Ying Chi MD Inc.
NPI 1790065621 · Orthopaedic Hand Surgery Physician · Fountain Valley, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ying Chi MD Inc. is a Orthopaedic Hand Surgery Physician organization in Fountain Valley, CA (NPI 1790065621).
Provider details
- NPI number
- 1790065621
- Entity type
- Organization
- Primary specialty
- Orthopaedic Hand Surgery PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Ying Chi, President(714) 434-3518
- License
- A107272 (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
14 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
Other names (DBA / former)
- Doing business as
- Orange County Hand Surgery Specialists
- Doing business as
- Orange County Hand Surgery Specialists
Registry dates
- Enumerated
- 2011-08-23
- Last updated
- 2023-05-02
- Certified
- 2023-05-02
Frequently asked questions
- What is Ying Chi MD Inc.'s NPI number?
- Ying Chi MD Inc.'s National Provider Identifier (NPI) is 1790065621, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Ying Chi MD Inc.?
- Ying Chi MD Inc. is classified in the NPPES registry as Orthopaedic Hand Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Ying Chi MD Inc. located?
- Ying Chi MD Inc.'s practice location on file with NPPES is 11190 Warner Ave, Fountain Valley, CA 92708-4019.
- What is Ying Chi MD Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Ying Chi MD Inc. is (714) 434-3518.
- Does Ying Chi MD Inc. accept Medicare?
- Ying Chi MD 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 Ying Chi MD Inc.?
- The authorized official listed on Ying Chi MD Inc.'s NPPES record is Ying Chi, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Ying Chi MD Inc.'s NPI active?
- Yes — Ying Chi MD Inc.'s NPI (1790065621) is active in the NPPES registry as of the last update on 2023-05-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.