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KATHARINE NEWMAN O'MALLEY M.D.
NPI 1487896239
Obstetrics & Gynecology - Maternal & Fetal Medicine in Mountain View, CA

Active since March 25, 2009PECOS EnrolledAccepts Medicare Assignment
2495 HOSPITAL DR STE 400, MOUNTAIN VIEW, CA 94040(650) 404-8210 Get Directions Write a Review

NPPES record last updated: December 3, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Dec 3, 2024, Jan 10, 2022 (2 updates tracked since 2022).

About Katharine Newman O'malley M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KATHARINE NEWMAN O'MALLEY M.D. (NPI 1487896239) is an individual maternal & fetal medicine provider in Mountain View, California, licensed in California (A125125) and active in the NPI registry since March 2009. She is enrolled in Medicare PECOS and is a graduate of University Of California, San Francisco School Of Medicine (2009).

NPPES Registry Identity

NPI1487896239
Entity TypeIndividualFemale
Primary Taxonomy207VM0101X
Provider Legal NameKATHARINE NEWMAN O'MALLEYCredential: M.D.
Location Address2495 HOSPITAL DR STE 400Mountain View, CA 94040-4157
Mailing AddressPo Box 276950Sacramento, CA 95827-6950
Phone(650) 404-8210
Sole ProprietorNo
Medical School CMSUniversity Of California, San Francisco School Of MedicineGraduated 2009
Enumeration DateMarch 25, 2009
Last NPPES UpdateDecember 3, 20242 updates tracked since enumeration
NPPES CertifiedDecember 3, 2024
✔ NPI 1487896239 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyObstetrics & Gynecology · Maternal & Fetal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207VM0101X
License✔ Licensed in CA · A125125
Definition
An obstetrician/gynecologist who cares for, or provides consultation on, patients with complications of pregnancy. This specialist has advanced knowledge of the obstetrical, medical and surgical complications of pregnancy and their effect on both the mother and the fetus. The specialist also possesses expertise in the most current diagnostic and treatment modalities used in the care of patients with complicated pregnancies.
Also ListedObstetrics & GynecologyTaxonomy 207V00000X · License A125125 (CA)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
2495 HOSPITAL DR STE 400, Mountain View, CA 94040
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Other Names 1

Other Name (5)Katharine B Newman M.d.

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Katharine Newman O'malley M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3870750227
PECOS Enrollment IDI20130723000732
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Katharine O'malley reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Sutter Bay Medical Foundation
1.0 mi
Ambulatory Surgical
715 ALTOS OAKS DR
Los Altos, CA 94024
NPI 1568851327 (650) 934-3526
Permanente Medical Group Inc
5.2 mi
Internal Medicine
710 LAWRENCE EXPRESSWAY
Santa Clara, CA 95051
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1073606299 (408) 851-1000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94040 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$156.67 typical visit price
range $70.37 – $206.04
Typical copayment $39.16 (range $17.59 – $51.51)
Most-billed visit code 99204
Established Patient
$86.56 typical visit price
range $23.96 – $169.60
Typical copayment $21.64 (range $5.99 – $42.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ALLANA BOOTH M.S.
Genetic Counselor, MS
2495 HOSPITAL DR STE 400
MOUNTAIN VIEW, CA 94040
Santa Clara County (650) 404-8210
MS. LISA WILSON MS
Genetic Counselor, MS
2495 HOSPITAL DR STE 400
MOUNTAIN VIEW, CA 94040
Santa Clara County (650) 404-8210
SHILPA PREMA CHETTY MD
Obstetrics & Gynecology (Maternal & Fetal Medicine)
2495 HOSPITAL DR STE 400
MOUNTAIN VIEW, CA 94040
Santa Clara County (650) 404-8210
ROSETTA DOWLING
Genetic Counselor, MS
2495 HOSPITAL DR STE 400
MOUNTAIN VIEW, CA 94040
Santa Clara County (650) 404-8210
HEATHER TABERY MS, CGC
Genetic Counselor, MS
2495 HOSPITAL DR STE 400
MOUNTAIN VIEW, CA 94040
Santa Clara County (650) 404-8210

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Katharine O'malley's NPI number?

The NPI number for Katharine O'malley is 1487896239. It was assigned to this individual provider in the NPPES registry on March 25, 2009. The provider is also known as Katharine B Newman M.D..

Where is Katharine O'malley located?

Katharine O'malley practices at 2495 Hospital Dr Ste 400, Mountain View, CA 94040. The listed phone number is (650) 404-8210.

What is Katharine O'malley's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Maternal & Fetal Medicine, with taxonomy code 207VM0101X.

Is Katharine O'malley enrolled in Medicare?

Yes. Katharine O'malley is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Katharine O'malley's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Katharine O'malley reassigns Medicare benefits to 2 organizations: Sutter Bay Medical Foundation (Los Altos, CA) and Permanente Medical Group Inc (Santa Clara, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Katharine O'malley's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Katharine O'malley was last updated on December 3, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.