NPI registry status
Active
2026 NPPES data Acute Care Clinical Nurse Specialist NPI 1043553720 APN
Verify on CMS → Susan O'Mara, APN
Acute Care Clinical Nurse Specialist in Park Ridge, 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 508 in Acute Care Clinical Nurse Specialist, 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
245
Medicare Part D claims · 75 beneficiaries · Acute Care Clinical Nurse Specialist avg: 773
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$268.47
5 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
Susan O'Mara, APN filed 245 Medicare Part D claims in 2023 as a Acute Care Clinical Nurse Specialist in Park Ridge, Illinois, prescribing 93% generic.
- 245
- Part D claims, 2023
- 93%
- generic prescribing
- $268.47
- 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.
Susan O'Mara, APN's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
245 49th percentile higher than 49% 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 Susan O'Mara, APN?
Quality data not reportedPrimary specialty
Acute Care Clinical Nurse Specialist
Medicare Part D claims
245 68% vs specialty avg
Specialty distribution in Illinois
How Acute Care Clinical Nurse Specialist 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 Acute Care Clinical Nurse Specialist. 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).
Susan O'Mara, APN appears in the CMS NPPES registry as an Acute Care Clinical Nurse Specialist provider holding APN credentials at 1775 DEMPSTER ST, Park Ridge, IL, 60068, with a listed phone of (847) 723-7939. NPI 1043553720 was issued on 04/01/2013.
Medicare Part D records for calendar year 2023 show 245 prescription claims written by this provider, covering 75 Medicare beneficiaries and totaling roughly $10K in drug spend, split 7% brand-name and 93% generic by claim count.
Acute Care Clinical Nurse Specialist is a narrow specialty nationwide, with 508 enrolled providers across 47 states and an average of 773 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 | 1043553720 |
|---|---|
| Specialty | Acute Care Clinical Nurse Specialist |
| Credentials | APN |
| Gender | Female |
| NPI Issued | 04/01/2013 |
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 Susan O'Mara, APN. Source: openpaymentsdata.cms.gov.
Total received
$268
Largest payer
Edwards Lifesciences Corporation
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 Susan O'Mara, APN. To verify Susan O'Mara, APN'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
Susan O'Mara, APN - brand share 7.0%
Acute Care Clinical Nurse Specialist average
7% brand-name claims vs 93% generic, on 245 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.
245
Total Claims
$10K
Total Drug Cost
75
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 415
- Total Day Supply
- 11,434
- Brand vs Generic
- 7% brand / 93% generic
- Brand Drug Cost
- $6K
- Generic Drug Cost
- $3K
Patient Demographics
- Average Patient Age
- 72.8 years
- Avg HCC Risk Score
- 1.39
- Gender Split
- 36% female / 64% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Susan O'Mara, APN prescribes most
Top Medicare Part D drugs by claim count, 2023
- Pantoprazole Sodium
Pantoprazole Sodium
38 claims
- Metoprolol Succinate
Metoprolol Succinate
32 claims
- Mupirocin
Mupirocin
29 claims
- Atorvastatin Calcium
Atorvastatin Calcium
27 claims
- Furosemide
Furosemide
23 claims
- Amiodarone Hcl
Amiodarone Hcl
18 claims
| Drug | Claims |
|---|---|
| Pantoprazole Sodium | 38 |
| Metoprolol Succinate | 32 |
| Mupirocin | 29 |
| Atorvastatin Calcium | 27 |
| Furosemide | 23 |
| Amiodarone Hcl | 18 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Acute Care Clinical Nurse Specialist Overview
How Susan O'Mara, APN fits within the Acute Care Clinical Nurse Specialist landscape nationally.
508
Acute Care Clinical Nurse Specialist Providers in US
47
States with Acute Care Clinical Nurse Specialist
773
Avg Claims per Provider
Susan O'Mara, APN's 245 claims are below the specialty average of 773.
Nearby Acute Care Clinical Nurse Specialist Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as O'Mara.
Dr. Manisa Baker
APN
Downers Grove, IL
Dr. Tammy Barbour
DNP APRN-CNS
Belleville, IL
Emily Brey
Chicago, IL
Dr. Mary Digate
APN
Naperville, IL
Lora Dolman
Antioch, IL
Compare Acute Care Clinical Nurse Specialist 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 Acute Care Clinical Nurse Specialist 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 Susan O'Mara, APN's specialty? ▼
Susan O'Mara, APN specializes in Acute Care Clinical Nurse Specialist and practices in Park Ridge, Illinois. Credentials: APN.
How much does Susan O'Mara, APN prescribe under Medicare Part D? ▼
In 2023, Susan O'Mara, APN wrote 245 Medicare Part D claims totaling $10K in drug costs for 75 beneficiaries.
Where is Susan O'Mara, APN located? ▼
Susan O'Mara, APN is located at 1775 DEMPSTER ST, Park Ridge, IL, 60068. Phone: (847) 723-7939.
What is Susan O'Mara, APN's NPI number? ▼
Susan O'Mara, APN's National Provider Identifier (NPI) is 1043553720, issued on 04/01/2013.
Does Susan O'Mara, APN prescribe more brand-name or generic drugs? ▼
Susan O'Mara, APN's prescribing is 7% brand-name and 93% generic drugs by claim count, with $6K in brand drug costs.
How many Acute Care Clinical Nurse Specialist providers are there in the US? ▼
There are 508 Acute Care Clinical Nurse Specialist providers across 47 states in the US. The average Acute Care Clinical Nurse Specialist provider writes 773 Medicare Part D claims per year.
What drugs does Susan O'Mara, APN prescribe most often? ▼
Based on 2023 Medicare Part D data, Susan O'Mara, APN's most frequently prescribed drugs include Pantoprazole Sodium, Metoprolol Succinate, Mupirocin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Susan O'Mara, APN accept Medicare? ▼
Susan O'Mara, APN appears in CMS Medicare data with 245 Part D claims and 75 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Susan O'Mara, APN's credentials? ▼
Susan O'Mara, APN's NPI is 1043553720 with credentials APN. 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.