Katherine Gregersen, D.O.
NPI 1689993206 · Pediatric Critical Care Medicine Physician · Tacoma, WA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Gregersen, D.O. is a Pediatric Critical Care Medicine Physician provider in Tacoma, WA (NPI 1689993206).
Provider details
- NPI number
- 1689993206
- Entity type
- Individual
- Primary specialty
- Pediatric Critical Care Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 036133046 (IL)
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
16 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
- 2010-05-21
- Last updated
- 2021-10-08
- Certified
- 2021-10-08
Frequently asked questions
- What is Katherine Gregersen's NPI number?
- Katherine Gregersen's National Provider Identifier (NPI) is 1689993206, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Gregersen's specialty?
- Katherine Gregersen is listed in the NPPES registry with a primary specialty of Pediatric Critical Care Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Gregersen located?
- Katherine Gregersen's practice location on file with NPPES is 317 Martin Luther King Jr Way, Tacoma, WA 98405-4234.
- What is Katherine Gregersen's phone number?
- The practice phone number listed in the NPPES registry for Katherine Gregersen is (253) 403-1434.
- Does Katherine Gregersen accept Medicare?
- Katherine Gregersen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Gregersen's NPI active?
- Yes — Katherine Gregersen's NPI (1689993206) is active in the NPPES registry as of the last update on 2021-10-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.