Haley Williams
NPI 1457042392 · Family Medicine Physician · Knoxville, TN
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Haley Williams is a Family Medicine Physician provider in Knoxville, TN (NPI 1457042392).
Provider details
- NPI number
- 1457042392
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- 33952 (TN)
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
3 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
115 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 49 | $100 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 35 | $131 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 20 | $11 |
| Automated Urinalysis Test81003 | 11 | $2 |
Typical Medicare-allowed amounts for these services range $2–$131 (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 |
|---|---|---|
| Prednisone | 43 | 41 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 39 | 38 |
| Azithromycin | 37 | 37 |
| Methylprednisolone | 37 | 37 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 31 | 31 |
| Doxycycline Hyclate | 28 | 28 |
| Ipratropium Bromide | 23 | 23 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-05-19
- Last updated
- 2023-05-19
- Certified
- 2023-05-19
Frequently asked questions
- What is Haley Williams's NPI number?
- Haley Williams's National Provider Identifier (NPI) is 1457042392, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Haley Williams's specialty?
- Haley Williams is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Haley Williams located?
- Haley Williams's practice location on file with NPPES is 8707 Olde Colony Trl Apt 1, Knoxville, TN 37923-6234.
- What is Haley Williams's phone number?
- The practice phone number listed in the NPPES registry for Haley Williams is (865) 235-5296.
- Does Haley Williams accept Medicare?
- Haley Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Haley Williams's NPI active?
- Yes — Haley Williams's NPI (1457042392) is active in the NPPES registry as of the last update on 2023-05-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.