NPI registry status
Active
2026 NPPES data Nurse Practitioner NPI 1205823093 N.P.
Verify on CMS → Holly Clark, N.P.
Nurse Practitioner in Orland Park, 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 87,700 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
551
Medicare Part D claims · 184 beneficiaries · Nurse Practitioner avg: 1K
Generic prescribing
89%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.7K
48 payments · CMS Open Payments (Sunshine Act)
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
Holly Clark, N.P. filed 551 Medicare Part D claims in 2023 as a Nurse Practitioner in Orland Park, Illinois, prescribing 89% generic.
- 551
- Part D claims, 2023
- 89%
- generic prescribing
- $1.7K
- 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.
Holly Clark, N.P.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
551 Top 34% higher than 66% 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 Holly Clark, N.P.?
Quality data not reportedPrimary specialty
Nurse Practitioner
Medicare Part D claims
551 49% 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).
Holly Clark, N.P. appears in the CMS NPPES registry as a Nurse Practitioner provider holding N.P. credentials at 15300 WEST AVE STE 224, Orland Park, IL, 60462, with a listed phone of (708) 923-8260. NPI 1205823093 was issued on 10/05/2005.
Medicare Part D records for calendar year 2023 show 551 prescription claims written by this provider, covering 184 Medicare beneficiaries and totaling roughly $25K in drug spend, split 9% brand-name and 89% generic by claim count.
Nurse Practitioner is a high-volume specialty nationwide, with 87,700 enrolled providers across 56 states and an average of 1,084 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 | 1205823093 |
|---|---|
| Specialty | Nurse Practitioner |
| Credentials | N.P. |
| Gender | Female |
| NPI Issued | 10/05/2005 |
Hospital and facility affiliations
Facilities where Holly Clark, N.P. 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.
Central Dupage Physician Group
Orland Park, IL
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 Holly Clark, N.P.. Source: openpaymentsdata.cms.gov.
Total received
$1.7K
Largest payer
Lilly USA, LLC
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 - 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 Holly Clark, N.P.. To verify Holly Clark, N.P.'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.
Brand vs generic prescribing mix · Generic-heavy
Holly Clark, N.P. - brand share 9.0%
Nurse Practitioner average
9% brand-name claims vs 89% generic, on 551 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.
551
Total Claims
$25K
Total Drug Cost
184
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,091
- Total Day Supply
- 28,337
- Brand vs Generic
- 9% brand / 89% generic
- Brand Drug Cost
- $17K
- Generic Drug Cost
- $8K
- Antibiotic Claims
- 98
Patient Demographics
- Average Patient Age
- 73.5 years
- Avg HCC Risk Score
- 0.98
- Gender Split
- 65% female / 35% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Holly Clark, N.P. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Azithromycin
Azithromycin
33 claims
- Amlodipine Besylate
Amlodipine Besylate
28 claims
- Methylprednisolone
Methylprednisolone
27 claims
- Levothyroxine Sodium
Levothyroxine Sodium
25 claims
- Amoxicillin-Clavul…
Amoxicillin-Clavulanate Potass
23 claims
- Atorvastatin Calcium
Atorvastatin Calcium
22 claims
- Lisinopril-Hydroch…
Lisinopril-Hydrochlorothiazide
22 claims
- Fluticasone Propio…
Fluticasone Propionate
18 claims
| Drug | Claims |
|---|---|
| Azithromycin | 33 |
| Amlodipine Besylate | 28 |
| Methylprednisolone | 27 |
| Levothyroxine Sodium | 25 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 23 |
| Atorvastatin Calcium | 22 |
| Lisinopril-Hydrochlorothiazide Lisinopril/Hydrochlorothiazide | 22 |
| Fluticasone Propionate | 18 |
| Pravastatin Sodium | 16 |
| Doxycycline Hyclate | 15 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nurse Practitioner Overview
How Holly Clark, N.P. fits within the Nurse Practitioner landscape nationally.
87,700
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,084
Avg Claims per Provider
Holly Clark, N.P.'s 551 claims are below the specialty average of 1,084.
Nearby Nurse Practitioner Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Clark.
Dr. Janice Abadilla
FNP-BC
Peoria, IL
Dr. Roseviminda Abano
CNP
Gurnee, IL
Philomena Abebe
Park Ridge, IL
Dr. Milagros Abellera
APN
Chicago, IL
Dr. Edwina Abloh
APN-CNP
Skokie, IL
Compare 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 Illinois medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby 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 Holly Clark, N.P.'s specialty? ▼
Holly Clark, N.P. specializes in Nurse Practitioner and practices in Orland Park, Illinois. Credentials: N.P..
How much does Holly Clark, N.P. prescribe under Medicare Part D? ▼
In 2023, Holly Clark, N.P. wrote 551 Medicare Part D claims totaling $25K in drug costs for 184 beneficiaries.
Where is Holly Clark, N.P. located? ▼
Holly Clark, N.P. is located at 15300 WEST AVE STE 224, Orland Park, IL, 60462. Phone: (708) 923-8260.
What is Holly Clark, N.P.'s NPI number? ▼
Holly Clark, N.P.'s National Provider Identifier (NPI) is 1205823093, issued on 10/05/2005.
Does Holly Clark, N.P. prescribe more brand-name or generic drugs? ▼
Holly Clark, N.P.'s prescribing is 9% brand-name and 89% generic drugs by claim count, with $17K in brand drug costs.
How many Nurse Practitioner providers are there in the US? ▼
There are 87,700 Nurse Practitioner providers across 56 states in the US. The average Nurse Practitioner provider writes 1,084 Medicare Part D claims per year.
What drugs does Holly Clark, N.P. prescribe most often? ▼
Based on 2023 Medicare Part D data, Holly Clark, N.P.'s most frequently prescribed drugs include Azithromycin, Amlodipine Besylate, Methylprednisolone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Holly Clark, N.P. accept Medicare? ▼
Holly Clark, N.P. appears in CMS Medicare data with 551 Part D claims and 184 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Holly Clark, N.P.'s credentials? ▼
Holly Clark, N.P.'s NPI is 1205823093 with credentials N.P.. 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.