SHEILA R. WILLIAMSON CRNA
NPI 1700188026
Nurse Anesthetist, Certified Registered in Pontiac, MI
About Sheila R. Williamson Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SHEILA R. WILLIAMSON CRNA (NPI 1700188026) is an individual nurse anesthetist, certified registered in Pontiac, Michigan, licensed in Michigan (4704222106) and active in the NPI registry since November 2010. She is a graduate of Other (2010).
NPPES Registry Identity
Specialties & Licenses
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
Sheila R. 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
9Medicare enrollment records show Sheila Williamson reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Troy, MI 48098
- Reassigned Medicare billing, Michigan enrollment
- 87 clinicians in this Medicare group
Troy, MI 48098
- Reassigned Medicare billing, Michigan enrollment
- 176 clinicians in this Medicare group
West Bloomfield, MI 48322
- Reassigned Medicare billing, Michigan enrollment
- 161 clinicians in this Medicare group
West Bloomfield, MI 48323
- Reassigned Medicare billing, Michigan enrollment
- 39 clinicians in this Medicare group
Macomb, MI 48044
- Reassigned Medicare billing, Michigan enrollment
- 87 clinicians in this Medicare group
Detroit, MI 48202
- Reassigned Medicare billing, Michigan enrollment
- 306 clinicians in this Medicare group
Flint, MI 48507
- Reassigned Medicare billing, Michigan enrollment
- 75 clinicians in this Medicare group
Southfield, MI 48075
- Reassigned Medicare billing, Michigan enrollment
- 209 clinicians in this Medicare group
Irving, TX 75038
- Reassigned Medicare billing, Michigan enrollment
- 283 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48341 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.
PONTIAC, MI 48341
PONTIAC, MI 48341
PONTIAC, MI 48341
PONTIAC, MI 48341
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 Sheila Williamson's NPI number?
The NPI number for Sheila Williamson is 1700188026. It was assigned to this individual provider in the NPPES registry on November 18, 2010.
Where is Sheila Williamson located?
Sheila Williamson practices at 44405 Woodward Ave, Pontiac, MI 48341. The listed phone number is (248) 858-6539.
What is Sheila Williamson's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Sheila Williamson enrolled in Medicare?
Yes. Sheila 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 Sheila Williamson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sheila Williamson reassigns Medicare benefits to 9 organizations: Surgical Centers Of Michigan, LLC (Troy, MI), Superior Anesthetists Associates, Inc. (Troy, MI), Henry Ford West Bloomfield Hospital (West Bloomfield, MI), Michigan Interventional Pain Associates PLLC (West Bloomfield, MI), Macomb Endoscopy Center Plc (Macomb, MI) and 4 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 Sheila Williamson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sheila Williamson accept?
Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company and Priority Health list Sheila Williamson 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.
When was this NPI record last updated?
The NPPES record for Sheila Williamson was last updated on November 18, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years 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.
# Sheila R. Williamson, CRNA · NPI 1700188026
Nurse Anesthetist, Certified Registered physician in Pontiac, Michigan. Individual provider, active in the CMS NPPES registry since November 18, 2010.
## Identity
- **NPI:** 1700188026 (Entity type: Individual)
- **Enumerated:** November 18, 2010
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 4704222106 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 44405 WOODWARD AVE, Pontiac, MI 48341-5023
- **Phone:** (248) 858-6539
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 9 organizations under Medicare reassignment (form CMS-855R): Surgical Centers Of Michigan, LLC (NPI 1518367234, Troy, MI); Superior Anesthetists Associates, Inc. (NPI 1831144518, Troy, MI); Henry Ford West Bloomfield Hospital (NPI 1518104686, West Bloomfield, MI); Michigan Interventional Pain Associates PLLC (NPI 1861819161, West Bloomfield, MI); Macomb Endoscopy Center Plc (NPI 1780923128, Macomb, MI); and 4 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2010
## Record status
- **NPPES last updated:** November 18, 2010
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Source: [NPI Profile](https://npiprofile.com/npi/1700188026) · Data from the CMS NPPES public registry.