2026 NPPES data Physician Assistant NPI 1639618085 PA
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HILLARY SLINGO, PA

Physician Assistant in NILES, 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
3K
Medicare Part D claims · 295 beneficiaries · Physician Assistant avg: 790
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
94.1036/100
▲ 11 pts above national avg 83.1 · [object Object]
Industry payments
$13.64
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

HILLARY SLINGO, PA reported a CMS MIPS final score of 94.1036/100 — above the 83.1 national average — and filed 2,905 Medicare Part D claims in 2023.

94.1036/100
MIPS score · +11 vs avg
3K
Part D claims, 2023
91%
generic prescribing
$13.64
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.

HILLARY SLINGO, PA's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

94 Top 25% higher than 75% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

What does the federal data show about HILLARY SLINGO, PA?

High performer (top quartile)

NPI registry status

Active

Issued 02/17/2017

NPI 1639618085

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

2,905 268% vs specialty avg

2023 prescription claims

Specialty avg: 790

MIPS final score

94.1036/100 11.003600000000006% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Illinois

How Physician Assistant compares to other specialties among Illinois providers

Illinois providers

Physician Assistant share within Illinois

1. Physician Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Physician Assistant share within Illinois

Medicare quality performance — MIPS

HILLARY SLINGO, PA's 2023 MIPS final score plotted against the Physician Assistant national average

High performer (top quartile)
MIPS Final Score
94.1036/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Physician Assistant) — 94.1036/100 vs national avg 83.1

0%100%National avg83%94.1%
MIPS final score (Physician Assistant) — 94.1036/100 vs national avg 83.1

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).

HILLARY SLINGO, PA appears in the CMS NPPES registry as a Physician Assistant provider holding PA credentials at 7900 N MILWAUKEE AVE, NILES, IL, 60714, with a listed phone of (847) 825-0800. NPI 1639618085 was issued on 02/17/2017. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SLINGO 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 2,905 prescription claims written by this provider, covering 295 Medicare beneficiaries and totaling roughly $200K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 1.1%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 94.1036/100 for the 2023 performance year (Quality 82.5938), compared with the national average of 83.1.

Physician Assistant is a high-volume specialty nationwide, with 149,975 enrolled providers across 56 states and an average of 790 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

7900 N MILWAUKEE AVE
NILES, IL 60714

Provider Details

NPI 1639618085
Specialty Physician Assistant
Credentials PA
Gender Female
NPI Issued 02/17/2017

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

94.1036
Final Score
Avg: 83.1
82.5938
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where HILLARY SLINGO, PA 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.

NORTHWESTERN MEDICAL FACULTY FOUNDATION
EVANSTON, 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 HILLARY SLINGO, PA. Source: openpaymentsdata.cms.gov.

Total received

$14

Largest payer

Novo Nordisk 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 — 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 HILLARY SLINGO, PA. To verify HILLARY SLINGO, PA'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

HILLARY SLINGO, PA — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 2,905 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.

2,905
Total Claims
$200K
Total Drug Cost
295
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
7,354
Total Day Supply
215,321
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$140K
Generic Drug Cost
$60K
Opioid Claims
31 (1.1% rate)
Antibiotic Claims
59

Patient Demographics

Average Patient Age
76.6 years
Avg HCC Risk Score
1.04
Gender Split
51% female / 49% male

Top Prescribed Drugs (Medicare Part D)

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

What HILLARY SLINGO, PA 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
Atorvastatin Calcium
288
Levothyroxine Sodium
153
Omeprazole
119
Escitalopram Oxalate
111
Losartan Potassium
98
Amlodipine Besylate
95
Simvastatin
93
Rosuvastatin Calcium
75
Trazodone Hcl
73
Metoprolol Succinate
71

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

Physician Assistant Overview

How HILLARY SLINGO, PA fits within the Physician Assistant landscape nationally.

149,975
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider

HILLARY SLINGO, PA's 2,905 claims are above the specialty average of 790.

Nearby Physician Assistant Providers in Illinois

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

Compare Physician Assistant nationally: see state-by-state distribution →

Frequently Asked Questions

What is HILLARY SLINGO, PA's specialty?
HILLARY SLINGO, PA specializes in Physician Assistant and practices in NILES, Illinois. Credentials: PA.
How much does HILLARY SLINGO, PA prescribe under Medicare Part D?
In 2023, HILLARY SLINGO, PA wrote 2,905 Medicare Part D claims totaling $200K in drug costs for 295 beneficiaries.
What is HILLARY SLINGO, PA's Medicare quality score?
HILLARY SLINGO, PA has a CMS MIPS Final Score of 94.1036/100 (Quality: 82.5938). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is HILLARY SLINGO, PA located?
HILLARY SLINGO, PA is located at 7900 N MILWAUKEE AVE, NILES, IL, 60714. Phone: (847) 825-0800.
What is HILLARY SLINGO, PA's NPI number?
HILLARY SLINGO, PA's National Provider Identifier (NPI) is 1639618085, issued on 02/17/2017.
Does HILLARY SLINGO, PA prescribe more brand-name or generic drugs?
HILLARY SLINGO, PA's prescribing is 9% brand-name and 91% generic drugs by claim count, with $140K in brand drug costs.
Does HILLARY SLINGO, PA prescribe opioids?
Yes, HILLARY SLINGO, PA had 31 opioid claims in 2023 with an opioid prescribing rate of 1.1%.
How many Physician Assistant providers are there in the US?
There are 149,975 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
What drugs does HILLARY SLINGO, PA prescribe most often?
Based on 2023 Medicare Part D data, HILLARY SLINGO, PA's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Omeprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does HILLARY SLINGO, PA accept Medicare?
HILLARY SLINGO, PA appears in CMS Medicare data with 2,905 Part D claims and 295 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify HILLARY SLINGO, PA's credentials?
HILLARY SLINGO, PA's NPI is 1639618085 with credentials PA. 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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