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Margaret Matzinger, RD
NPI 1467119685 · Registered Dietitian · Sunnyvale, CA
Margaret Matzinger, RD is a Registered Dietitian provider in Sunnyvale, CA (NPI 1467119685).
Provider details
- NPI number
- 1467119685
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- RD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 86144750 (CA)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Profile Score
Established profile(61/100 index)
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
151 Charles St
Sunnyvale, CA 94086-6062
Phone: (408) 598-0099
Street-level locationGet directions
Mailing address
151 Charles St
Sunnyvale, CA 94086-6062
Registry dates
- Enumerated
- 2021-11-22
- Last updated
- 2021-11-24
- Certified
- 2021-11-24
Frequently asked questions
- What is Margaret Matzinger's NPI number?
- Margaret Matzinger's National Provider Identifier (NPI) is 1467119685, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Matzinger's specialty?
- Margaret Matzinger is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Margaret Matzinger located?
- Margaret Matzinger's practice location on file with NPPES is 151 Charles St, Sunnyvale, CA 94086-6062.
- What is Margaret Matzinger's phone number?
- The practice phone number listed in the NPPES registry for Margaret Matzinger is (408) 598-0099.
- Is Margaret Matzinger's NPI active?
- Yes — Margaret Matzinger's NPI (1467119685) is active in the NPPES registry as of the last update on 2021-11-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.