Hoang Anh Nguyen, M.D.
NPI 1407147440 · Hospitalist Physician · Orange, CA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hoang Anh Nguyen, M.D. is a Hospitalist Physician provider in Orange, CA (NPI 1407147440).
Provider details
- NPI number
- 1407147440
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A123992 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
777 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 338 | $131 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 172 | $86 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 110 | $127 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 94 | $191 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 31 | $90 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 21 |
Practice location
Mailing address
Additional practice locations (1)
- Uci Division of Nephrology and Hypertension333 City Blvd. W, Suite 400Orange, CA 92868-3217Phone: (714) 456-5142Fax: (714) 456-6034
Registry dates
- Enumerated
- 2011-04-25
- Last updated
- 2023-09-18
- Certified
- 2023-09-18
Frequently asked questions
- What is Hoang Anh Nguyen's NPI number?
- Hoang Anh Nguyen's National Provider Identifier (NPI) is 1407147440, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hoang Anh Nguyen's specialty?
- Hoang Anh Nguyen is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Hoang Anh Nguyen located?
- Hoang Anh Nguyen's practice location on file with NPPES is 101 the City Dr S, Orange, CA 92868-3201.
- What is Hoang Anh Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Hoang Anh Nguyen is (714) 880-7812.
- Does Hoang Anh Nguyen accept Medicare?
- Hoang Anh Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hoang Anh Nguyen's NPI active?
- Yes — Hoang Anh Nguyen's NPI (1407147440) is active in the NPPES registry as of the last update on 2023-09-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.