NPPES file of Aug 9, 2026

Mark D. Lasswell, CRNA

Certified Registered Nurse Anesthetist · Clinton, MO

Mark D. Lasswell, CRNA is a certified registered nurse anesthetist with a practice address in Clinton, Missouri, and NPI 1639164734, issued on Sep 14, 2005. Check the license (Missouri 115280, as entered in NPPES) with the Missouri board that licenses this profession; 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
1639164734
Name
Mark D. Lasswell
Credential
CRNA
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License number
115280 MO
Self-reported in NPPES; status is on the state search
Practice location
1600 N 2ND St, Clinton, MO 64735
Phone
(660) 885-5511
Enumerated
Sep 14, 2005
Record last updated
Mar 30, 2022
Medicaid IDs
158890001 AR
916892334 MO
100786980A OK
Medicare enrollment
Enrolled (PECOS I20050314000118); accepts Medicare assignment
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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8 nearest certified registered nurse anesthetist records → All 2,069 in Missouri → Look up another NPI →

Also registered at 1600 N 2ND St

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

  1. Leslie AndersonOccupational Therapist1508104233
  2. Kira Anglen, FNP-BCFamily Nurse Practitioner1629871298
  3. Jettie Bailey, BSN RN CWONDiabetes Educator Registered Nurse1316108590
  4. Cathryn Barth, RDRegistered Dietitian1821148727
  5. Graham BellamyPhysician Assistant1699638460
  6. Walter Bender, MDNephrology Physician1205803921

Verify Mark D. Lasswell in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Missouri board licenses this profession
    Search for license 115280    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
Find the Missouri 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. Golden Valley Memorial Hospital DistrictClinton, MO

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

Mark D. Lasswell among 2,069 certified registered nurse anesthetist records in Missouri

Mark D. Lasswell, CRNA is one of 2,069 certified registered nurse anesthetist records with a practice address in Missouri. 77% 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, 93% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated1993 · median 2013 among the 1,508 with a school on file
  • Record last updated2022 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

9 certified registered nurse anesthetist records list a practice address in Clinton

They are 9 of the 403 NPPES records with a practice address in Clinton, and 2,069 certified registered nurse anesthetist records in Missouri.

All 2,069 in Missouri → Every provider in Clinton → Certified Registered Nurse Anesthetist nationwide →

The 8 certified registered nurse anesthetist records with the nearest ZIP codes

  1. Daniel Campbell, CRNAClinton, MO 647351215414255
  2. Jonathan Finkle, DNAPClinton, MO 647351487330494
  3. Nicholas HillClinton, MO 647351447333083
  4. Robert Hoover, CRNAClinton, MO 647351598407439
  5. Thomas McKenneyClinton, MO 647351760552285
  6. Daniel Searing, CRNAClinton, MO 647351104886050
  7. Jeffrey Spitler, CRNAClinton, MO 647351073812467
  8. Mary Wetzel, CRNAClinton, MO 647351881745131

Common questions

What is Mark D. Lasswell, CRNA's NPI number?

Mark D. Lasswell, CRNA's National Provider Identifier (NPI) is 1639164734, issued on Sep 14, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Mark D. Lasswell, CRNA located?

The NPPES record lists a practice address at 1600 N 2ND St, Clinton, MO, 64735. Phone: (660) 885-5511. Providers update this record themselves, so call before visiting.

How can I verify Mark D. Lasswell, CRNA's license?

NPPES lists Missouri license number 115280, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.