Sumi Wong-Yap, R.N., N.P.
NPI 1457696312 · Adult Health Nurse Practitioner · Oakland, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sumi Wong-Yap, R.N., N.P. is a Adult Health Nurse Practitioner provider in Oakland, CA (NPI 1457696312).
Provider details
- NPI number
- 1457696312
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- R.N., N.P.
- Sex
- Female
- Sole proprietor
- No
- License
- 21015 (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
13 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 62 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 565 | 262 |
| Amlodipine Besylate | 388 | 176 |
| Metformin Hcl | 251 | 109 |
| Losartan Potassium | 237 | 113 |
| Lisinopril | 209 | 84 |
| Alendronate Sodium | 182 | 74 |
| Famotidine | 129 | 82 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-12-04
- Last updated
- 2012-12-04
Frequently asked questions
- What is Sumi Wong-Yap's NPI number?
- Sumi Wong-Yap's National Provider Identifier (NPI) is 1457696312, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sumi Wong-Yap's specialty?
- Sumi Wong-Yap is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Sumi Wong-Yap located?
- Sumi Wong-Yap's practice location on file with NPPES is 818 Webster St., Oakland, CA 94607.
- What is Sumi Wong-Yap's phone number?
- The practice phone number listed in the NPPES registry for Sumi Wong-Yap is (510) 986-6800.
- Does Sumi Wong-Yap accept Medicare?
- Sumi Wong-Yap is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sumi Wong-Yap's NPI active?
- Yes — Sumi Wong-Yap's NPI (1457696312) is active in the NPPES registry as of the last update on 2012-12-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.