Quick answers
- Where does Kenneth E. Grubbs see patients?
- Medicare's clinician data lists 1 practice location in Orange, CA. Call before your visit to confirm the address.
- What is Kenneth E. Grubbs's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Kenneth E. Grubbs accept Medicare assignment?
- Yes. Medicare's clinician data says Kenneth E. Grubbs 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.
- What is the phone number for Kenneth E. Grubbs?
- (714) 771-1420, as listed in official Medicare / NPI Registry data.
- What is Kenneth E. Grubbs's NPI number?
- 1588773295. 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 Kenneth E. Grubbs is enrolled with Medicare (CMS data updated 2026-10-02).
- 867 S Tustin StOrange, CA 92866 (714) 771‑1420
Group practices
Medicare enrollment lists Kenneth E. Grubbs as a member of this group (CMS data updated 2026-10-02).
- William H Nuesse M D and Mary Ann Nuesse D O A Medical Corporation2 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Orange
Clinicians with the same Medicare primary specialty in Orange, CA — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 1991 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1588773295 |
| 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