IndividualActive
Mary Grace Guardiano
NPI 1235969452 · Registered Nurse · Oakland, CA
Mary Grace Guardiano is a Registered Nurse provider in Oakland, CA (NPI 1235969452).
Provider details
- NPI number
- 1235969452
- Entity type
- Individual
- Primary specialty
- Registered NurseNursing Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 633490 (CA)
Specialties & taxonomies
Nursing Service Providers
Profile Score
Established profile(56/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr 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
1451 28th Ave
Oakland, CA 94601-1632
Phone: (510) 261-9191
Street-level locationGet directions
Mailing address
1130 Park Ave Apt C
Alameda, CA 94501-5265
Registry dates
- Enumerated
- 2024-08-02
- Last updated
- 2024-08-02
- Certified
- 2024-08-02
Frequently asked questions
- What is Mary Grace Guardiano's NPI number?
- Mary Grace Guardiano's National Provider Identifier (NPI) is 1235969452, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Grace Guardiano's specialty?
- Mary Grace Guardiano is listed in the NPPES registry with a primary specialty of Registered Nurse (Nursing Service Providers).
- Where is Mary Grace Guardiano located?
- Mary Grace Guardiano's practice location on file with NPPES is 1451 28th Ave, Oakland, CA 94601-1632.
- What is Mary Grace Guardiano's phone number?
- The practice phone number listed in the NPPES registry for Mary Grace Guardiano is (510) 261-9191.
- Is Mary Grace Guardiano's NPI active?
- Yes — Mary Grace Guardiano's NPI (1235969452) is active in the NPPES registry as of the last update on 2024-08-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.