NPI registry status
Active
2026 NPPES data Addiction (Substance Use Disorder) Registered Nurse NPI 1184258014
Verify on CMS → Fallan Nirschl
Addiction (Substance Use Disorder) Registered Nurse in Seattle, Washington.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 2,788 in Addiction (Substance Use Disorder) 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
4K
Medicare Part D claims · 145 beneficiaries · Addiction (Substance Use Disorder) Registered Nurse avg: 955
Generic prescribing
93%
generic claims · 5% 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
Fallan Nirschl filed 3,944 Medicare Part D claims in 2023 as a Addiction (Substance Use Disorder) Registered Nurse in Seattle, Washington, prescribing 93% generic.
- 4K
- Part D claims, 2023
- 93%
- 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.
Fallan Nirschl's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,944 Top 9% higher than 91% 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 Fallan Nirschl?
Quality data not reportedPrimary specialty
Addiction (Substance Use Disorder) Registered Nurse
Medicare Part D claims
3,944 313% vs specialty avg
Specialty distribution in Washington
How Addiction (Substance Use Disorder) Registered Nurse compares to other specialties among Washington 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 Addiction (Substance Use Disorder) 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).
Fallan Nirschl appears in the CMS NPPES registry as an Addiction (Substance Use Disorder) Registered Nurse provider at 6837 29TH AVE NE, Seattle, WA, 98115, with a listed phone of (206) 471-9666. NPI 1184258014 was issued on 02/29/2020.
Medicare Part D records for calendar year 2023 show 3,944 prescription claims written by this provider, covering 145 Medicare beneficiaries and totaling roughly $185K in drug spend, split 5% brand-name and 93% generic by claim count, with an opioid prescribing rate of 0.6%.
Addiction (Substance Use Disorder) Registered Nurse is a narrow specialty nationwide, with 2,788 enrolled providers across 52 states and an average of 955 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 | 1184258014 |
|---|---|
| Specialty | Addiction (Substance Use Disorder) Registered Nurse |
| Gender | Female |
| NPI Issued | 02/29/2020 |
Hospital and facility affiliations
Facilities where Fallan Nirschl 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.
Felton Health Care Specialists PLLC
Seattle, WA
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 - Washington WMC 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 ~34K Washington medical licensees in 2023 - they are NOT specific to Fallan Nirschl. To verify Fallan Nirschl's current license status, search the WMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
88
Total board actions, Washington 2023
Across 85 cases
2.59
Actions per 1,000 licensees
Washington statewide rate
probation
Most common action type
31 cases
WMC 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 Washington disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Generic-heavy
Fallan Nirschl - brand share 5.0%
Addiction (Substance Use Disorder) Registered Nurse average
5% brand-name claims vs 93% generic, on 3,944 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.
3,944
Total Claims
$185K
Total Drug Cost
145
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 3,995
- Total Day Supply
- 107,240
- Brand vs Generic
- 5% brand / 93% generic
- Brand Drug Cost
- $88K
- Generic Drug Cost
- $96K
- Opioid Claims
- 24 (0.6% rate)
- Antibiotic Claims
- 46
Patient Demographics
- Average Patient Age
- 80.5 years
- Avg HCC Risk Score
- 2.06
- Gender Split
- 58% female / 42% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Fallan Nirschl prescribes most
Top Medicare Part D drugs by claim count, 2023
- Trazodone Hcl
Trazodone Hcl
292 claims
- Quetiapine Fumarate
Quetiapine Fumarate
240 claims
- Memantine Hcl
Memantine Hcl
180 claims
- Levothyroxine Sodium
Levothyroxine Sodium
131 claims
- Atorvastatin Calcium
Atorvastatin Calcium
127 claims
- Furosemide
Furosemide
122 claims
- Donepezil Hcl 99
Donepezil Hcl
99 claims
- Baclofen 95
Baclofen
95 claims
| Drug | Claims |
|---|---|
| Trazodone Hcl | 292 |
| Quetiapine Fumarate | 240 |
| Memantine Hcl | 180 |
| Levothyroxine Sodium | 131 |
| Atorvastatin Calcium | 127 |
| Furosemide | 122 |
| Donepezil Hcl | 99 |
| Baclofen | 95 |
| Mirtazapine | 92 |
| Citalopram Hbr Citalopram Hydrobromide | 88 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Addiction (Substance Use Disorder) Registered Nurse in WA →
All providers in Washington →
Compare specialties →
Addiction (Substance Use Disorder) Registered Nurse Overview
How Fallan Nirschl fits within the Addiction (Substance Use Disorder) Registered Nurse landscape nationally.
2,788
Addiction (Substance Use Disorder) Registered Nurse Providers in US
52
States with Addiction (Substance Use Disorder) Registered Nurse
955
Avg Claims per Provider
Fallan Nirschl's 3,944 claims are above the specialty average of 955.
Nearby Addiction (Substance Use Disorder) Registered Nurse Providers in Washington
Other clinicians with the same primary specialty enrolled in Washington, drawn from the same CMS NPPES roster as Nirschl.
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 Washington medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Addiction (Substance Use Disorder) 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 Fallan Nirschl's specialty? ▼
Fallan Nirschl specializes in Addiction (Substance Use Disorder) Registered Nurse and practices in Seattle, Washington.
How much does Fallan Nirschl prescribe under Medicare Part D? ▼
In 2023, Fallan Nirschl wrote 3,944 Medicare Part D claims totaling $185K in drug costs for 145 beneficiaries.
Where is Fallan Nirschl located? ▼
Fallan Nirschl is located at 6837 29TH AVE NE, Seattle, WA, 98115. Phone: (206) 471-9666.
What is Fallan Nirschl's NPI number? ▼
Fallan Nirschl's National Provider Identifier (NPI) is 1184258014, issued on 02/29/2020.
Does Fallan Nirschl prescribe more brand-name or generic drugs? ▼
Fallan Nirschl's prescribing is 5% brand-name and 93% generic drugs by claim count, with $88K in brand drug costs.
Does Fallan Nirschl prescribe opioids? ▼
Yes, Fallan Nirschl had 24 opioid claims in 2023 with an opioid prescribing rate of 0.6%.
How many Addiction (Substance Use Disorder) Registered Nurse providers are there in the US? ▼
There are 2,788 Addiction (Substance Use Disorder) Registered Nurse providers across 52 states in the US. The average Addiction (Substance Use Disorder) Registered Nurse provider writes 955 Medicare Part D claims per year.
What drugs does Fallan Nirschl prescribe most often? ▼
Based on 2023 Medicare Part D data, Fallan Nirschl's most frequently prescribed drugs include Trazodone Hcl, Quetiapine Fumarate, Memantine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Fallan Nirschl accept Medicare? ▼
Fallan Nirschl appears in CMS Medicare data with 3,944 Part D claims and 145 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Fallan Nirschl's credentials? ▼
Fallan Nirschl's NPI is 1184258014. 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.