Christina Ryu
NPI 1821231259 · Student in an Organized Health Care Education/Training Program · Ypsilanti, MI
Enrolled with Medicare as Order and Referring Only - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christina Ryu is a Student in an Organized Health Care Education/Training Program provider in Ypsilanti, MI (NPI 1821231259).
Provider details
- NPI number
- 1821231259
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2009-04-15
- Last updated
- 2009-04-15
Frequently asked questions
- What is Christina Ryu's NPI number?
- Christina Ryu's National Provider Identifier (NPI) is 1821231259, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christina Ryu's specialty?
- Christina Ryu is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is Christina Ryu located?
- Christina Ryu's practice location on file with NPPES is 5333 Mcauley Dr, Ypsilanti, MI 48197-1014.
- What is Christina Ryu's phone number?
- The practice phone number listed in the NPPES registry for Christina Ryu is (734) 712-5015.
- Does Christina Ryu accept Medicare?
- Christina Ryu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christina Ryu's NPI active?
- Yes — Christina Ryu's NPI (1821231259) is active in the NPPES registry as of the last update on 2009-04-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.