Gwen Marcus, MD
NPI 1760424816 · Neonatal-Perinatal Medicine Physician · Seattle, WA
Gwen Marcus, MD is a Neonatal-Perinatal Medicine Physician provider in Seattle, WA (NPI 1760424816).
Provider details
- NPI number
- 1760424816
- Entity type
- Individual
- Primary specialty
- Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- License
- MD00038714 (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
20 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
- 2006-06-12
- Last updated
- 2007-07-08
Frequently asked questions
- What is Gwen Marcus's NPI number?
- Gwen Marcus's National Provider Identifier (NPI) is 1760424816, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gwen Marcus's specialty?
- Gwen Marcus is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gwen Marcus located?
- Gwen Marcus's practice location on file with NPPES is 9635 17th Ave Sw, Seattle, WA 98106-2712.
- What is Gwen Marcus's phone number?
- The practice phone number listed in the NPPES registry for Gwen Marcus is (206) 763-5057.
- Is Gwen Marcus's NPI active?
- Yes — Gwen Marcus's NPI (1760424816) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.