Katherine Ann Malloy, PA
- Medicare services, 2024
- 104
- Medicare patients, 2024
- 123
- Part D claims, 2024
- 87
- Hospital affiliations
- 1
- Medical group
- 1
- Practice address
- Health Sciences Center Suny, Stony Brook, NY 11794
- Practice phone
- Call (631) 444-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Katherine Malloy's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Katherine Ann Malloy is a physician assistant in Stony Brook, New York
Katherine Malloy practices at Stony Brook University Hospital in Stony Brook, New York, part of Stony Brook University.
Katherine Malloy's NPI, 1235624776, was assigned on June 27, 2018.
- NPI
- 1235624776NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4789935974
- NPI enumeration date
- June 27, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (631) 444-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Katherine Ann Malloy practices at 2 locations in Stony Brook, New York
Katherine Malloy's primary practice is Stony Brook University Hospital, at Health Sciences Center Suny, Stony Brook, NY 11794 in Suffolk County. The practice phone is (631) 444-4000. Katherine Malloy also practices at Stony Brook University Hospital, 101 Nicolls Rd, Stony Brook, NY 11794.
- Stony Brook University HospitalPrimaryHealth Sciences Center Suny, Stony Brook, NY 11794 · Suffolk CountyPhone(631) 444-4000
- Stony Brook University Hospital101 Nicolls Rd, Stony Brook, NY 11794 · Suffolk CountyPhone(631) 444-4100
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Katherine Ann Malloy is affiliated with 3 sites of care and 1 medical group
Katherine Malloy's primary practice is Stony Brook University Hospital in Stony Brook, New York, part of Stony Brook University. The medical group on file is New York Spine and Brain Surgery, UFPC. Dmand AI also links Katherine Malloy to 1 more clinical lab and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Katherine Ann Malloy's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Katherine Malloy practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Stony Brook University Hospital | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Stony Brook University and 6.2K+ hospitals, with verified contacts in the same login.
Katherine Ann Malloy is one of 11,456 physician assistants in New York
Physician assistant is Katherine Malloy's primary specialty in the NPI Registry, under taxonomy code 363A00000X.
Specialties and state licenses
- Physician assistantPrimary
Clinical focus
Dmand AI lists acute mini-stroke (TIA) and head injury among the conditions Katherine Malloy treats.
Physician assistants near Katherine Malloy
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
Katherine Ann Malloy billed Medicare for 104 services in 2024
CMS data shows 104 Medicare services from Katherine Malloy across 3 procedure codes in 2024, for 123 Medicare patients. Medicare paid $7,177 for them.
Where Katherine Malloy's Medicare services took place, 2024
- In an office8582%
- In a facility1918%
Katherine Malloy compared with the New York median for physician assistants, 2024
- Katherine Malloy
- New York median
- Medicare services
- 104vs 17641% below
- Medicare patients
- 123vs 7858% above
- Part D claims
- 64vs 24574% below
Medians across 6,477 physician assistants in New York with Dmand AI profiles that report each measure.
Katherine Malloy'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.
Need commercial claims for Katherine Malloy?
Medicare shows one payer. Book a meeting to get commercial claims data for Katherine Malloy and other physician assistants in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Katherine Ann Malloy treated 123 Medicare patients in 2024, average age 75
CMS counts 123 Medicare patients who saw Katherine Malloy in 2024. The largest group is 65 to 74, with 49 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 18% are also on Medicaid. Their average risk score is 1.80, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Katherine Malloy's median patient age at 64, with 64% women.
Katherine Malloy's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Katherine Malloy's Medicare patients by sex, 2024
- Women6049%
- Men6351%
Chronic conditions among Katherine Malloy's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Stroke or TIA61%
- Arthritis46%
- Diabetes42%
- Ischemic heart disease41%
- Anxiety40%
- Chronic kidney disease39%
Share of Medicare patients with each condition. A patient can have several.
Katherine Malloy'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
- Women64%
- Men36%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Katherine Ann Malloy wrote 87 Medicare Part D claims in 2024
In 2024, Katherine Malloy wrote 87 Medicare Part D claims for 27 patients. 63% of them were for generic drugs. CMS names the drug for 64 of them, across 2 drugs with 11 or more claims each, at $16,186 in total drug cost.
Katherine Malloy's Part D claims by kind of drug, 2024
- Generic55 claims63%
- Brand-name32 claims37%
Katherine Malloy'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.
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
How Katherine Ann Malloy takes part in Medicare
Katherine Malloy accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
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Sources for Katherine Ann Malloy's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Katherine Ann Malloy
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Katherine Ann Malloy's NPI number?
Katherine Ann Malloy's NPI number is 1235624776. It was assigned on June 27, 2018, and it is active in the NPI Registry.
What does Katherine Ann Malloy specialize in?
Katherine Ann Malloy is a physician assistant in Stony Brook, New York. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Katherine Ann Malloy practice?
Katherine Malloy practices at Health Sciences Center Suny, Stony Brook, NY 11794. Katherine Malloy also practices at 101 Nicolls Rd, Stony Brook, NY 11794. Katherine Malloy's primary practice is Stony Brook University Hospital in Stony Brook, New York, part of Stony Brook University. Dmand AI also links Katherine Malloy to 1 clinical lab and 1 group practice or clinic.
What is Katherine Ann Malloy's office phone number?
The practice phone on file for Katherine Malloy is (631) 444-4000.
Which hospitals is Katherine Ann Malloy affiliated with?
Katherine Malloy practices at Stony Brook University Hospital in Stony Brook, New York.
What medical group is Katherine Ann Malloy part of?
Katherine Malloy is linked to New York Spine and Brain Surgery, UFPC.
Does Katherine Ann Malloy accept Medicare?
Yes. CMS data shows Katherine Malloy billed Medicare for 104 services in 2024, and Katherine Malloy accepts Medicare assignment.
How many Medicare patients does Katherine Ann Malloy see?
CMS counts 123 Medicare patients who saw Katherine Malloy in 2024, with an average age of 75.
What services does Katherine Ann Malloy bill to Medicare?
In 2024, Katherine Malloy's most billed Medicare services were office visit, established patient (99213), office visit, new patient (99203) and emergency department visit (99283).
What drugs does Katherine Ann Malloy prescribe most?
In 2024 Medicare Part D data, Katherine Malloy's most prescribed drugs by claims were Clopidogrel and Brilinta.
How long has Katherine Ann Malloy been practicing?
Katherine Malloy graduated from medical school in 2018, 8 years ago.
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