NPPES file of Aug 9, 2026

Ronald D. Leidenfrost, MD

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Chesterfield, MO

Ronald D. Leidenfrost, MD is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Chesterfield, Missouri, and NPI 1215936745, issued on Jul 18, 2005. Check the license (Missouri R6074, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; 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
1215936745
Name
Ronald D. Leidenfrost
Credential
MD
Primary taxonomy
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
License number
R6074 MO
Self-reported in NPPES; status is on the state search
Practice location
222 S Woods Mill RD, Chesterfield, MO 63017
Phone
(314) 434-3049
Enumerated
Jul 18, 2005
Record last updated
Dec 1, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(314) 205-6916
Medicaid ID
202053401 MO
Medicare enrollment
Enrolled (PECOS I20050926000279); accepts Medicare assignment
Medical or professional school
State University Of Ny Upstate Medical University, 1973
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 222 S Woods Mill RD

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

  1. Nadya Ajanee, M.D.Internal Medicine Physician1639284276
  2. Afshin Amini, MDInternal Medicine Physician1871086090
  3. Venkat Arukala, M.D.Internal Medicine Physician1205210887
  4. Richard Bell, MDSpecialist1780679373
  5. John Best, MDPulmonary Disease Physician1053429977
  6. Ronald Bilchik, M.D.Specialist1992740435

Verify Ronald D. Leidenfrost in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
    Search for license R6074
    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 Missouri license search

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75% more Medicare Part D claims than the average thoracic surgery (cardiothoracic vascular surgery) physician in 2024

177 Medicare Part D claims for 57 beneficiaries, against an average of 101 among the 2,587 providers of this specialty who prescribed in Part D. 28 claims were for opioids.

  1. Ronald Leidenfrost177
  2. Specialty average101

Most prescribed

  1. Tramadol Hcl27 claims
  2. Losartan Potassium20 claims
  3. Metoprolol Succinate16 claims
  4. Warfarin Sodium15 claims
  5. Spironolactone12 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: $90.45

5 payments; by number, the most common kind was food and beverage; the largest payer was Zoll Services LLC (a/k/a Zoll LifeCor Corp). 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. Ronald Leidenfrost$90.45
  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. Cardiothoracic Surgery, LLCChesterfield, MO

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

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in Missouri

There are 143 thoracic surgery (cardiothoracic vascular surgery) physician records in Missouri.

Other thoracic surgery (cardiothoracic vascular surgery) physician records in Missouri

  1. Corinne Aberle, M.D.Kansas City, MO1437445269
  2. Umraan Ahmad, MDChesterfield, MO1750401568
  3. Ali Alakhtar, MD, MSC, FRCSCSaint Louis, MO1295588655
  4. Keith Allen, M.D.Springfield, MO1134186901
  5. Trevor Axford, MDSaint Louis, MO1528094224
  6. Colin Bailey, M.D.Osage Beach, MO1457372997
  7. Joshua Baker, MDSaint Louis, MO1972623692
  8. Shelly Bansal, MDSaint Joseph, MO1174793111
  9. George Berberian, M.D.Cape Girardeau, MO1962569046
  10. Mark Blucher, M.D.Saint Louis, MO1568433951

Common questions

What is Ronald D. Leidenfrost, MD's NPI number?

Ronald D. Leidenfrost, MD's National Provider Identifier (NPI) is 1215936745, issued on Jul 18, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Ronald D. Leidenfrost, MD located?

The NPPES record lists a practice address at 222 S Woods Mill RD, Chesterfield, MO, 63017. Phone: (314) 434-3049. Providers update this record themselves, so call before visiting.

How can I verify Ronald D. Leidenfrost, MD's license?

NPPES lists Missouri license number R6074, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Ronald D. Leidenfrost, MD prescribe under Medicare Part D?

In 2024, Ronald D. Leidenfrost, MD had 177 Medicare Part D claims for 57 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.