Michael Mainardi M.D. Inc.
NPI 1780801001 · Gastroenterology Physician · San Mateo, CA
Michael Mainardi M.D. Inc. is a Gastroenterology Physician organization in San Mateo, CA (NPI 1780801001).
Provider details
- NPI number
- 1780801001
- Entity type
- Organization
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Michael Mainardi, President(650) 340-9977
- License
- G19146 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
- 2007-04-19
- Last updated
- 2012-07-13
Frequently asked questions
- What is Michael Mainardi M.D. Inc.'s NPI number?
- Michael Mainardi M.D. Inc.'s National Provider Identifier (NPI) is 1780801001, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Michael Mainardi M.D. Inc.?
- Michael Mainardi M.D. Inc. is classified in the NPPES registry as Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Mainardi M.D. Inc. located?
- Michael Mainardi M.D. Inc.'s practice location on file with NPPES is 50 S San Mateo Dr, San Mateo, CA 94401-3857.
- What is Michael Mainardi M.D. Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Michael Mainardi M.D. Inc. is (650) 685-6105.
- Who is the authorized official for Michael Mainardi M.D. Inc.?
- The authorized official listed on Michael Mainardi M.D. Inc.'s NPPES record is Michael Mainardi, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Michael Mainardi M.D. Inc.'s NPI active?
- Yes — Michael Mainardi M.D. Inc.'s NPI (1780801001) is active in the NPPES registry as of the last update on 2012-07-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.