NPI registry status
Active
2026 NPPES data Nurse Practitioner NPI 1528494713 CRNP
Verify on CMS → Natalie Duffy, CRNP
Nurse Practitioner in York, Pennsylvania.
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
18
Medicare Part D claims · Nurse Practitioner avg: 1K
Generic prescribing
0%
generic claims · 72% brand-name · higher generic rates reduce patient out-of-pocket costs
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
Natalie Duffy, CRNP filed 18 Medicare Part D claims in 2023 as a Nurse Practitioner in York, Pennsylvania, prescribing 0% generic.
- 18
- Part D claims, 2023
- 0%
- 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.
Natalie Duffy, CRNP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
18 0th percentile higher than 0% of 1,370,886 prescribers
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.
Source CMS Medicare Part D Prescriber Public Use File · 2023
What does the federal data show about Natalie Duffy, CRNP?
Quality data not reportedPrimary specialty
Nurse Practitioner
Medicare Part D claims
18 98% vs specialty avg
Specialty distribution in Pennsylvania
How Nurse Practitioner compares to other specialties among Pennsylvania 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 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).
Natalie Duffy, CRNP appears in the CMS NPPES registry as a Nurse Practitioner provider holding CRNP credentials at 400 PINE GROVE COMMONS, York, PA, 17403, with a listed phone of (717) 755-2020. NPI 1528494713 was issued on 09/19/2013.
Medicare Part D records for calendar year 2023 show 18 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $13K in drug spend, split 72% brand-name and 0% generic by claim count.
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 | 1528494713 |
|---|---|
| Specialty | Nurse Practitioner |
| Credentials | CRNP |
| Gender | Female |
| NPI Issued | 09/19/2013 |
License & disciplinary context - Pennsylvania PA-BOM 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 ~45K Pennsylvania medical licensees in 2023 - they are NOT specific to Natalie Duffy, CRNP. To verify Natalie Duffy, CRNP's current license status, search the PA-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
133
Total board actions, Pennsylvania 2023
Across 129 cases
2.96
Actions per 1,000 licensees
Pennsylvania statewide rate
probation
Most common action type
48 cases
PA-BOM 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 Pennsylvania disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Brand-heavy
Natalie Duffy, CRNP - brand share 72.0%
Nurse Practitioner average
72% brand-name claims vs 0% generic, on 18 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.
18
Total Claims
$13K
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 18
- Total Day Supply
- 427
- Brand vs Generic
- 72% brand / 0% generic
- Brand Drug Cost
- $13K
Patient Demographics
- Average Patient Age
- 68.6 years
- Avg HCC Risk Score
- 3.22
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Ozempic Semaglutide | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nurse Practitioner Overview
How Natalie Duffy, CRNP 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
Natalie Duffy, CRNP's 18 claims are below the specialty average of 1,084.
Nearby Nurse Practitioner Providers in Pennsylvania
Other clinicians with the same primary specialty enrolled in Pennsylvania, drawn from the same CMS NPPES roster as Duffy.
Dr. Erika Aaron
CRNP
Philadelphia, PA
Dr. Megan Abbott
CRNP
Philadelphia, PA
Lynda Abi-Daher
Bethlehem, PA
Dr. Ann Acevedo
CRNP
Lehighton, PA
Jessica Acevedo
Philadelphia, PA
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 Pennsylvania 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.
Healthcare Guides
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How to Find a Doctor
Step-by-step guide to choosing a provider
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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 Pennsylvania
Frequently Asked Questions
What is Natalie Duffy, CRNP's specialty? ▼
Natalie Duffy, CRNP specializes in Nurse Practitioner and practices in York, Pennsylvania. Credentials: CRNP.
How much does Natalie Duffy, CRNP prescribe under Medicare Part D? ▼
In 2023, Natalie Duffy, CRNP wrote 18 Medicare Part D claims totaling $13K in drug costs for N/A beneficiaries.
Where is Natalie Duffy, CRNP located? ▼
Natalie Duffy, CRNP is located at 400 PINE GROVE COMMONS, York, PA, 17403. Phone: (717) 755-2020.
What is Natalie Duffy, CRNP's NPI number? ▼
Natalie Duffy, CRNP's National Provider Identifier (NPI) is 1528494713, issued on 09/19/2013.
Does Natalie Duffy, CRNP prescribe more brand-name or generic drugs? ▼
Natalie Duffy, CRNP's prescribing is 72% brand-name and 0% generic drugs by claim count, with $13K in brand drug costs.
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 Natalie Duffy, CRNP prescribe most often? ▼
Based on 2023 Medicare Part D data, Natalie Duffy, CRNP's most frequently prescribed drugs include Ozempic. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Natalie Duffy, CRNP accept Medicare? ▼
Natalie Duffy, CRNP appears in CMS Medicare data with 18 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Natalie Duffy, CRNP's credentials? ▼
Natalie Duffy, CRNP's NPI is 1528494713 with credentials CRNP. 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
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.