Katherine Harkess, M.D.
NPI 1295116143 · Obstetrics & Gynecology Physician · O'Fallon, MO
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Harkess, M.D. is a Obstetrics & Gynecology Physician provider in O'Fallon, MO (NPI 1295116143).
Provider details
- NPI number
- 1295116143
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 2019026841 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
11 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
3 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$19 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 15945 Clayton Road Suite 305Ballwin, MO 63011-8221Phone: (636) 256-5090
- 615 S New Ballas RdOb/GynSaint Louis, MO 63141-8221Phone: (314) 251-6062Fax: (314) 251-4376
Registry dates
- Enumerated
- 2015-06-16
- Last updated
- 2020-03-25
- Certified
- 2020-03-25
Frequently asked questions
- What is Katherine Harkess's NPI number?
- Katherine Harkess's National Provider Identifier (NPI) is 1295116143, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Harkess's specialty?
- Katherine Harkess is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Harkess located?
- Katherine Harkess's practice location on file with NPPES is 300 Winding Woods Drive Suite 200, O'Fallon, MO 63366.
- What is Katherine Harkess's phone number?
- The practice phone number listed in the NPPES registry for Katherine Harkess is (636) 240-0130.
- Does Katherine Harkess accept Medicare?
- Katherine Harkess is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Harkess's NPI active?
- Yes — Katherine Harkess's NPI (1295116143) is active in the NPPES registry as of the last update on 2020-03-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.