NPI registry status
Active
2026 NPPES data Registered Nurse NPI 1528729563 AGPCNP-C
Verify on CMS → Nicole Grehn, AGPCNP-C
Registered Nurse in Brightwaters, New York.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 177,204 in Registered Nurse, 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
98
Medicare Part D claims · 39 beneficiaries · Registered Nurse avg: 1K
MIPS score
5.7/100
▼ 77 pts below national avg 83.1 · Penalty band
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Nicole Grehn, AGPCNP-C reported a CMS MIPS final score of 5.7/100 - below the 83.1 national average - and filed 98 Medicare Part D claims in 2023.
- 5.7/100
- MIPS score · -77 vs avg
- 98
- Part D claims, 2023
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.
Nicole Grehn, AGPCNP-C's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
6 2nd percentile higher than 2% 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 Nicole Grehn, AGPCNP-C sits
This provider among registered nurse peers
Across the 3,327 registered nurse providers who report both Medicare Part D prescribing and a MIPS quality score, Nicole Grehn, AGPCNP-C writes more Part D claims than 24% of them and scores higher on MIPS quality than 0% - placing this provider in the lower-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 registered nurse peer from a representative sample of 60; the gold marker is Nicole Grehn, AGPCNP-C. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Nicole Grehn, AGPCNP-C?
Below national averagePrimary specialty
Registered Nurse
Medicare Part D claims
98 90% vs specialty avg
MIPS final score
5.7/100 77.4 pts vs avg
Specialty distribution in New York
How Registered Nurse compares to other specialties among New York providers
Medicare quality performance, MIPS
Nicole Grehn, AGPCNP-C's 2023 MIPS final score plotted against the Registered Nurse national average
- MIPS Final Score
- 5.7/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Registered Nurse) - 5.7/100 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).
Nicole Grehn, AGPCNP-C appears in the CMS NPPES registry as a Registered Nurse provider holding AGPCNP-C credentials at 234 ORINOCO DR, Brightwaters, NY, 11718, with a listed phone of (631) 300-0797. NPI 1528729563 was issued on 01/03/2022.
Medicare Part D records for calendar year 2023 show 98 prescription claims written by this provider, covering 39 Medicare beneficiaries and totaling roughly $2K in drug spend, with an opioid prescribing rate of 11.2%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 5.7/100 for the 2023 performance year (Quality 0, Cost 18.9), compared with the national average of 83.1.
Registered Nurse is a high-volume specialty nationwide, with 177,204 enrolled providers across 56 states and an average of 1,000 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 | 1528729563 |
|---|---|
| Specialty | Registered Nurse |
| Credentials | AGPCNP-C |
| Gender | Female |
| NPI Issued | 01/03/2022 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
5.6571
Final Score
Avg: 83.1
0
Quality
18.857
Cost
Reporting: Individual
Hospital and facility affiliations
Facilities where Nicole Grehn, AGPCNP-C 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.
Physical Medicine And Rehabilitation OF Long Island
Brightwaters, NY
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 - New York NYSBPMC 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 ~100K New York medical licensees in 2023 - they are NOT specific to Nicole Grehn, AGPCNP-C. To verify Nicole Grehn, AGPCNP-C's current license status, search the NYSBPMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
312
Total board actions, New York 2023
Across 302 cases
3.12
Actions per 1,000 licensees
New York statewide rate
probation
Most common action type
89 cases
NYSBPMC 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 New York disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
98
Total Claims
$2K
Total Drug Cost
39
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 105
- Total Day Supply
- 2,532
- Generic Drug Cost
- $2K
- Opioid Claims
- 11 (11.2% rate)
Patient Demographics
- Average Patient Age
- 68.3 years
- Avg HCC Risk Score
- 2.59
- Gender Split
- 49% female / 51% male
- Age Distribution
- <65: 12, 65-74: 15, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Gabapentin | 35 |
| Duloxetine Hcl | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Registered Nurse Overview
How Nicole Grehn, AGPCNP-C fits within the Registered Nurse landscape nationally.
177,204
Registered Nurse Providers in US
56
States with Registered Nurse
1,000
Avg Claims per Provider
Nicole Grehn, AGPCNP-C's 98 claims are below the specialty average of 1,000.
Nearby Registered Nurse Providers in New York
Other clinicians with the same primary specialty enrolled in New York, drawn from the same CMS NPPES roster as Grehn.
Dr. Sharon A'Court-Zingman
R.N.
Bay Shore, NY
Momna Aakel
Brooklyn, NY
Dr. Hannah Aakjar
RN
Beacon, NY
Dr. Rivqa Rhonda Aaronson
RN
Brooklyn, NY
Stephanie Aaronson
Spring Valley, NY
Compare Registered Nurse 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 New York medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Registered Nurse 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 Nicole Grehn, AGPCNP-C's specialty? ▼
Nicole Grehn, AGPCNP-C specializes in Registered Nurse and practices in Brightwaters, New York. Credentials: AGPCNP-C.
How much does Nicole Grehn, AGPCNP-C prescribe under Medicare Part D? ▼
In 2023, Nicole Grehn, AGPCNP-C wrote 98 Medicare Part D claims totaling $2K in drug costs for 39 beneficiaries.
What is Nicole Grehn, AGPCNP-C's Medicare quality score? ▼
Nicole Grehn, AGPCNP-C has a CMS MIPS Final Score of 5.7/100 (Quality: 0, Cost: 18.9). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Nicole Grehn, AGPCNP-C located? ▼
Nicole Grehn, AGPCNP-C is located at 234 ORINOCO DR, Brightwaters, NY, 11718. Phone: (631) 300-0797.
What is Nicole Grehn, AGPCNP-C's NPI number? ▼
Nicole Grehn, AGPCNP-C's National Provider Identifier (NPI) is 1528729563, issued on 01/03/2022.
Does Nicole Grehn, AGPCNP-C prescribe opioids? ▼
Yes, Nicole Grehn, AGPCNP-C had 11 opioid claims in 2023 with an opioid prescribing rate of 11.2%.
How many Registered Nurse providers are there in the US? ▼
There are 177,204 Registered Nurse providers across 56 states in the US. The average Registered Nurse provider writes 1,000 Medicare Part D claims per year.
What drugs does Nicole Grehn, AGPCNP-C prescribe most often? ▼
Based on 2023 Medicare Part D data, Nicole Grehn, AGPCNP-C's most frequently prescribed drugs include Gabapentin, Duloxetine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Nicole Grehn, AGPCNP-C accept Medicare? ▼
Nicole Grehn, AGPCNP-C appears in CMS Medicare data with 98 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 Nicole Grehn, AGPCNP-C's credentials? ▼
Nicole Grehn, AGPCNP-C's NPI is 1528729563 with credentials AGPCNP-C. 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.