Marissa Dahlgren
NPI 1588123632 · Physician Assistant · Bay Shore, NY
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marissa Dahlgren is a Physician Assistant provider in Bay Shore, NY (NPI 1588123632).
Provider details
- NPI number
- 1588123632
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 023300-1 (NY)
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
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 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 (2)
- 732 Smithtown BypSmithtown, NY 11787-5020Phone: (631) 656-9040
- 760 Sunrise HwyWest Babylon, NY 11704-6014Phone: (631) 242-1181
Registry dates
- Enumerated
- 2019-03-18
- Last updated
- 2019-05-16
Frequently asked questions
- What is Marissa Dahlgren's NPI number?
- Marissa Dahlgren's National Provider Identifier (NPI) is 1588123632, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Dahlgren's specialty?
- Marissa Dahlgren is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marissa Dahlgren located?
- Marissa Dahlgren's practice location on file with NPPES is 301 E Main St, Bay Shore, NY 11706-8408.
- What is Marissa Dahlgren's phone number?
- The practice phone number listed in the NPPES registry for Marissa Dahlgren is (631) 968-3000.
- Does Marissa Dahlgren accept Medicare?
- Marissa Dahlgren is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marissa Dahlgren's NPI active?
- Yes — Marissa Dahlgren's NPI (1588123632) is active in the NPPES registry as of the last update on 2019-05-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.