DIANA MARIE BAKER CRNA
NPI 1053913491
Nurse Anesthetist, Certified Registered in Ann Arbor, MI
About Diana Marie Baker Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DIANA MARIE BAKER CRNA (NPI 1053913491) is an individual nurse anesthetist, certified registered in Ann Arbor, Michigan, licensed in Michigan (4704304003) and active in the NPI registry since November 2020. She is affiliated with University Of Michigan Health System, maintains a secondary practice location in Warren, and is a graduate of Other (2020).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Diana Marie Baker Crna is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Diana Baker reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Ann Arbor, MI 48109
- Reassigned Medicare billing, Michigan enrollment
- Also billed through NPI 1003848144 (Michigan)
- 277 clinicians in this Medicare group
Madison Heights, MI 48071
- Reassigned Medicare billing, Michigan enrollment
- Also billed through NPI 1396789434 (Michigan)
- 77 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
University Of Michigan Health System
Acute Care Hospitals · Ann Arbor, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48109 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Diana Baker's NPI number?
The NPI number for Diana Baker is 1053913491. It was assigned to this individual provider in the NPPES registry on November 11, 2020. The provider is also known as Diana Marie Nagle Crna.
Where is Diana Baker located?
Diana Baker practices at 1500 E Medical Center Dr, Ann Arbor, MI 48109. The listed phone number is (734) 936-4000.
What is Diana Baker's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Diana Baker enrolled in Medicare?
Yes. Diana Baker is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Diana Baker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Diana Baker reassigns Medicare benefits to 2 organizations: Regents Of The University Of Michigan (Ann Arbor, MI) and Henry Ford Health Macomb-Oakland Hospital (Madison Heights, MI). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Diana Baker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Diana Baker accept?
Health plans from Priority Health list Diana Baker as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Diana Baker affiliated with any hospitals?
According to CMS data, Diana Baker is affiliated with University Of Michigan Health System.
When was this NPI record last updated?
The NPPES record for Diana Baker was last updated on December 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Diana Marie Baker, CRNA · NPI 1053913491
Nurse Anesthetist, Certified Registered physician in Ann Arbor, Michigan. Individual provider, active in the CMS NPPES registry since November 11, 2020.
## Identity
- **NPI:** 1053913491 (Entity type: Individual)
- **Enumerated:** November 11, 2020
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 4704304003 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 1500 E MEDICAL CENTER DR, Ann Arbor, MI 48109-5000
- **Phone:** (734) 936-4000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Regents Of The University Of Michigan (NPI 1528010428, Ann Arbor, MI); Henry Ford Health Macomb-Oakland Hospital (NPI 1871793505, Madison Heights, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** December 12, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1053913491) · Data from the CMS NPPES public registry.