2026 NPPES data Allergy & Immunology Physician NPI 1639170525 MD
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ELAINE BARBIERI, MD

Allergy & Immunology Physician in GREAT FALLS, Montana. 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
761
Medicare Part D claims · 90 beneficiaries · Allergy & Immunology Physician avg: 764
Generic prescribing
56%
generic claims · 44% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$455.58
13 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: ELAINE BARBIERI, MD is a Allergy & Immunology Physician ([object Object]) practicing in GREAT FALLS, Montana with a Medicare Part D prescribing footprint of 761 claims across 90 beneficiaries — 44% brand-name prescribing . Industry payments of $455.58 across 13 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: ELAINE BARBIERI, MD filed 761 Medicare Part D claims in 2023 across GREAT FALLS, Montana. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ELAINE BARBIERI, MD 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).

ELAINE BARBIERI, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 08/02/2005

NPI 1639170525

Primary specialty

Allergy & Immunology Physician

Niche

3,390 US NPIs in this specialty

Medicare Part D claims

761 0% vs specialty avg

2023 prescription claims

Specialty avg: 764

Specialty distribution in Montana

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

Montana providers

Allergy & Immunology Physician share within Montana

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

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).

ELAINE BARBIERI, MD is a Allergy & Immunology Physician provider practicing in GREAT FALLS, Montana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1639170525. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

ELAINE BARBIERI, MD appears in the CMS NPPES registry as a Allergy & Immunology Physician provider holding MD credentials at 115 4TH ST S, GREAT FALLS, MT, 59401, with a listed phone of (406) 454-6973. NPI 1639170525 was issued on 08/02/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BARBIERI 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 761 prescription claims written by this provider, covering 90 Medicare beneficiaries and totaling roughly $639K in drug spend, split 44% brand-name and 56% 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

115 4TH ST S
GREAT FALLS, MT 59401

Provider Details

NPI 1639170525
Specialty Allergy & Immunology Physician
Credentials MD
Gender Female
NPI Issued 08/02/2005

Hospital and facility affiliations

Facilities where ELAINE BARBIERI, MD 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.

COMMUNITY HEALTH CARE CENTER INCORPORATED
GREAT FALLS, MT

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 ELAINE BARBIERI, MD. Source: openpaymentsdata.cms.gov.

Total received

$456

Largest payer

GENZYME 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.

Brand vs generic prescribing mix · Above average

ELAINE BARBIERI, MD — brand share 44.0%
Specialty average (est.)

44% brand-name claims vs 56% generic, on 761 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.

761
Total Claims
$639K
Total Drug Cost
90
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,082
Total Day Supply
30,484
Brand vs Generic
44% brand / 56% generic
Brand Drug Cost
$626K
Generic Drug Cost
$13K

Patient Demographics

Average Patient Age
68.7 years
Avg HCC Risk Score
1.07
Gender Split
73% female / 27% male
Age Distribution
<65: 14, 65-74: 53, 75-84: 23, 85+: 0

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Montelukast Sodium
162
Azelastine Hcl
67
Breo Ellipta
Fluticasone/Vilanterol
61
Fluticasone Propionate
61
Hizentra
Immun Glob G(Igg)/Pro/Iga 0-50
49
Trelegy Ellipta
Fluticasone/Umeclidin/Vilanter
48
Spiriva Respimat
Tiotropium Bromide
39
Albuterol Sulfate Hfa
Albuterol Sulfate
25
Prednisone
22
Advair Hfa
Fluticasone Propion/Salmeterol
21

* 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 ELAINE BARBIERI, MD 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

ELAINE BARBIERI, MD's 761 claims are below the specialty average of 764.

Nearby Allergy & Immunology Physician Providers in Montana

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

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

Frequently Asked Questions

What is ELAINE BARBIERI, MD's specialty?
ELAINE BARBIERI, MD specializes in Allergy & Immunology Physician and practices in GREAT FALLS, Montana. Credentials: MD.
How much does ELAINE BARBIERI, MD prescribe under Medicare Part D?
In 2023, ELAINE BARBIERI, MD wrote 761 Medicare Part D claims totaling $639K in drug costs for 90 beneficiaries.
Where is ELAINE BARBIERI, MD located?
ELAINE BARBIERI, MD is located at 115 4TH ST S, GREAT FALLS, MT, 59401. Phone: (406) 454-6973.
What is ELAINE BARBIERI, MD's NPI number?
ELAINE BARBIERI, MD's National Provider Identifier (NPI) is 1639170525, issued on 08/02/2005.
Does ELAINE BARBIERI, MD prescribe more brand-name or generic drugs?
ELAINE BARBIERI, MD's prescribing is 44% brand-name and 56% generic drugs by claim count, with $626K 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 ELAINE BARBIERI, MD prescribe most often?
Based on 2023 Medicare Part D data, ELAINE BARBIERI, MD's most frequently prescribed drugs include Montelukast Sodium, Azelastine Hcl, Breo Ellipta. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ELAINE BARBIERI, MD accept Medicare?
ELAINE BARBIERI, MD appears in CMS Medicare data with 761 Part D claims and 90 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ELAINE BARBIERI, MD's credentials?
ELAINE BARBIERI, MD's NPI is 1639170525 with credentials MD. 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