Katherine Grubiak, RD
Registered Dietitian · Los Angeles, CA
Katherine Grubiak, RD is a registered dietitian with a practice address in Los Angeles, California, and NPI 1316153810, issued on May 14, 2007. Check the license with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Katherine Grubiak
- Credential
- RD
- Primary taxonomy
- Registered Dietitian 133V00000X
- License number
- 861538 IL
Self-reported in NPPES; status is on the state search - Practice location
- 5701 S Hoover St, Los Angeles, CA 90037
- Phone
- (323) 541-1600
- Enumerated
- May 14, 2007
- Entity
- Type 1 · individual
Also registered at 5701 S Hoover St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sawsan AliGeneral Practice Dentistry1831996966
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- Elena Fernandez, MSWMental Health Counselor1972745990
- Farid Hassanpour, D.O.Pediatrics Physician1598010308
- Patricia Howard, PAMedical Physician Assistant1063687523
- Mohammed Husain, D.D.S.General Practice Dentistry1972840346
Verify Katherine Grubiak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Registered Dietitian providers in California
There are 7,002 registered dietitian records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other registered dietitian records in California
- Nazanin Abbaspour, PHD, RDN, IFNCPSan Diego, CA1871180695
- Michelle AbbeySan Diego, CA1932692878
- Emily AbbottTorrance, CA1477064871
- Fatima Azzahra Abdelhafeez, RDAnaheim, CA1356003727
- Sulaima Abdin-ArafehPomona, CA1366980765
- Tamara Abdul Hadi, MSLos Angeles, CA1669356754
- Anita Abdul-KarimPasadena, CA1619365970
- Ruqaya AbdulkhaliqLong Beach, CA1447124037
- Ran Abe, R.D.Long Beach, CA1093186173
- Allison Abel, RDN, CNSCLos Angeles, CA1346664414
Common questions
What is Katherine Grubiak, RD's NPI number?
Katherine Grubiak, RD's National Provider Identifier (NPI) is 1316153810, issued on May 14, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Grubiak, RD located?
The NPPES record lists a practice address at 5701 S Hoover St, Los Angeles, CA, 90037. Phone: (323) 541-1600. Providers update this record themselves, so call before visiting.
How can I verify Katherine Grubiak, RD's license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.