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Katherine Grubiak, RD
NPI 1316153810 · Registered Dietitian · Los Angeles, CA
Katherine Grubiak, RD is a Registered Dietitian provider in Los Angeles, CA (NPI 1316153810).
Provider details
- NPI number
- 1316153810
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- RD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 861538 (IL)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Profile Score
Detailed profile(89/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
5701 S Hoover St
Los Angeles, CA 90037-4045
Phone: (323) 541-1600
Street-level locationGet directions
Mailing address
5701 S Hoover St
Los Angeles, CA 90037-4045
Registry dates
- Enumerated
- 2007-05-14
- Last updated
- 2008-02-14
Frequently asked questions
- What is Katherine Grubiak's NPI number?
- Katherine Grubiak's National Provider Identifier (NPI) is 1316153810, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Grubiak's specialty?
- Katherine Grubiak is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Katherine Grubiak located?
- Katherine Grubiak's practice location on file with NPPES is 5701 S Hoover St, Los Angeles, CA 90037-4045.
- What is Katherine Grubiak's phone number?
- The practice phone number listed in the NPPES registry for Katherine Grubiak is (323) 541-1600.
- Is Katherine Grubiak's NPI active?
- Yes — Katherine Grubiak's NPI (1316153810) is active in the NPPES registry as of the last update on 2008-02-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.