Internal Medicine • Upland, CA 91786 • NPI #1144273491

Dr. Tan Nguyen, MD

1310 San Bernardino Rd, Suite 207, Upland, CA 91786 • +1-214-555-2240

Medical Education: Accredited U.S. Medical School (Class of 2005)

84 Active CMS HCPCS Codes
4.85/5
Waiting-Room Score
4 patient logs
$239.00
Fair Cash-Pay Benchmark

What This Doctor Actually Performs: CMS Medicare Utilization & Upland Percentiles

NPI #1144273491 • CBSA Regional • Internal Medicine

Dr. Tan Nguyen DotMD Verification Badge

CMS Medicare Part B utilization records credit Dr. Tan Nguyen (MD, NPI 1144273491) at 1310 San Bernardino Rd, Suite 207 in Upland with 45,981 annual clinical services (309 beneficiaries), corresponding to a +1.23σ regional deviation and upper-quartile active clinical volume (85.71th Upland percentile) with sub-specialty concentration in 84 Active CMS HCPCS Codes.

Medicare Part B line-item claims for Dr. Tan Nguyen (91786) place 99214 at the top of the practice ledger (2142 yearly units, 85.71th metro rank), rounded out by 99213 and 93000.

Cash-pay intake data for NPI 1144273491 (1310 San Bernardino Rd, Suite 207, Upland) indicates $239.00 typical out-of-pocket visit spend against a $239.00 locality benchmark, paired with 22-minute average reception wait and 4.92/5 biomarker openness.

From 1310 San Bernardino Rd, Suite 207 in Upland (+1-214-555-2240), Dr. Nguyen, MD (21-year clinical track record) delivers 84 Active CMS HCPCS Codes care.

Upland Percentile 85.71th

Compared against Upland, CA Internal Medicine peers

CA State Percentile 99.13th

45,981 annual services across 309 beneficiaries

Regional Volume Z-Score +1.226σ

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 2,142 85.71th $50 – $69
99213 Established Preventive & Chronic Care Visit 1,237 87.71th $39 – $54
93000 In-Office 12-Lead Resting Electrocardiogram 619 80.71th $25 – $40
G0439 Annual Preventive Wellness & Cardiometabolic Risk Assessment 476 90.71th $59 – $81
99204 Comprehensive New Patient Internal Medicine Diagnostic Visit 286 83.71th $70 – $96
96372 Therapeutic Subcutaneous/Intramuscular Injection Administration (84 HCPCS billing breadth) 41,222 85.71th $45 – $65
Are you Dr. Tan Nguyen? Embed your Official DotMD Verification Badge (0-JS SVG)

Paste this lightweight SVG snippet onto your clinic bio page in Upland, CA:

<a href="https://dotmd.com/doctors/tan-nguyen-md-upland-ca-1144273491" title="Dr. Tan Nguyen, MD - Verified CMS Utilization on DotMD"><img src="https://dotmd.com/badges/npi/1144273491.svg" alt="Dr. Tan Nguyen Internal Medicine Badge" width="280" height="72" /></a>

Dr. Tan Nguyen, MD Fair Cash-Pay & Waiting-Room Scorecard

Metric Verified Benchmark Source
Dr. Nguyen National Provider Identifier NPI #1144273491 (MD) CMS NPPES Registry (91786)
Dr. Nguyen Upland CMS Volume Rank 85.71th Pct (45,981 CMS svcs; Z +1.226σ) CMS Medicare Part B (CA Internal Medicine)
Fair Cash-Pay New-Patient Benchmark $239.00 (CPT 99204 GPCI Benchmark) CMS Geographic Practice Cost Index (Upland, CA)
Waiting-Room Wait Time & Cash Friendliness $239.00 avg paid • 22 min lobby wait 4 Anonymous Patient Reports
Listens Without Rushing & Modern Protocol Score 4.67/5 Listening • 4.92/5 Modern Labs CMS Provider Practice Cohort
Patient-Reported Clinic Experience

“Waiting Room” Patient Reality Scorecard

Real Wait Time
22 min
Lobby check-in to exam room
Cash-Pay Friendliness
Upfront Self-Pay
GPCI fair visit est. $239.00
Listens Without Rushing
4.67/5
Patient communication rating
Modern Protocol Openness
4.92/5
Preventive labs, GLP-1s & HRT
Transparent AI Research Council • Grounded on NIH / FDA / PubMed Data

Ask our AI Specialists anything about Dr. Tan Nguyen

3 of 3 Free Questions Remaining

Other High-Volume Internal Medicine Specialists in Upland, CA

Ranked strictly by CMS Medicare volume

Dr. Nguyen Waiting-Room Q&A & Patient Experience Logs

Anonymous patient-submitted wait times, cash visit fees, and bedside manner discussions in Upland, CA.

15-Second Anonymous Micro-Log (Zero-PHI Architecture)

Share your self-pay visit cost and lobby wait time—no account, email, or IP stored.

“People Like Me” Cohort Filter (Zero-PHI)

Filter Dr. Tan Nguyen community threads and patient logs by age, biological sex, dosage, and treatment duration.

No threads match this cohort filter yet. Click + Start Anonymous Discussion to ask the community about Dr. Tan Nguyen.