Vinh Tonthat
NPI 1104245414 · Emergency Medicine Physician · Irvine, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Vinh Tonthat is a Emergency Medicine Physician provider in Irvine, CA (NPI 1104245414).
Provider details
- NPI number
- 1104245414
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
- License
- A161785 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
834 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 366 | $184 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 272 | $9 |
| Critical Care, First 30-74 Minutes99291 | 143 | $227 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 53 | $126 |
Typical Medicare-allowed amounts for these services range $9–$227 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ondansetronbrand: Ondansetron Odt | 46 | 45 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 28 | 28 |
| Cephalexin | 25 | 25 |
| Cefdinir | 15 | 14 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 14 | 14 |
| Meclizine Hcl | 13 | 13 |
| Prednisone | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-04-15
- Last updated
- 2023-01-13
- Certified
- 2023-01-13
Frequently asked questions
- What is Vinh Tonthat's NPI number?
- Vinh Tonthat's National Provider Identifier (NPI) is 1104245414, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Vinh Tonthat's specialty?
- Vinh Tonthat is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Vinh Tonthat located?
- Vinh Tonthat's practice location on file with NPPES is 16200 Sand Canyon Ave, Irvine, CA 92618-3714.
- What is Vinh Tonthat's phone number?
- The practice phone number listed in the NPPES registry for Vinh Tonthat is (949) 517-3010.
- Does Vinh Tonthat accept Medicare?
- Vinh Tonthat is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Vinh Tonthat's NPI active?
- Yes — Vinh Tonthat's NPI (1104245414) is active in the NPPES registry as of the last update on 2023-01-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.