Kristen Nguyen, M.D.
NPI 1669884821 · Endocrinology, Diabetes & Metabolism Physician · Long Beach, CA
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kristen Nguyen, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Long Beach, CA (NPI 1669884821).
Provider details
- NPI number
- 1669884821
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A142462 (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
12 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 9961 Sierra AveFontana, CA 92335-6720Phone: (909) 427-2608Fax: (909) 427-5312
Registry dates
- Enumerated
- 2014-05-22
- Last updated
- 2022-02-04
- Certified
- 2022-02-04
Frequently asked questions
- What is Kristen Nguyen's NPI number?
- Kristen Nguyen's National Provider Identifier (NPI) is 1669884821, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kristen Nguyen's specialty?
- Kristen Nguyen is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Kristen Nguyen located?
- Kristen Nguyen's practice location on file with NPPES is 2699 Atlantic Ave, Long Beach, CA 90806-2710.
- What is Kristen Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Kristen Nguyen is (562) 426-3333.
- Does Kristen Nguyen accept Medicare?
- Kristen Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kristen Nguyen's NPI active?
- Yes — Kristen Nguyen's NPI (1669884821) is active in the NPPES registry as of the last update on 2022-02-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.