NPI registry status
Active
2026 NPPES data Family Nurse Practitioner NPI 1609498658 NURSE PRACTITIONER
Verify on CMS → Christien Olewniczak, NURSE PRACTITIONER
Family Nurse Practitioner in Lancaster, 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
5K
Medicare Part D claims · 417 beneficiaries · Family Nurse Practitioner avg: 1K
Industry payments
$3.6K
120 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Christien Olewniczak, NURSE PRACTITIONER filed 5,063 Medicare Part D claims in 2024 as a Family Nurse Practitioner in Lancaster, New York.
- 5K
- Part D claims, 2024
- $3.6K
- industry payments (Sunshine Act)
- ≥94th
- pct by Part D claim volume (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 Christien Olewniczak, NURSE PRACTITIONER
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1609498658), first enumerated 05/13/2020.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 5,063 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Hospital affiliations
2 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$3.6K in reported industry payments (120 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
New York statewide board action statistics are published annually — these figures describe aggregate state activity, not Christien Olewniczak, NURSE PRACTITIONER'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 1609498658 · Family Nurse Practitioner
NPI-10 · ENUM-RECENT · TAX-MEGA · RX-MID · BOOK-MID · PHOTO-ENUM
- NPI-10 1609498658
- ENUM-RECENT 2020
- TAX-MEGA 217K Family Nurse
- RX-MID 5,063
- BOOK-MID 13,030 in New York
- PHOTO-ENUM Jenny Lieu · 2020
Christien Olewniczak, NURSE PRACTITIONER's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
5,063 ≥ 94th percentile 94% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about Christien Olewniczak, NURSE PRACTITIONER?
Quality data not reportedPrimary specialty
Family Nurse Practitioner
Medicare Part D claims
5,063 289% vs specialty avg
Specialty distribution in New York
How Family Nurse Practitioner compares to other specialties among New York 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 Family Nurse Practitioner. 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).
Practice Address
Provider Details
| NPI | 1609498658 |
|---|---|
| Specialty | Family Nurse Practitioner |
| Credentials | NURSE PRACTITIONER |
| Gender | Female |
| NPI Issued | 05/13/2020 |
Hospital and facility affiliations
Facilities where Christien Olewniczak, NURSE PRACTITIONER 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.
County OF Niagara
Lockport, NY
Wny Medical PC
Depew, 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).
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 Christien Olewniczak, NURSE PRACTITIONER. Source: openpaymentsdata.cms.gov.
Total received
$3.6K
Largest payer
Vanda Pharmaceuticals 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 - 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 Christien Olewniczak, NURSE PRACTITIONER. To verify Christien Olewniczak, NURSE PRACTITIONER'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 2024.
5,063
Total Claims
$805K
Total Drug Cost
417
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 6,892.267
- Total Day Supply
- 200,040
- Generic Drug Cost
- $109K
- Opioid Claims
- 91 (1.8% rate)
- Antibiotic Claims
- 45
Patient Demographics
- Average Patient Age
- 64.7 years
- Avg HCC Risk Score
- 2.02
- Gender Split
- 60% female / 40% male
- Age Distribution
- <65: 175, 65-74: 149, 75-84: 70, 85+: 23
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Christien Olewniczak, NURSE PRACTITIONER prescribes most
Top Medicare Part D drugs by claim count, 2024
- Clonazepam
Clonazepam
298 claims
- Alprazolam
Alprazolam
280 claims
- Quetiapine Fumarate
Quetiapine Fumarate
242 claims
- Sertraline Hcl
Sertraline Hcl
181 claims
- Buspirone Hcl
Buspirone Hcl
140 claims
- Trazodone Hcl
Trazodone Hcl
131 claims
- Mirtazapine
Mirtazapine
123 claims
- Fluoxetine Hcl 119
Fluoxetine Hcl
119 claims
| Drug | Claims |
|---|---|
| Clonazepam | 298 |
| Alprazolam | 280 |
| Quetiapine Fumarate | 242 |
| Sertraline Hcl | 181 |
| Buspirone Hcl | 140 |
| Trazodone Hcl | 131 |
| Mirtazapine | 123 |
| Fluoxetine Hcl | 119 |
| Lamotrigine | 114 |
| Escitalopram Oxalate | 111 |
* 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 Christien Olewniczak, NURSE PRACTITIONER 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
Christien Olewniczak, NURSE PRACTITIONER's 5,063 claims are above the specialty average of 1,302.
Nationwide Family Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Olewniczak, both outside New York so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2020)
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 Olewniczak.
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 Christien Olewniczak, NURSE PRACTITIONER's specialty? ▼
Christien Olewniczak, NURSE PRACTITIONER specializes in Family Nurse Practitioner and practices in Lancaster, New York. Credentials: NURSE PRACTITIONER.
How much does Christien Olewniczak, NURSE PRACTITIONER prescribe under Medicare Part D? ▼
In 2024, Christien Olewniczak, NURSE PRACTITIONER wrote 5,063 Medicare Part D claims totaling $805K in drug costs for 417 beneficiaries.
Where is Christien Olewniczak, NURSE PRACTITIONER located? ▼
Christien Olewniczak, NURSE PRACTITIONER is located at 3592 WALDEN AVE APT 3, Lancaster, NY, 14086. Phone: (716) 572-5946.
What is Christien Olewniczak, NURSE PRACTITIONER's NPI number? ▼
Christien Olewniczak, NURSE PRACTITIONER's National Provider Identifier (NPI) is 1609498658, issued on 05/13/2020.
Does Christien Olewniczak, NURSE PRACTITIONER prescribe opioids? ▼
Yes, Christien Olewniczak, NURSE PRACTITIONER had 91 opioid claims in 2024 with an opioid prescribing rate of 1.8%.
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 Christien Olewniczak, NURSE PRACTITIONER prescribe most often? ▼
Based on 2024 Medicare Part D data, Christien Olewniczak, NURSE PRACTITIONER's most frequently prescribed drugs include Clonazepam, Alprazolam, Quetiapine Fumarate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Christien Olewniczak, NURSE PRACTITIONER accept Medicare? ▼
Christien Olewniczak, NURSE PRACTITIONER appears in CMS Medicare data with 5,063 Part D claims and 417 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Christien Olewniczak, NURSE PRACTITIONER's credentials? ▼
Christien Olewniczak, NURSE PRACTITIONER's NPI is 1609498658 with credentials NURSE PRACTITIONER. 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.
- 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.