Provider Profile
Elizabeth Callahan, PA
Unclaimed ProfileAbout Elizabeth Callahan
Elizabeth Callahan, PA is a physician assistant practicing in West Islip, NY. Medicare claims data shows Elizabeth provided 1,320 services to 856 patients. The services billed most often include subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more, subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes, and initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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) 376-4318
- Email not available
Practice Locations
1000 MONTAUK HWY A2
West Islip, NY 11795
Procedures Most Often Billed to Medicare
1,320 services · 856 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more | Office visit | 99308 |
1,081 | More often than most peers in Physician Assistant |
| Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99309 |
228 | As often as other peers in Physician Assistant |
| Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes | Office visit | 99305 |
11 | Less often than most 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 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 3
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 — 22 related providers in 3 groups
Other physician assistants in West Islip 6
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2010 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Elizabeth Callahan specialize in?
Elizabeth Callahan is a physician assistant in West Islip, NY. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Elizabeth Callahan located?
Elizabeth Callahan is listed at 1000 Montauk Hwy A2, West Islip, NY 11795. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Elizabeth Callahan's phone number?
The number on file is (631) 376-4318. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Elizabeth Callahan?
Elizabeth Callahan's National Provider Identifier is 1578855565. 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 Elizabeth Callahan train?
Elizabeth Callahan attended Other, graduating in 2010. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Elizabeth Callahan have?
Elizabeth Callahan has 16 years experience. Calculated from a graduation year of 2010, reported in the CMS National Downloadable File.
CMS public data
What does Elizabeth Callahan do most often?
According to Medicare billing data, Elizabeth Callahan 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
Is Elizabeth Callahan's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Elizabeth Callahan. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.