In-Hyang Choi
NPI 1588142137 · Family Nurse Practitioner · Walnut, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
In-Hyang Choi is a Family Nurse Practitioner provider in Walnut, CA (NPI 1588142137).
Provider details
- NPI number
- 1588142137
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- NP95013386 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 32 | 15 |
| Rosuvastatin Calcium | 28 | 15 |
| Losartan Potassium | 19 | 12 |
| Amlodipine Besylate | 15 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 408 S Beach Blvd Ste 204Anaheim, CA 92804-1878Phone: (714) 484-3781
Registry dates
- Enumerated
- 2018-08-04
- Last updated
- 2020-10-14
- Certified
- 2020-10-14
Frequently asked questions
- What is In-Hyang Choi's NPI number?
- In-Hyang Choi's National Provider Identifier (NPI) is 1588142137, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is In-Hyang Choi's specialty?
- In-Hyang Choi is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is In-Hyang Choi located?
- In-Hyang Choi's practice location on file with NPPES is 20627 Golden Springs Dr Ste 2d, Walnut, CA 91789-4817.
- What is In-Hyang Choi's phone number?
- The practice phone number listed in the NPPES registry for In-Hyang Choi is (909) 480-0200.
- Does In-Hyang Choi accept Medicare?
- In-Hyang Choi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is In-Hyang Choi's NPI active?
- Yes — In-Hyang Choi's NPI (1588142137) is active in the NPPES registry as of the last update on 2020-10-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.