Delaney Catherine O'Brien, AA
Anesthesiologist Assistant · Grand Rapids, MI
Delaney Catherine O'Brien, AA is an anesthesiologist assistant with a practice address in Grand Rapids, Michigan, and NPI 1629716758, issued on May 27, 2022. Check the license (Michigan 32698139, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Delaney Catherine O'Brien
- Credential
- AA
- Primary taxonomy
- Anesthesiologist Assistant 367H00000X
- License numbers
- 32698139 MI
67.000441 OH
Self-reported in NPPES; status is on the state search - Practice location
- 100 Michigan St NE, Grand Rapids, MI 49503
- Phone
- (616) 364-4200
- Enumerated
- May 27, 2022
- Record last updated
- Oct 2, 2024
- Medicare enrollment
- Enrolled (PECOS I20230706002622); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest anesthesiologist assistant records → All 38 in Michigan → Look up another NPI →
Also registered at 100 Michigan St NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Shefali Aggarwal, M.DPediatric Critical Care Medicine Physician1720408313
- Muhammad Ali Akbar, MDInternal Medicine Physician1518529742
- Ghassan Al Nabhan, M.D.Internal Medicine Physician1326458068
- Zain AlajjouriEmergency Medicine Physician1366183295
Verify Delaney Catherine O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 32698139Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 76.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- University OF Toledo Physicians LLCToledo, OH
- West Michigan Anesthesia PCGrand Rapids, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Delaney Catherine O'Brien among 38 anesthesiologist assistant records in Michigan
Delaney Catherine O'Brien, AA is one of 38 anesthesiologist assistant records with a practice address in Michigan. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 79% of them.
- NPI issued2022 · 79% of these records are older, 16% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 89% of these records are
- Graduated2022 · median 2018 among the 34 with a school on file
- Record last updated2024 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367H00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anesthesiologist Assistant providers in Michigan
There are 38 anesthesiologist assistant records in Michigan.
All 38 in Michigan → Every provider in Grand Rapids → Anesthesiologist Assistant nationwide →
The 8 anesthesiologist assistant records with the nearest ZIP codes
- Skylar BayerGrand Rapids, MI 495031811541774
- Patrick Carnes, CAAGrand Rapids, MI 495031629250162
- Jason Dipman, AA-CGrand Rapids, MI 495031053694976
- Danita DreffsGrand Rapids, MI 495031578166542
- Zachary KrolGrand Rapids, MI 495031841886553
- Alexander Linkner, CAAGrand Rapids, MI 495031427697499
- Camille Meadows, AA-CGrand Rapids, MI 495031215318050
- Lonnie MeadowsGrand Rapids, MI 495031245611086
Common questions
What is Delaney Catherine O'Brien, AA's NPI number?
Delaney Catherine O'Brien, AA's National Provider Identifier (NPI) is 1629716758, issued on May 27, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Delaney Catherine O'Brien, AA located?
The NPPES record lists a practice address at 100 Michigan St NE, Grand Rapids, MI, 49503. Phone: (616) 364-4200. Providers update this record themselves, so call before visiting.
How can I verify Delaney Catherine O'Brien, AA's license?
NPPES lists Michigan license number 32698139, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
What is Delaney Catherine O'Brien, AA's MIPS final score?
The 2023 MIPS final score is 76.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.