WILLIAM H STILWELL FNP
NPI 1407102734
Nurse Practitioner - Family in Oswego, NY

Active since July 24, 2012PECOS EnrolledAccepts Medicare Assignment
110 W 6TH ST, OSWEGO, NY 13126(315) 349-5752(315) 349-5769 Get Directions Write a Review

NPPES record last updated: March 11, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About William H Stilwell Fnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM H STILWELL FNP (NPI 1407102734) is an individual family provider in Oswego, New York, licensed in New York (337400) and active in the NPI registry since July 2012. He is enrolled in Medicare PECOS, is affiliated with Oswego Hospital, and is a graduate of Other (2012).

NPPES Registry Identity

NPI1407102734
Entity TypeIndividualMale
Primary Taxonomy363LF0000X
Provider Legal NameWILLIAM H STILWELLCredential: FNP
Location Address110 W 6TH STOswego, NY 13126-2507
Mailing Address8549 Long Leaf TrlLiverpool, NY 13090-1127
Fax(315) 349-5769
Sole ProprietorNo
Medical School CMSOtherGraduated 2012
Enumeration DateJuly 24, 2012
Last NPPES UpdateMarch 11, 2025
NPPES CertifiedMarch 11, 2025
NPI 1407102734 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License Licensed in NY · 337400
110 W 6TH ST, Oswego, NY 13126

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

William H Stilwell Fnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7517115447
PECOS Enrollment IDI20120918000273
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 8

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
71 services67 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
49 services44 patients
Detection test by immunoassay with direct visual observation for influenza virus 87804
This is a test that identifies the influenza virus in your body. It works by using an immunoassay, a method that detects the presence of the virus through an immune response. The results are directly observable, making it a quick and efficient way to diagnose flu.
30 services15 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
27 services27 patients
Automated urinalysis test 81003
An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.
26 services24 patients
X-ray of chest, 2 views 71046
A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.
12 services12 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Oswego Hospital

Acute Care Hospitals · Oswego, NY
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330218
Location110 West Sixth StreetOswego, NY 13126 · Oswego County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 13126 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$84.93 typical visit price
range $54.87 – $166.88
Typical copayment $21.23 (range $13.71 – $41.72)
Most-billed visit code 99203
Established Patient
$97.08 typical visit price
range $17.54 – $136.14
Typical copayment $24.27 (range $4.38 – $34.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

General Acute Care Hospital
110 W 6TH ST
OSWEGO, NY 13126
Emergency Medicine
110 W 6TH ST
OSWEGO, NY 13126
Nurse Anesthetist, Certified Registered
110 W 6TH ST
OSWEGO, NY 13126
Nurse Practitioner (Adult Health)
110 W 6TH ST
OSWEGO, NY 13126
Physical Therapist
110 W 6TH ST, 140
OSWEGO, NY 13126
Physical Therapist
110 W 6TH ST
OSWEGO, NY 13126
Dietitian, Registered
110 W 6TH ST
OSWEGO, NY 13126
Radiology (Diagnostic Radiology)
110 W 6TH ST
OSWEGO, NY 13126

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Stilwell's NPI number?

The NPI number for William Stilwell is 1407102734. It was assigned to this individual provider in the NPPES registry on July 24, 2012.

Where is William Stilwell located?

William Stilwell practices at 110 W 6th St, Oswego, NY 13126. The listed phone number is (315) 349-5752.

What is William Stilwell's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is William Stilwell enrolled in Medicare?

Yes. William Stilwell is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is William Stilwell affiliated with any hospitals?

According to CMS data, William Stilwell is affiliated with Oswego Hospital.

When was this NPI record last updated?

The NPPES record for William Stilwell was last updated on March 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.