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Michael Olff, DC
NPI 1679564942 · Chiropractor · Discovery Bay, CA
Michael Olff, DC is a Chiropractor provider in Discovery Bay, CA (NPI 1679564942).
Provider details
- NPI number
- 1679564942
- Entity type
- Individual
- Primary specialty
- ChiropractorChiropractic Providers
- Credential
- DC
- Sex
- Male
- License
- 12493 (CA)
Specialties & taxonomies
Chiropractic Providers
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
1555 Riverlake Rd
Ste. L.
Discovery Bay, CA 94514-9334
Phone: (925) 240-6533
Fax: (925) 778-8109
Street-level locationGet directions
Mailing address
1555 Riverlake Rd
Discovery Bay, CA 94514-9334
Registry dates
- Enumerated
- 2005-11-04
- Last updated
- 2007-07-08
Frequently asked questions
- What is Michael Olff's NPI number?
- Michael Olff's National Provider Identifier (NPI) is 1679564942, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Olff's specialty?
- Michael Olff is listed in the NPPES registry with a primary specialty of Chiropractor (Chiropractic Providers).
- Where is Michael Olff located?
- Michael Olff's practice location on file with NPPES is 1555 Riverlake Rd, Discovery Bay, CA 94514-9334.
- What is Michael Olff's phone number?
- The practice phone number listed in the NPPES registry for Michael Olff is (925) 240-6533.
- Is Michael Olff's NPI active?
- Yes — Michael Olff's NPI (1679564942) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.