Marissa Hahn, MD
NPI 1831518489 · Emergency Medicine Physician · Issaquah, WA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marissa Hahn, MD is a Emergency Medicine Physician provider in Issaquah, WA (NPI 1831518489).
Provider details
- NPI number
- 1831518489
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 60757309 (WA)
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
12 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)
- 300 Hospital ParkwayMount Vernon, WA 98274Phone: (360) 424-4111
- 201 16th Ave ESeattle, WA 98112-5226Phone: (206) 326-3000
- 325 9th Ave # Hmc3.ec.27, Box 359702Seattle, WA 98104Phone: (206) 744-8334
Registry dates
- Enumerated
- 2014-04-10
- Last updated
- 2021-04-08
- Certified
- 2021-04-08
Frequently asked questions
- What is Marissa Hahn's NPI number?
- Marissa Hahn's National Provider Identifier (NPI) is 1831518489, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Hahn's specialty?
- Marissa Hahn is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marissa Hahn located?
- Marissa Hahn's practice location on file with NPPES is 751 Ne Blakely Dr, Issaquah, WA 98029-6201.
- What is Marissa Hahn's phone number?
- The practice phone number listed in the NPPES registry for Marissa Hahn is (425) 381-6173.
- Does Marissa Hahn accept Medicare?
- Marissa Hahn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marissa Hahn's NPI active?
- Yes — Marissa Hahn's NPI (1831518489) is active in the NPPES registry as of the last update on 2021-04-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.