Katherine Millen, MD
NPI 1578725669 · Maternal & Fetal Medicine Physician · Columbus, OH
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Millen, MD is a Maternal & Fetal Medicine Physician provider in Columbus, OH (NPI 1578725669).
Provider details
- NPI number
- 1578725669
- Entity type
- Individual
- Primary specialty
- Maternal & Fetal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 01075807A (IN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
- 2008-06-30
- Last updated
- 2022-01-25
Frequently asked questions
- What is Katherine Millen's NPI number?
- Katherine Millen's National Provider Identifier (NPI) is 1578725669, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Millen's specialty?
- Katherine Millen is listed in the NPPES registry with a primary specialty of Maternal & Fetal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Millen located?
- Katherine Millen's practice location on file with NPPES is 3535 Olentangy River Rd Fl 1, Columbus, OH 43214-3908.
- What is Katherine Millen's phone number?
- The practice phone number listed in the NPPES registry for Katherine Millen is (614) 566-4378.
- Does Katherine Millen accept Medicare?
- Katherine Millen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Millen's NPI active?
- Yes — Katherine Millen's NPI (1578725669) is active in the NPPES registry as of the last update on 2022-01-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.