Doctor profile · Federal record

Dr. William Stilwell, FNP

Family Nurse Practitioner (CMS: Nurse Practitioner) · Oswego, NY

  • NPI 1407102734
  • Accepts Medicare
  • 14 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
110 W 6Th St
Oswego, NY 131262507
(315) 349-5752
fax (315) 349-5769
Mailing address
8549 Long Leaf Trl
Liverpool, NY 130901127

Credentials & registration

NPPES · NUCC
NPI registered
July 2012 — 14 yrs on file
Profile last updated
March 11, 2025
Year of graduation
2012 — 14 yrs since
Specialty taxonomy
363LF0000X — NUCC code
State license (1)
New York #337400

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1407102734. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
244
Distinct HCPCS
9
Medicare allowed
$16,727
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 103 98 $74
99214 Established patient office or other outpatient visit, 30-39 minutes 28 28 $104
99215 Established patient office or other outpatient visit, 40-54 minutes 24 24 $146
81003 Automated urinalysis test 20 20 $2
99203 New patient office or other outpatient visit, 30-44 minutes 18 18 $91
87426 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus 14 14 $35
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) 14 14 $16
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional 12 12 $19
71046 X-ray of chest, 2 views 11 11 $9

In context: peer comparison

Among 6 peers in Oswego Family Nurse Practitioner, average services per provider: 63. This provider delivers 3.9× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
192
Patients
190
Total drug cost
$1,433
Drug Type Claims Patients Total cost
Prednisone Generic 43 42 $100
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 34 34 $221
Doxycycline Hyclate Generic 25 25 $179
Amoxicillin Generic 24 24 $105
Nitrofurantoin Mono-Macro (Nitrofurantoin Monohyd/M-Cryst) Brand 20 20 $235
Cephalexin Generic 19 18 $81
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 15 15 $413
Methylprednisolone Generic 12 12 $99

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. William Stilwell's medical specialty?
Dr. William Stilwell practices Family Nurse Practitioner in Oswego, NY.
Where does Dr. William Stilwell practice?
Dr. William Stilwell practices at 110 W 6Th St, Oswego, NY 131262507. Office phone: 3153495752.
What is Dr. William Stilwell's NPI?
Dr. William Stilwell's National Provider Identifier (NPI) is 1407102734, issued by NPPES.
Does Dr. William Stilwell accept Medicare assignment?
Yes. Dr. William Stilwell accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Stilwell commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.