NPI registry status
Active
2026 NPPES data Family Nurse Practitioner NPI 1609313006 FNP
Verify on CMS → Holly Greiner, FNP
Family Nurse Practitioner in Dansville, 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 216,959 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
501
Medicare Part D claims · 357 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
96%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
84.5/100
▲ 1 pts above national avg 83.5 · Above neutral
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Holly Greiner, FNP reported a CMS MIPS final score of 84.5/100 - above the 83.5 national average - and filed 501 Medicare Part D claims in 2024.
- 84.5/100
- MIPS score · +1 vs avg
- 501
- Part D claims, 2024
- 96%
- generic prescribing
- ≥42nd
- pct among measured MIPS (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 Holly Greiner, FNP
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1609313006), first enumerated 01/23/2017.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 501 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 84.5/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- State context
State board disciplinary context
New York statewide board action statistics are published annually — these figures describe aggregate state activity, not Holly Greiner, FNP's individual license status. Verify directly with the state medical board.
Source: NYSBPMC 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 1609313006 · Family Nurse Practitioner
NPI-10 · ENUM-RECENT · TAX-MEGA · MIPS-INLINE · RX-LIGHT · BOOK-MID · PHOTO-FINISH
- NPI-10 1609313006
- ENUM-RECENT 2017
- TAX-MEGA 217K Family Nurse
- MIPS-INLINE 84.5/100
- RX-LIGHT 501
- BOOK-MID 13,030 in New York
- PHOTO-FINISH Jennifer Adams · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Greiner · this p…
Greiner · this provider
84.5 MIPS pts
- Kristi Dees Coll…
Kristi Dees Collins
84.5 MIPS pts
- Jennifer Adams ·…
Jennifer Adams
84.5 MIPS pts
- Olivia Aikman · …
Olivia Aikman
84.5 MIPS pts
- Vanessa Copper ·…
Vanessa Copper
84.5 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Holly Greiner, FNP'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.
85 ≥ 42nd percentile 42% 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 Holly Greiner, FNP 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, Holly Greiner, FNP writes more Part D claims than 55% of them and scores higher on MIPS quality than 43% - placing this provider in the high-volume, lower-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 Holly Greiner, FNP. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Holly Greiner, FNP?
Near national averagePrimary specialty
Family Nurse Practitioner
Medicare Part D claims
501 62% vs specialty avg
MIPS final score
84.5/100 1 pts vs avg
Specialty distribution in New York
How Family Nurse Practitioner compares to other specialties among New York providers
Medicare quality performance, MIPS
Holly Greiner, FNP's 2023 MIPS final score plotted against the Family Nurse Practitioner national average
- MIPS Final Score
- 84.5/100
- 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 | 1609313006 |
|---|---|
| Specialty | Family Nurse Practitioner |
| Credentials | FNP |
| Gender | Female |
| NPI Issued | 01/23/2017 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
84.4995
Final Score
Measured-score avg: 83.5
72.1003
Quality
63.693
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Holly Greiner, FNP 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.
The Frederick Ferris Thompson Hospital
Farmington, 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 Holly Greiner, FNP. To verify Holly Greiner, FNP'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.
Brand vs generic prescribing mix · Generic-heavy
Holly Greiner, FNP - brand share 4.0%
Family Nurse Practitioner average
4% brand-name claims vs 96% generic, on 501 2024 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 2024.
501
Total Claims
$3K
Total Drug Cost
357
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 504.667
- Total Day Supply
- 4,773
- Brand vs Generic
- 4% brand / 96% generic
- Brand Drug Cost
- $452
- Generic Drug Cost
- $3K
- Antibiotic Claims
- 230
Patient Demographics
- Average Patient Age
- 70.8 years
- Avg HCC Risk Score
- 0.89
- Gender Split
- 65% female / 35% male
- Age Distribution
- <65: 55, 65-74: 162, 75-84: 105, 85+: 35
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Holly Greiner, FNP prescribes most
Top Medicare Part D drugs by claim count, 2024
- Prednisone
Prednisone
132 claims
- Doxycycline Hyclate
Doxycycline Hyclate
68 claims
- Amoxicillin 41
Amoxicillin
41 claims
- Famotidine 40
Famotidine
40 claims
- Amoxicillin-Clavul… 25
Amoxicillin-Clavulanate Potass
25 claims
- Sulfamethoxazole-T… 24
Sulfamethoxazole-Trimethoprim
24 claims
- Albuterol Sulfate … 23
Albuterol Sulfate Hfa
23 claims
- Cephalexin 23
Cephalexin
23 claims
| Drug | Claims |
|---|---|
| Prednisone | 132 |
| Doxycycline Hyclate | 68 |
| Amoxicillin | 41 |
| Famotidine | 40 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 25 |
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 24 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 23 |
| Cephalexin | 23 |
| Nitrofurantoin Mono-Macro Nitrofurantoin Monohyd/M-Cryst | 18 |
| Azithromycin | 16 |
* 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 Holly Greiner, FNP fits within the Family Nurse Practitioner landscape nationally.
216,959
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,302
Avg Claims per Provider
Holly Greiner, FNP's 501 claims are below the specialty average of 1,302.
Nationwide Family Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Greiner, both outside New York so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (84.5 here).
Same NPPES enumeration year (2017)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Family Nurse Practitioner Providers in New York
Other clinicians with the same primary specialty enrolled in New York, drawn from the same CMS NPPES roster as Greiner.
One of 13,030 Family Nurse Practitioner providers enrolled in New York, 5 are shown here.
Carolyn A'Hearn
NP
Syracuse, NY
Lindsey Aanonsen
FNP
Staten Island, NY
Abigail Aaron
FNP
New York, NY
Memoudou Abalola
NP
Bronx, NY
Jennifer Abate
FNP-BC
New York, NY
Compare Family Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Holly Greiner, FNP's specialty? ▼
Holly Greiner, FNP specializes in Family Nurse Practitioner and practices in Dansville, New York. Credentials: FNP.
How much does Holly Greiner, FNP prescribe under Medicare Part D? ▼
In 2024, Holly Greiner, FNP wrote 501 Medicare Part D claims totaling $3K in drug costs for 357 beneficiaries.
What is Holly Greiner, FNP's Medicare quality score? ▼
Holly Greiner, FNP has a CMS MIPS Final Score of 84.5/100 (Quality: 72.1, Cost: 63.7). 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 Holly Greiner, FNP located? ▼
Holly Greiner, FNP is located at 111 CLARA BARTON ST, Dansville, NY, 14437. Phone: (585) 335-6001.
What is Holly Greiner, FNP's NPI number? ▼
Holly Greiner, FNP's National Provider Identifier (NPI) is 1609313006, issued on 01/23/2017.
Does Holly Greiner, FNP prescribe more brand-name or generic drugs? ▼
Holly Greiner, FNP's prescribing is 4% brand-name and 96% generic drugs by claim count, with $452 in brand drug costs.
How many Family Nurse Practitioner providers are there in the US? ▼
There are 216,959 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,302 Medicare Part D claims per year.
What drugs does Holly Greiner, FNP prescribe most often? ▼
Based on 2024 Medicare Part D data, Holly Greiner, FNP's most frequently prescribed drugs include Prednisone, Doxycycline Hyclate, Amoxicillin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Holly Greiner, FNP accept Medicare? ▼
Holly Greiner, FNP appears in CMS Medicare data with 501 Part D claims and 357 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Holly Greiner, FNP's credentials? ▼
Holly Greiner, FNP's NPI is 1609313006 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 (2024). 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 August 2026 (NPPES) / 2024 (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 August 2026.