NPI registry status
Active
2026 NPPES data Gerontology Nurse Practitioner NPI 1851883516 NP
Verify on CMS → Sarah Arnkoff, NP
Gerontology Nurse Practitioner in West Bloomfield, Michigan.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 9,706 in Gerontology 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
641
Medicare Part D claims · 333 beneficiaries · Gerontology Nurse Practitioner avg: 1K
MIPS score
97.5/100
▲ 14 pts above national avg 83.1 · Exceptional
Industry payments
$5.0K
103 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Sarah Arnkoff, NP reported a CMS MIPS final score of 97.5/100 - above the 83.1 national average - and filed 641 Medicare Part D claims in 2023.
- 97.5/100
- MIPS score · +14 vs avg
- 641
- Part D claims, 2023
- $5.0K
- 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.
Sarah Arnkoff, NP's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
98 Top 15% higher than 85% 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 Sarah Arnkoff, NP sits
This provider among gerontology nurse practitioner peers
Across the 1,301 gerontology nurse practitioner providers who report both Medicare Part D prescribing and a MIPS quality score, Sarah Arnkoff, NP writes more Part D claims than 58% of them and scores higher on MIPS quality than 86% - 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 gerontology nurse practitioner peer from a representative sample of 60; the gold marker is Sarah Arnkoff, NP. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Sarah Arnkoff, NP?
High performer (top quartile)Primary specialty
Gerontology Nurse Practitioner
Medicare Part D claims
641 50% vs specialty avg
MIPS final score
97.5/100 14.4 pts vs avg
Specialty distribution in Michigan
How Gerontology Nurse Practitioner compares to other specialties among Michigan providers
Medicare quality performance, MIPS
Sarah Arnkoff, NP's 2023 MIPS final score plotted against the Gerontology Nurse Practitioner national average
- MIPS Final Score
- 97.5/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Gerontology Nurse Practitioner) - 97.5/100 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).
Sarah Arnkoff, NP appears in the CMS NPPES registry as a Gerontology Nurse Practitioner provider holding NP credentials at 6900 ORCHARD LAKE RD STE 300, West Bloomfield, MI, 48322, with a listed phone of (248) 593-9036. NPI 1851883516 was issued on 05/30/2018.
Medicare Part D records for calendar year 2023 show 641 prescription claims written by this provider, covering 333 Medicare beneficiaries and totaling roughly $109K in drug spend. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 97.5/100 for the 2023 performance year, compared with the national average of 83.1.
Gerontology Nurse Practitioner is a mid-sized specialty nationwide, with 9,706 enrolled providers across 54 states and an average of 1,283 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 | 1851883516 |
|---|---|
| Specialty | Gerontology Nurse Practitioner |
| Credentials | NP |
| Gender | Female |
| NPI Issued | 05/30/2018 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
97.45
Final Score
Avg: 83.1
97
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Sarah Arnkoff, NP 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.
Michigan Institute OF Urology PC
Troy, MI
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Sarah Arnkoff, NP. Source: openpaymentsdata.cms.gov.
Total received
$5.0K
Largest payer
Medtronic, 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.
License & disciplinary context - Michigan MI-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 ~41K Michigan medical licensees in 2023 - they are NOT specific to Sarah Arnkoff, NP. To verify Sarah Arnkoff, NP's current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases
MI-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 Michigan 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.
641
Total Claims
$109K
Total Drug Cost
333
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 965
- Total Day Supply
- 23,357
- Generic Drug Cost
- $18K
- Antibiotic Claims
- 257
Patient Demographics
- Average Patient Age
- 76.5 years
- Avg HCC Risk Score
- 1.50
- Gender Split
- 47% female / 53% male
- Age Distribution
- <65: 17, 65-74: 115, 75-84: 139, 85+: 62
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Sarah Arnkoff, NP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Myrbetriq
Myrbetriq
84 claims
- Nitrofurantoin Mon…
Nitrofurantoin Mono-Macro
67 claims
- Tamsulosin Hcl
Tamsulosin Hcl
49 claims
- Cephalexin
Cephalexin
38 claims
- Sulfamethoxazole-T…
Sulfamethoxazole-Trimethoprim
37 claims
- Gemtesa 33
Gemtesa
33 claims
- Testosterone Cypio… 31
Testosterone Cypionate
31 claims
- Nitrofurantoin 29
Nitrofurantoin
29 claims
| Drug | Claims |
|---|---|
| Myrbetriq Mirabegron | 84 |
| Nitrofurantoin Mono-Macro Nitrofurantoin Monohyd/M-Cryst | 67 |
| Tamsulosin Hcl | 49 |
| Cephalexin | 38 |
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 37 |
| Gemtesa Vibegron | 33 |
| Testosterone Cypionate | 31 |
| Nitrofurantoin Nitrofurantoin Macrocrystal | 29 |
| Finasteride | 28 |
| Ciprofloxacin Hcl | 26 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Gerontology Nurse Practitioner Overview
How Sarah Arnkoff, NP fits within the Gerontology Nurse Practitioner landscape nationally.
9,706
Gerontology Nurse Practitioner Providers in US
54
States with Gerontology Nurse Practitioner
1,283
Avg Claims per Provider
Sarah Arnkoff, NP's 641 claims are below the specialty average of 1,283.
Nearby Gerontology Nurse Practitioner Providers in Michigan
Other clinicians with the same primary specialty enrolled in Michigan, drawn from the same CMS NPPES roster as Arnkoff.
Mariam Abbas
Southgate, MI
Adeola Adewusi
Detroit, MI
Kelechi Akubukwe
Novi, MI
Katie Alfredson
Muskegon, MI
Dr. Abizer Ali
PT, APRN, AGNP-C
Farmington, MI
Compare Gerontology 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 Michigan medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Gerontology 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 Sarah Arnkoff, NP's specialty? ▼
Sarah Arnkoff, NP specializes in Gerontology Nurse Practitioner and practices in West Bloomfield, Michigan. Credentials: NP.
How much does Sarah Arnkoff, NP prescribe under Medicare Part D? ▼
In 2023, Sarah Arnkoff, NP wrote 641 Medicare Part D claims totaling $109K in drug costs for 333 beneficiaries.
What is Sarah Arnkoff, NP's Medicare quality score? ▼
Sarah Arnkoff, NP has a CMS MIPS Final Score of 97.5/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Sarah Arnkoff, NP located? ▼
Sarah Arnkoff, NP is located at 6900 ORCHARD LAKE RD STE 300, West Bloomfield, MI, 48322. Phone: (248) 593-9036.
What is Sarah Arnkoff, NP's NPI number? ▼
Sarah Arnkoff, NP's National Provider Identifier (NPI) is 1851883516, issued on 05/30/2018.
How many Gerontology Nurse Practitioner providers are there in the US? ▼
There are 9,706 Gerontology Nurse Practitioner providers across 54 states in the US. The average Gerontology Nurse Practitioner provider writes 1,283 Medicare Part D claims per year.
What drugs does Sarah Arnkoff, NP prescribe most often? ▼
Based on 2023 Medicare Part D data, Sarah Arnkoff, NP's most frequently prescribed drugs include Myrbetriq, Nitrofurantoin Mono-Macro, Tamsulosin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Sarah Arnkoff, NP accept Medicare? ▼
Sarah Arnkoff, NP appears in CMS Medicare data with 641 Part D claims and 333 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sarah Arnkoff, NP's credentials? ▼
Sarah Arnkoff, NP's NPI is 1851883516 with credentials NP. 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.