Kassandra Williams, PA-C
NPI 1699495770 · Physician Assistant · Saint Louis, MO
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kassandra Williams, PA-C is a Physician Assistant provider in Saint Louis, MO (NPI 1699495770).
Provider details
- NPI number
- 1699495770
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 2022039976 (MO)
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
3 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
202 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 148 | $64 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 54 | $73 |
Typical Medicare-allowed amounts for these services range $64–$73 (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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 194 | 52 |
| Metoprolol Succinate | 104 | 40 |
| Amiodarone Hcl | 100 | 40 |
| Metoprolol Tartrate | 80 | 32 |
| Rivaroxabanbrand: Xarelto | 46 | 14 |
| Sotalol Hclbrand: Sotalol | 41 | 18 |
| Dofetilide |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,232 across 44 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)
- 10012 Kennerly Rd Ste 202Saint Louis, MO 63128-2197Phone: (314) 692-2807
Registry dates
- Enumerated
- 2022-08-30
- Last updated
- 2024-07-15
- Certified
- 2024-07-15
Frequently asked questions
- What is Kassandra Williams's NPI number?
- Kassandra Williams's National Provider Identifier (NPI) is 1699495770, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kassandra Williams's specialty?
- Kassandra Williams is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Kassandra Williams located?
- Kassandra Williams's practice location on file with NPPES is 10012 Kennerly Rd Ste 300, Saint Louis, MO 63128-2197.
- What is Kassandra Williams's phone number?
- The practice phone number listed in the NPPES registry for Kassandra Williams is (309) 265-7877.
- Does Kassandra Williams accept Medicare?
- Kassandra Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kassandra Williams's NPI active?
- Yes — Kassandra Williams's NPI (1699495770) is active in the NPPES registry as of the last update on 2024-07-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.