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Edit this profileAt a glance
- Hsc T12, Room 080, Stony Brook, NY 11794
About Katherine Malloy
Katherine A. Malloy, PA is a physician assistant practicing in Stony Brook, NY. According to Medicare claims data, Katherine cared for 103 Medicare patients across 104 services. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, new patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more, and emergency department visit with low level of medical decision making. This provider record is associated with NPI 1235624776.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (631) 444-1116
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
HSC T12, ROOM 080
Stony Brook, NY 11794
Procedures Most Often Billed to Medicare
104 services · 103 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
61 | As often as other peers in Physician Assistant |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
24 | As often as other peers in Physician Assistant |
| Emergency department visit with low level of medical decision making | Office visit | 99283 |
19 | As often as other peers in Physician Assistant |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other physician assistants at this location 5
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 4
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 24 related providers in 3 groups
Other physician assistants in Stony Brook 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2018 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Katherine A. Malloy specialize in?
Katherine A. Malloy is a physician assistant in Stony Brook, NY. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Katherine A. Malloy located?
Katherine A. Malloy is listed at Hsc T12, Room 080, Stony Brook, NY 11794. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Katherine A. Malloy's phone number?
The number on file is (631) 444-1116. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Katherine A. Malloy's NPI number?
Katherine A. Malloy's National Provider Identifier is 1235624776. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Katherine A. Malloy train?
Katherine A. Malloy attended Other, graduating in 2018. This comes from the CMS National Downloadable File.
CMS public data
How long has Katherine A. Malloy been practicing?
Katherine A. Malloy has 8 years experience. Calculated from a graduation year of 2018, reported in the CMS National Downloadable File.
CMS public data
What does Katherine A. Malloy do most often?
According to Medicare billing data, Katherine A. Malloy the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Katherine A. Malloy confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Katherine A. Malloy. If this is you, claiming it is free.
Guide.md
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