Hien Nghiem, MD
NPI 1689754855 · Family Medicine Physician · Irvine, CA
Hien Nghiem, MD is a Family Medicine Physician provider in Irvine, CA (NPI 1689754855).
Provider details
- NPI number
- 1689754855
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 000000A81562 (CA)
Specialties & taxonomies
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.
$31 across 1 record (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
- 2006-10-16
- Last updated
- 2013-08-13
Frequently asked questions
- What is Hien Nghiem's NPI number?
- Hien Nghiem's National Provider Identifier (NPI) is 1689754855, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hien Nghiem's specialty?
- Hien Nghiem is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Hien Nghiem located?
- Hien Nghiem's practice location on file with NPPES is 4900 Barranca Pkwy Ste 103, Irvine, CA 92604-8603.
- What is Hien Nghiem's phone number?
- The practice phone number listed in the NPPES registry for Hien Nghiem is (949) 791-3103.
- Is Hien Nghiem's NPI active?
- Yes — Hien Nghiem's NPI (1689754855) is active in the NPPES registry as of the last update on 2013-08-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.