Margaret Guinnip, RDN
NPI 1598547457 · Registered Dietitian · Los Angeles, CA
Enrolled with Medicare as Practitioner - Registered Dietitian Or Nutrition Professional · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Guinnip, RDN is a Registered Dietitian provider in Los Angeles, CA (NPI 1598547457).
Provider details
- NPI number
- 1598547457
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- RDN
- Sex
- Female
- Sole proprietor
- No
- License
- 86277400 (CA)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 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
Registry dates
- Enumerated
- 2023-10-16
- Last updated
- 2024-08-02
- Certified
- 2024-08-02
Frequently asked questions
- What is Margaret Guinnip's NPI number?
- Margaret Guinnip's National Provider Identifier (NPI) is 1598547457, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Guinnip's specialty?
- Margaret Guinnip is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Margaret Guinnip located?
- Margaret Guinnip's practice location on file with NPPES is 200 Ucla Medical Plz Ste 265, Los Angeles, CA 90095-8344.
- What is Margaret Guinnip's phone number?
- The practice phone number listed in the NPPES registry for Margaret Guinnip is (310) 825-0867.
- Does Margaret Guinnip accept Medicare?
- Margaret Guinnip is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Guinnip's NPI active?
- Yes — Margaret Guinnip's NPI (1598547457) is active in the NPPES registry as of the last update on 2024-08-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.