Wallace Lock, M.D.
Emergency Medicine Physician · Fort Smith, AR
Wallace Lock, M.D. is an emergency medicine physician with a practice address in Fort Smith, Arkansas, and NPI 1437545761, issued on Apr 14, 2015. Check the license (Arkansas E-10064, as entered in NPPES) on the Arkansas State Medical Board; the Medicare figures below come from public CMS files.
- Name
- Wallace Lock
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- E-10064 AR
67669 TN
Self-reported in NPPES; status is on the state search - Practice location
- 612 S 12TH St, Fort Smith, AR 72901
- Phone
- (479) 424-3193
- Enumerated
- Apr 14, 2015
- Record last updated
- Apr 4, 2024
- Medicare enrollment
- Enrolled (PECOS I20240123000031); accepts Medicare assignment
- Medical or professional school
- University Of Arkansas College Of Medicine, 2015
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 447 in Arkansas → Look up another NPI →
Also registered at 612 S 12TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sanjeev Adhikari, MDStudent in an Organized Health Care Education/Training Program1770385163
- Harleen BhattiHospitalist Physician1750084620
- Karman Biggs, DOStudent in an Organized Health Care Education/Training Program1457154445
- Shayne Brown-Bayird, DOStudent in an Organized Health Care Education/Training Program1427850841
- Harrison ChambersStudent in an Organized Health Care Education/Training Program1457180663
Verify Wallace Lock in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArkansas State Medical Board
Search for license E-10064Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% more Medicare Part D claims than the average emergency medicine physician in 2024
401 Medicare Part D claims for 190 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Ondansetron Odt52 claims
- Albuterol Sulfate Hfa38 claims
- Prednisone34 claims
- Doxycycline Hyclate19 claims
- Azithromycin17 claims
- Cephalexin14 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $432.18
4 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 12,335 providers of this specialty with any payment received $953.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Olive Branch Emergency Physicians LLCOlive Branch, MS
- Southeastern Emergency Physicians LLCBartlett, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Wallace Lock among 447 emergency medicine physician records in Arkansas
Wallace Lock, M.D. is one of 447 emergency medicine physician records with a practice address in Arkansas. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 70% of them.
- NPI issued2015 · 70% of these records are older, 26% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2015 · median 2011 among the 301 with a school on file
- Record last updated2024 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Arkansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
40 emergency medicine physician records list a practice address in Fort Smith
They are 40 of the 2,951 NPPES records with a practice address in Fort Smith, and 447 emergency medicine physician records in Arkansas.
All 447 in Arkansas → Every provider in Fort Smith → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Robert Fraser, M.D.Fort Smith, AR 729011932161353
- Michelle Horan, M.D.Fort Smith, AR 729011679535181
- Mark Horan, M.D.Fort Smith, AR 729011114989530
- Lee Johnson, MDFort Smith, AR 729011942262464
- Matthew Lamb, M.D.Fort Smith, AR 729011346582509
- Robert Lane, M.D.Fort Smith, AR 729011619938164
- Jamie Maner, M.D.Fort Smith, AR 729011750464442
- Marshall Newcity, M.D.Fort Smith, AR 729011306808886
Common questions
What is Wallace Lock, M.D.'s NPI number?
Wallace Lock, M.D.'s National Provider Identifier (NPI) is 1437545761, issued on Apr 14, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Wallace Lock, M.D. located?
The NPPES record lists a practice address at 612 S 12TH St, Fort Smith, AR, 72901. Phone: (479) 424-3193. Providers update this record themselves, so call before visiting.
How can I verify Wallace Lock, M.D.'s license?
NPPES lists Arkansas license number E-10064, as entered by the provider. Search the Arkansas State Medical Board at https://armedicalboard.adh.arkansas.gov/public/verify/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Wallace Lock, M.D. prescribe under Medicare Part D?
In 2024, Wallace Lock, M.D. had 401 Medicare Part D claims for 190 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.