Hien Nguyen, M.D.
NPI 1659441699 · Infectious Disease Physician · Clackamas, OR
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hien Nguyen, M.D. is a Infectious Disease Physician provider in Clackamas, OR (NPI 1659441699).
Provider details
- NPI number
- 1659441699
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD25722 (OR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cefadroxil | 46 | 14 |
| Rifampin | 30 | — |
| Amoxicillin | 29 | — |
| Azithromycin | 26 | — |
| Cephalexin | 26 | — |
| Doxycycline Monohydrate | 23 | — |
| Ethambutol Hcl | 21 | — |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 19 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-08
- Last updated
- 2015-02-17
Frequently asked questions
- What is Hien Nguyen's NPI number?
- Hien Nguyen's National Provider Identifier (NPI) is 1659441699, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hien Nguyen's specialty?
- Hien Nguyen is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Hien Nguyen located?
- Hien Nguyen's practice location on file with NPPES is 9900 Se Sunnyside Rd, Clackamas, OR 97015-9777.
- What is Hien Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Hien Nguyen is (503) 571-9130.
- Does Hien Nguyen accept Medicare?
- Hien Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hien Nguyen's NPI active?
- Yes — Hien Nguyen's NPI (1659441699) is active in the NPPES registry as of the last update on 2015-02-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.