Ethan Ko, DO
NPI 1992955058 · Nephrology Physician · Fredericksburg, VA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ethan Ko, DO is a Nephrology Physician provider in Fredericksburg, VA (NPI 1992955058).
Provider details
- NPI number
- 1992955058
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 54475 (MN)
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
17 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
- 2008-09-25
- Last updated
- 2018-09-13
Frequently asked questions
- What is Ethan Ko's NPI number?
- Ethan Ko's National Provider Identifier (NPI) is 1992955058, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ethan Ko's specialty?
- Ethan Ko is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Ethan Ko located?
- Ethan Ko's practice location on file with NPPES is 609 Jefferson Davis Hwy, Fredericksburg, VA 22401-4436.
- What is Ethan Ko's phone number?
- The practice phone number listed in the NPPES registry for Ethan Ko is (540) 899-3107.
- Does Ethan Ko accept Medicare?
- Ethan Ko is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ethan Ko's NPI active?
- Yes — Ethan Ko's NPI (1992955058) is active in the NPPES registry as of the last update on 2018-09-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.