NPI registry status
Active
2026 NPPES data Family Nurse Practitioner NPI 1447638887 APRN
Verify on CMS → Ann Altgilbers, APRN
Family Nurse Practitioner in Maryville, Illinois.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 210,832 in Family Nurse Practitioner, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
2K
Medicare Part D claims · 302 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
29%
generic claims · 62% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
74.4/100
▼ 9 pts below national avg 83.1 · Mid-tier
Industry payments
$1.5K
63 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Ann Altgilbers, APRN reported a CMS MIPS final score of 74.4/100 - below the 83.1 national average - and filed 2,405 Medicare Part D claims in 2023.
- 74.4/100
- MIPS score · -9 vs avg
- 2K
- Part D claims, 2023
- 29%
- generic prescribing
- $1.5K
- industry payments (Sunshine Act)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Ann Altgilbers, APRN's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
74 12th percentile higher than 12% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Ann Altgilbers, APRN sits
This provider among family nurse practitioner peers
Across the 27,154 family nurse practitioner providers who report both Medicare Part D prescribing and a MIPS quality score, Ann Altgilbers, APRN writes more Part D claims than 84% of them and scores higher on MIPS quality than 12% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one family nurse practitioner peer from a representative sample of 60; the gold marker is Ann Altgilbers, APRN. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Ann Altgilbers, APRN?
Below national averagePrimary specialty
Family Nurse Practitioner
Medicare Part D claims
2,405 97% vs specialty avg
MIPS final score
74.4/100 8.7 pts vs avg
Specialty distribution in Illinois
How Family Nurse Practitioner compares to other specialties among Illinois providers
Medicare quality performance, MIPS
Ann Altgilbers, APRN's 2023 MIPS final score plotted against the Family Nurse Practitioner national average
- MIPS Final Score
- 74.4/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Family Nurse Practitioner) - 74.4/100 vs national avg 83.1
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Ann Altgilbers, APRN appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding APRN credentials at 2133 VADALABENE DR STE 1, Maryville, IL, 62062, with a listed phone of (618) 288-4350. NPI 1447638887 was issued on 05/18/2015.
Medicare Part D records for calendar year 2023 show 2,405 prescription claims written by this provider, covering 302 Medicare beneficiaries and totaling roughly $2.0 million in drug spend, split 62% brand-name and 29% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 74.4/100 for the 2023 performance year (Quality 70.3, Cost 56.9), compared with the national average of 83.1.
Family Nurse Practitioner is a high-volume specialty nationwide, with 210,832 enrolled providers across 56 states and an average of 1,222 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1447638887 |
|---|---|
| Specialty | Family Nurse Practitioner |
| Credentials | APRN |
| Gender | Female |
| NPI Issued | 05/18/2015 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
74.4218
Final Score
Avg: 83.1
70.3122
Quality
56.927
Cost
85
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Ann Altgilbers, APRN bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Anderson Medical Group LLC
Maryville, IL
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Ann Altgilbers, APRN. Source: openpaymentsdata.cms.gov.
Total received
$1.5K
Largest payer
Novo Nordisk Inc
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
License & disciplinary context - Illinois IDFPR 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~42K Illinois medical licensees in 2023 - they are NOT specific to Ann Altgilbers, APRN. To verify Ann Altgilbers, APRN's current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases
IDFPR publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Brand-heavy
Ann Altgilbers, APRN - brand share 62.0%
Family Nurse Practitioner average
62% brand-name claims vs 29% generic, on 2,405 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
2,405
Total Claims
$2.0M
Total Drug Cost
302
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 5,324
- Total Day Supply
- 155,925
- Brand vs Generic
- 62% brand / 29% generic
- Brand Drug Cost
- $1.9M
- Generic Drug Cost
- $26K
Patient Demographics
- Average Patient Age
- 70.2 years
- Avg HCC Risk Score
- 1.83
- Gender Split
- 54% female / 46% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Ann Altgilbers, APRN prescribes most
Top Medicare Part D drugs by claim count, 2023
- Ozempic
Ozempic
245 claims
- Jardiance
Jardiance
172 claims
- Metformin Hcl
Metformin Hcl
133 claims
- Farxiga
Farxiga
129 claims
- Trulicity
Trulicity
113 claims
- Levothyroxine Sodium 66
Levothyroxine Sodium
66 claims
- Metformin Hcl Er 65
Metformin Hcl Er
65 claims
- Glimepiride 61
Glimepiride
61 claims
| Drug | Claims |
|---|---|
| Ozempic Semaglutide | 245 |
| Jardiance Empagliflozin | 172 |
| Metformin Hcl | 133 |
| Farxiga Dapagliflozin Propanediol | 129 |
| Trulicity Dulaglutide | 113 |
| Levothyroxine Sodium | 66 |
| Metformin Hcl Er Metformin Hcl | 65 |
| Glimepiride | 61 |
| Atorvastatin Calcium | 48 |
| Rosuvastatin Calcium | 47 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Nurse Practitioner Overview
How Ann Altgilbers, APRN fits within the Family Nurse Practitioner landscape nationally.
210,832
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider
Ann Altgilbers, APRN's 2,405 claims are above the specialty average of 1,222.
Nearby Family Nurse Practitioner Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Altgilbers.
Dr. Deborah Aaron
FNP
Chicago, IL
Dr. Lawrence Abah
APN
Aurora, IL
Theresa Abbadusky
Pekin, IL
Dr. Nadia Abbasi-Kling
FNP-BC
Chicago, IL
Dr. Manar Abdalla
FNP
Chicago, IL
Compare Family Nurse Practitioner nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Illinois medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Family Nurse Practitioner peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Illinois
Frequently Asked Questions
What is Ann Altgilbers, APRN's specialty? ▼
Ann Altgilbers, APRN specializes in Family Nurse Practitioner and practices in Maryville, Illinois. Credentials: APRN.
How much does Ann Altgilbers, APRN prescribe under Medicare Part D? ▼
In 2023, Ann Altgilbers, APRN wrote 2,405 Medicare Part D claims totaling $2.0M in drug costs for 302 beneficiaries.
What is Ann Altgilbers, APRN's Medicare quality score? ▼
Ann Altgilbers, APRN has a CMS MIPS Final Score of 74.4/100 (Quality: 70.3, Cost: 56.9). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Ann Altgilbers, APRN located? ▼
Ann Altgilbers, APRN is located at 2133 VADALABENE DR STE 1, Maryville, IL, 62062. Phone: (618) 288-4350.
What is Ann Altgilbers, APRN's NPI number? ▼
Ann Altgilbers, APRN's National Provider Identifier (NPI) is 1447638887, issued on 05/18/2015.
Does Ann Altgilbers, APRN prescribe more brand-name or generic drugs? ▼
Ann Altgilbers, APRN's prescribing is 62% brand-name and 29% generic drugs by claim count, with $1.9M in brand drug costs.
How many Family Nurse Practitioner providers are there in the US? ▼
There are 210,832 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,222 Medicare Part D claims per year.
What drugs does Ann Altgilbers, APRN prescribe most often? ▼
Based on 2023 Medicare Part D data, Ann Altgilbers, APRN's most frequently prescribed drugs include Ozempic, Jardiance, Metformin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ann Altgilbers, APRN accept Medicare? ▼
Ann Altgilbers, APRN appears in CMS Medicare data with 2,405 Part D claims and 302 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ann Altgilbers, APRN's credentials? ▼
Ann Altgilbers, APRN's NPI is 1447638887 with credentials APRN. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Compiled from official public sources by the PlainDoctor editorial team.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.