Catherine Zopf Armstrong, PA

  • Johnson City, NY
  • Physician assistant
NPI1013550961PAC ID4587091798
Medicare services, 2024
298
Medicare patients, 2024
190
Part D claims, 2024
1,342
MIPS score, 2024
89
Hospital affiliations
2
Practice address
33-57 Harrison St, Johnson City, NY 13790
Practice phone
Call (607) 762-3027
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

UHS Wilson Medical Center

Johnson City, New York

See all 5 affiliations

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Catherine Zopf Armstrong is a physician assistant in Johnson City, New York

Catherine Armstrong practices at UHS Wilson Medical Center in Johnson City, New York.

Catherine Armstrong's NPI, 1013550961, was assigned on October 23, 2019. Catherine Armstrong holds New York license 024274.

NPI and contact details
Medicare PAC ID
4587091798
NPI enumeration date
October 23, 2019
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(607) 762-3027
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
33
Medical school graduation
2019

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Catherine Zopf Armstrong practices at UHS Wilson Medical Center in Johnson City, New York

Catherine Armstrong's primary practice is UHS Wilson Medical Center, at 33-57 Harrison St, Johnson City, NY 13790 in Broome County. The practice phone is (607) 762-3027.

  • UHS Wilson Medical Center
    33-57 Harrison St, Johnson City, NY 13790 · Broome CountyPhone(607) 762-3027

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Catherine Zopf Armstrong is affiliated with 3 sites of care and 2 medical groups

Catherine Armstrong's primary practice is UHS Wilson Medical Center in Johnson City, New York. Catherine Armstrong is also affiliated with UHS Binghamton General Hospital. The medical group on file is UHS Wilson Medical Center. Dmand AI also links Catherine Armstrong to 1 more hospital and 1 medical group, each named with a free account.

See all 5 affiliations for Catherine Armstrong

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Catherine Zopf Armstrong's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Catherine Armstrong practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
UHS Wilson Medical CenterAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Catherine Zopf Armstrong is one of 11,456 physician assistants in New York

Physician assistant is Catherine Armstrong's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Catherine Armstrong is licensed in New York.

Specialties and state licenses

  • Physician assistant, New YorkPrimaryLicense 024274 · taxonomy 363A00000X

Clinical focus

Dmand AI lists hemorrhoids and upper respiratory infection (URI) among the conditions Catherine Armstrong treats.

Physician assistants near Catherine Armstrong

Counts of physician assistants 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

Catherine Zopf Armstrong billed Medicare for 298 services in 2024

CMS data shows 298 Medicare services from Catherine Armstrong across 4 procedure codes in 2024, for 190 Medicare patients. Medicare paid $10,180 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024298
Medicare patients190
Paid by Medicare$10,180
Procedure codes4

Catherine Armstrong's Medicare services by type, 2024

  1. Office and hospital visits207
  2. Other services91

Catherine Armstrong compared with the New York median for physician assistants, 2024

  • Catherine Armstrong
  • New York median
Medicare services
298vs 17669% above
Medicare patients
190vs 782.4 times
Part D claims
1,170vs 2454.8 times

Medians across 6,477 physician assistants in New York with Dmand AI profiles that report each measure.

Catherine Armstrong's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Catherine Zopf Armstrong treated 190 Medicare patients in 2024, average age 71

CMS counts 190 Medicare patients who saw Catherine Armstrong in 2024. The largest group is 65 to 74, with 94 patients. 72% of them have high blood pressure, and 72% have high cholesterol. 17% are also on Medicaid. Their average risk score is 1.06, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Catherine Armstrong's median patient age at 64, with 58% women.

Medicare patients, 2024190
Average age71
Average risk score1.06
Also on Medicaid17%

Catherine Armstrong's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Catherine Armstrong's Medicare patients by sex, 2024

  • Women10656%
  • Men8444%

Chronic conditions among Catherine Armstrong's Medicare patients, 2024

  1. High blood pressure72%
  2. High cholesterol72%
  3. Arthritis44%
  4. Anxiety27%
  5. Diabetes26%
  6. Ischemic heart disease22%
  7. Cancer19%
  8. Mood disorders19%

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

Catherine Armstrong's patients across all payers

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

Patient panel by age, all payers

Median age 64

Patient panel by sex, all payers

  • Women58%
  • Men41%

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

Catherine Zopf Armstrong wrote 1,342 Medicare Part D claims in 2024

In 2024, Catherine Armstrong wrote 1,342 Medicare Part D claims for 566 patients. 78% of them were for generic drugs. CMS names the drug for 1,170 of them, across 23 drugs with 11 or more claims each, at $166,265 in total drug cost.

Part D claims, 20241,342
Drugs named by CMS23
Total drug cost$166,265
Part D patients566

Catherine Armstrong's Part D claims by kind of drug, 2024

  • Generic1,053 claims78%
  • Brand-name289 claims22%

Catherine Armstrong's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Catherine Armstrong's Part D claims, 2024

  • Antibiotics2%23 of 1,342 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

See all prescribing by Catherine Armstrong

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Catherine Zopf Armstrong scored 89 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Catherine Armstrong for performance year 2024, reported as part of a group. Catherine Armstrong accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Catherine Armstrong as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Catherine Armstrong's MIPS scores, performance year 2024

  • 89of 100Final score
  • 86.7of 100Quality
  • 99of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 70of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Catherine Zopf Armstrong received $178 in industry payments in 2025

CMS Open Payments shows 5 general payments to Catherine Armstrong from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Madrigal Pharmaceuticals paid the most, $156.

Companies that paid Catherine Armstrong the most, 2025 to 2025

Share is of all general payments to this clinician.

See all payments to Catherine Armstrong

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Catherine Zopf Armstrong'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Industry paymentsOpen Payments (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 Catherine Zopf Armstrong

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Catherine Zopf Armstrong's NPI number?

Catherine Zopf Armstrong's NPI number is 1013550961. It was assigned on October 23, 2019, and it is active in the NPI Registry.

What does Catherine Zopf Armstrong specialize in?

Catherine Zopf Armstrong is a physician assistant in Johnson City, New York. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).

Where does Catherine Zopf Armstrong practice?

Catherine Armstrong practices at 33-57 Harrison St, Johnson City, NY 13790. Catherine Armstrong's primary practice is UHS Wilson Medical Center in Johnson City, New York. Dmand AI also links Catherine Armstrong to 1 hospital and 1 medical group.

What is Catherine Zopf Armstrong's office phone number?

The practice phone on file for Catherine Armstrong is (607) 762-3027.

What is Catherine Zopf Armstrong's medical license number?

Catherine Armstrong holds New York license 024274.

Which hospitals is Catherine Zopf Armstrong affiliated with?

Catherine Armstrong is affiliated with UHS Binghamton General Hospital. Dmand AI links Catherine Armstrong to 1 more hospital.

What medical group is Catherine Zopf Armstrong part of?

Catherine Armstrong is linked to UHS Wilson Medical Center. Dmand AI links Catherine Armstrong to 1 more medical group.

Does Catherine Zopf Armstrong accept Medicare?

Yes. CMS data shows Catherine Armstrong billed Medicare for 298 services in 2024, and Catherine Armstrong accepts Medicare assignment.

Does Catherine Zopf Armstrong offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Catherine Armstrong as offering telehealth services.

What is Catherine Zopf Armstrong's MIPS score?

Catherine Armstrong's MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.

Show 5 more questionsShow fewer questions

How many Medicare patients does Catherine Zopf Armstrong see?

CMS counts 190 Medicare patients who saw Catherine Armstrong in 2024, with an average age of 71.

What services does Catherine Zopf Armstrong bill to Medicare?

In 2024, Catherine Armstrong's most billed Medicare services were office visit, established patient (99213), medicare service (G2211) and office visit, established patient (99214).

What drugs does Catherine Zopf Armstrong prescribe most?

In 2024 Medicare Part D data, Catherine Armstrong's most prescribed drugs by claims were Pantoprazole Sodium, Omeprazole and Sod Sulf-Potass Sulf-Mag Sulf.

Has Catherine Zopf Armstrong received payments from drug or device companies?

CMS Open Payments shows $178 in general payments to Catherine Armstrong from 2 companies from 2025 to 2025. The largest total came from Madrigal Pharmaceuticals.

How long has Catherine Zopf Armstrong been practicing?

Catherine Armstrong graduated from medical school in 2019, 7 years ago.

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