Registry data as of Aug 27, 2026

Lex Mahler, DO

Emergency Medicine Physician · Thomasville, AL

Lex Mahler, DO is an emergency medicine physician with a practice address in Thomasville, Alabama, and NPI 1831259043, issued on Dec 11, 2006. Check the license (Alabama DO-528, as entered in NPPES) on the Alabama Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1831259043
Name
Lex Mahler
Credential
DO
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
DO-528 AL
Self-reported in NPPES; status is on the state search
Practice location
33700 Highway 43, Thomasville, AL 36784
Phone
(334) 636-6239
Enumerated
Dec 11, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Lex Mahler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersAlabama Board of Medical Examiners
    Search for license DO-528
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Open the Alabama license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

4% more Medicare Part D claims than the average emergency medicine physician in 2024

370 Medicare Part D claims for 220 beneficiaries, against an average of 355 among the 49,029 providers of this specialty who prescribed in Part D.

  1. Lex Mahler370
  2. Specialty average355

Most prescribed

  1. Cefdinir33 claims
  2. Prednisone33 claims
  3. Azithromycin25 claims
  4. Ondansetron Odt22 claims
  5. Methylprednisolone21 claims
  6. Potassium Chloride21 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.

One hospital or facility affiliation

  1. Rush Hospital/butler, IncButler, AL

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

2 emergency medicine physician records list a Thomasville practice address

They are 2 of the 53 NPPES records with a Thomasville practice address, and 683 emergency medicine physician records in Alabama.

Other emergency medicine physician records in Alabama

  1. Donald Abele, MDBirmingham, AL1669420394
  2. Dylana Adams, MDAlabaster, AL1104566116
  3. Elizabeth Adams, M.D.Birmingham, AL1013236975
  4. William Admire, DOMobile, AL1295764124
  5. Gregory Adrian, DOBirmingham, AL1548919939
  6. Mohamed Ahmed, M.D.Florence, AL1366444861
  7. Kamal Ahuja, M.D.Birmingham, AL1356592562
  8. Charles Albert, M.D.Florence, AL1033180104
  9. Russell Alexander, D.O.Russellville, AL1174571285
  10. Andrew Allen, M.D.Birmingham, AL1891759809

Common questions

What is Lex Mahler, DO's NPI number?

Lex Mahler, DO's National Provider Identifier (NPI) is 1831259043, issued on Dec 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Lex Mahler, DO located?

The NPPES record lists a practice address at 33700 Highway 43, Thomasville, AL, 36784. Phone: (334) 636-6239. Providers update this record themselves, so call before visiting.

How can I verify Lex Mahler, DO's license?

NPPES lists Alabama license number DO-528, as entered by the provider. Search the Alabama Board of Medical Examiners at https://www.albme.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Lex Mahler, DO prescribe under Medicare Part D?

In 2024, Lex Mahler, DO had 370 Medicare Part D claims for 220 beneficiaries; the average among emergency medicine physician prescribers was 355. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.