Dr. Woo Sung Ahn, MD
20145 S Pioneer Blvd, Lakewood, CA 90715 • +1-265-555-5129
Medical Education: Accredited U.S. Medical School (Class of 2011)
What This Doctor Actually Performs: CMS Medicare Utilization & Lakewood Percentiles
NPI #1396807806 • CBSA Regional • Internal Medicine
Within the Lakewood, CA (CBSA local) Internal Medicine cohort, Dr. Woo Sung Ahn, MD with sub-specialty concentration in 10 Active CMS HCPCS Codes ranks at the 12.5th municipal percentile and 8.78th CA percentile (-0.11σ Z-score) based on 719 billed procedures for 105 patients.
Medicare Part B line-item claims for Dr. Woo Sung Ahn (90715) place 99214 at the top of the practice ledger (324 yearly units, 12.5th metro rank), rounded out by 99213 and 93000.
At 20145 S Pioneer Blvd (90715), Dr. Woo Sung Ahn, MD accommodates direct self-pay scheduling (hybrid in-clinic and telehealth video consults) at ~$239.00 per new consult (4.68/5 bedside rating).
NPI registry verification (#1396807806) confirms Dr. Woo Sung Ahn's MD standing serving CBSA 90715 with a 4.69/5 patient scorecard.
Compared against Lakewood, CA Internal Medicine peers
719 annual services across 105 beneficiaries
Standard deviations from CA 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 | 324 | 12.5th | $135 – $185 |
| 99213 | Established Preventive & Chronic Care Visit | 187 | 14.5th | $103 – $141 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 93 | 14.5th | $49 – $67 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 72 | 13.5th | $158 – $217 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 43 | 12th | $188 – $257 |
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Dr. Woo Sung Ahn, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Ahn National Provider Identifier | NPI #1396807806 (MD) | CMS NPPES Registry (90715) |
| Dr. Ahn Lakewood CMS Volume Rank | 12.50th Pct (719 CMS svcs; Z -0.107σ) | CMS Medicare Part B (CA Internal Medicine) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Lakewood, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 20 min lobby wait | 16 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.68/5 Listening • 4.71/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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