Tien T Nguyen M.D. Inc.
NPI 1063534204 · Neurological Surgery Physician · Fountain Valley, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tien T Nguyen M.D. Inc. is a Neurological Surgery Physician organization in Fountain Valley, CA (NPI 1063534204).
Provider details
- NPI number
- 1063534204
- Entity type
- Organization
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Tien Nguyen, President(714) 433-2000
- License
- G81962 (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
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
- 2007-04-06
- Last updated
- 2013-01-28
Frequently asked questions
- What is Tien T Nguyen M.D. Inc.'s NPI number?
- Tien T Nguyen M.D. Inc.'s National Provider Identifier (NPI) is 1063534204, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Tien T Nguyen M.D. Inc.?
- Tien T Nguyen M.D. Inc. is classified in the NPPES registry as Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Tien T Nguyen M.D. Inc. located?
- Tien T Nguyen M.D. Inc.'s practice location on file with NPPES is 11190 Warner Ave, Fountain Valley, CA 92708-4019.
- What is Tien T Nguyen M.D. Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Tien T Nguyen M.D. Inc. is (714) 433-2000.
- Does Tien T Nguyen M.D. Inc. accept Medicare?
- Tien T Nguyen M.D. 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 Tien T Nguyen M.D. Inc.?
- The authorized official listed on Tien T Nguyen M.D. Inc.'s NPPES record is Tien Nguyen, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Tien T Nguyen M.D. Inc.'s NPI active?
- Yes — Tien T Nguyen M.D. Inc.'s NPI (1063534204) is active in the NPPES registry as of the last update on 2013-01-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.