Harvey Olsen, M.D.
NPI 1780679647 · Gastroenterology Physician · Orinda, CA
Harvey Olsen, M.D. is a Gastroenterology Physician provider in Orinda, CA (NPI 1780679647).
Provider details
- NPI number
- 1780679647
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A22004 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2005-09-16
- Last updated
- 2018-11-12
Frequently asked questions
- What is Harvey Olsen's NPI number?
- Harvey Olsen's National Provider Identifier (NPI) is 1780679647, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Harvey Olsen's specialty?
- Harvey Olsen is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Harvey Olsen located?
- Harvey Olsen's practice location on file with NPPES is 50 Robert Rd, Orinda, CA 94563-3216.
- What is Harvey Olsen's phone number?
- The practice phone number listed in the NPPES registry for Harvey Olsen is (925) 254-6025.
- Is Harvey Olsen's NPI active?
- Yes — Harvey Olsen's NPI (1780679647) is active in the NPPES registry as of the last update on 2018-11-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.