2026 NPPES data Oncology Clinical Nurse Specialist NPI 1033313648 APN
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NANCY PORTER, APN

Oncology Clinical Nurse Specialist in MAYWOOD, Illinois. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
717
Medicare Part D claims · 164 beneficiaries · Oncology Clinical Nurse Specialist avg: 435

What the federal data shows

NANCY PORTER, APN filed 717 Medicare Part D claims in 2023 as a Oncology Clinical Nurse Specialist in MAYWOOD, Illinois.

717
Part D claims, 2023

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.

NANCY PORTER, APN's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

717 Top 29% higher than 71% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). This entry sits in this band. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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 NANCY PORTER, APN?

Quality data not reported

NPI registry status

Active

Issued 06/14/2007

NPI 1033313648

Primary specialty

Oncology Clinical Nurse Specialist

Rare

209 US NPIs in this specialty

Medicare Part D claims

717 65% vs specialty avg

2023 prescription claims

Specialty avg: 435

Specialty distribution in Illinois

How Oncology Clinical Nurse Specialist compares to other specialties among Illinois providers

Illinois providers

Oncology Clinical Nurse Specialist share within Illinois

1. Oncology Clinical Nurse Specialist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Oncology Clinical Nurse Specialist share within Illinois

Specialty board-certification context

Estimated specialty board-certified rate — Oncology Clinical Nurse Specialist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Oncology Clinical Nurse Specialist ABMS/AOA estimate

Est. board-certified rate (Oncology Clinical Nurse Specialist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Oncology Clinical Nurse Specialist) — ABMS / AOA estimate

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).

NANCY PORTER, APN appears in the CMS NPPES registry as a Oncology Clinical Nurse Specialist provider holding APN credentials at 2160 S 1ST AVE, MAYWOOD, IL, 60153, with a listed phone of (708) 216-4921. NPI 1033313648 was issued on 06/14/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what PORTER most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 717 prescription claims written by this provider, covering 164 Medicare beneficiaries and totaling roughly $437K in drug spend, with an opioid prescribing rate of 3.1%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Oncology Clinical Nurse Specialist is a narrow specialty nationwide, with 209 enrolled providers across 38 states and an average of 435 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

2160 S 1ST AVE
MAYWOOD, IL 60153

Provider Details

NPI 1033313648
Specialty Oncology Clinical Nurse Specialist
Credentials APN
Gender Female
NPI Issued 06/14/2007

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 NANCY PORTER, APN. To verify NANCY PORTER, 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.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

717
Total Claims
$437K
Total Drug Cost
164
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,308
Total Day Supply
37,943
Generic Drug Cost
$30K
Opioid Claims
22 (3.1% rate)
Antibiotic Claims
86

Patient Demographics

Average Patient Age
69.3 years
Avg HCC Risk Score
3.69
Gender Split
48% female / 52% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What NANCY PORTER, APN prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Acyclovir
129
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
73
Valacyclovir
Valacyclovir Hcl
60
Allopurinol
29
Gabapentin
28
Pantoprazole Sodium
28
Eliquis
Apixaban
20
Escitalopram Oxalate
15
Fluconazole
15
Prochlorperazine Maleate
15

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Oncology Clinical Nurse Specialist Overview

How NANCY PORTER, APN fits within the Oncology Clinical Nurse Specialist landscape nationally.

209
Oncology Clinical Nurse Specialist Providers in US
38
States with Oncology Clinical Nurse Specialist
435
Avg Claims per Provider

NANCY PORTER, APN's 717 claims are above the specialty average of 435.

Nearby Oncology Clinical Nurse Specialist Providers in Illinois

Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as PORTER.

Compare Oncology Clinical Nurse Specialist nationally: see state-by-state distribution →

Frequently Asked Questions

What is NANCY PORTER, APN's specialty?
NANCY PORTER, APN specializes in Oncology Clinical Nurse Specialist and practices in MAYWOOD, Illinois. Credentials: APN.
How much does NANCY PORTER, APN prescribe under Medicare Part D?
In 2023, NANCY PORTER, APN wrote 717 Medicare Part D claims totaling $437K in drug costs for 164 beneficiaries.
Where is NANCY PORTER, APN located?
NANCY PORTER, APN is located at 2160 S 1ST AVE, MAYWOOD, IL, 60153. Phone: (708) 216-4921.
What is NANCY PORTER, APN's NPI number?
NANCY PORTER, APN's National Provider Identifier (NPI) is 1033313648, issued on 06/14/2007.
Does NANCY PORTER, APN prescribe opioids?
Yes, NANCY PORTER, APN had 22 opioid claims in 2023 with an opioid prescribing rate of 3.1%.
How many Oncology Clinical Nurse Specialist providers are there in the US?
There are 209 Oncology Clinical Nurse Specialist providers across 38 states in the US. The average Oncology Clinical Nurse Specialist provider writes 435 Medicare Part D claims per year.
What drugs does NANCY PORTER, APN prescribe most often?
Based on 2023 Medicare Part D data, NANCY PORTER, APN's most frequently prescribed drugs include Acyclovir, Sulfamethoxazole-Trimethoprim, Valacyclovir. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NANCY PORTER, APN accept Medicare?
NANCY PORTER, APN appears in CMS Medicare data with 717 Part D claims and 164 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NANCY PORTER, APN's credentials?
NANCY PORTER, APN's NPI is 1033313648 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

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