ANGELA ANN WILLIAMSON CRNA
NPI 1659676286
Nurse Anesthetist, Certified Registered in Saginaw, MI
About Angela Ann Williamson Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANGELA ANN WILLIAMSON CRNA (NPI 1659676286) is an individual nurse anesthetist, certified registered in Saginaw, Michigan, licensed in Michigan (4704232882) and active in the NPI registry since January 2011. She is affiliated with Lee Memorial Hospital and is a graduate of Other (2010).
NPPES Registry Identity
Specialties & Licenses
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
Angela Ann Williamson 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
8Medicare enrollment records show Angela Williamson reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saginaw, MI 48602
- Reassigned Medicare billing, Michigan enrollment
- 126 clinicians in this Medicare group
Midland, MI 48670
- Reassigned Medicare billing, Michigan enrollment
- 88 clinicians in this Medicare group
Clare, MI 48617
- Reassigned Medicare billing, Michigan enrollment
- 26 clinicians in this Medicare group
West Branch, MI 48661
- Reassigned Medicare billing, Michigan enrollment
- 179 clinicians in this Medicare group
Alpena, MI 49707
- Reassigned Medicare billing, Michigan enrollment
- 15 clinicians in this Medicare group
Kincheloe, MI 49788
- Reassigned Medicare billing, Michigan enrollment
- 185 clinicians in this Medicare group
Chester, SC 29706
- Reassigned Medicare billing, South Carolina enrollment
- 357 clinicians in this Medicare group
Maitland, FL 32751
- Reassigned Medicare billing, Florida enrollment
- 2,356 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.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Lee Memorial Hospital
Acute Care Hospitals · Fort Myers, FLCape Coral Hospital
Acute Care Hospitals · Cape Coral, FLMymichigan Medical Center Alpena
Acute Care Hospitals · Alpena, MICovenant Medical Center
Acute Care Hospitals · Saginaw, MIMymichigan Medical Center Midland
Acute Care Hospitals · Midland, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48602 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.
SAGINAW, MI 48602
SAGINAW, MI 48602
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 Angela Williamson's NPI number?
The NPI number for Angela Williamson is 1659676286. It was assigned to this individual provider in the NPPES registry on January 12, 2011.
Where is Angela Williamson located?
Angela Williamson practices at 1447 N Harrison St, Saginaw, MI 48602. The listed phone number is (989) 583-6237.
What is Angela Williamson's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Angela Williamson enrolled in Medicare?
Yes. Angela Williamson 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 Angela Williamson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Angela Williamson reassigns Medicare benefits to 8 organizations: Covenant Medical Center, Inc. (Saginaw, MI), Mymichigan Medical Center Midland (Midland, MI), Mymichigan Medical Center Clare (Clare, MI), Mymichigan Medical Center West Branch (West Branch, MI), Mymichigan Medical Center Alpena (Alpena, MI) and 3 more organizations, listed in the Medicare section above. 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 Angela Williamson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Angela Williamson affiliated with any hospitals?
According to CMS data, Angela Williamson is affiliated with Lee Memorial Hospital, Cape Coral Hospital, Mymichigan Medical Center Alpena, Covenant Medical Center and Mymichigan Medical Center Midland.
When was this NPI record last updated?
The NPPES record for Angela Williamson was last updated on March 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Angela Ann Williamson, CRNA · NPI 1659676286
Nurse Anesthetist, Certified Registered physician in Saginaw, Michigan. Individual provider, active in the CMS NPPES registry since January 12, 2011.
## Identity
- **NPI:** 1659676286 (Entity type: Individual)
- **Enumerated:** January 12, 2011
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 4704232882 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 1447 N HARRISON ST, Saginaw, MI 48602-4727
- **Phone:** (989) 583-6237 · **Fax:** (989) 583-6032
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 8 organizations under Medicare reassignment (form CMS-855R): Covenant Medical Center, Inc. (NPI 1225151897, Saginaw, MI); Mymichigan Medical Center Midland (NPI 1770668683, Midland, MI); Mymichigan Medical Center Clare (NPI 1417084278, Clare, MI); Mymichigan Medical Center West Branch (NPI 1518418292, West Branch, MI); Mymichigan Medical Center Alpena (NPI 1770667149, Alpena, MI); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2010
## Record status
- **NPPES last updated:** March 4, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1659676286) · Data from the CMS NPPES public registry.