Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Neil B Geisler, CRNA

Individual provider Certified Registered Nurse Anesthetist · NPI 1215113915

Neil B Geisler, CRNA is registered under Certified Registered Nurse Anesthetist (CRNA) in Marshfield, Wisconsin. Qualified in 2007, 19 years ago. Practices with Mchs Hospitals Inc, a 1,194-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Kansas, Missouri and Wisconsin.

Years since qualifying
19
Licensed in
KS, MO, WI
In the registry since
2008
Specialties on file
3
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

1000 N Oak Ave
Marshfield, WI 54449-5703
Phone: (715) 387-5511
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 3901 Rainbow Blvd, Kansas City, KS 66160-8500 — (913) 588-3736

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence 43-557061-102 (KS)
Certified Registered Nurse Anesthetist Taxonomy 367500000X · Licence 2015027896 (MO)
Certified Registered Nurse Anesthetist Taxonomy 367500000X · Licence 2015027896 (WI)

Record details

NPI number1215113915
Entity typeIndividual (Type 1)
GenderMale
Credentials CRNA
Sole proprietorNo
NPI enumeratedJanuary 14, 2008
Last updated in NPPESApril 2, 2026
Certification dateApril 2, 2026

Medicare enrollment

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

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 2007 (19 years in practice)
Group practice McHs Hospitals Inc — 1194 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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 age71

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.

  • Marshfield Medical Center Hospital · Marshfield, WI

Colleagues at Mchs Hospitals Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1194 clinicians in the practice; 12 are shown here.

Other providers in Marshfield