IndividualActive
Gretchen Zimmermann, RD
NPI 1306209051 · Registered Dietitian · San Geronimo, CA
Gretchen Zimmermann, RD is a Registered Dietitian provider in San Geronimo, CA (NPI 1306209051).
Provider details
- NPI number
- 1306209051
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- RD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 1060223 (CA)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Profile Score
Established profile(72/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 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
23 Hemlock Way
San Geronimo, CA 94963-9244
Phone: (415) 624-4224
Street-level locationGet directions
Mailing address
Po Box 244
San Geronimo, CA 94963-0244
Registry dates
- Enumerated
- 2016-03-31
- Last updated
- 2016-03-31
Frequently asked questions
- What is Gretchen Zimmermann's NPI number?
- Gretchen Zimmermann's National Provider Identifier (NPI) is 1306209051, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gretchen Zimmermann's specialty?
- Gretchen Zimmermann is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Gretchen Zimmermann located?
- Gretchen Zimmermann's practice location on file with NPPES is 23 Hemlock Way, San Geronimo, CA 94963-9244.
- What is Gretchen Zimmermann's phone number?
- The practice phone number listed in the NPPES registry for Gretchen Zimmermann is (415) 624-4224.
- Is Gretchen Zimmermann's NPI active?
- Yes — Gretchen Zimmermann's NPI (1306209051) is active in the NPPES registry as of the last update on 2016-03-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.