Shannon Williams, NP-C, FNP
NPI 1942712310 · Nurse Practitioner · Belleville, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Shannon Williams, NP-C, FNP is a Nurse Practitioner provider in Belleville, IL (NPI 1942712310).
Provider details
- NPI number
- 1942712310
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP-C, FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 2017001325 (MO)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
8 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
279 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 77 | $74 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 70 | $94 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 70 | $46 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 39 | $139 |
| New Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 15 Minutes Or More99202 | 12 | $60 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Dicyclomine Hcl | 251 | 107 |
| Nortriptyline Hcl | 72 | 20 |
| Famotidine | 71 | 19 |
| Colestipol Hcl | 57 | 18 |
| Omeprazole | 56 | 20 |
| Pantoprazole Sodium | 54 | 18 |
| Amitriptyline Hcl | 45 | 14 |
| Lipase/Protease/Amylasebrand: Creon |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$238 across 9 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 9515 Holy Cross Ln Ste 175Breese, IL 62230-3618Phone: (618) 526-8430
Registry dates
- Enumerated
- 2017-10-25
- Last updated
- 2025-09-19
- Certified
- 2025-09-19
Frequently asked questions
- What is Shannon Williams's NPI number?
- Shannon Williams's National Provider Identifier (NPI) is 1942712310, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Shannon Williams's specialty?
- Shannon Williams is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Shannon Williams located?
- Shannon Williams's practice location on file with NPPES is 4550 Memorial Dr Ste 280, Belleville, IL 62226-5372.
- What is Shannon Williams's phone number?
- The practice phone number listed in the NPPES registry for Shannon Williams is (618) 767-3235.
- Does Shannon Williams accept Medicare?
- Shannon Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Shannon Williams's NPI active?
- Yes — Shannon Williams's NPI (1942712310) is active in the NPPES registry as of the last update on 2025-09-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.