Katherine Sage, D.O.
NPI 1073809935 · Orthopaedic Surgery Physician · Grand Rapids, MI
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Sage, D.O. is a Orthopaedic Surgery Physician provider in Grand Rapids, MI (NPI 1073809935).
Provider details
- NPI number
- 1073809935
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 5101019357 (MI)
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
15 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
- 2011-06-20
- Last updated
- 2018-04-18
Frequently asked questions
- What is Katherine Sage's NPI number?
- Katherine Sage's National Provider Identifier (NPI) is 1073809935, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Sage's specialty?
- Katherine Sage is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Sage located?
- Katherine Sage's practice location on file with NPPES is 1195 Wilson Ave Nw Ste 200, Grand Rapids, MI 49534-6405.
- What is Katherine Sage's phone number?
- The practice phone number listed in the NPPES registry for Katherine Sage is (616) 453-8277.
- Does Katherine Sage accept Medicare?
- Katherine Sage is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Sage's NPI active?
- Yes — Katherine Sage's NPI (1073809935) is active in the NPPES registry as of the last update on 2018-04-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.