Quick answers
- Which hospitals does Kenneth R. Witmer work at?
- Medicare's official clinician data lists Kenneth R. Witmer at 3 hospitals: Adventist Health Castle, Kahuku Medical Center and The Queens Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Kenneth R. Witmer see patients?
- Medicare's clinician data lists 2 practice locations, including Kaneohe, HI and Kailua, HI. Call before your visit to confirm the address.
- What is Kenneth R. Witmer's specialty?
- Medicare lists Urology as the primary specialty.
- Does Kenneth R. Witmer accept Medicare assignment?
- Yes. Medicare's clinician data says Kenneth R. Witmer accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does Kenneth R. Witmer offer telehealth?
- Medicare's clinician data says Kenneth R. Witmer offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Kenneth R. Witmer?
- (808) 263-5009, as listed in official Medicare / NPI Registry data.
- What is Kenneth R. Witmer's NPI number?
- 1518385327. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Kenneth R. Witmer works
Medicare's Facility Affiliation Data lists Kenneth R. Witmer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Adventist Health CastleKailua, HI · Acute Care Hospital · CCN 120006
- Kahuku Medical CenterKahuku, HI · Critical Access Hospital · CCN 121304
- The Queens Medical CenterHonolulu, HI · Acute Care Hospital · CCN 120001
Practice locations
Addresses where Kenneth R. Witmer is enrolled with Medicare (CMS data updated 2026-10-02).
- 46-001 Kamehameha Hwy, Suite 202Kaneohe, HI 96744 (808) 263‑5009
- 642 Ulukahiki St, Suite 103Kailua, HI 96734 (808) 263‑5241
Group practices
Medicare enrollment lists Kenneth R. Witmer as a member of this group (CMS data updated 2026-10-02).
- Castle Medical Center77 clinicians in the group
Specialties
- Urologyprimary
Other urologists in Hawaii
Clinicians with the same Medicare primary specialty in Hawaii — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Georgetown University School Of Medicine |
| Graduation year | 2014 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1518385327 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- 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