Cissy Gu, RD
NPI 1700071305 · Renal Nutrition Registered Dietitian · San Dimas, CA
Cissy Gu, RD is a Renal Nutrition Registered Dietitian provider in San Dimas, CA (NPI 1700071305).
Provider details
- NPI number
- 1700071305
- Entity type
- Individual
- Primary specialty
- Renal Nutrition Registered DietitianDietary & Nutritional Service Providers
- Credential
- RD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 866115 (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
18 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
- 2007-09-07
- Last updated
- 2007-09-07
Frequently asked questions
- What is Cissy Gu's NPI number?
- Cissy Gu's National Provider Identifier (NPI) is 1700071305, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cissy Gu's specialty?
- Cissy Gu is listed in the NPPES registry with a primary specialty of Renal Nutrition Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Cissy Gu located?
- Cissy Gu's practice location on file with NPPES is 1317 Longhorn Dr, San Dimas, CA 91773-1152.
- What is Cissy Gu's phone number?
- The practice phone number listed in the NPPES registry for Cissy Gu is (909) 971-9204.
- Is Cissy Gu's NPI active?
- Yes — Cissy Gu's NPI (1700071305) is active in the NPPES registry as of the last update on 2007-09-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.