NPI registry status
Active
2026 NPPES data Nurse Practitioner NPI 1639793995 FNP
Verify on CMS → Desiree Dennull, FNP
Nurse Practitioner in Dexter, Oregon.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 87,700 in 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
3K
Medicare Part D claims · 282 beneficiaries · Nurse Practitioner avg: 1K
Generic prescribing
88%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
100/100
▲ 17 pts above national avg 83.1 · Exceptional
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
Desiree Dennull, FNP reported a CMS MIPS final score of 100/100 - above the 83.1 national average - and filed 3,055 Medicare Part D claims in 2023.
- 100/100
- MIPS score · +17 vs avg
- 3K
- Part D claims, 2023
- 88%
- generic prescribing
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.
Desiree Dennull, FNP's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
100 Top 7% higher than 93% 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 Desiree Dennull, FNP sits
This provider among nurse practitioner peers
Across the 13,476 nurse practitioner providers who report both Medicare Part D prescribing and a MIPS quality score, Desiree Dennull, FNP writes more Part D claims than 90% of them and scores higher on MIPS quality than 93% - placing this provider in the high-volume, high-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 nurse practitioner peer from a representative sample of 60; the gold marker is Desiree Dennull, FNP. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Desiree Dennull, FNP?
High performer (top quartile)Primary specialty
Nurse Practitioner
Medicare Part D claims
3,055 182% vs specialty avg
MIPS final score
100/100 16.9 pts vs avg
Specialty distribution in Oregon
How Nurse Practitioner compares to other specialties among Oregon providers
Medicare quality performance, MIPS
Desiree Dennull, FNP's 2023 MIPS final score plotted against the Nurse Practitioner national average
- MIPS Final Score
- 100/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Nurse Practitioner) - 100/100 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).
Desiree Dennull, FNP appears in the CMS NPPES registry as a Nurse Practitioner provider holding FNP credentials at 38843 DEXTER RD, Dexter, OR, 97431, with a listed phone of (541) 937-2134. NPI 1639793995 was issued on 06/02/2020.
Medicare Part D records for calendar year 2023 show 3,055 prescription claims written by this provider, covering 282 Medicare beneficiaries and totaling roughly $290K in drug spend, split 11% brand-name and 88% generic by claim count, with an opioid prescribing rate of 5.3%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 100/100 for the 2023 performance year (Quality 98.7), compared with the national average of 83.1.
Nurse Practitioner is a high-volume specialty nationwide, with 87,700 enrolled providers across 56 states and an average of 1,084 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 | 1639793995 |
|---|---|
| Specialty | Nurse Practitioner |
| Credentials | FNP |
| Gender | Female |
| NPI Issued | 06/02/2020 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
100
Final Score
Avg: 83.1
98.7188
Quality
100
Promoting Interoperability
Reporting: Group practice
Brand vs generic prescribing mix · Typical
Desiree Dennull, FNP - brand share 11.0%
Nurse Practitioner average
11% brand-name claims vs 88% generic, on 3,055 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.
3,055
Total Claims
$290K
Total Drug Cost
282
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 6,567
- Total Day Supply
- 188,734
- Brand vs Generic
- 11% brand / 88% generic
- Brand Drug Cost
- $234K
- Generic Drug Cost
- $55K
- Opioid Claims
- 162 (5.3% rate)
- Antibiotic Claims
- 39
Patient Demographics
- Average Patient Age
- 73.1 years
- Avg HCC Risk Score
- 1.17
- Gender Split
- 60% female / 40% male
- Age Distribution
- <65: 24, 65-74: 148, 75-84: 82, 85+: 28
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Desiree Dennull, FNP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Levothyroxine Sodium
Levothyroxine Sodium
168 claims
- Lisinopril
Lisinopril
135 claims
- Atorvastatin Calcium
Atorvastatin Calcium
133 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
113 claims
- Escitalopram Oxalate
Escitalopram Oxalate
107 claims
- Amlodipine Besylate
Amlodipine Besylate
102 claims
- Losartan Potassium
Losartan Potassium
91 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
90 claims
| Drug | Claims |
|---|---|
| Levothyroxine Sodium | 168 |
| Lisinopril | 135 |
| Atorvastatin Calcium | 133 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 113 |
| Escitalopram Oxalate | 107 |
| Amlodipine Besylate | 102 |
| Losartan Potassium | 91 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 90 |
| Omeprazole | 74 |
| Hydrochlorothiazide | 70 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nurse Practitioner Overview
How Desiree Dennull, FNP fits within the Nurse Practitioner landscape nationally.
87,700
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,084
Avg Claims per Provider
Desiree Dennull, FNP's 3,055 claims are above the specialty average of 1,084.
Nearby Nurse Practitioner Providers in Oregon
Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as Dennull.
Maryan Abdulkadir
Portland, OR
Dr. Anna Acree
FNP-C
Portland, OR
Dr. Stacey Agee
ANP
Astoria, OR
Dr. Becky Ahmed
NP-C
Hillsboro, OR
Dr. Christopher Aichele
ARNP
Portland, OR
Compare 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 Oregon medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby 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.
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Frequently Asked Questions
What is Desiree Dennull, FNP's specialty? ▼
Desiree Dennull, FNP specializes in Nurse Practitioner and practices in Dexter, Oregon. Credentials: FNP.
How much does Desiree Dennull, FNP prescribe under Medicare Part D? ▼
In 2023, Desiree Dennull, FNP wrote 3,055 Medicare Part D claims totaling $290K in drug costs for 282 beneficiaries.
What is Desiree Dennull, FNP's Medicare quality score? ▼
Desiree Dennull, FNP has a CMS MIPS Final Score of 100/100 (Quality: 98.7). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Desiree Dennull, FNP located? ▼
Desiree Dennull, FNP is located at 38843 DEXTER RD, Dexter, OR, 97431. Phone: (541) 937-2134.
What is Desiree Dennull, FNP's NPI number? ▼
Desiree Dennull, FNP's National Provider Identifier (NPI) is 1639793995, issued on 06/02/2020.
Does Desiree Dennull, FNP prescribe more brand-name or generic drugs? ▼
Desiree Dennull, FNP's prescribing is 11% brand-name and 88% generic drugs by claim count, with $234K in brand drug costs.
Does Desiree Dennull, FNP prescribe opioids? ▼
Yes, Desiree Dennull, FNP had 162 opioid claims in 2023 with an opioid prescribing rate of 5.3%.
How many Nurse Practitioner providers are there in the US? ▼
There are 87,700 Nurse Practitioner providers across 56 states in the US. The average Nurse Practitioner provider writes 1,084 Medicare Part D claims per year.
What drugs does Desiree Dennull, FNP prescribe most often? ▼
Based on 2023 Medicare Part D data, Desiree Dennull, FNP's most frequently prescribed drugs include Levothyroxine Sodium, Lisinopril, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Desiree Dennull, FNP accept Medicare? ▼
Desiree Dennull, FNP appears in CMS Medicare data with 3,055 Part D claims and 282 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Desiree Dennull, FNP's credentials? ▼
Desiree Dennull, FNP's NPI is 1639793995 with credentials FNP. 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.