DR. KRISTIN MARY O'SULLIVAN M.D.
NPI 1245558980
Pediatrics in Mountain View, CA

Q: What is Kristin O'sullivan's NPI number?

The NPI number for Kristin O'sullivan is 1245558980. It was assigned to this individual provider in the NPPES registry on May 5, 2010.

Q: What is Kristin O'sullivan's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Active since May 05, 2010PECOS Enrolled

701 E EL CAMINO REAL, MOUNTAIN VIEW, CA 94040(650) 934-7800 Get Directions Write a Review

NPPES record last updated: December 10, 2014. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About Dr. Kristin Mary O'sullivan M.d. NPPES

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

DR. KRISTIN MARY O'SULLIVAN M.D. (NPI 1245558980) is an individual pediatrics provider in Mountain View, California, licensed in California (A-112124) and active in the NPI registry since May 2010. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1245558980

Entity TypeIndividualFemale

Primary Taxonomy208000000X

Provider Legal NameDR. KRISTIN MARY O'SULLIVANCredential: M.D.

Location Address701 E EL CAMINO REALMountain View, CA 94040-2833

Mailing Address2350 W. El Camino Real, 2nd FloorMountain View, CA 94040-6203 · (650) 934-7800

Phone(650) 934-7800

Sole ProprietorNo

Enumeration DateMay 5, 2010

Last NPPES UpdateDecember 10, 2014

✔ NPI 1245558980 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians

Taxonomy Code208000000X

License✔ Licensed in CA · A-112124

Definition

A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.

701 E EL CAMINO REAL, Mountain View, CA 94040

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Taro Health.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Kristin Mary O'sullivan M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignment

Medicare enrollment records show Kristin O'sullivan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Baystate Medical Practices, Inc

2,618 mi

Emergency Medical Services

759 CHESTNUT ST
Springfield, MA 01199

Reassigned Medicare billing, Massachusetts enrollment
1,537 clinicians in this Medicare group

NPI 1548205909 (413) 794-5700

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

$106.47 typical visit price

range $70.37 – $206.04

Typical copayment $26.61 (range $17.59 – $51.51)

Most-billed visit code 99203

Established Patient

$121.77 typical visit price

range $23.96 – $169.60

Typical copayment $30.44 (range $5.99 – $42.40)

Most-billed visit code 99214

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 20

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

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