2026 NPPES data Allergy & Immunology Physician NPI 1255421533
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ELLEN PRATT

Allergy & Immunology Physician in QUINCY, 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
195
Medicare Part D claims · 54 beneficiaries · Allergy & Immunology Physician avg: 764
Generic prescribing
76%
generic claims · 24% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$7.0K
46 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

ELLEN PRATT filed 195 Medicare Part D claims in 2023 as a Allergy & Immunology Physician in QUINCY, Illinois, prescribing 76% generic.

195
Part D claims, 2023
76%
generic prescribing
Likely
board-certified (heuristic)

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.

ELLEN PRATT's Medicare Part D volume vs every U.S. prescriber

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

195 35th percentile higher than 35% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 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

Board certification likely (heuristic — not verified)

ELLEN PRATT practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about ELLEN PRATT?

Quality data not reported

NPI registry status

Active

Issued 10/15/2006

NPI 1255421533

Primary specialty

Allergy & Immunology Physician

Niche

3,390 US NPIs in this specialty

Medicare Part D claims

195 74% vs specialty avg

2023 prescription claims

Specialty avg: 764

Specialty distribution in Illinois

How Allergy & Immunology Physician compares to other specialties among Illinois providers

Illinois providers

Allergy & Immunology Physician share within Illinois

1. Allergy & Immunology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Allergy & Immunology Physician share within Illinois

Specialty board-certification context

Estimated specialty board-certified rate — Allergy & Immunology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Allergy & Immunology Physician ABMS/AOA estimate

Est. board-certified rate (Allergy & Immunology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Allergy & Immunology Physician) — 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).

ELLEN PRATT appears in the CMS NPPES registry as a Allergy & Immunology Physician provider at 1025 MAINE ST, QUINCY, IL, 62301, with a listed phone of (217) 222-6550. NPI 1255421533 was issued on 10/15/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what PRATT 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 195 prescription claims written by this provider, covering 54 Medicare beneficiaries and totaling roughly $86K in drug spend, split 24% brand-name and 76% generic by claim count. 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.

Allergy & Immunology Physician is a narrow specialty nationwide, with 3,390 enrolled providers across 52 states and an average of 764 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

1025 MAINE ST
QUINCY, IL 62301

Provider Details

NPI 1255421533
Specialty Allergy & Immunology Physician
Gender Female
NPI Issued 10/15/2006

Hospital and facility affiliations

Facilities where ELLEN PRATT 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.

QUINCY PHYSICIANS AND SURGEONS CLINIC PLLC
QUINCY, 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 ELLEN PRATT. Source: openpaymentsdata.cms.gov.

Total received

$7.0K

Largest payer

CSL Behring

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 ELLEN PRATT. To verify ELLEN PRATT'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 · Typical

ELLEN PRATT — brand share 24.0%
Specialty average (est.)

24% brand-name claims vs 76% generic, on 195 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.

195
Total Claims
$86K
Total Drug Cost
54
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
315
Total Day Supply
8,718
Brand vs Generic
24% brand / 76% generic
Brand Drug Cost
$79K
Generic Drug Cost
$7K

Patient Demographics

Average Patient Age
67.8 years
Avg HCC Risk Score
1.02
Gender Split
69% female / 31% male

Top Prescribed Drugs (Medicare Part D)

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

What ELLEN PRATT 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
Fluticasone Propionate
44
Azelastine Hcl
38
Epinephrine
20
Hizentra
Immun Glob G(Igg)/Pro/Iga 0-50
16
Famotidine
15
Symbicort
Budesonide/Formoterol Fumarate
13
Levocetirizine Dihydrochloride
11

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

Allergy & Immunology Physician Overview

How ELLEN PRATT fits within the Allergy & Immunology Physician landscape nationally.

3,390
Allergy & Immunology Physician Providers in US
52
States with Allergy & Immunology Physician
764
Avg Claims per Provider

ELLEN PRATT's 195 claims are below the specialty average of 764.

Nearby Allergy & Immunology Physician Providers in Illinois

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

Compare Allergy & Immunology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ELLEN PRATT's specialty?
ELLEN PRATT specializes in Allergy & Immunology Physician and practices in QUINCY, Illinois.
How much does ELLEN PRATT prescribe under Medicare Part D?
In 2023, ELLEN PRATT wrote 195 Medicare Part D claims totaling $86K in drug costs for 54 beneficiaries.
Where is ELLEN PRATT located?
ELLEN PRATT is located at 1025 MAINE ST, QUINCY, IL, 62301. Phone: (217) 222-6550.
What is ELLEN PRATT's NPI number?
ELLEN PRATT's National Provider Identifier (NPI) is 1255421533, issued on 10/15/2006.
Does ELLEN PRATT prescribe more brand-name or generic drugs?
ELLEN PRATT's prescribing is 24% brand-name and 76% generic drugs by claim count, with $79K in brand drug costs.
How many Allergy & Immunology Physician providers are there in the US?
There are 3,390 Allergy & Immunology Physician providers across 52 states in the US. The average Allergy & Immunology Physician provider writes 764 Medicare Part D claims per year.
What drugs does ELLEN PRATT prescribe most often?
Based on 2023 Medicare Part D data, ELLEN PRATT's most frequently prescribed drugs include Fluticasone Propionate, Azelastine Hcl, Epinephrine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ELLEN PRATT accept Medicare?
ELLEN PRATT appears in CMS Medicare data with 195 Part D claims and 54 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ELLEN PRATT's credentials?
ELLEN PRATT's NPI is 1255421533. 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