Michael Maioriello, M.D.
NPI 1649283680 · Obstetrics & Gynecology Physician · Novato, CA
Michael Maioriello, M.D. is a Obstetrics & Gynecology Physician provider in Novato, CA (NPI 1649283680).
Provider details
- NPI number
- 1649283680
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A42597 (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
- 2006-08-14
- Last updated
- 2007-07-08
Frequently asked questions
- What is Michael Maioriello's NPI number?
- Michael Maioriello's National Provider Identifier (NPI) is 1649283680, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Maioriello's specialty?
- Michael Maioriello is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Maioriello located?
- Michael Maioriello's practice location on file with NPPES is 600 Professional Center Dr Ste 611, Novato, CA 94947-4364.
- What is Michael Maioriello's phone number?
- The practice phone number listed in the NPPES registry for Michael Maioriello is (415) 897-6089.
- Is Michael Maioriello's NPI active?
- Yes — Michael Maioriello's NPI (1649283680) 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.