Quick answers
- Where does Grant Keefer see patients?
- Medicare's clinician data lists 3 practice locations, including Lahaina, HI and Wailea, HI. Call before your visit to confirm the address.
- What is Grant Keefer's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Grant Keefer accept Medicare assignment?
- Medicare's clinician data says Grant Keefer may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- Does Grant Keefer offer telehealth?
- Medicare's clinician data says Grant Keefer offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Grant Keefer?
- (808) 667-7676, as listed in official Medicare / NPI Registry data.
- What is Grant Keefer's NPI number?
- 1437739703. 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 Grant Keefer is enrolled with Medicare (CMS data updated 2026-10-02).
- 3350 L Honoapiilani Rd, Suite 211Lahaina, HI 96761
- 3350l Honoapiilani Hwy, Suite 211Lahaina, HI 96761 (808) 667‑7676
- 3750 Wailea Alanui Dr, Suite B34Wailea, HI 96753 (808) 667‑7676
Group practices
Medicare enrollment lists Grant Keefer as a member of this group (CMS data updated 2026-10-02).
- Kaanapali Medical Services Inc5 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Lahaina
Clinicians with the same Medicare primary specialty in Lahaina, HI — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2021 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1437739703 |
| 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 2026-10-02, retrieved 2026-10-29
- 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