Marissa Alvarez, NP
NPI 1740703834 · Psychiatric/Mental Health Nurse Practitioner · Flushing, NY
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marissa Alvarez, NP is a Psychiatric/Mental Health Nurse Practitioner provider in Flushing, NY (NPI 1740703834).
Provider details
- NPI number
- 1740703834
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 720492-1 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
4 documented practice locations
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
Additional practice locations (3)
- 834 Newport CircleRedwood City, CA 94065Phone: (650) 464-8231
- 135 W 50th St Fl 6New York, NY 10020-1201Phone: (650) 464-8231
- 142 W End Ave Apt 22mNew York, NY 10023Phone: (650) 464-8231
Registry dates
- Enumerated
- 2017-07-20
- Last updated
- 2023-04-29
- Certified
- 2023-04-29
Frequently asked questions
- What is Marissa Alvarez's NPI number?
- Marissa Alvarez's National Provider Identifier (NPI) is 1740703834, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Alvarez's specialty?
- Marissa Alvarez is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marissa Alvarez located?
- Marissa Alvarez's practice location on file with NPPES is 5645 Main St, Flushing, NY 11355-5045.
- What is Marissa Alvarez's phone number?
- The practice phone number listed in the NPPES registry for Marissa Alvarez is (347) 343-1656.
- Does Marissa Alvarez accept Medicare?
- Marissa Alvarez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marissa Alvarez's NPI active?
- Yes — Marissa Alvarez's NPI (1740703834) is active in the NPPES registry as of the last update on 2023-04-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.