William Stilwell, FNP
NPI 1407102734 · Family Nurse Practitioner · Oswego, NY
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Stilwell, FNP is a Family Nurse Practitioner provider in Oswego, NY (NPI 1407102734).
Provider details
- NPI number
- 1407102734
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Male
- Sole proprietor
- No
- License
- 337400 (NY)
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 tenure28% of score
13 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
239 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 71 | $71 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 49 | $102 |
| Detection Test By Immunoassay With Direct Visual Observation for Influenza Virus87804 | 30 | $16 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 27 | $88 |
| Automated Urinalysis Test81003 | 26 | $2 |
| X-Ray of Chest, 2 Views71046 | 12 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 61 | 61 |
| Cephalexin | 35 | 33 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 34 | 33 |
| Doxycycline Hyclate | 29 | 29 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 19 | 18 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 15 | 15 |
| Methylprednisolone |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-07-24
- Last updated
- 2025-03-11
- Certified
- 2025-03-11
Frequently asked questions
- What is William Stilwell's NPI number?
- William Stilwell's National Provider Identifier (NPI) is 1407102734, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Stilwell's specialty?
- William Stilwell is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is William Stilwell located?
- William Stilwell's practice location on file with NPPES is 110 W 6th St, Oswego, NY 13126-2507.
- What is William Stilwell's phone number?
- The practice phone number listed in the NPPES registry for William Stilwell is (315) 349-5752.
- Does William Stilwell accept Medicare?
- William Stilwell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Stilwell's NPI active?
- Yes — William Stilwell's NPI (1407102734) is active in the NPPES registry as of the last update on 2025-03-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.