NPPES file of Aug 9, 2026

Lawrence M. Leon, M.D.

Diagnostic Radiology Physician · Yankton, SD

Lawrence M. Leon, M.D. is a diagnostic radiology physician with a practice address in Yankton, South Dakota, and NPI 1316947922, issued on Jul 26, 2005. Check the license (South Dakota 3955, as entered in NPPES) on the South Dakota Board of Medical and Osteopathic Examiners; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1316947922
Name
Lawrence M. Leon
Credential
M.D.
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License numbers
3955 SD
MD-33894 IA
Self-reported in NPPES; status is on the state search
Practice location
1000 W 4TH St Ste 8, Yankton, SD 57078
Phone
(605) 655-1414
Enumerated
Jul 26, 2005
Record last updated
Oct 2, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(605) 655-1420
Medicare enrollment
Enrolled (PECOS I20050208000968); accepts Medicare assignment
Medical or professional school
Sanford School Of Medicine Of University Of South Dakota, 1991
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 Lawrence M. Leon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersSouth Dakota Board of Medical and Osteopathic Examiners
    Search for license 3955
    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 South Dakota 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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Bills Medicare through one group practice

  1. Sacred Heart Health ServicesYankton, SD

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

Lawrence M. Leon among 106 diagnostic radiology physician records in South Dakota

Lawrence M. Leon, M.D. is one of 106 diagnostic radiology physician records with a practice address in South Dakota. 71% 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, 95% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated1991 · median 2003 among the 71 with a school on file
  • Record last updated2018 · 71% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Diagnostic Radiology Physician providers in South Dakota

There are 106 diagnostic radiology physician records in South Dakota.

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. Will Eidsness, M.D.Yankton, SD 570781093912636
  2. Bryan Barness, MDSioux Falls, SD 571041205882081
  3. David Bean, MDSioux Falls, SD 571041477515948
  4. Thomas Cink, MDSioux Falls, SD 571041326000886
  5. Gary Famestad, MDSioux Falls, SD 571041811959323
  6. Charles Flohr, MDSioux Falls, SD 571041306808738
  7. Meredith Hayes, M.D.Sioux Falls, SD 571041457339897
  8. Christopher Johansen, MDSioux Falls, SD 571041245250356

Common questions

What is Lawrence M. Leon, M.D.'s NPI number?

Lawrence M. Leon, M.D.'s National Provider Identifier (NPI) is 1316947922, issued on Jul 26, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Lawrence M. Leon, M.D. located?

The NPPES record lists a practice address at 1000 W 4TH St Ste 8, Yankton, SD, 57078. Phone: (605) 655-1414. Providers update this record themselves, so call before visiting.

How can I verify Lawrence M. Leon, M.D.'s license?

NPPES lists South Dakota license number 3955, as entered by the provider. Search the South Dakota Board of Medical and Osteopathic Examiners at https://www.sdbmoe.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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.