Steven Willis, FNP
NPI 1558989566 · Family Nurse Practitioner · League City, TX
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steven Willis, FNP is a Family Nurse Practitioner provider in League City, TX (NPI 1558989566).
Provider details
- NPI number
- 1558989566
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Male
- Sole proprietor
- No
- License
- AP144849 (TX)
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
5 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
289 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 | 104 | $77 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 65 | $96 |
| Detection Test By Immunoassay With Direct Visual Observation for Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19)87811 | 34 | $41 |
| Detection Test By Immunoassay With Direct Visual Observation for Influenza Virus87804 | 27 | $16 |
| Automated Urinalysis Test81003 | 25 | $2 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 70 | 68 |
| Azelastine Hcl | 38 | 36 |
| Azithromycin | 32 | 32 |
| Fluticasone Propionate | 27 | 27 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 24 | 23 |
| Amoxicillin | 22 | 22 |
| Cephalexin | 21 | 21 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-07-07
- Last updated
- 2024-09-25
- Certified
- 2024-09-25
Frequently asked questions
- What is Steven Willis's NPI number?
- Steven Willis's National Provider Identifier (NPI) is 1558989566, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Willis's specialty?
- Steven Willis is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Steven Willis located?
- Steven Willis's practice location on file with NPPES is 2785 Gulf Fwy S, League City, TX 77573-4979.
- What is Steven Willis's phone number?
- The practice phone number listed in the NPPES registry for Steven Willis is (832) 505-0139.
- Does Steven Willis accept Medicare?
- Steven Willis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Steven Willis's NPI active?
- Yes — Steven Willis's NPI (1558989566) is active in the NPPES registry as of the last update on 2024-09-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.