Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mark D Lasswell, CRNA

Individual provider Certified Registered Nurse Anesthetist · NPI 1639164734

Mark D Lasswell, CRNA is registered under Certified Registered Nurse Anesthetist (CRNA) in Clinton, Missouri. Qualified in 1993, 33 years ago. Practices with Golden Valley Memorial Hospital District, a 137-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
33
Licensed in
MO
In the registry since
2005
What do these letters mean?
CRNA — Certified Registered Nurse Anesthetist
An advanced practice nurse who administers anaesthesia.

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Practice location Address checks out

1600 N 2nd St
Clinton, MO 64735-1297
Phone: (660) 885-5511
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 251 Skaggs Rd, Branson, MO 65616-2031 — (800) 277-8151

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence 115280 (MO)

Record details

NPI number1639164734
Entity typeIndividual (Type 1)
GenderMale
Credentials CRNA
Sole proprietorNo
NPI enumeratedSeptember 14, 2005
Last updated in NPPESMarch 30, 2022
Certification dateMarch 30, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 1993 (33 years in practice)
Group practice Golden Valley Memorial Hospital District — 137 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients131
Services billed 137 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Golden Valley Memorial Hospital District

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 137 clinicians in the practice; 12 are shown here.

Other providers in Clinton