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

Craig Andrew Williamson, MD

Individual provider Neurocritical Care Physician · NPI 1114240173

Craig Andrew Williamson, MD is a Critical Care (Intensivists) in Ann Arbor, Michigan. Graduated from University of California, San Francisco School of Medicine in 2009, 17 years ago. Practices with Regents of the University of Michigan, a 3,271-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
17
Trained at
University of California, San Francisco School of Medicine
Licensed in
MI
In the registry since
2010
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1500 E Medical Center Dr
Ann Arbor, MI 48109-5000
Phone: (734) 936-5000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Neurocritical Care Physician (primary) Taxonomy 2084A2900X · Licence 4301102200 (MI)
Neurological Surgery Physician Taxonomy 207T00000X · Licence 4301102200 (MI)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X
Neurology Physician Taxonomy 2084N0400X · Licence 4301102200 (MI)

Record details

NPI number1114240173
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 4, 2010
Last updated in NPPESMarch 17, 2026
Certification dateMarch 17, 2026

Medicare enrollment

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

Medicare specialtyCRITICAL CARE (INTENSIVISTS)
Also practisesNEUROLOGY
Medical schoolUNIVERSITY OF CALIFORNIA, SAN FRANCISCO SCHOOL OF MEDICINE
Graduated 2009 (17 years in practice)
Group practice Regents Of The University Of Michigan — 3271 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations13 on file with Medicare

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