2026 NPPES data Allergy & Immunology Physician NPI 1417032160 M.D.
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AMY ELLINGSON, M.D.

Allergy & Immunology Physician in WILLMAR, Minnesota. 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
1K
Medicare Part D claims · 244 beneficiaries · Allergy & Immunology Physician avg: 764
Generic prescribing
66%
generic claims · 34% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$211.98
13 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

AMY ELLINGSON, M.D. filed 1,114 Medicare Part D claims in 2023 as a Allergy & Immunology Physician in WILLMAR, Minnesota, prescribing 66% generic.

1K
Part D claims, 2023
66%
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.

AMY ELLINGSON, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

1,114 Top 23% higher than 77% 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%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). This entry sits in this band. 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)

AMY ELLINGSON, M.D. 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 AMY ELLINGSON, M.D.?

Quality data not reported

NPI registry status

Active

Issued 10/25/2006

NPI 1417032160

Primary specialty

Allergy & Immunology Physician

Niche

3,390 US NPIs in this specialty

Medicare Part D claims

1,114 46% vs specialty avg

2023 prescription claims

Specialty avg: 764

Specialty distribution in Minnesota

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

Minnesota providers

Allergy & Immunology Physician share within Minnesota

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

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).

AMY ELLINGSON, M.D. appears in the CMS NPPES registry as a Allergy & Immunology Physician provider holding M.D. credentials at 1037 19TH AVE SW, WILLMAR, MN, 56201, with a listed phone of (320) 214-1100. NPI 1417032160 was issued on 10/25/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ELLINGSON 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 1,114 prescription claims written by this provider, covering 244 Medicare beneficiaries and totaling roughly $232K in drug spend, split 34% brand-name and 66% 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

1037 19TH AVE SW
WILLMAR, MN 56201

Provider Details

NPI 1417032160
Specialty Allergy & Immunology Physician
Credentials M.D.
Gender Female
NPI Issued 10/25/2006

Hospital and facility affiliations

Facilities where AMY ELLINGSON, M.D. 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.

AMY R ELLINGSON MD PA
WILLMAR, MN

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 AMY ELLINGSON, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$212

Largest payer

Takeda Pharmaceuticals U.S.A., 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.

Brand vs generic prescribing mix · Above average

AMY ELLINGSON, M.D. — brand share 34.0%
Specialty average (est.)

34% brand-name claims vs 66% generic, on 1,114 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.

1,114
Total Claims
$232K
Total Drug Cost
244
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,573
Total Day Supply
44,016
Brand vs Generic
34% brand / 66% generic
Brand Drug Cost
$178K
Generic Drug Cost
$54K
Antibiotic Claims
33

Patient Demographics

Average Patient Age
68.4 years
Avg HCC Risk Score
0.94
Gender Split
70% female / 30% male
Age Distribution
<65: 44, 65-74: 139, 75-84: 47, 85+: 14

Top Prescribed Drugs (Medicare Part D)

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

What AMY ELLINGSON, M.D. 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
Azelastine Hcl
132
Fluticasone Propionate
120
Montelukast Sodium
104
Trelegy Ellipta
Fluticasone/Umeclidin/Vilanter
70
Prednisone
54
Omeprazole
52
Symbicort
Budesonide/Formoterol Fumarate
46
Levocetirizine Dihydrochloride
43
Breo Ellipta
Fluticasone/Vilanterol
40
Pantoprazole Sodium
40

* 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 AMY ELLINGSON, M.D. 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

AMY ELLINGSON, M.D.'s 1,114 claims are above the specialty average of 764.

Nearby Allergy & Immunology Physician Providers in Minnesota

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

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

Frequently Asked Questions

What is AMY ELLINGSON, M.D.'s specialty?
AMY ELLINGSON, M.D. specializes in Allergy & Immunology Physician and practices in WILLMAR, Minnesota. Credentials: M.D..
How much does AMY ELLINGSON, M.D. prescribe under Medicare Part D?
In 2023, AMY ELLINGSON, M.D. wrote 1,114 Medicare Part D claims totaling $232K in drug costs for 244 beneficiaries.
Where is AMY ELLINGSON, M.D. located?
AMY ELLINGSON, M.D. is located at 1037 19TH AVE SW, WILLMAR, MN, 56201. Phone: (320) 214-1100.
What is AMY ELLINGSON, M.D.'s NPI number?
AMY ELLINGSON, M.D.'s National Provider Identifier (NPI) is 1417032160, issued on 10/25/2006.
Does AMY ELLINGSON, M.D. prescribe more brand-name or generic drugs?
AMY ELLINGSON, M.D.'s prescribing is 34% brand-name and 66% generic drugs by claim count, with $178K 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 AMY ELLINGSON, M.D. prescribe most often?
Based on 2023 Medicare Part D data, AMY ELLINGSON, M.D.'s most frequently prescribed drugs include Azelastine Hcl, Fluticasone Propionate, Montelukast Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does AMY ELLINGSON, M.D. accept Medicare?
AMY ELLINGSON, M.D. appears in CMS Medicare data with 1,114 Part D claims and 244 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify AMY ELLINGSON, M.D.'s credentials?
AMY ELLINGSON, M.D.'s NPI is 1417032160 with credentials M.D.. 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