Michelle Ater, FNP-BC
NPI 1811540040 · Family Nurse Practitioner · Rockford, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michelle Ater, FNP-BC is a Family Nurse Practitioner provider in Rockford, IL (NPI 1811540040).
Provider details
- NPI number
- 1811540040
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- 209019114 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
6 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
16 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Residence Visit for Established Patient With Low Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99348 | 16 | $59 |
Typical Medicare-allowed amounts for these services range $59–$59 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 95 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 264 | 58 |
| Amlodipine Besylate | 199 | 45 |
| Sertraline Hcl | 182 | 24 |
| Quetiapine Fumarate | 178 | 20 |
| Lisinopril | 165 | 37 |
| Buspirone Hcl | 149 | 35 |
| Trazodone Hcl | 138 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-07-17
- Last updated
- 2019-07-17
Frequently asked questions
- What is Michelle Ater's NPI number?
- Michelle Ater's National Provider Identifier (NPI) is 1811540040, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michelle Ater's specialty?
- Michelle Ater is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Michelle Ater located?
- Michelle Ater's practice location on file with NPPES is 2222 E State St Ste 209, Rockford, IL 61104-1572.
- What is Michelle Ater's phone number?
- The practice phone number listed in the NPPES registry for Michelle Ater is (815) 988-8500.
- Does Michelle Ater accept Medicare?
- Michelle Ater is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michelle Ater's NPI active?
- Yes — Michelle Ater's NPI (1811540040) is active in the NPPES registry as of the last update on 2019-07-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.