NPPES file of Aug 9, 2026

Gerald Bret Marsh, CRNA

Certified Registered Nurse Anesthetist · Ann Arbor, MI

Gerald Bret Marsh, CRNA is a certified registered nurse anesthetist with a practice address in Ann Arbor, Michigan, and NPI 1619853116, issued on Aug 12, 2025. Check the license (Michigan 4704356915, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1619853116
Name
Gerald Bret Marsh
Credential
CRNA
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License number
4704356915 MI
Self-reported in NPPES; status is on the state search
Practice location
1500 E Medical Center Dr, Ann Arbor, MI 48109
Phone
(734) 936-4000
Enumerated
Aug 12, 2025
Record last updated
Oct 6, 2025
Medicare enrollment
Enrolled (PECOS I20251023000866); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1500 E Medical Center Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Bryan Aaron, MDObstetrics & Gynecology Physician1578307724
  2. Keith Aaronson, MDAdvanced Heart Failure and Transplant Cardiology Physician1144305301
  3. Rajani Aatre, M.S., M.SC.Genetic Counselor (M.S.)1962122457
  4. Anjelica Abate, MDDiagnostic Radiology Physician1841819216
  5. Nicole Abbott, CRNACertified Registered Nurse Anesthetist1790329860
  6. Ahmed Abdel-Latif, M.D.Interventional Cardiology Physician1518181239

Verify Gerald Bret Marsh in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Michigan board licenses this profession
    Search for license 4704356915
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Michigan license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Regents OF The University OF MichiganAnn Arbor, MI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Gerald Bret Marsh among 3,298 certified registered nurse anesthetist records in Michigan

Gerald Bret Marsh, CRNA is one of 3,298 certified registered nurse anesthetist records with a practice address in Michigan. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2025, is newer than 98% of them.

  • NPI issued2025 · 98% of these records are older, under 1% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 75% of these records are
  • Graduated2025 · median 2012 among the 2,454 with a school on file
  • Record last updated2025 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

381 certified registered nurse anesthetist records list a practice address in Ann Arbor

They are 381 of the 15,616 NPPES records with a practice address in Ann Arbor, and 3,298 certified registered nurse anesthetist records in Michigan.

The 8 certified registered nurse anesthetist records with the nearest ZIP codes

  1. Jaime Bagnell-Leonardo, CRNAAnn Arbor, MI 481091689640526
  2. Nicole Bills, CRNAAnn Arbor, MI 481091255307146
  3. Rebecca Braathen, CRNAAnn Arbor, MI 481091861468746
  4. Christina Bush, CRNAAnn Arbor, MI 481091841267788
  5. Karen Cesarz-Biagioli, CRNAAnn Arbor, MI 481091902898604
  6. Renee Chulski, CRNAAnn Arbor, MI 481091164499034
  7. Annette Cope, CRNAAnn Arbor, MI 481091811976012
  8. Angela Griffiths, CRNAAnn Arbor, MI 481091164401683

Common questions

What is Gerald Bret Marsh, CRNA's NPI number?

Gerald Bret Marsh, CRNA's National Provider Identifier (NPI) is 1619853116, issued on Aug 12, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Gerald Bret Marsh, CRNA located?

The NPPES record lists a practice address at 1500 E Medical Center Dr, Ann Arbor, MI, 48109. Phone: (734) 936-4000. Providers update this record themselves, so call before visiting.

How can I verify Gerald Bret Marsh, CRNA's license?

NPPES lists Michigan license number 4704356915, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.

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.