Steve Nguyen DO Inc
NPI 1598943649 · Gastroenterology Physician · Rosemead, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steve Nguyen DO Inc is a Gastroenterology Physician organization in Rosemead, CA (NPI 1598943649).
Provider details
- NPI number
- 1598943649
- Entity type
- Organization
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Steve Nguyen, Physician(714) 548-8811
- License
- 20A7028 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-01-31
- Last updated
- 2025-08-26
- Certified
- 2025-08-26
Frequently asked questions
- What is Steve Nguyen DO Inc's NPI number?
- Steve Nguyen DO Inc's National Provider Identifier (NPI) is 1598943649, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Steve Nguyen DO Inc?
- Steve Nguyen DO Inc is classified in the NPPES registry as Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Steve Nguyen DO Inc located?
- Steve Nguyen DO Inc's practice location on file with NPPES is 9120 Valley Blvd, Rosemead, CA 91770-1920.
- What is Steve Nguyen DO Inc's phone number?
- The practice phone number listed in the NPPES registry for Steve Nguyen DO Inc is (626) 316-8169.
- Does Steve Nguyen DO Inc accept Medicare?
- Steve Nguyen DO Inc is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Steve Nguyen DO Inc?
- The authorized official listed on Steve Nguyen DO Inc's NPPES record is Steve Nguyen, Physician. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Steve Nguyen DO Inc's NPI active?
- Yes — Steve Nguyen DO Inc's NPI (1598943649) is active in the NPPES registry as of the last update on 2025-08-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.