NPI registry status
Active
2026 NPPES data Emergency Registered Nurse NPI 1609511872 FNP-C
Verify on CMS → Sydney Nielsen, FNP-C
Emergency Registered Nurse in Show Low, Arizona.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 4,350 in Emergency 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
471
Medicare Part D claims · 339 beneficiaries · Emergency Registered Nurse avg: 710
Generic prescribing
90%
generic claims · 3% 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
Sydney Nielsen, FNP-C filed 471 Medicare Part D claims in 2023 as a Emergency Registered Nurse in Show Low, Arizona, prescribing 90% generic.
- 471
- Part D claims, 2023
- 90%
- 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.
Sydney Nielsen, FNP-C's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
471 Top 38% higher than 62% 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 Sydney Nielsen, FNP-C?
Quality data not reportedPrimary specialty
Emergency Registered Nurse
Medicare Part D claims
471 34% vs specialty avg
Specialty distribution in Arizona
How Emergency Registered Nurse compares to other specialties among Arizona 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 Emergency Registered Nurse. 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).
Sydney Nielsen, FNP-C appears in the CMS NPPES registry as an Emergency Registered Nurse provider holding FNP-C credentials at 4951 S WHITE MOUNTAIN RD, Show Low, AZ, 85901, with a listed phone of (928) 537-4375. NPI 1609511872 was issued on 05/03/2022.
Medicare Part D records for calendar year 2023 show 471 prescription claims written by this provider, covering 339 Medicare beneficiaries and totaling roughly $7K in drug spend, split 3% brand-name and 90% generic by claim count.
Emergency Registered Nurse is a narrow specialty nationwide, with 4,350 enrolled providers across 54 states and an average of 710 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 | 1609511872 |
|---|---|
| Specialty | Emergency Registered Nurse |
| Credentials | FNP-C |
| Gender | Female |
| NPI Issued | 05/03/2022 |
Hospital and facility affiliations
Facilities where Sydney Nielsen, FNP-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.
Summit Healthcare Medical Associates
Show Low, AZ
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Generic-heavy
Sydney Nielsen, FNP-C - brand share 3.0%
Emergency Registered Nurse average
3% brand-name claims vs 90% generic, on 471 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.
471
Total Claims
$7K
Total Drug Cost
339
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 488
- Total Day Supply
- 6,479
- Brand vs Generic
- 3% brand / 90% generic
- Brand Drug Cost
- $2K
- Generic Drug Cost
- $4K
- Antibiotic Claims
- 179
Patient Demographics
- Average Patient Age
- 71.4 years
- Avg HCC Risk Score
- 1.14
- Gender Split
- 59% female / 41% male
- Age Distribution
- <65: 45, 65-74: 171, 75-84: 107, 85+: 16
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Sydney Nielsen, FNP-C prescribes most
Top Medicare Part D drugs by claim count, 2023
- Amoxicillin-Clavul…
Amoxicillin-Clavulanate Potass
47 claims
- Prednisone
Prednisone
41 claims
- Fluticasone Propio…
Fluticasone Propionate
38 claims
- Sulfamethoxazole-T…
Sulfamethoxazole-Trimethoprim
34 claims
- Azithromycin
Azithromycin
33 claims
- Cephalexin
Cephalexin
25 claims
- Albuterol Sulfate … 18
Albuterol Sulfate Hfa
18 claims
- Lagevrio (Eua) 18
Lagevrio (Eua)
18 claims
| Drug | Claims |
|---|---|
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 47 |
| Prednisone | 41 |
| Fluticasone Propionate | 38 |
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 34 |
| Azithromycin | 33 |
| Cephalexin | 25 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 18 |
| Lagevrio (Eua) Molnupiravir | 18 |
| Triamcinolone Acetonide | 18 |
| Cefdinir | 14 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Emergency Registered Nurse Overview
How Sydney Nielsen, FNP-C fits within the Emergency Registered Nurse landscape nationally.
4,350
Emergency Registered Nurse Providers in US
54
States with Emergency Registered Nurse
710
Avg Claims per Provider
Sydney Nielsen, FNP-C's 471 claims are below the specialty average of 710.
Nearby Emergency Registered Nurse Providers in Arizona
Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as Nielsen.
Edgar Acutin
Kayenta, AZ
Dr. Michelle Adams
ARNP
Phoenix, AZ
Dr. Hussein Agting
BSN, RN
Tuba City, AZ
Dr. Dante Agustin
REGISTERED NURSE
Fort Defiance, AZ
Dr. Lauree Andrews
RN
Tucson, AZ
Compare Emergency 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 Arizona medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Emergency 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 Sydney Nielsen, FNP-C's specialty? ▼
Sydney Nielsen, FNP-C specializes in Emergency Registered Nurse and practices in Show Low, Arizona. Credentials: FNP-C.
How much does Sydney Nielsen, FNP-C prescribe under Medicare Part D? ▼
In 2023, Sydney Nielsen, FNP-C wrote 471 Medicare Part D claims totaling $7K in drug costs for 339 beneficiaries.
Where is Sydney Nielsen, FNP-C located? ▼
Sydney Nielsen, FNP-C is located at 4951 S WHITE MOUNTAIN RD, Show Low, AZ, 85901. Phone: (928) 537-4375.
What is Sydney Nielsen, FNP-C's NPI number? ▼
Sydney Nielsen, FNP-C's National Provider Identifier (NPI) is 1609511872, issued on 05/03/2022.
Does Sydney Nielsen, FNP-C prescribe more brand-name or generic drugs? ▼
Sydney Nielsen, FNP-C's prescribing is 3% brand-name and 90% generic drugs by claim count, with $2K in brand drug costs.
How many Emergency Registered Nurse providers are there in the US? ▼
There are 4,350 Emergency Registered Nurse providers across 54 states in the US. The average Emergency Registered Nurse provider writes 710 Medicare Part D claims per year.
What drugs does Sydney Nielsen, FNP-C prescribe most often? ▼
Based on 2023 Medicare Part D data, Sydney Nielsen, FNP-C's most frequently prescribed drugs include Amoxicillin-Clavulanate Potass, Prednisone, Fluticasone Propionate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Sydney Nielsen, FNP-C accept Medicare? ▼
Sydney Nielsen, FNP-C appears in CMS Medicare data with 471 Part D claims and 339 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sydney Nielsen, FNP-C's credentials? ▼
Sydney Nielsen, FNP-C's NPI is 1609511872 with credentials FNP-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.
- 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.