Tam Dang, M.D.
NPI 1275824799 · Emergency Medicine Physician · Corona, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tam Dang, M.D. is a Emergency Medicine Physician provider in Corona, CA (NPI 1275824799).
Provider details
- NPI number
- 1275824799
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A141987 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 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
791 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 | 326 | $184 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 244 | $9 |
| Critical Care, First 30-74 Minutes99291 | 137 | $227 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 45 | $127 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 21 | $187 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 18 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 29 | 29 |
| Ondansetronbrand: Ondansetron Odt | 27 | 26 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 19 | 17 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 16 | 16 |
| Oxycodone Hcl | 15 | 14 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 15 | 15 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-05-02
- Last updated
- 2016-07-22
Frequently asked questions
- What is Tam Dang's NPI number?
- Tam Dang's National Provider Identifier (NPI) is 1275824799, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tam Dang's specialty?
- Tam Dang is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Tam Dang located?
- Tam Dang's practice location on file with NPPES is 800 S Main St, Corona, CA 92882-3420.
- What is Tam Dang's phone number?
- The practice phone number listed in the NPPES registry for Tam Dang is (951) 737-4343.
- Does Tam Dang accept Medicare?
- Tam Dang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tam Dang's NPI active?
- Yes — Tam Dang's NPI (1275824799) is active in the NPPES registry as of the last update on 2016-07-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.