Hung Nguyen, D.O.
NPI 1447284526 · Family Medicine Physician · Orange, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hung Nguyen, D.O. is a Family Medicine Physician provider in Orange, CA (NPI 1447284526).
Provider details
- NPI number
- 1447284526
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20A8568 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
5,971 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 3,293 | $122 |
| Critical Care, First 30-74 Minutes99291 | 775 | $217 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 643 | $114 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 491 | $179 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 389 | $119 |
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More99306 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 204 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 660 | 163 |
| Amlodipine Besylate | 501 | 111 |
| Gabapentin | 458 | 84 |
| Levothyroxine Sodium | 411 | 94 |
| Apixabanbrand: Eliquis | 319 | 52 |
| Famotidine | 299 | 65 |
| Metformin Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$94 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-11
- Last updated
- 2025-04-28
- Certified
- 2025-04-28
Frequently asked questions
- What is Hung Nguyen's NPI number?
- Hung Nguyen's National Provider Identifier (NPI) is 1447284526, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hung Nguyen's specialty?
- Hung Nguyen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Hung Nguyen located?
- Hung Nguyen's practice location on file with NPPES is 438 E Katella Ave Ste F, Orange, CA 92867-4857.
- What is Hung Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Hung Nguyen is (714) 296-6264.
- Does Hung Nguyen accept Medicare?
- Hung Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hung Nguyen's NPI active?
- Yes — Hung Nguyen's NPI (1447284526) is active in the NPPES registry as of the last update on 2025-04-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.