Alyssa Mcgregor, MD
NPI 1255865945 · Anesthesiology Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alyssa Mcgregor, MD is a Anesthesiology Physician provider in Seattle, WA (NPI 1255865945).
Provider details
- NPI number
- 1255865945
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD61162810 (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
9 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
- 2017-04-19
- Last updated
- 2021-05-03
- Certified
- 2021-05-03
Frequently asked questions
- What is Alyssa Mcgregor's NPI number?
- Alyssa Mcgregor's National Provider Identifier (NPI) is 1255865945, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alyssa Mcgregor's specialty?
- Alyssa Mcgregor is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Alyssa Mcgregor located?
- Alyssa Mcgregor's practice location on file with NPPES is 1959 Ne Pacific St, Seattle, WA 98195-6540.
- What is Alyssa Mcgregor's phone number?
- The practice phone number listed in the NPPES registry for Alyssa Mcgregor is (206) 520-5000.
- Does Alyssa Mcgregor accept Medicare?
- Alyssa Mcgregor is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alyssa Mcgregor's NPI active?
- Yes — Alyssa Mcgregor's NPI (1255865945) is active in the NPPES registry as of the last update on 2021-05-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.