Katherine Johnson, D.O.
NPI 1619393899 · Obstetrics & Gynecology Physician · Grand Rapids, MI
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Johnson, D.O. is a Obstetrics & Gynecology Physician provider in Grand Rapids, MI (NPI 1619393899).
Provider details
- NPI number
- 1619393899
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 5101021006 (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
12 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
- 2014-03-11
- Last updated
- 2022-07-11
- Certified
- 2022-07-11
Frequently asked questions
- What is Katherine Johnson's NPI number?
- Katherine Johnson's National Provider Identifier (NPI) is 1619393899, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Johnson's specialty?
- Katherine Johnson is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Johnson located?
- Katherine Johnson's practice location on file with NPPES is 221 Michigan St Ne Ste 600, Grand Rapids, MI 49503-2540.
- What is Katherine Johnson's phone number?
- The practice phone number listed in the NPPES registry for Katherine Johnson is (616) 774-7035.
- Does Katherine Johnson accept Medicare?
- Katherine Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Johnson's NPI active?
- Yes — Katherine Johnson's NPI (1619393899) is active in the NPPES registry as of the last update on 2022-07-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.