NPI registry status
Active
2026 NPPES data Nurse Practitioner NPI 1528124864 NP
Verify on CMS → Rowena Oliva, NP
Nurse Practitioner in Libertyville, Illinois.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 89,808 in 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
207
Medicare Part D claims · 66 beneficiaries · Nurse Practitioner avg: 1K
What the federal data shows
Rowena Oliva, NP filed 207 Medicare Part D claims in 2024 as a Nurse Practitioner in Libertyville, Illinois.
- 207
- Part D claims, 2024
- ≥48th
- 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 Rowena Oliva, NP
Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1528124864), first enumerated 12/29/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 207 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- State context
State board disciplinary context
Illinois statewide board action statistics are published annually — these figures describe aggregate state activity, not Rowena Oliva, NP's individual license status. Verify directly with the state medical board.
Source: IDFPR 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 1528124864 · Nurse Practitioner
NPI-10 · ENUM-LEGACY · TAX-MEGA · RX-LIGHT · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1528124864
- ENUM-LEGACY 2006
- TAX-MEGA 90K Nurse Practitioner
- RX-LIGHT 207
- BOOK-LIGHT 4,005 in Illinois
- PHOTO-ENUM William Duehlmeier,… · 2006
Rowena Oliva, NP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
207 ≥ 48th percentile 48% 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 Rowena Oliva, NP?
Quality data not reportedPrimary specialty
Nurse Practitioner
Medicare Part D claims
207 82% vs specialty avg
Specialty distribution in Illinois
How Nurse Practitioner compares to other specialties among Illinois 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 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 | 1528124864 |
|---|---|
| Specialty | Nurse Practitioner |
| Credentials | NP |
| Gender | Female |
| NPI Issued | 12/29/2006 |
License & disciplinary context - Illinois IDFPR 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 ~42K Illinois medical licensees in 2023 - they are NOT specific to Rowena Oliva, NP. To verify Rowena Oliva, NP's current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases
IDFPR 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 Illinois 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.
207
Total Claims
$5K
Total Drug Cost
66
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 291.533
- Total Day Supply
- 7,185
- Generic Drug Cost
- $4K
- Opioid Claims
- 26 (12.6% rate)
- Antibiotic Claims
- 18
Patient Demographics
- Average Patient Age
- 80.1 years
- Avg HCC Risk Score
- 2.96
- Gender Split
- 53% female / 47% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Rowena Oliva, NP prescribes most
Top Medicare Part D drugs by claim count, 2024
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
19 claims
- Amlodipine Besylate
Amlodipine Besylate
15 claims
- Furosemide
Furosemide
14 claims
- Gabapentin
Gabapentin
12 claims
| Drug | Claims |
|---|---|
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 19 |
| Amlodipine Besylate | 15 |
| Furosemide | 14 |
| Gabapentin | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nurse Practitioner Overview
How Rowena Oliva, NP fits within the Nurse Practitioner landscape nationally.
89,808
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,144
Avg Claims per Provider
Rowena Oliva, NP's 207 claims are below the specialty average of 1,144.
Nationwide Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Oliva, both outside Illinois so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Nurse Practitioner Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Oliva.
One of 4,005 Nurse Practitioner providers enrolled in Illinois, 5 are shown here.
Janice Abadilla
FNP-BC
Peoria, IL
Roseviminda Abano
CNP
Gurnee, IL
Philomena Abebe
Park Ridge, IL
Milagros Abellera
APN
Chicago, IL
Edwina Abloh
APN-CNP
Skokie, IL
Compare Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Rowena Oliva, NP's specialty? ▼
Rowena Oliva, NP specializes in Nurse Practitioner and practices in Libertyville, Illinois. Credentials: NP.
How much does Rowena Oliva, NP prescribe under Medicare Part D? ▼
In 2024, Rowena Oliva, NP wrote 207 Medicare Part D claims totaling $5K in drug costs for 66 beneficiaries.
Where is Rowena Oliva, NP located? ▼
Rowena Oliva, NP is located at 151 W GOLF RD, Libertyville, IL, 60048. Phone: (847) 682-4304.
What is Rowena Oliva, NP's NPI number? ▼
Rowena Oliva, NP's National Provider Identifier (NPI) is 1528124864, issued on 12/29/2006.
Does Rowena Oliva, NP prescribe opioids? ▼
Yes, Rowena Oliva, NP had 26 opioid claims in 2024 with an opioid prescribing rate of 12.6%.
How many Nurse Practitioner providers are there in the US? ▼
There are 89,808 Nurse Practitioner providers across 56 states in the US. The average Nurse Practitioner provider writes 1,144 Medicare Part D claims per year.
What drugs does Rowena Oliva, NP prescribe most often? ▼
Based on 2024 Medicare Part D data, Rowena Oliva, NP's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Amlodipine Besylate, Furosemide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Rowena Oliva, NP accept Medicare? ▼
Rowena Oliva, NP appears in CMS Medicare data with 207 Part D claims and 66 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Rowena Oliva, NP's credentials? ▼
Rowena Oliva, NP's NPI is 1528124864 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 (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.