Mary Zernicke, RDN
NPI 1952248411 · Gerontological Nutrition Registered Dietitian · Berkeley, CA
Mary Zernicke, RDN is a Gerontological Nutrition Registered Dietitian provider in Berkeley, CA (NPI 1952248411).
Provider details
- NPI number
- 1952248411
- Entity type
- Individual
- Primary specialty
- Gerontological Nutrition Registered DietitianDietary & Nutritional Service Providers
- Credential
- RDN
- Sex
- Female
- Sole proprietor
- Yes
- License
- 479896 (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
Under 1 yr in 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
- 2026-05-01
- Last updated
- 2026-05-01
- Certified
- 2026-05-01
Frequently asked questions
- What is Mary Zernicke's NPI number?
- Mary Zernicke's National Provider Identifier (NPI) is 1952248411, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Zernicke's specialty?
- Mary Zernicke is listed in the NPPES registry with a primary specialty of Gerontological Nutrition Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Mary Zernicke located?
- Mary Zernicke's practice location on file with NPPES is 8 Oakvale Ave, Berkeley, CA 94705-2404.
- What is Mary Zernicke's phone number?
- The practice phone number listed in the NPPES registry for Mary Zernicke is (510) 798-7333.
- Is Mary Zernicke's NPI active?
- Yes — Mary Zernicke's NPI (1952248411) is active in the NPPES registry as of the last update on 2026-05-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.