Quick answers
- Does Caroline G. Garretson accept Medicare assignment?
- Yes. Medicare's clinician data says Caroline G. Garretson accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Caroline G. Garretson's NPI number?
- 1134946130. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Caroline G. Garretson is enrolled with Medicare (CMS data updated October 2, 2026).
- 1500 William Floyd Pkwy, Fl 2 Room 201Shirley, NY 11967 (631) 543‑1440
- 994 W Jericho Tpke, Suite 104Smithtown, NY 11787 (631) 543‑1440
Group practices
Medicare enrollment lists Caroline G. Garretson as a member of this group (CMS data updated October 2, 2026).
- Timothy D. Groth MD PC43 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Shirley
Clinicians with the same Medicare primary specialty in Shirley, NY — not a recommendation.
Other clinicians in Timothy D. Groth MD PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2024 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1134946130 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians