Trisha Halvorsen, MD
NPI 1245585959 · Obstetrics & Gynecology Physician · Mount Vernon, WA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Trisha Halvorsen, MD is a Obstetrics & Gynecology Physician provider in Mount Vernon, WA (NPI 1245585959).
Provider details
- NPI number
- 1245585959
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 6838 (NE)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 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
- 2012-07-18
- Last updated
- 2016-10-18
Frequently asked questions
- What is Trisha Halvorsen's NPI number?
- Trisha Halvorsen's National Provider Identifier (NPI) is 1245585959, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Trisha Halvorsen's specialty?
- Trisha Halvorsen is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Trisha Halvorsen located?
- Trisha Halvorsen's practice location on file with NPPES is 1400 E Kincaid St, Mount Vernon, WA 98274-4127.
- What is Trisha Halvorsen's phone number?
- The practice phone number listed in the NPPES registry for Trisha Halvorsen is (360) 428-2575.
- Does Trisha Halvorsen accept Medicare?
- Trisha Halvorsen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Trisha Halvorsen's NPI active?
- Yes — Trisha Halvorsen's NPI (1245585959) is active in the NPPES registry as of the last update on 2016-10-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.