Wallace Lock, M.D.
NPI 1437545761 · Emergency Medicine Physician · Fort Smith, AR
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Wallace Lock, M.D. is a Emergency Medicine Physician provider in Fort Smith, AR (NPI 1437545761).
Provider details
- NPI number
- 1437545761
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- E-10064 (AR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
11 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
492 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 | 252 | $160 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 168 | $7 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 72 | $110 |
Typical Medicare-allowed amounts for these services range $7–$160 (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 |
|---|---|---|
| Ondansetronbrand: Ondansetron Odt | 52 | 52 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 38 | 38 |
| Prednisone | 34 | 32 |
| Doxycycline Hyclate | 19 | 19 |
| Azithromycin | 17 | 16 |
| Cephalexin | 14 | 14 |
| Methocarbamol | 13 | 13 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$432 across 4 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
Registry dates
- Enumerated
- 2015-04-14
- Last updated
- 2024-04-04
- Certified
- 2024-04-04
Frequently asked questions
- What is Wallace Lock's NPI number?
- Wallace Lock's National Provider Identifier (NPI) is 1437545761, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Wallace Lock's specialty?
- Wallace Lock is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Wallace Lock located?
- Wallace Lock's practice location on file with NPPES is 612 S 12th St, Fort Smith, AR 72901-4702.
- What is Wallace Lock's phone number?
- The practice phone number listed in the NPPES registry for Wallace Lock is (479) 424-3193.
- Does Wallace Lock accept Medicare?
- Wallace Lock is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Wallace Lock's NPI active?
- Yes — Wallace Lock's NPI (1437545761) is active in the NPPES registry as of the last update on 2024-04-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.