ALEXANDER ALLAN TOMAS APRN, CRNA
NPI 1346608098
Nurse Anesthetist, Certified Registered in Winfield, IL
About Alexander Allan Tomas Aprn, Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEXANDER ALLAN TOMAS APRN, CRNA (NPI 1346608098) is an individual nurse anesthetist, certified registered in Winfield, Illinois, licensed in Illinois (209020649) and active in the NPI registry since February 2016. He is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Delnor Community Hospital, and is a graduate of Other (2016).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 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
Alexander Allan Tomas Aprn, 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
13Medicare enrollment records show Alexander Tomas reassigns Medicare billing to 13 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 4,817 clinicians in this Medicare group
Rockford, IL 61114
- Reassigned Medicare billing, Illinois enrollment
- 1,375 clinicians in this Medicare group
Janesville, WI 53548
- Reassigned Medicare billing, Illinois enrollment
- 671 clinicians in this Medicare group
Galesburg, IL 61401
- Reassigned Medicare billing, Illinois enrollment
- 142 clinicians in this Medicare group
Kalamazoo, MI 49008
- Reassigned Medicare billing, Michigan enrollment
- 152 clinicians in this Medicare group
Grand Rapids, MI 49503
- Reassigned Medicare billing, Michigan enrollment
- 199 clinicians in this Medicare group
Grand Blanc, MI 48439
- Reassigned Medicare billing, Michigan enrollment
- 154 clinicians in this Medicare group
Saint Clair Shores, MI 48081
- Reassigned Medicare billing, Michigan enrollment
- 99 clinicians in this Medicare group
New Castle, DE 19720
- Reassigned Medicare billing, Delaware enrollment
- 348 clinicians in this Medicare group
Berwyn, PA 19312
- Reassigned Medicare billing, Pennsylvania enrollment
- 3,488 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 2
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.
Northwestern Medicine Delnor Community Hospital
Acute Care Hospitals · Geneva, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60190 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
WINFIELD, IL 60190
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 Alexander Tomas's NPI number?
The NPI number for Alexander Tomas is 1346608098. It was assigned to this individual provider in the NPPES registry on February 9, 2016.
Where is Alexander Tomas located?
Alexander Tomas practices at 25 N Winfield Rd, Winfield, IL 60190. The listed phone number is (630) 933-6675.
What is Alexander Tomas's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Alexander Tomas enrolled in Medicare?
Yes. Alexander Tomas 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 Alexander Tomas's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Tomas reassigns Medicare benefits to 13 organizations: Northwestern Medical Faculty Foundation (Carol Stream, IL), Rockford Health Physicians (Rockford, IL), Mercy Health System Corporation (Janesville, WI), Clinical Colleagues LLC (Galesburg, IL), Kalamazoo Anesthesiology P C (Kalamazoo, MI) and 8 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 Alexander Tomas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alexander Tomas accept?
Health plans from Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Alexander Tomas 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 Alexander Tomas affiliated with any hospitals?
According to CMS data, Alexander Tomas is affiliated with Northwestern Medicine Delnor Community Hospital.
When was this NPI record last updated?
The NPPES record for Alexander Tomas was last updated on July 12, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Alexander Allan Tomas, APRN, CRNA · NPI 1346608098
Nurse Anesthetist, Certified Registered physician in Winfield, Illinois. Individual provider, active in the CMS NPPES registry since February 9, 2016.
## Identity
- **NPI:** 1346608098 (Entity type: Individual)
- **Enumerated:** February 9, 2016
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 209020649 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 25 N WINFIELD RD, Winfield, IL 60190-1379
- **Phone:** (630) 933-6675 · **Fax:** (630) 933-2614
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging
- **Bills Medicare through:** 13 organizations under Medicare reassignment (form CMS-855R): Northwestern Medical Faculty Foundation (NPI 1346235314, Carol Stream, IL); Rockford Health Physicians (NPI 1043242886, Rockford, IL); Mercy Health System Corporation (NPI 1598718603, Janesville, WI); Clinical Colleagues LLC (NPI 1316399967, Galesburg, IL); Kalamazoo Anesthesiology P C (NPI 1407821796, Kalamazoo, MI); and 8 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** July 12, 2024
- **Other identifiers:** Other 4704319374 (MI)
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Source: [NPI Profile](https://npiprofile.com/npi/1346608098) · Data from the CMS NPPES public registry.