MICHAEL W. ARMSTRONG CRNA
NPI 1578855953
Nurse Anesthetist, Certified Registered in Springfield, IL
About Michael W. Armstrong Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHAEL W. ARMSTRONG CRNA (NPI 1578855953) is an individual nurse anesthetist, certified registered in Springfield, Illinois, licensed in Illinois (209009002) and active in the NPI registry since May 2011. He is enrolled in Medicare PECOS, is affiliated with St Anthonys Memorial Hospital, and maintains a secondary practice location in Rockford.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Michael W. Armstrong 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 Michael Armstrong reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Springfield, IL 62781
- Reassigned Medicare billing, Illinois enrollment
- 102 clinicians in this Medicare group
Vandalia, IL 62471
- Reassigned Medicare billing, Illinois enrollment
- 652 clinicians in this Medicare group
Effingham, IL 62401
- Reassigned Medicare billing, Illinois enrollment
- 104 clinicians in this Medicare group
Galesburg, IL 61401
- Reassigned Medicare billing, Illinois enrollment
- 142 clinicians in this Medicare group
Sterling, IL 61081
- Reassigned Medicare billing, Illinois enrollment
- 21 clinicians in this Medicare group
Oak Park, IL 60302
- Reassigned Medicare billing, Illinois enrollment
- 826 clinicians in this Medicare group
Rockford, IL 61103
- Reassigned Medicare billing, Illinois enrollment
- 1,375 clinicians in this Medicare group
Evanston, IL 60201
- Reassigned Medicare billing, Illinois enrollment
- 4,841 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.
St Anthonys Memorial Hospital
Acute Care Hospitals · Effingham, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 62781 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.
SPRINGFIELD, IL 62781
SPRINGFIELD, IL 62781
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 Michael Armstrong's NPI number?
The NPI number for Michael Armstrong is 1578855953. It was assigned to this individual provider in the NPPES registry on May 4, 2011.
Where is Michael Armstrong located?
Michael Armstrong practices at 701 N 1st St, Springfield, IL 62781. The listed phone number is (217) 588-2624.
What is Michael Armstrong's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Michael Armstrong enrolled in Medicare?
Yes. Michael Armstrong 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 Michael Armstrong's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Armstrong reassigns Medicare benefits to 8 organizations: Memorial Medical Center (Springfield, IL), Sarah Bush Lincoln Health Center (Vandalia, IL), St Anthonys Memorial Hospital Of The Hospital Sisters Of The Third (Effingham, IL), Clinical Colleagues LLC (Galesburg, IL), Cgh Medical Center (Sterling, IL) 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 Michael Armstrong's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Michael Armstrong affiliated with any hospitals?
According to CMS data, Michael Armstrong is affiliated with St Anthonys Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Michael Armstrong was last updated on December 15, 2023. 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.
# Michael W. Armstrong, CRNA · NPI 1578855953
Nurse Anesthetist, Certified Registered physician in Springfield, Illinois. Individual provider, active in the CMS NPPES registry since May 4, 2011.
## Identity
- **NPI:** 1578855953 (Entity type: Individual)
- **Enumerated:** May 4, 2011
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 209009002 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 701 N 1ST ST, Springfield, IL 62781-9261
- **Phone:** (217) 588-2624
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging
- **Bills Medicare through:** 8 organizations under Medicare reassignment (form CMS-855R): Memorial Medical Center (NPI 1255393112, Springfield, IL); Sarah Bush Lincoln Health Center (NPI 1306959689, Vandalia, IL); St Anthonys Memorial Hospital Of The Hospital Sisters Of The Third (NPI 1306800602, Effingham, IL); Clinical Colleagues LLC (NPI 1316399967, Galesburg, IL); Cgh Medical Center (NPI 1902854623, Sterling, IL); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2011
## Record status
- **NPPES last updated:** December 15, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1578855953) · Data from the CMS NPPES public registry.