William Wallace, M.D.
NPI 1851740609 · Emergency Medicine Physician · Lexington, KY
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Wallace, M.D. is a Emergency Medicine Physician provider in Lexington, KY (NPI 1851740609).
Provider details
- NPI number
- 1851740609
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 2016015671 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
10 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
410 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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 221 | $165 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 124 | $114 |
| Critical Care, First 30-74 Minutes99291 | 40 | $199 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 25 | $67 |
Typical Medicare-allowed amounts for these services range $67–$199 (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 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 117 | 113 |
| Prednisone | 101 | 99 |
| Ondansetronbrand: Ondansetron Odt | 94 | 90 |
| Doxycycline Hyclate | 54 | 53 |
| Cefdinir | 43 | 42 |
| Naproxen | 26 | 25 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 23 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$18 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
Additional practice locations (1)
- 20828 W Deer Ridge DrWarrenton, MO 63383-6548Phone: (731) 693-1601
Registry dates
- Enumerated
- 2016-06-11
- Last updated
- 2023-03-29
- Certified
- 2023-03-29
Frequently asked questions
- What is William Wallace's NPI number?
- William Wallace's National Provider Identifier (NPI) is 1851740609, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Wallace's specialty?
- William Wallace is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Wallace located?
- William Wallace's practice location on file with NPPES is 1221 S Broadway, Lexington, KY 40504-2701.
- What is William Wallace's phone number?
- The practice phone number listed in the NPPES registry for William Wallace is (859) 258-4000.
- Does William Wallace accept Medicare?
- William Wallace is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Wallace's NPI active?
- Yes — William Wallace's NPI (1851740609) is active in the NPPES registry as of the last update on 2023-03-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.