Kenneth Grubbs, D.O.
NPI 1588773295 · Family Medicine Physician · Orange, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kenneth Grubbs, D.O. is a Family Medicine Physician provider in Orange, CA (NPI 1588773295).
Provider details
- NPI number
- 1588773295
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20A6349 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 39 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 125 | 33 |
| Omeprazole | 74 | 20 |
| Lisinopril | 70 | 22 |
| Amlodipine Besylate | 69 | 22 |
| Losartan Potassium | 65 | 17 |
| Furosemide | 60 | 12 |
| Levothyroxine Sodium | 51 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$40 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-29
- Last updated
- 2014-03-04
Frequently asked questions
- What is Kenneth Grubbs's NPI number?
- Kenneth Grubbs's National Provider Identifier (NPI) is 1588773295, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kenneth Grubbs's specialty?
- Kenneth Grubbs is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Kenneth Grubbs located?
- Kenneth Grubbs's practice location on file with NPPES is 867 S Tustin St, Orange, CA 92866-3426.
- What is Kenneth Grubbs's phone number?
- The practice phone number listed in the NPPES registry for Kenneth Grubbs is (714) 771-1420.
- Does Kenneth Grubbs accept Medicare?
- Kenneth Grubbs is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kenneth Grubbs's NPI active?
- Yes — Kenneth Grubbs's NPI (1588773295) is active in the NPPES registry as of the last update on 2014-03-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.