IndividualActive
Isaac Grenzebach
NPI 1245103738 · Community Health Worker · South San Francisco, CA
Isaac Grenzebach is a Community Health Worker provider in South San Francisco, CA (NPI 1245103738).
Provider details
- NPI number
- 1245103738
- Entity type
- Individual
- Primary specialty
- Community Health WorkerOther Service Providers
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Other Service Providers
Profile Score
Basic profile(47/100 index)
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
83% 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
470 Noor Ave Ste B
South San Francisco, CA 94080-5929
Phone: (833) 342-1454
Street-level locationGet directions
Mailing address
1725 Hillside Blvd
South San Francisco, CA 94080-1331
Registry dates
- Enumerated
- 2025-09-29
- Last updated
- 2025-09-29
- Certified
- 2025-09-29
Frequently asked questions
- What is Isaac Grenzebach's NPI number?
- Isaac Grenzebach's National Provider Identifier (NPI) is 1245103738, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Isaac Grenzebach's specialty?
- Isaac Grenzebach is listed in the NPPES registry with a primary specialty of Community Health Worker (Other Service Providers).
- Where is Isaac Grenzebach located?
- Isaac Grenzebach's practice location on file with NPPES is 470 Noor Ave Ste B, South San Francisco, CA 94080-5929.
- What is Isaac Grenzebach's phone number?
- The practice phone number listed in the NPPES registry for Isaac Grenzebach is (833) 342-1454.
- Is Isaac Grenzebach's NPI active?
- Yes — Isaac Grenzebach's NPI (1245103738) is active in the NPPES registry as of the last update on 2025-09-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.