Steven Willey, MD
NPI 1730108556 · Internal Medicine Physician · Chesterfield, MO
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steven Willey, MD is a Internal Medicine Physician provider in Chesterfield, MO (NPI 1730108556).
Provider details
- NPI number
- 1730108556
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD107032 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 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
202 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 | 170 | $87 |
| Administration of Influenza Virus VaccineG0008 | 32 | $31 |
Typical Medicare-allowed amounts for these services range $31–$87 (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 · 98 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 216 | 47 |
| Atorvastatin Calcium | 144 | 36 |
| Omeprazole | 142 | 35 |
| Rosuvastatin Calcium | 123 | 31 |
| Amlodipine Besylate | 108 | 28 |
| Zolpidem Tartrate | 99 | 20 |
| Alprazolam |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-19
- Last updated
- 2007-07-09
Frequently asked questions
- What is Steven Willey's NPI number?
- Steven Willey's National Provider Identifier (NPI) is 1730108556, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Willey's specialty?
- Steven Willey is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Steven Willey located?
- Steven Willey's practice location on file with NPPES is 224 S Woods Mill Rd, Chesterfield, MO 63017-3451.
- What is Steven Willey's phone number?
- The practice phone number listed in the NPPES registry for Steven Willey is (314) 469-0033.
- Does Steven Willey accept Medicare?
- Steven Willey is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Steven Willey's NPI active?
- Yes — Steven Willey's NPI (1730108556) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.