Crystal Ayoob, RDN
NPI 1457012692 · Registered Dietitian · South San Francisco, CA
Crystal Ayoob, RDN is a Registered Dietitian provider in South San Francisco, CA (NPI 1457012692).
Provider details
- NPI number
- 1457012692
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- RDN
- Sex
- Female
- Sole proprietor
- No
- License
- 86108014 (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
4 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
- 2022-01-09
- Last updated
- 2022-01-09
- Certified
- 2021-12-21
Frequently asked questions
- What is Crystal Ayoob's NPI number?
- Crystal Ayoob's National Provider Identifier (NPI) is 1457012692, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Crystal Ayoob's specialty?
- Crystal Ayoob is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Crystal Ayoob located?
- Crystal Ayoob's practice location on file with NPPES is 201 Rockwood Dr, South San Francisco, CA 94080-5840.
- What is Crystal Ayoob's phone number?
- The practice phone number listed in the NPPES registry for Crystal Ayoob is (650) 255-0105.
- Is Crystal Ayoob's NPI active?
- Yes — Crystal Ayoob's NPI (1457012692) is active in the NPPES registry as of the last update on 2022-01-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.