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

Delaney Catherine O'Brien, AA

Individual provider Anesthesiologist Assistant · NPI 1629716758

Delaney Catherine O'Brien, AA is an Anesthesiology Assistant in Grand Rapids, Michigan. Qualified in 2022, 4 years ago. Practices with West Michigan Anesthesia PC, a 81-clinician group, works from 5 locations and accepts Medicare assignment. Licensed in Michigan and Ohio.

Years since qualifying
4
Licensed in
MI, OH
In the registry since
2022
Specialties on file
3

Practice location Address checks out

100 Michigan St NE
Grand Rapids, MI 49503-2560
Phone: (616) 364-4200
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 3333 Evergreen Dr Ne, Grand Rapids, MI 49525-9493 — (616) 364-4200
  • 5900 Byron Center Ave Sw, Wyoming, MI 49519-9606 — (616) 364-4200
  • 5901 Monclova Rd, Maumee, OH 43537-1841 — (419) 897-8349
  • 3000 Arlington Ave, Toledo, OH 43614-2598 — (419) 383-3556

Specialties & licences

Anesthesiologist Assistant (primary) Taxonomy 367H00000X · Licence 32698139 (MI)
Anesthesiologist Assistant Taxonomy 367H00000X (OH)
Anesthesiologist Assistant Taxonomy 367H00000X · Licence 67.000441 (OH)

Record details

NPI number1629716758
Entity typeIndividual (Type 1)
GenderFemale
Credentials AA
Sole proprietorNo
NPI enumeratedMay 27, 2022
Last updated in NPPESOctober 2, 2024
Certification dateOctober 2, 2024

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY ASSISTANT
Medical schoolOTHER
Graduated 2022 (4 years in practice)
Group practice West Michigan Anesthesia Pc — 81 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Grand Rapids