NPI registry status
Active
2026 NPPES data Family Nurse Practitioner NPI 1942619762 APN, FNP-BC
Verify on CMS → Sarah Maas, APN, FNP-BC
Family Nurse Practitioner in Rockford, 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
6K
Medicare Part D claims · 198 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Sarah Maas, APN, FNP-BC filed 6,013 Medicare Part D claims in 2023 as a Family Nurse Practitioner in Rockford, Illinois, prescribing 92% generic.
- 6K
- Part D claims, 2023
- 92%
- generic prescribing
- ≥95th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Sarah Maas, APN, FNP-BC
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1942619762), first enumerated 08/06/2014.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 6,013 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Hospital affiliations
2 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- State context
State board disciplinary context
Illinois statewide board action statistics are published annually — these figures describe aggregate state activity, not Sarah Maas, APN, FNP-BC's individual license status. Verify directly with the state medical board.
Source: IDFPR annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1942619762 · Family Nurse Practitioner
NPI-10 · ENUM-MID · TAX-MEGA · RX-MID · BOOK-MID · PHOTO-ENUM
- NPI-10 1942619762
- ENUM-MID 2014
- TAX-MEGA 211K Family Nurse
- RX-MID 6,013
- BOOK-MID 7,064 in Illinois
- PHOTO-ENUM Kristin Kolat · 2014
Sarah Maas, APN, FNP-BC's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
6,013 ≥ 95th percentile 95% of 1,370,886 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. 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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2023
What does the federal data show about Sarah Maas, APN, FNP-BC?
Quality data not reportedPrimary specialty
Family Nurse Practitioner
Medicare Part D claims
6,013 392% vs specialty avg
Specialty distribution in Illinois
How Family Nurse Practitioner compares to other specialties among Illinois providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Family Nurse Practitioner. Verify directly:
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).
Practice Address
Provider Details
| NPI | 1942619762 |
|---|---|
| Specialty | Family Nurse Practitioner |
| Credentials | APN, FNP-BC |
| Gender | Female |
| NPI Issued | 08/06/2014 |
Hospital and facility affiliations
Facilities where Sarah Maas, APN, FNP-BC 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.
Community Home Physicians LLC
Oakbrook Terrace, IL
Select Rehabilitation, LLC
Glenview, 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).
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 Sarah Maas, APN, FNP-BC. To verify Sarah Maas, APN, FNP-BC'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 · Generic-heavy
Sarah Maas, APN, FNP-BC - brand share 8.0%
Family Nurse Practitioner average
8% brand-name claims vs 92% generic, on 6,013 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.
6,013
Total Claims
$271K
Total Drug Cost
198
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 6,332
- Total Day Supply
- 142,866
- Brand vs Generic
- 8% brand / 92% generic
- Brand Drug Cost
- $159K
- Generic Drug Cost
- $110K
- Opioid Claims
- 100 (1.7% rate)
- Antibiotic Claims
- 121
Patient Demographics
- Average Patient Age
- 82.0 years
- Avg HCC Risk Score
- 1.93
- Gender Split
- 67% female / 33% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Sarah Maas, APN, FNP-BC prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
317 claims
- Amlodipine Besylate
Amlodipine Besylate
291 claims
- Levothyroxine Sodium
Levothyroxine Sodium
199 claims
- Potassium Chloride
Potassium Chloride
192 claims
- Gabapentin
Gabapentin
177 claims
- Donepezil Hcl
Donepezil Hcl
161 claims
- Metoprolol Succinate
Metoprolol Succinate
161 claims
- Lisinopril
Lisinopril
154 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 317 |
| Amlodipine Besylate | 291 |
| Levothyroxine Sodium | 199 |
| Potassium Chloride | 192 |
| Gabapentin | 177 |
| Donepezil Hcl | 161 |
| Metoprolol Succinate | 161 |
| Lisinopril | 154 |
| Omeprazole | 154 |
| Warfarin Sodium | 138 |
* 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 Sarah Maas, APN, FNP-BC 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
Sarah Maas, APN, FNP-BC's 6,013 claims are above the specialty average of 1,222.
Nationwide Family Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Maas, both outside Illinois so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2014)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
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 Maas.
One of 7,064 Family Nurse Practitioner providers enrolled in Illinois, 5 are shown here.
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 →
Frequently Asked Questions
What is Sarah Maas, APN, FNP-BC's specialty? ▼
Sarah Maas, APN, FNP-BC specializes in Family Nurse Practitioner and practices in Rockford, Illinois. Credentials: APN, FNP-BC.
How much does Sarah Maas, APN, FNP-BC prescribe under Medicare Part D? ▼
In 2023, Sarah Maas, APN, FNP-BC wrote 6,013 Medicare Part D claims totaling $271K in drug costs for 198 beneficiaries.
Where is Sarah Maas, APN, FNP-BC located? ▼
Sarah Maas, APN, FNP-BC is located at 4215 NEWBURG RD, Rockford, IL, 61108. Phone: (815) 988-8500.
What is Sarah Maas, APN, FNP-BC's NPI number? ▼
Sarah Maas, APN, FNP-BC's National Provider Identifier (NPI) is 1942619762, issued on 08/06/2014.
Does Sarah Maas, APN, FNP-BC prescribe more brand-name or generic drugs? ▼
Sarah Maas, APN, FNP-BC's prescribing is 8% brand-name and 92% generic drugs by claim count, with $159K in brand drug costs.
Does Sarah Maas, APN, FNP-BC prescribe opioids? ▼
Yes, Sarah Maas, APN, FNP-BC had 100 opioid claims in 2023 with an opioid prescribing rate of 1.7%.
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 Sarah Maas, APN, FNP-BC prescribe most often? ▼
Based on 2023 Medicare Part D data, Sarah Maas, APN, FNP-BC's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Sarah Maas, APN, FNP-BC accept Medicare? ▼
Sarah Maas, APN, FNP-BC appears in CMS Medicare data with 6,013 Part D claims and 198 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sarah Maas, APN, FNP-BC's credentials? ▼
Sarah Maas, APN, FNP-BC's NPI is 1942619762 with credentials APN, FNP-BC. 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.
- 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
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.