NPI registry status
Active
2026 NPPES data Family Nurse Practitioner NPI 1154786937 FNP-BC
Verify on CMS → Molly Oosthuysen, FNP-BC
Family Nurse Practitioner in Maryville, Tennessee.
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
192
Medicare Part D claims · 39 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
74%
generic claims · 26% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
94.1/100
▲ 11 pts above national avg 83.5 · Exceptional
Industry payments
$1.1K
57 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Molly Oosthuysen, FNP-BC reported a CMS MIPS final score of 94.1/100 - above the 83.5 national average - and filed 192 Medicare Part D claims in 2023.
- 94.1/100
- MIPS score · +11 vs avg
- 192
- Part D claims, 2023
- 74%
- generic prescribing
- $1.1K
- 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.
CMS NPPES provider registry desk
NPI 1154786937 · Family Nurse Practitioner
NPI-10 · ENUM-MID · TAX-MEGA · MIPS-ELITE · RX-LIGHT · BOOK-MID · PHOTO-FINISH
- NPI-10 1154786937
- ENUM-MID 2015
- TAX-MEGA 211K Family Nurse
- MIPS-ELITE 94.1/100
- RX-LIGHT 192
- BOOK-MID 7,834 in Tennessee
- PHOTO-FINISH Michelle Angus · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Oosthuysen · thi…
Oosthuysen · this provider
94.1 MIPS pts
- Michelle Beale ·…
Michelle Beale
94.1 MIPS pts
- Michelle Angus ·…
Michelle Angus
94.1 MIPS pts
- Nicole Arrington…
Nicole Arrington
94.1 MIPS pts
- Deborah Barkley …
Deborah Barkley
94.1 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Molly Oosthuysen, FNP-BC's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
94 ≥ 73rd percentile 73% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Molly Oosthuysen, FNP-BC sits
This provider among family nurse practitioner peers
Across the 26,556 family nurse practitioner providers who report both Medicare Part D prescribing and a MIPS quality score, Molly Oosthuysen, FNP-BC writes more Part D claims than 33% of them and scores higher on MIPS quality than 74% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one family nurse practitioner peer from a representative sample of 60; the gold marker is Molly Oosthuysen, FNP-BC. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Molly Oosthuysen, FNP-BC?
High performer (top quartile)Primary specialty
Family Nurse Practitioner
Medicare Part D claims
192 84% vs specialty avg
MIPS final score
94.1/100 10.6 pts vs avg
Specialty distribution in Tennessee
How Family Nurse Practitioner compares to other specialties among Tennessee providers
Medicare quality performance, MIPS
Molly Oosthuysen, FNP-BC's 2023 MIPS final score plotted against the Family Nurse Practitioner national average
- MIPS Final Score
- 94.1/100
- vs 83.5 national avg · 2023 performance year
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 | 1154786937 |
|---|---|
| Specialty | Family Nurse Practitioner |
| Credentials | FNP-BC |
| Gender | Female |
| NPI Issued | 12/22/2015 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
94.0743
Final Score
Measured-score avg: 83.5
86.4483
Quality
94
Promoting Interoperability
Reporting: Alternative Payment Model
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 Molly Oosthuysen, FNP-BC. Source: openpaymentsdata.cms.gov.
Total received
$1.1K
Largest payer
Regeneron Healthcare Solutions, 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.
Brand vs generic prescribing mix · Above average
Molly Oosthuysen, FNP-BC - brand share 26.0%
Family Nurse Practitioner average
26% brand-name claims vs 74% generic, on 192 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.
192
Total Claims
$84K
Total Drug Cost
39
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 229
- Total Day Supply
- 6,386
- Brand vs Generic
- 26% brand / 74% generic
- Brand Drug Cost
- $79K
- Generic Drug Cost
- $5K
Patient Demographics
- Average Patient Age
- 69.5 years
- Avg HCC Risk Score
- 1.15
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Molly Oosthuysen, FNP-BC prescribes most
Top Medicare Part D drugs by claim count, 2023
- Fluticasone Propio…
Fluticasone Propionate
17 claims
- Fluticasone-Salmet…
Fluticasone-Salmeterol
13 claims
- Donepezil Hcl
Donepezil Hcl
12 claims
- Tamoxifen Citrate
Tamoxifen Citrate
12 claims
- Dupixent Syringe
Dupixent Syringe
11 claims
- Mirtazapine
Mirtazapine
11 claims
- Nifedipine Er
Nifedipine Er
11 claims
- Simvastatin
Simvastatin
11 claims
| Drug | Claims |
|---|---|
| Fluticasone Propionate | 17 |
| Fluticasone-Salmeterol Fluticasone Propion/Salmeterol | 13 |
| Donepezil Hcl | 12 |
| Tamoxifen Citrate | 12 |
| Dupixent Syringe Dupilumab | 11 |
| Mirtazapine | 11 |
| Nifedipine Er Nifedipine | 11 |
| Simvastatin | 11 |
* 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 Molly Oosthuysen, 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
Molly Oosthuysen, FNP-BC's 192 claims are below the specialty average of 1,222.
Nationwide Family Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Oosthuysen, both outside Tennessee so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (94.1 here).
Same NPPES enumeration year (2015)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Family Nurse Practitioner Providers in Tennessee
Other clinicians with the same primary specialty enrolled in Tennessee, drawn from the same CMS NPPES roster as Oosthuysen.
One of 7,834 Family Nurse Practitioner providers enrolled in Tennessee, 5 are shown here.
Dr. Benjamin Aaron
FNP-C
Cookeville, TN
Dr. Sandra Aaron
FNP-BC
Ooltewah, TN
Dr. Jessica Abbott
FNP
Nashville, TN
Keshia Abbott
Cookeville, TN
Shelton Abbott
Johnson City, TN
Compare Family Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Molly Oosthuysen, FNP-BC's specialty? ▼
Molly Oosthuysen, FNP-BC specializes in Family Nurse Practitioner and practices in Maryville, Tennessee. Credentials: FNP-BC.
How much does Molly Oosthuysen, FNP-BC prescribe under Medicare Part D? ▼
In 2023, Molly Oosthuysen, FNP-BC wrote 192 Medicare Part D claims totaling $84K in drug costs for 39 beneficiaries.
What is Molly Oosthuysen, FNP-BC's Medicare quality score? ▼
Molly Oosthuysen, FNP-BC has a CMS MIPS Final Score of 94.1/100 (Quality: 86.4). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Molly Oosthuysen, FNP-BC located? ▼
Molly Oosthuysen, FNP-BC is located at 907 E LAMAR ALEXANDER PKWY, Maryville, TN, 37804. Phone: (865) 980-4897.
What is Molly Oosthuysen, FNP-BC's NPI number? ▼
Molly Oosthuysen, FNP-BC's National Provider Identifier (NPI) is 1154786937, issued on 12/22/2015.
Does Molly Oosthuysen, FNP-BC prescribe more brand-name or generic drugs? ▼
Molly Oosthuysen, FNP-BC's prescribing is 26% brand-name and 74% generic drugs by claim count, with $79K 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 Molly Oosthuysen, FNP-BC prescribe most often? ▼
Based on 2023 Medicare Part D data, Molly Oosthuysen, FNP-BC's most frequently prescribed drugs include Fluticasone Propionate, Fluticasone-Salmeterol, Donepezil Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Molly Oosthuysen, FNP-BC accept Medicare? ▼
Molly Oosthuysen, FNP-BC appears in CMS Medicare data with 192 Part D claims and 39 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Molly Oosthuysen, FNP-BC's credentials? ▼
Molly Oosthuysen, FNP-BC's NPI is 1154786937 with credentials 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.
- 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
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.