Sara Okabayashi-Williams, FNP
NPI 1427169762 · Family Nurse Practitioner · Daly City, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sara Okabayashi-Williams, FNP is a Family Nurse Practitioner provider in Daly City, CA (NPI 1427169762).
Provider details
- NPI number
- 1427169762
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- F334934-1 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 45 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 166 | 62 |
| Losartan Potassium | 122 | 41 |
| Amlodipine Besylate | 102 | 38 |
| Metformin Hcl | 98 | 39 |
| Lisinopril | 75 | 23 |
| Levothyroxine Sodium | 68 | 20 |
| Metoprolol Succinate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-31
- Last updated
- 2012-07-10
Frequently asked questions
- What is Sara Okabayashi-Williams's NPI number?
- Sara Okabayashi-Williams's National Provider Identifier (NPI) is 1427169762, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sara Okabayashi-Williams's specialty?
- Sara Okabayashi-Williams is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Sara Okabayashi-Williams located?
- Sara Okabayashi-Williams's practice location on file with NPPES is 380 90th St, Daly City, CA 94015-1807.
- What is Sara Okabayashi-Williams's phone number?
- The practice phone number listed in the NPPES registry for Sara Okabayashi-Williams is (650) 301-8406.
- Does Sara Okabayashi-Williams accept Medicare?
- Sara Okabayashi-Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sara Okabayashi-Williams's NPI active?
- Yes — Sara Okabayashi-Williams's NPI (1427169762) is active in the NPPES registry as of the last update on 2012-07-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.