Samantha Williams, FNP-BC
NPI 1003571209 · Family Nurse Practitioner · Worcester, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Samantha Williams, FNP-BC is a Family Nurse Practitioner provider in Worcester, MA (NPI 1003571209).
Provider details
- NPI number
- 1003571209
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- RN2291233 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
4 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
107 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 49 | $148 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 21 | $103 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 20 | $102 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 17 | $73 |
Typical Medicare-allowed amounts for these services range $73–$148 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 21 | 21 |
| Oxycodone Hcl | 12 | 12 |
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 (3)
- 41 Mall RdBurlington, MA 01805-0002Phone: (781) 744-8000
- 20 Commercial RdLeominster, MA 01453-3339Phone: (978) 798-6896Fax: (978) 798-6897
- 830 Constitution AveLittleton, MA 01460-1137Phone: (978) 287-8990
Registry dates
- Enumerated
- 2021-11-02
- Last updated
- 2023-11-17
- Certified
- 2023-11-17
Frequently asked questions
- What is Samantha Williams's NPI number?
- Samantha Williams's National Provider Identifier (NPI) is 1003571209, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Samantha Williams's specialty?
- Samantha Williams is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Samantha Williams located?
- Samantha Williams's practice location on file with NPPES is 55 Lake Ave N, Worcester, MA 01655-0002.
- What is Samantha Williams's phone number?
- The practice phone number listed in the NPPES registry for Samantha Williams is (508) 421-1400.
- Does Samantha Williams accept Medicare?
- Samantha Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Samantha Williams's NPI active?
- Yes — Samantha Williams's NPI (1003571209) is active in the NPPES registry as of the last update on 2023-11-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.