Anesthesiology · Washington, DC
Thorough Listener
Consistently devotes longer face-to-face evaluations. Ideal for complex medical concerns, multiple symptoms, or patients who value comprehensive discussion without feeling rushed.
How is appointment length calculated?
Visit durations reflect official documentation standards for Evaluation and Management (E/M) office billing codes (CPT 99202 through 99215).
Physicians who bill higher-level comprehensive visits (such as 99214 and 99215) consistently spend 30 to 45 minutes reviewing complex records and discussing care plans, whereas routine refill clinics predominantly bill briefer level 2 and 3 codes.
Higher Out-of-Pocket Billing Risk
This practice submits charges that average 3.8 times customary allowable rates. If you have not met your annual health insurance deductible, or if this doctor is out-of-network with your health plan, you may face significant balance billing.
- Confirm network status: Call your insurer to confirm this specific physician and office address are in-network.
- Request in-network labs: Before blood draws or biopsies, ask the nurse to send samples exclusively to an in-network commercial laboratory.
- Ask for a written estimate: Under the No Surprises Act, you are legally entitled to a Good Faith Estimate if you are self-pay or out-of-network.
🎯 Patient Verdict: Key Differences at a Glance
Dr. Greenwood averages 14 more minutes per appointment than Dr. Onyima. If you prioritize extensive discussion and question time, Dr. Greenwood offers a more unhurried experience.
Dr. Greenwood has a lower billing markup (3.16x vs. 3.81x). Patients with high deductibles or out-of-network coverage will likely incur lower balance bills with Dr. Greenwood.
Shared Clinical Procedures & Charges Comparison
| Procedure Description | Dr. Greenwood Charge | Dr. Onyima Charge | Standard Baseline |
|---|---|---|---|
| Medical Procedure HCPCS | $NaN | $NaN | $86 |
| Medical Procedure HCPCS | $NaN | $NaN | $130 |
| Medical Procedure HCPCS | $NaN | $NaN | $189 |
| Medical Procedure HCPCS | $NaN | $NaN | $84 |
| Medical Procedure HCPCS | $NaN | $NaN | $128 |