Dr. Elizabeth Nghiem, MD
11160 Warner Ave, Suite 323, Fountain Valley, CA 92708 • +1-311-555-6618
Medical Education: Accredited U.S. Medical School (Class of 2014)
What This Doctor Actually Performs: CMS Medicare Utilization & Fountain Valley Percentiles
NPI #1083626212 • CBSA Regional • Infectious Disease
Operating out of Fountain Valley, CA (11160 Warner Ave, Suite 323), Infectious Disease clinician Dr. Elizabeth Nghiem, MD (accredited MD/DO training, 2014) maintains a upper-quartile active clinical volume (80th Fountain Valley percentile) (87.26th CA percentile; Z-score -0.01σ across 5,968 documented services) with sub-specialty concentration in 18 Active CMS HCPCS Codes.
Procedural volume for Dr. Nghiem is led by HCPCS 99214 (Moderate-to-High Complexity Internal Medicine Follow-Up — 2686 annual services, $174–$239 GPCI cash estimate), followed by CPT 99213 (Established Preventive & Chronic Care Visit, 1552/yr) and CPT 93000 (In-Office 12-Lead Resting Electrocardiogram, 776/yr).
Uninsured and high-deductible cash patients visiting Dr. Elizabeth Nghiem in Fountain Valley (92708) face an estimated $239.00 initial evaluation fee at 11160 Warner Ave, Suite 323 (hybrid in-clinic and telehealth video consults; 17-minute average reception wait; bedside manner 4.63/5 from 19 verified reports).
Credentialed as an MD specialist with 12 years post-graduation experience since completing medical school at an LCME/COCA institution (2014), Dr. Nghiem coordinates 18 Active CMS HCPCS Codes workups from 11160 Warner Ave, Suite 323 (+1-311-555-6618).
Compared against Fountain Valley, CA Infectious Disease peers
5,968 annual services across 690 beneficiaries
Standard deviations from CA Infectious Disease 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 | 2,686 | 80th | $174 – $239 |
| 99213 | Established Preventive & Chronic Care Visit | 1,552 | 85th | $133 – $183 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 776 | 80th | $64 – $87 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 597 | 83th | $205 – $281 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 358 | 82th | $243 – $333 |
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Dr. Elizabeth Nghiem, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Nghiem National Provider Identifier | NPI #1083626212 (MD) | CMS NPPES Registry (92708) |
| Dr. Nghiem Fountain Valley CMS Volume Rank | 80.00th Pct (5,968 CMS svcs; Z -0.007σ) | CMS Medicare Part B (CA Infectious Disease) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Fountain Valley, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 17 min lobby wait | 19 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.63/5 Listening • 4.78/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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