Michelle Ater, FNP-BC
Family Nurse Practitioner · Rockford, IL
Michelle Ater, FNP-BC is a family nurse practitioner with a practice address in Rockford, Illinois, and NPI 1811540040, issued on Jul 17, 2019. Check the license (Illinois 209019114, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Michelle Ater
- Credential
- FNP-BC
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 209019114 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2222 E State St Ste 209, Rockford, IL 61104
- Phone
- (815) 988-8500
- Enumerated
- Jul 17, 2019
- Record last updated
- Jul 17, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (815) 977-5956
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 7,639 in Illinois → Look up another NPI →
Also registered at 2222 E State St Ste 209
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Justine Beaman, FNP-BCFamily Nurse Practitioner1780227124
- Olivia CastellanosFamily Nurse Practitioner1821551599
- Rachel Caudle, NPFamily Nurse Practitioner1649877416
Verify Michelle Ater in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 209019114Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.7 times the Medicare Part D claims of the average family nurse practitioner in 2024
4,775 Medicare Part D claims for 251 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 26 claims were for opioids.
Most prescribed
- Atorvastatin Calcium264 claims
- Amlodipine Besylate199 claims
- Sertraline Hcl182 claims
- Quetiapine Fumarate178 claims
- Lisinopril165 claims
- Buspirone Hcl149 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 52.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Michelle Ater among 7,639 family nurse practitioner records in Illinois
Michelle Ater, FNP-BC is one of 7,639 family nurse practitioner records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 51% of them.
- NPI issued2019 · 51% of these records are older, 41% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2019 · 39% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
236 family nurse practitioner records list a practice address in Rockford
They are 236 of the 3,893 NPPES records with a practice address in Rockford, and 7,639 family nurse practitioner records in Illinois.
All 7,639 in Illinois → Every provider in Rockford → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Eveleen Ackerman, F.N.P.Rockford, IL 611041568444008
- Amy Buchenau, APNRockford, IL 611041912149337
- Erica Cook, APNRockford, IL 611041205106341
- Sandra NienaberRockford, IL 611041104015742
- Nicole Owens, FNPRockford, IL 611041811305758
- Purvi Patel, FNPRockford, IL 611041881097244
- Laurie Podeszwa, APRNRockford, IL 611041407990708
- Rachael Reinagle, FNP-BCRockford, IL 611041114362753
Common questions
What is Michelle Ater, FNP-BC's NPI number?
Michelle Ater, FNP-BC's National Provider Identifier (NPI) is 1811540040, issued on Jul 17, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Michelle Ater, FNP-BC located?
The NPPES record lists a practice address at 2222 E State St Ste 209, Rockford, IL, 61104. Phone: (815) 988-8500. Providers update this record themselves, so call before visiting.
How can I verify Michelle Ater, FNP-BC's license?
NPPES lists Illinois license number 209019114, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Michelle Ater, FNP-BC prescribe under Medicare Part D?
In 2024, Michelle Ater, FNP-BC had 4,775 Medicare Part D claims for 251 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
What is Michelle Ater, FNP-BC's MIPS final score?
The 2023 MIPS final score is 52.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.