NPPES file of Aug 9, 2026

Leslie Ryan Cler, MD

Internal Medicine Physician · Dallas, TX

Leslie Ryan Cler, MD is an internal medicine physician with a practice address in Dallas, Texas, and NPI 1538378310, issued on May 21, 2007. Check the license (Texas N1591, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1538378310
Name
Leslie Ryan Cler
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
N1591 TX
Self-reported in NPPES; status is on the state search
Practice location
1441 N Beckley Ave, Dallas, TX 75203
Phone
(214) 947-2385
Enumerated
May 21, 2007
Record last updated
Mar 7, 2023
Fax
(214) 947-2390
Medicaid ID
204084201 TX
Medicare enrollment
Enrolled (PECOS I20090729000186); accepts Medicare assignment
Medical or professional school
University Of Texas Southwestern Medical School At Dallas, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1441 N Beckley Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Dua'a AbdallahInternal Medicine Physician1790262236
  2. Aisha Abdel-Rahman, MDHospitalist Physician1568861144
  3. Farhan Abdullah, D.O.Internal Medicine Physician1124445259
  4. Abdulmanan Abid, DOStudent in an Organized Health Care Education/Training Program1194511451
  5. Mujahed Abualfoul, DOInternal Medicine Physician1659991669
  6. Ahmed Abubaker, MDInfectious Disease Physician1134548407

Verify Leslie Ryan Cler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license N1591
    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 Texas 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.

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89% fewer Medicare Part D claims than the average internal medicine physician in 2024

338 Medicare Part D claims for 91 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 14 claims were for opioids.

  1. Leslie Cler338
  2. Specialty average3,176

Most prescribed

  1. Clopidogrel19 claims
  2. Atorvastatin Calcium18 claims
  3. Eliquis16 claims
  4. Furosemide14 claims
  5. Torsemide13 claims
  6. Pantoprazole Sodium11 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: $26.61

1 payment: food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Leslie Cler$26.61
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. MedhealthDallas, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Leslie Ryan Cler among 9,175 internal medicine physician records in Texas

Leslie Ryan Cler, MD is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 41% of them.

  • NPI issued2007 · 41% of these records are older, 50% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2006 · median 2004 among the 6,088 with a school on file
  • Record last updated2023 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

956 internal medicine physician records list a practice address in Dallas

They are 956 of the 36,304 NPPES records with a practice address in Dallas, and 9,175 internal medicine physician records in Texas.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Neena Biswas, M.D.Dallas, TX 752031124005921
  2. James Goodsett, MDDallas, TX 752031720027931
  3. Christopher Martin, M.D.Dallas, TX 752031396806535
  4. Raymond Munoz, MDDallas, TX 752031922070374
  5. Stella Nwankwo, M.D.Dallas, TX 752031801897475
  6. Gloria Peralta, DODallas, TX 752031740482777
  7. Brad Pirtle, DODallas, TX 752031881666139
  8. Alicia Reasoner, DODallas, TX 752031609078641

Common questions

What is Leslie Ryan Cler, MD's NPI number?

Leslie Ryan Cler, MD's National Provider Identifier (NPI) is 1538378310, issued on May 21, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Leslie Ryan Cler, MD located?

The NPPES record lists a practice address at 1441 N Beckley Ave, Dallas, TX, 75203. Phone: (214) 947-2385. Providers update this record themselves, so call before visiting.

How can I verify Leslie Ryan Cler, MD's license?

NPPES lists Texas license number N1591, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Leslie Ryan Cler, MD prescribe under Medicare Part D?

In 2024, Leslie Ryan Cler, MD had 338 Medicare Part D claims for 91 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.