Merissa Marei Guinto, NP
NPI 1194570911 · Acute Care Nurse Practitioner · Hayward, CA
Merissa Marei Guinto, NP is a Acute Care Nurse Practitioner provider in Hayward, CA (NPI 1194570911).
Provider details
- NPI number
- 1194570911
- Entity type
- Individual
- Primary specialty
- Acute Care Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 95029066 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 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
- 2024-04-23
- Last updated
- 2024-11-27
- Certified
- 2024-11-27
Frequently asked questions
- What is Merissa Marei Guinto's NPI number?
- Merissa Marei Guinto's National Provider Identifier (NPI) is 1194570911, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Merissa Marei Guinto's specialty?
- Merissa Marei Guinto is listed in the NPPES registry with a primary specialty of Acute Care Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Merissa Marei Guinto located?
- Merissa Marei Guinto's practice location on file with NPPES is 27200 Calaroga Ave, Hayward, CA 94545-4339.
- What is Merissa Marei Guinto's phone number?
- The practice phone number listed in the NPPES registry for Merissa Marei Guinto is (510) 264-4000.
- Is Merissa Marei Guinto's NPI active?
- Yes — Merissa Marei Guinto's NPI (1194570911) is active in the NPPES registry as of the last update on 2024-11-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.