Nguyen and Mok Medical Group
NPI 1861594368 · Pediatrics Physician · Fountain Valley, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nguyen and Mok Medical Group is a Pediatrics Physician organization in Fountain Valley, CA (NPI 1861594368).
Provider details
- NPI number
- 1861594368
- Entity type
- Organization
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Minsen Mok, Co-Owner(714) 434-4990
- License
- G73182 (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 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-04
- Last updated
- 2025-09-11
Frequently asked questions
- What is Nguyen and Mok Medical Group's NPI number?
- Nguyen and Mok Medical Group's National Provider Identifier (NPI) is 1861594368, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Nguyen and Mok Medical Group?
- Nguyen and Mok Medical Group is classified in the NPPES registry as Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Nguyen and Mok Medical Group located?
- Nguyen and Mok Medical Group's practice location on file with NPPES is 11100 Warner Ave, Fountain Valley, CA 92708-7506.
- What is Nguyen and Mok Medical Group's phone number?
- The practice phone number listed in the NPPES registry for Nguyen and Mok Medical Group is (714) 434-4990.
- Does Nguyen and Mok Medical Group accept Medicare?
- Nguyen and Mok Medical Group 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 Nguyen and Mok Medical Group?
- The authorized official listed on Nguyen and Mok Medical Group's NPPES record is Minsen Mok, Co-Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Nguyen and Mok Medical Group's NPI active?
- Yes — Nguyen and Mok Medical Group's NPI (1861594368) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.