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

Michael W Johnston, CRNA

Individual provider Certified Registered Nurse Anesthetist · NPI 1215909577

Michael W Johnston, CRNA is registered under Certified Registered Nurse Anesthetist (CRNA) in Austin, Texas. Qualified in 2005, 21 years ago. Practices with Humboldt General Hospital, a 42-clinician group and accepts Medicare assignment. Licensed in Minnesota.

Years since qualifying
21
Licensed in
MN
In the registry since
2006
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

8310 N Capital Of Texas Hwy Ste 350
Austin, TX 78731-1011 Not confirmed with CMS for 19 years — call before visiting
Phone: (512) 342-2382
Fax: (512) 342-2878
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence R158787-8 (MN)

Record details

NPI number1215909577
Entity typeIndividual (Type 1)
GenderMale
Credentials CRNA
Sole proprietorNo
NPI enumeratedFebruary 2, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 2005 (21 years in practice)
Group practice Humboldt General Hospital — 42 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 patients275
Services billed 352 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.

Colleagues at Humboldt General Hospital

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 42 clinicians in the practice; 12 are shown here.

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