Katherine Williams, MSPAS, PA-C
NPI 1770832495 · Medical Physician Assistant · Peoria, IL
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Williams, MSPAS, PA-C is a Medical Physician Assistant provider in Peoria, IL (NPI 1770832495).
Provider details
- NPI number
- 1770832495
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MSPAS, PA-C
- Sex
- Female
- Sole proprietor
- No
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 tenure25% of score
13 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
51 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 Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 20 | $29 |
| Office Or Other Outpatient Visit for the Evaluation and Management of Established Patient That May Not Require Presence of Healthcare Professional99211 | 16 | $7 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 15 | $54 |
Typical Medicare-allowed amounts for these services range $7–$54 (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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$32 across 1 record (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
Registry dates
- Enumerated
- 2012-09-10
- Last updated
- 2012-09-10
Frequently asked questions
- What is Katherine Williams's NPI number?
- Katherine Williams's National Provider Identifier (NPI) is 1770832495, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Williams's specialty?
- Katherine Williams is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katherine Williams located?
- Katherine Williams's practice location on file with NPPES is 530 Ne Glen Oak Ave, Peoria, IL 61637.
- What is Katherine Williams's phone number?
- The practice phone number listed in the NPPES registry for Katherine Williams is (309) 655-2000.
- Does Katherine Williams accept Medicare?
- Katherine Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Williams's NPI active?
- Yes — Katherine Williams's NPI (1770832495) is active in the NPPES registry as of the last update on 2012-09-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.