Katherine A. Duffy, AuD

  • Bel Air, MD
  • Audiologist
NPI1407376080
Medicare patients, 2024
88
Affiliated sites
1
Medical group
1
State license
1
Year NPI issued
2017
Practice address
5 Bel Air S Pkwy Suite N1411 Suite N1411, Bel Air, MD 21015-6091
Practice phone
Call (410) 569-5999
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Harmony Hearing & Audiology

Audiology & hearing practice · Bel Air, Maryland

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Katherine A. Duffy is an audiologist in Bel Air, Maryland

Katherine Duffy practices at Harmony Hearing & Audiology in Bel Air, Maryland.

Katherine Duffy's NPI, 1407376080, was assigned on June 23, 2017. Katherine Duffy holds Maryland license 01427.

NPI and contact details
NPI enumeration date
June 23, 2017
NPI status
Active
Practice phone
(410) 569-5999
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
35
Medical school graduation
2017

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data

Katherine A. Duffy practices at Harmony Hearing & Audiology in Bel Air, Maryland

Katherine Duffy's primary practice is Harmony Hearing & Audiology, at 5 Bel Air S Pkwy Suite N1411 Suite N1411, Bel Air, MD 21015-6091. The practice phone is (410) 569-5999.

  • Harmony Hearing & Audiology
    5 Bel Air S Pkwy Suite N1411 Suite N1411, Bel Air, MD 21015-6091Phone(410) 569-5999

Source: Dmand AI Affiliation Data

Katherine A. Duffy is affiliated with 1 site of care and 1 medical group

Katherine Duffy's primary practice is Harmony Hearing & Audiology in Bel Air, Maryland. The medical group on file is Harmony Hearing & Audiology.

Harmony Hearing & AudiologyAudiology & hearing practice · Bel Air, MarylandPrimary
Harmony Hearing & AudiologyENT and audiology group, Bel Air, MD

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Katherine A. Duffy's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Katherine Duffy practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Harmony Hearing & AudiologyAvailable with a free account

Source: Dmand AI Technology Install Data

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Katherine A. Duffy is one of 285 audiologists in Maryland

Audiologist is Katherine Duffy's primary specialty in the NPI Registry, under taxonomy code 231H00000X. Katherine Duffy is licensed in Maryland.

Specialties and state licenses

  • Audiologist, MarylandPrimaryLicense 01427 · taxonomy 231H00000X

Audiologists near Katherine Duffy

Counts of audiologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Katherine A. Duffy treated 88 Medicare patients in 2024, average age 74

CMS counts 88 Medicare patients who saw Katherine Duffy in 2024. The largest group is 65 to 74, with 44 patients. 75% of them have high cholesterol, and 72% have high blood pressure. Their average risk score is 1.07, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Katherine Duffy's median patient age at 69, with 37% women.

Medicare patients, 202488
Average age74
Average risk score1.07

Katherine Duffy's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Katherine Duffy's Medicare patients by sex, 2024

  • Women4855%
  • Men4045%

Chronic conditions among Katherine Duffy's Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure72%
  3. Arthritis43%
  4. Ischemic heart disease30%
  5. Diabetes27%
  6. Mood disorders26%
  7. Depression23%
  8. Anxiety20%

Share of Medicare patients with each condition. A patient can have several.

Katherine Duffy's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 69

Patient panel by sex, all payers

  • Women37%
  • Men59%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Sources for Katherine A. Duffy's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Katherine A. Duffy

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What is Katherine A. Duffy's NPI number?

Katherine A. Duffy's NPI number is 1407376080. It was assigned on June 23, 2017, and it is active in the NPI Registry.

What does Katherine A. Duffy specialize in?

Katherine A. Duffy is an audiologist in Bel Air, Maryland. The primary specialty in the NPI Registry is Audiologist (taxonomy code 231H00000X).

Where does Katherine A. Duffy practice?

Katherine Duffy practices at 5 Bel Air S Pkwy Suite N1411 Suite N1411, Bel Air, MD 21015-6091. Katherine Duffy's primary practice is Harmony Hearing & Audiology in Bel Air, Maryland.

What is Katherine A. Duffy's office phone number?

The practice phone on file for Katherine Duffy is (410) 569-5999.

What is Katherine A. Duffy's medical license number?

Katherine Duffy holds Maryland license 01427.

What medical group is Katherine A. Duffy part of?

Katherine Duffy is linked to Harmony Hearing & Audiology.

How many Medicare patients does Katherine A. Duffy see?

CMS counts 88 Medicare patients who saw Katherine Duffy in 2024, with an average age of 74.

How long has Katherine A. Duffy been practicing?

Katherine Duffy graduated from medical school in 2017, 9 years ago.

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