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MARK D LASSWELL CRNA
NPI 1639164734
Nurse Anesthetist, Certified Registered in Clinton, MO

Active since September 14, 2005Accepts Medicare Assignment
1600 N 2ND ST, CLINTON, MO 64735(660) 885-5511 Get Directions Write a Review

NPPES record last updated: March 30, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Mark D Lasswell Crna NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARK D LASSWELL CRNA (NPI 1639164734) is an individual nurse anesthetist, certified registered in Clinton, Missouri, licensed in Missouri (115280) and active in the NPI registry since September 2005. He is affiliated with Golden Valley Memorial Hospital, maintains a secondary practice location in Branson, and is a graduate of Other (1993).

NPPES Registry Identity

NPI1639164734
Entity TypeIndividualMale
Primary Taxonomy367500000X
Provider Legal NameMARK D LASSWELLCredential: CRNA
Location Address1600 N 2ND STClinton, MO 64735-1297
Mailing Address1600 N 2nd StClinton, MO 64735-1297 · (660) 885-5511
Phone(660) 885-5511
Sole ProprietorNo
Medical School CMSOtherGraduated 1993
Enumeration DateSeptember 14, 2005
Last NPPES UpdateMarch 30, 2022
NPPES CertifiedMarch 30, 2022
✔ NPI 1639164734 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367500000X
License✔ Licensed in MO · 115280
Definition
(1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in management and resuscitation of critical patients in intensive care, coronary care, and emergency situations. Nurse anesthetists are certified following successful completion of credentials and state licensure review and a national examination directed by the Council on Certification of Nurse Anesthetists. (2) A registered nurse who is qualified by special training to administer anesthesia in collaboration with a physician or dentist and who can assist in the care of patients who are in critical condition.
1600 N 2ND ST, Clinton, MO 64735
Open in Google Maps ↗

Secondary Practice Location 1

Location 1251 Skaggs RdBranson, MO 65616-2031 · Phone (800) 277-8151

Other Identifiers 8

Medicaid100786980AOK
Other19411MO · Bcbs
Other741190MO · Healthlink
Medicaid916892334MO
OtherP00213245MO · Railroad
Other20174319965615A002MO · Tricare
Medicaid158890001AR
Other17703MO · Cox Health

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mark D Lasswell Crna is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9739134768
PECOS Enrollment IDI20050314000118

Medicare Billing Reassignments

2

Medicare enrollment records show Mark Lasswell reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Golden Valley Memorial Hospital District
Same address
Medicare Defined Swing Bed Unit
1600 N 2ND ST
Clinton, MO 64735
  • Reassigned Medicare billing, Missouri enrollment
  • 220 clinicians in this Medicare group
NPI 1538257183 (660) 890-7103
Capital Anesthesia Solutions Of Missouri LLC
212 mi
Anesthesiology
3100 OAK GROVE RD
Rombauer, MO 63901
  • Reassigned Medicare billing, Missouri enrollment
  • 217 clinicians in this Medicare group
NPI 1770185472 (239) 610-0775

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731
This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.
21 services21 patients
Anesthesia for lens surgery 00142
Anesthesia for lens surgery involves administering medication to numb the eye area, ensuring you feel no pain during the procedure. This can be a local anesthetic (numbing only the eye area) or general (where you're asleep). It helps make the surgery comfortable and stress-free.
18 services18 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Golden Valley Memorial Hospital

Acute Care Hospitals · Clinton, MO
4/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number260175
Location1600 N 2nd StClinton, MO 64735 · Henry County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 64735 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$121.96 typical visit price
range $52.28 – $161.24
Typical copayment $30.49 (range $13.07 – $40.31)
Most-billed visit code 99204
Established Patient
$65.71 typical visit price
range $16.30 – $131.05
Typical copayment $16.42 (range $4.07 – $32.76)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. BETH ANN HAKALA D.O., PH.D.
Emergency Medicine
1600 N 2ND ST
CLINTON, MO 64735
Henry County (660) 885-5511
KARL J. HAAKE MD
Anesthesiology (Pain Medicine)
1600 N 2ND ST
CLINTON, MO 64735
Henry County (913) 261-9081
DR. JOHN CURRIER BROWN M.D.
Emergency Medicine (Emergency Medical Services)
1600 N 2ND ST
CLINTON, MO 64735
Henry County (660) 885-5511
LISA E SUSUNAGA RN
Registered Nurse
1600 N 2ND ST
CLINTON, MO 64735
Henry County (660) 885-5511
REVIVE MEDICAL GROUP, P.C.
Psychiatry & Neurology (Psychiatry)
1600 N 2ND ST
CLINTON, MO 64735
Henry County (203) 430-1321
PHILLIP HICKS
Anesthesiology
1600 N 2ND ST
CLINTON, MO 64735
Henry County (660) 890-7103
DR. SUMMER D BRYANT M.D.
Pediatrics
1600 N 2ND ST
CLINTON, MO 64735
Henry County (660) 885-5511
MO-I MEDICAL SERVICES LLC
Emergency Medicine
1600 N 2ND ST
CLINTON, MO 64735
Henry County (469) 401-2386

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Lasswell's NPI number?

The NPI number for Mark Lasswell is 1639164734. It was assigned to this individual provider in the NPPES registry on September 14, 2005.

Where is Mark Lasswell located?

Mark Lasswell practices at 1600 N 2nd St, Clinton, MO 64735. The listed phone number is (660) 885-5511.

What is Mark Lasswell's specialty?

The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.

Is Mark Lasswell enrolled in Medicare?

Yes. Mark Lasswell is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Mark Lasswell's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Lasswell reassigns Medicare benefits to 2 organizations: Golden Valley Memorial Hospital District (Clinton, MO) and Capital Anesthesia Solutions Of Missouri LLC (Rombauer, MO). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mark Lasswell's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mark Lasswell accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 2 other insurers list Mark Lasswell as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Mark Lasswell affiliated with any hospitals?

According to CMS data, Mark Lasswell is affiliated with Golden Valley Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Mark Lasswell was last updated on March 30, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.