2026 NPPES data Allergy & Immunology Physician NPI 1174595847 M.D.
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KENNETH BACKMAN, M.D.

Allergy & Immunology Physician in FAIRFIELD, Connecticut. 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
398
Medicare Part D claims · 110 beneficiaries · Allergy & Immunology Physician avg: 764
Generic prescribing
48%
generic claims · 52% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$761.66
3 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: KENNETH BACKMAN, M.D. is a Allergy & Immunology Physician ([object Object]) practicing in FAIRFIELD, Connecticut with a Medicare Part D prescribing footprint of 398 claims across 110 beneficiaries — 52% brand-name prescribing . Industry payments of $761.66 across 3 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: KENNETH BACKMAN, M.D. filed 398 Medicare Part D claims in 2023 across FAIRFIELD, Connecticut. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

KENNETH BACKMAN, 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).

KENNETH BACKMAN, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 02/06/2006

NPI 1174595847

Primary specialty

Allergy & Immunology Physician

Niche

3,390 US NPIs in this specialty

Medicare Part D claims

398 48% vs specialty avg

2023 prescription claims

Specialty avg: 764

Specialty distribution in Connecticut

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

Connecticut providers

Allergy & Immunology Physician share within Connecticut

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

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).

KENNETH BACKMAN, M.D. is a Allergy & Immunology Physician provider practicing in FAIRFIELD, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1174595847. 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.

KENNETH BACKMAN, M.D. appears in the CMS NPPES registry as a Allergy & Immunology Physician provider holding M.D. credentials at 55 WALLS DR, FAIRFIELD, CT, 06824, with a listed phone of (203) 259-7070. NPI 1174595847 was issued on 02/06/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BACKMAN 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 398 prescription claims written by this provider, covering 110 Medicare beneficiaries and totaling roughly $184K in drug spend, split 52% brand-name and 48% 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

55 WALLS DR
FAIRFIELD, CT 06824

Provider Details

NPI 1174595847
Specialty Allergy & Immunology Physician
Credentials M.D.
Gender Male
NPI Issued 02/06/2006

Hospital and facility affiliations

Facilities where KENNETH BACKMAN, 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.

ALLERGY AND ASTHMA CARE OF FAIRFIELD COUNTY LLC
TRUMBULL, CT

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 KENNETH BACKMAN, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$762

Largest payer

AstraZeneca Pharmaceuticals LP

Most common payment type

Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program

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 · Brand-heavy

KENNETH BACKMAN, M.D. — brand share 52.0%
Specialty average (est.)

52% brand-name claims vs 48% generic, on 398 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.

398
Total Claims
$184K
Total Drug Cost
110
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
625
Total Day Supply
17,936
Brand vs Generic
52% brand / 48% generic
Brand Drug Cost
$172K

Patient Demographics

Average Patient Age
74.3 years
Avg HCC Risk Score
0.99
Gender Split
66% female / 34% male

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
55
Albuterol Sulfate Hfa
Albuterol Sulfate
39
Symbicort
Budesonide/Formoterol Fumarate
31
Epinephrine
30
Fluticasone Propionate
27
Trelegy Ellipta
Fluticasone/Umeclidin/Vilanter
25
Azelastine Hcl
18
Breo Ellipta
Fluticasone/Vilanterol
15
Azelastine-Fluticasone
Azelastine/Fluticasone
13
Mometasone Furoate
12

* 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 KENNETH BACKMAN, 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

KENNETH BACKMAN, M.D.'s 398 claims are below the specialty average of 764.

Nearby Allergy & Immunology Physician Providers in Connecticut

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

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

Frequently Asked Questions

What is KENNETH BACKMAN, M.D.'s specialty?
KENNETH BACKMAN, M.D. specializes in Allergy & Immunology Physician and practices in FAIRFIELD, Connecticut. Credentials: M.D..
How much does KENNETH BACKMAN, M.D. prescribe under Medicare Part D?
In 2023, KENNETH BACKMAN, M.D. wrote 398 Medicare Part D claims totaling $184K in drug costs for 110 beneficiaries.
Where is KENNETH BACKMAN, M.D. located?
KENNETH BACKMAN, M.D. is located at 55 WALLS DR, FAIRFIELD, CT, 06824. Phone: (203) 259-7070.
What is KENNETH BACKMAN, M.D.'s NPI number?
KENNETH BACKMAN, M.D.'s National Provider Identifier (NPI) is 1174595847, issued on 02/06/2006.
Does KENNETH BACKMAN, M.D. prescribe more brand-name or generic drugs?
KENNETH BACKMAN, M.D.'s prescribing is 52% brand-name and 48% generic drugs by claim count, with $172K 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 KENNETH BACKMAN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, KENNETH BACKMAN, M.D.'s most frequently prescribed drugs include Montelukast Sodium, Albuterol Sulfate Hfa, Symbicort. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KENNETH BACKMAN, M.D. accept Medicare?
KENNETH BACKMAN, M.D. appears in CMS Medicare data with 398 Part D claims and 110 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KENNETH BACKMAN, M.D.'s credentials?
KENNETH BACKMAN, M.D.'s NPI is 1174595847 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