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

Mr. Nicholas Patrick Callahan, MSN, CRNA

Individual provider Registered Nurse · NPI 1750901757

Mr. Nicholas Patrick Callahan, MSN, CRNA is a Certified Registered Nurse Anesthetist (CRNA) in Grand Rapids, Michigan. Qualified in 2020, 6 years ago. Practices with Northstar Anesthesia of Michigan II PC, a 22-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
6
Licensed in
MI
In the registry since
2020
Specialties on file
2
What do these letters mean?
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.
CRNA — Certified Registered Nurse Anesthetist
An advanced practice nurse who administers anaesthesia.

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Practice location Address checks out

200 Jefferson Ave SE
Grand Rapids, MI 49503-4502
Phone: (616) 685-5000
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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 4704303499NSA2006D (MI)
Registered Nurse Taxonomy 163W00000X · Licence 4704303499 (MI)

Record details

NPI number1750901757
Entity typeIndividual (Type 1)
GenderMale
Credentials MSN , CRNA
Sole proprietorNo
NPI enumeratedApril 20, 2020
Last updated in NPPESOctober 26, 2020
Certification dateOctober 26, 2020

Medicare enrollment

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

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 2020 (6 years in practice)
Group practice Northstar Anesthesia Of Michigan Ii Pc — 22 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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