Grobler Enterprises Inc
NPI 1841430535 · Internal Medicine Physician · Upland, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grobler Enterprises Inc is a Internal Medicine Physician organization in Upland, CA (NPI 1841430535).
Provider details
- NPI number
- 1841430535
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Nicolaas Grobler, President/Owner(909) 591-6575
- License
- A89047 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Other names (DBA / former)
- Doing business as
- Central Medical Group
- Doing business as
- Central Medical Group
Registry dates
- Enumerated
- 2009-02-20
- Last updated
- 2024-07-01
- Certified
- 2024-07-01
Frequently asked questions
- What is Grobler Enterprises Inc's NPI number?
- Grobler Enterprises Inc's National Provider Identifier (NPI) is 1841430535, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Grobler Enterprises Inc?
- Grobler Enterprises Inc is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Grobler Enterprises Inc located?
- Grobler Enterprises Inc's practice location on file with NPPES is 350 S Euclid Ave Ste C, Upland, CA 91786-6665.
- What is Grobler Enterprises Inc's phone number?
- The practice phone number listed in the NPPES registry for Grobler Enterprises Inc is (909) 591-6575.
- Does Grobler Enterprises Inc accept Medicare?
- Grobler Enterprises Inc is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Grobler Enterprises Inc?
- The authorized official listed on Grobler Enterprises Inc's NPPES record is Nicolaas Grobler, President/Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Grobler Enterprises Inc's NPI active?
- Yes — Grobler Enterprises Inc's NPI (1841430535) is active in the NPPES registry as of the last update on 2024-07-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.