Kari Williamson, NP
NPI 1639787880 · Family Nurse Practitioner · Little Rock, AR
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kari Williamson, NP is a Family Nurse Practitioner provider in Little Rock, AR (NPI 1639787880).
Provider details
- NPI number
- 1639787880
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 125708 (AR)
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
5 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
330 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) |
|---|---|---|
| Detection Test By Immunoassay With Direct Visual Observation for Influenza Virus87804 | 125 | $16 |
| Detection Test By Immunoassay With Direct Visual Observation for Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19)87811 | 71 | $40 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 47 | $67 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 40 | $98 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 20 | $127 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical 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 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 30 | 20 |
| Acyclovir | 27 | 18 |
| Dexamethasone | 27 | 17 |
| Doxycycline Hyclate | 19 | 19 |
| Lenalidomide | 18 | 11 |
| Fluticasone Propionate | 14 | 14 |
| Prednisone | 12 | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$285 across 5 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)
- 1306 N Center StLonoke, AR 72086-2011Phone: (501) 676-6560Fax: (501) 676-7166
Registry dates
- Enumerated
- 2020-07-14
- Last updated
- 2024-03-07
- Certified
- 2024-03-07
Frequently asked questions
- What is Kari Williamson's NPI number?
- Kari Williamson's National Provider Identifier (NPI) is 1639787880, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kari Williamson's specialty?
- Kari Williamson is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Kari Williamson located?
- Kari Williamson's practice location on file with NPPES is 4301 W Markham St # 776, Little Rock, AR 72205-7101.
- What is Kari Williamson's phone number?
- The practice phone number listed in the NPPES registry for Kari Williamson is (501) 686-8000.
- Does Kari Williamson accept Medicare?
- Kari Williamson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kari Williamson's NPI active?
- Yes — Kari Williamson's NPI (1639787880) is active in the NPPES registry as of the last update on 2024-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.