NPPES file of Aug 9, 2026

Jon-Cecil Martin Walkes, MD

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Houston, TX

Jon-Cecil Martin Walkes, MD is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Houston, Texas, and NPI 1669472288, issued on Jul 26, 2005. Check the license (Texas L0955, 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
1669472288
Name
Jon-Cecil Martin Walkes
Credential
MD
Primary taxonomy
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
License number
L0955 TX
Self-reported in NPPES; status is on the state search
Practice location
1900 North Loop W Ste 180, Houston, TX 77018
Phone
(281) 888-0809
Enumerated
Jul 26, 2005
Record last updated
Dec 10, 2025
Fax
(877) 559-7682
Medicare enrollment
Enrolled (PECOS I20070517000689); accepts Medicare assignment
Medical or professional school
Un Of California, Irvine, College Of Medicine, 1996
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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Verify Jon-Cecil Martin Walkes in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license L0955
    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

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2.0 times the Medicare Part D claims of the average thoracic surgery (cardiothoracic vascular surgery) physician in 2024

204 Medicare Part D claims for 66 beneficiaries, against an average of 101 among the 2,587 providers of this specialty who prescribed in Part D. Brand-name drugs were 66% of claims.

  1. Jon-Cecil Walkes204
  2. Specialty average101

Most prescribed

  1. Xarelto120 claims
  2. Clopidogrel63 claims
  3. Eliquis15 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: $385.93

9 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 4,047 providers of this specialty with any payment received $7,828.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jon-Cecil Walkes$385.93
  2. Specialty average$7,828.84

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. Houston Cardiothoracic And Vein Surgeons, PLLCHouston, TX

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

Jon-Cecil Martin Walkes among 484 thoracic surgery (cardiothoracic vascular surgery) physician records in Texas

Jon-Cecil Martin Walkes, MD is one of 484 thoracic surgery (cardiothoracic vascular surgery) physician records with a practice address in Texas. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 86% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated1996 · median 1996 among the 309 with a school on file
  • Record last updated2025 · 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 208G00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in Texas

There are 484 thoracic surgery (cardiothoracic vascular surgery) physician records in Texas.

The 8 thoracic surgery (cardiothoracic vascular surgery) physician records with the nearest ZIP codes

  1. David Corbut, M.D.Houston, TX 770171700167020
  2. Juan Abreu, M.D.Houston, TX 770241598053092
  3. Robert Hetz, M.D.Houston, TX 770241093064495
  4. Danny Ramzy, MDHouston, TX 770241679723175
  5. Jon Spiers, MD JDHouston, TX 770251184782120
  6. Christos Katsigiannis, MDHouston, TX 770081194725234
  7. Michael Macris, M.D.Houston, TX 770081780753905
  8. Steven Eisenberg, M.D.Houston, TX 770301073512513

Common questions

What is Jon-Cecil Martin Walkes, MD's NPI number?

Jon-Cecil Martin Walkes, MD's National Provider Identifier (NPI) is 1669472288, issued on Jul 26, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Jon-Cecil Martin Walkes, MD located?

The NPPES record lists a practice address at 1900 North Loop W Ste 180, Houston, TX, 77018. Phone: (281) 888-0809. Providers update this record themselves, so call before visiting.

How can I verify Jon-Cecil Martin Walkes, MD's license?

NPPES lists Texas license number L0955, 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 Jon-Cecil Martin Walkes, MD prescribe under Medicare Part D?

In 2024, Jon-Cecil Martin Walkes, MD had 204 Medicare Part D claims for 66 beneficiaries; the average among thoracic surgery (cardiothoracic vascular surgery) physician prescribers was 101. 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.