Katharine O'Malley, M.D.
NPI 1487896239 · Maternal & Fetal Medicine Physician · Mountain View, CA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katharine O'Malley, M.D. is a Maternal & Fetal Medicine Physician provider in Mountain View, CA (NPI 1487896239).
Provider details
- NPI number
- 1487896239
- Entity type
- Individual
- Primary specialty
- Maternal & Fetal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A125125 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
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
- 2009-03-25
- Last updated
- 2024-12-03
- Certified
- 2024-12-03
Frequently asked questions
- What is Katharine O'Malley's NPI number?
- Katharine O'Malley's National Provider Identifier (NPI) is 1487896239, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katharine O'Malley's specialty?
- Katharine O'Malley is listed in the NPPES registry with a primary specialty of Maternal & Fetal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Katharine O'Malley located?
- Katharine O'Malley's practice location on file with NPPES is 2495 Hospital Dr Ste 400, Mountain View, CA 94040-4157.
- What is Katharine O'Malley's phone number?
- The practice phone number listed in the NPPES registry for Katharine O'Malley is (650) 404-8210.
- Does Katharine O'Malley accept Medicare?
- Katharine O'Malley is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katharine O'Malley's NPI active?
- Yes — Katharine O'Malley's NPI (1487896239) is active in the NPPES registry as of the last update on 2024-12-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.