Sari Williams, RN, FNP
NPI 1295272201 · Family Nurse Practitioner · Duarte, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sari Williams, RN, FNP is a Family Nurse Practitioner provider in Duarte, CA (NPI 1295272201).
Provider details
- NPI number
- 1295272201
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- RN, FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 95005967 (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 tenure25% of score
9 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
202 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 115 | $45 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 37 | $118 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 23 | $71 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 14 | $167 |
| Advance Care Planning, First 30 Minutes99497 | 13 | $68 |
Typical Medicare-allowed amounts for these services range $45–$167 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 134 | 39 |
| Gabapentin | 80 | 26 |
| Fentanyl | 74 | 15 |
| Methadone Hcl | 59 | 20 |
| Pregabalin | 51 | 19 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 49 | 20 |
| Hydromorphone Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$267 across 7 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 444 N Curson AveLos Angeles, CA 90036-2345Phone: (818) 497-5830
Registry dates
- Enumerated
- 2017-01-28
- Last updated
- 2020-11-19
- Certified
- 2020-11-19
Frequently asked questions
- What is Sari Williams's NPI number?
- Sari Williams's National Provider Identifier (NPI) is 1295272201, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sari Williams's specialty?
- Sari Williams is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Sari Williams located?
- Sari Williams's practice location on file with NPPES is 1500 Duarte Rd, Duarte, CA 91010-3012.
- What is Sari Williams's phone number?
- The practice phone number listed in the NPPES registry for Sari Williams is (626) 256-4673.
- Does Sari Williams accept Medicare?
- Sari Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sari Williams's NPI active?
- Yes — Sari Williams's NPI (1295272201) is active in the NPPES registry as of the last update on 2020-11-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.