Ha Nguyen, D.O.
NPI 1174531560 · Internal Medicine Physician · Houston, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ha Nguyen, D.O. is a Internal Medicine Physician provider in Houston, TX (NPI 1174531560).
Provider details
- NPI number
- 1174531560
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 20A 9444 (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 tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$208 across 3 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
- 2006-08-03
- Last updated
- 2021-03-24
- Certified
- 2021-03-24
Frequently asked questions
- What is Ha Nguyen's NPI number?
- Ha Nguyen's National Provider Identifier (NPI) is 1174531560, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ha Nguyen's specialty?
- Ha Nguyen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ha Nguyen located?
- Ha Nguyen's practice location on file with NPPES is 4500 Washington Ave, Houston, TX 77007-5476.
- What is Ha Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Ha Nguyen is (713) 861-6490.
- Does Ha Nguyen accept Medicare?
- Ha Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ha Nguyen's NPI active?
- Yes — Ha Nguyen's NPI (1174531560) is active in the NPPES registry as of the last update on 2021-03-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.